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HomeMy WebLinkAboutMINUTES - 03102015 - C.08RECOMMENDATION(S): ADOPT the previously certified City of Antioch Mitigated Negative Declaration for the West Antioch Creek Channel Improvements Project for the purpose of conducting real property transactions associated with the West Antioch Creek Channel Improvements Project in compliance with the California Environmental Quality Act (CEQA) (the custodian of which is the Department of Conservation and Development Director who is located at 33 Muir Road, Martinez); and, DIRECT the Director of Conservation and Development to file a Notice of Determination with the County Clerk; and, AUTHORIZE the Chief Engineer, or designee, to arrange for payment of a $50 fee to the County Clerk for filing the Notice of Determination, and a $25 fee to Department of Conservation and Development for processing. FISCAL IMPACT: 100% Drainage Area 55 up to $1,800,000. APPROVE OTHER RECOMMENDATION OF CNTY ADMINISTRATOR RECOMMENDATION OF BOARD COMMITTEE Action of Board On: 03/10/2015 APPROVED AS RECOMMENDED OTHER Clerks Notes: VOTE OF SUPERVISORS AYE:John Gioia, District I Supervisor Candace Andersen, District II Supervisor Mary N. Piepho, District III Supervisor Karen Mitchoff, District IV Supervisor ABSENT:Federal D. Glover, District V Supervisor Contact: Leigh Chavez, 925-313-2366 I hereby certify that this is a true and correct copy of an action taken and entered on the minutes of the Board of Supervisors on the date shown. ATTESTED: March 10, 2015 David Twa, County Administrator and Clerk of the Board of Supervisors By: Stacey M. Boyd, Deputy cc: CAO - D. Twa, Auditor-Controller, Environmental, L. Chavez, Public Works, Finance Division, Environmental, C. Gemberling, Public Works, Real Property, Public Works, Real Property - C. Pina-Sandoval, Department of Conservation and Development, D. Kelly, Public Works, Finance Division - L. Mangabay C. 8 To:Board of Supervisors From:Julia R. Bueren, Public Works Director/Chief Engineer Date:March 10, 2015 Contra Costa County Subject:ADOPT the previously certified City of Antioch Mitigated Negative Declaration for the West Antioch Creek Channel Improvements Project. BACKGROUND: The City of Antioch published an Initial Study/Mitigated Negative Declaration for the West Antioch Creek Channel Improvements Project in April 2014 which was approved and adopted by the Antioch City Council in September 2014. The project is intended to reduce flooding in the project area by increasing the capacity of West Antioch Creek channel between West 10th Street and West 8th Street and re-establishing the 25-year flood protection capacity of the channel downstream of West 8th Street to the Burlington Northern Sante Fe railroad trestle. Construction of the project will require acquisition of County-owned and privately-owned parcels which will require fee title transactions and permanent and temporary easements to be transferred to the City of Antioch. The City of Antioch has analyzed all impacts of the project and will obtain all necessary regulatory permits and environmental clearances prior to project implementation. CONSEQUENCE OF NEGATIVE ACTION: Delay in adopting the CEQA document may result in a delay of property acquisition which could delay project construction. CHILDREN'S IMPACT STATEMENT: Not applicable. ATTACHMENTS Antioch's Mitigated Negative Declaration - Sept. 2014 Notice of Determination DRAFT Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 Lead Agency: City of Antioch 200 H Street Antioch, CA 94509 Prepared By: ECORP Consulting, Inc. 2525 Warren Drive Rocklin, CA 95677 Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Contents i April 2014 CONTENTS Section 1. Background .........................................................................................................1-1  1.1 Summary .................................................................................................................. 1-1  1.2 Introduction .............................................................................................................. 1-1  1.3 Surrounding Land Uses/Environmental Setting ............................................................. 1-2  Section 2. Project Description ...............................................................................................2-9  2.1 Project Background .................................................................................................... 2-9  2.2 Project Characteristics and Alternatives ...................................................................... 2-10  2.3 Operations and Maintenance ..................................................................................... 2-33  2.4 Regulatory Requirements, Permits, and Approvals ...................................................... 2-34  Section 3. Environmental Factors Potentially Affected and Determination ................................3-1  Section 4. Environmental Checklist and Discussion .................................................................4-1  4.1 Aesthetics ................................................................................................................. 4-1  4.2 Agriculture and Forestry Resources ............................................................................. 4-8  4.3 Air Quality ............................................................................................................... 4-10  4.4 Biological Resources ................................................................................................. 4-15  4.5 Cultural Resources ................................................................................................... 4-45  4.6 Geology and Soils .................................................................................................... 4-51  4.7 Greenhouse Gas Emissions ....................................................................................... 4-55  4.8 Hazards and Hazardous Materials .............................................................................. 4-57  4.9 Hydrology and Water Quality .................................................................................... 4-67  4.10 Land Use and Planning ............................................................................................. 4-74  4.11 Mineral Resources .................................................................................................... 4-83  4.12 Noise ...................................................................................................................... 4-84  4.13 Population and Housing ............................................................................................ 4-91  4.14 Public Services ......................................................................................................... 4-92  4.15 Recreation ............................................................................................................... 4-93  4.16 Transportation/Traffic .............................................................................................. 4-95  4.17 Utilities and Service Systems .................................................................................... 4-102  4.18 Mandatory Findings of Significance ........................................................................... 4-106  Section 5. List of Preparers ..................................................................................................5-1  Section 6. Bibliography ........................................................................................................6-1  Section 7. List of Appendices ................................................................................................7-1  Appendix A – Air Quality/Climate Change Technical Report by KD Anderson October 2013; Revised April 2014 Appendix B – Biological Resources Assessment by Nomad Ecology April 2013; Revised September 2013 Appendix C – Cultural Resources Assessment by ECORP Consulting Inc. October 14, 2013 Appendix D – Noise Assessment by Bollard Acoustical Consultants, Inc. October 17, 2013 Appendix E – Paleontological Assessment by ECORP Consulting Inc. October 28, 2013 Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 ii Contents LIST OF TABLES Table 1. Alternatives for Reach A ............................................................................................ 2-12  Table 2. Alternative Comparison Matrix ................................................................................... 2-13  Table 3. Parcel Information and Easement Requirements ......................................................... 2-17  Table 4. Bay Area Air Quality Management District Operational Thresholds ................................ 4-11  Table 5. Potentially Occurring and Surveyed Federal and/or State and CNPS Listed Plant Species 4-29  Table 6. Potentially Occurring Special-Status Fish and Wildlife Species within Project Area .......... 4-31  Table 7. Construction Greenhouse Gas Emissions ..................................................................... 4-56  Table 8. General Plan Land Use and Zoning Designations ......................................................... 4-74  Table 9. Ambient Short-Term Noise Level Measurement Survey ................................................ 4-84  Table 10. Estimated Truck Trips from Hauling Soil and Vegetation from the Project Site ............. 4-99  Table 11. Current and Proposed Projects in the City of Antioch ............................................... 4-106  LIST OF FIGURES Figure 1. Vicinity ..................................................................................................................... 1-3  Figure 2a. Project Location/Surrounding Land Uses ................................................................... 1-5  Figure 2b. Staging/Stockpiling Areas and Access Points ............................................................. 1-7  Figure 3a. Alternative 1 – Hybrid Option .................................................................................. 2-19  Figure 3b. Alternative 2 – Maximum Culvert Option .................................................................. 2-21  Figure 3c. Alternative 3 – Minimum Culvert Option ................................................................... 2-23  Figure 3d. Alternative 4 – Full Parcel Acquisition ...................................................................... 2-25  Figure 3e. Alternative 5 – Alternate Minimum Culvert Option .................................................... 2-27  Figure 4. Desilting Extent and Sections .................................................................................... 2-29  Figure 5. Potentially Impacted Parcels ..................................................................................... 2-31  Figure 6. HCP/NCCP Land Cover Types .................................................................................... 4-17  Figure 7a. Potentially Jurisdictional Wetlands and Waters ......................................................... 4-21  Figure 7b. Potentially Jurisdictional Wetlands and Waters ......................................................... 4-23  Figure 8a. Special-Status Plant Species within the Vicinity ......................................................... 4-25  Figure 8b. Special-Status Wildlife Species within the Vicinity ..................................................... 4-27  Figure 9. Former 500-Gallon Waste Oil UST - 1400 West Tenth Street ....................................... 4-61  Figure 10. Somersville Road Corridor Focus Area ..................................................................... 4-76  Figure 11. Rivertown/Urban Waterfront Focus Area .................................................................. 4-81  Figure 12. Project Area Circulation .......................................................................................... 4-96  Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Contents iii April 2014 REPRESENTATIVE SITE PHOTOS Photo 1. Flooding at the intersection of O and West Tenth Streets in 2006. ................................ 2-9  Photo 2. Existing culverts under West Tenth Street. ................................................................. 2-10  Photo 3. Creek channel under wooden planking (north side of West Tenth and O streets) and apartment building on east side of creek channel. .................................................................... 2-11  Photo 4. Reach A-1, north view of channel looking downstream/along O Street, showing earthen channel at the Fairgrounds property. (Nomad 2013a) ................................................................ 4-2  Photo 5. Reach A-1/Reach A-2 Transition Point, view of channel looking south, from east side of West Tenth Street. (Nomad 2013a) ......................................................................................... 4-2  Photo 6.Reach A-2, open concrete channel, looking north with the carport on the right and vacant county owned land on the right and left. (Nomad 2013a) .......................................................... 4-3  Photo 7. Reach B-1, earthen channel looking north towards the culverts at Fourth Street. (ECORP 2013a) ................................................................................................................................... 4-3  Photo 8. Reach B-1, earthen channel looking south. (Nomad 2013a) .......................................... 4-4  Photo 9. Reach B-2, looking south towards West Fourth Street with industrial building on the left/east. (ECORP 2013a) ........................................................................................................ 4-4  Photo 10. Reach B-3, looking south with industrial buildings on east and west and the historical society building in the center background. (ECORP 2013a) ........................................................ 4-5  Photo 11. Reach B-4, looking northeast towards the Dow Wetlands Preserve north of the railroad tracks. (ECORP 2013a) ............................................................................................................ 4-5  Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 iv Contents THIS PAGE INTENTIONALLY LEFT BLANK Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Contents v April 2014 ACRONYMS AND ABBREVIATIONS AB Assembly Bill ABAG Association of Bay Area Governments BAAQMD Bay Area Air Quality Management District BAC Bollard Acoustical Consultants BMP Best Management Practices BNSF Burlington Northern Santa Fe railroad BRA Biological Resource Assessment Caltrans California Department of Transportation CARB California Air Resources Board CCC Contra Costa County CCR California Code of Regulations CDFG California Department of Fish and Game CDFW California Department of Fish and Wildlife CO carbon monoxide CRHR California Register of Historical Resources CEPA California Environmental Protection Agency CEQA California Environmental Quality Act CESA California Endangered Species Act CFR Code of Federal Regulations CNPS California Native Plant Society CVRWQCB Central Valley Regional Water Quality Control Board CWA Clean Water Act dBA Decibel DOC California Department of Conservation EBRPD East Bay Regional Park District EIR Environmental Impact Report EPA Environmental Protection Agency FEMA Federal Emergency Management Agency FESA Federal Endangered Species Act FR Federal Register GHG Greenhouse Gas GIS Geographic Information Systems HCP Habitat Conservation Plan HHW Household Hazardous Waste HTE Hultgren - Tillis Engineers ITP incidental take permit KDA KD Anderson and Associates LDL Larson Davis Laboratories MBTA Migratory Bird Treaty Act MLD Most Likely Descendant MND Mitigated Negative Declaration MTC Metropolitan Transportation Commission NAHC Native American Heritage Commission NCCP Natural Communities Conservation Plan ND Negative Declaration NMFS National Marine Fisheries Service NOA naturally occurring asbestos NOAA National Oceanic Atmospheric Administration NOx Nitrogen Oxides NPDES National Pollutant Discharge Elimination System Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 vi Contents NPPA Native Plant Protection Act NRCS Natural Resources Conservation Services NRHP National Register of Historic Places OAP ozone attainment plans OS Open Space PBC Planned Business Center PCE Primary Constituent Elements PCF Pounds per cubic feet PIF Partners in Flight PJD preliminary jurisdictional determination PM Particulate Matter PM10 Particulate Matter 10 microns in diameter PM2.5 Particulate Matter 2.5 microns in diameter PSF Pounds per square foot RECs Recognized Environmental Concerns ROG Reactive Organic Gases R/W Right-of-Way RWQCB Regional Water Quality Control Board SEL Sound Exposure Level SFBAAB San Francisco Bay Area Air Basin SFBD San Francisco Bay Delta SO2 sulfur dioxide SR State Route SR-4 State Route 4 SWPPP Storm Water Pollution Prevention Plan SWRCB State Water Resources Control Board TAC Toxic Air Contaminants TMP Traffic Management Plan TPY Tons per Year TPH Total Petroleum Hydrocarbons UCMP University of California Museum of Paleontology US United States USACE U.S. Army Corps of Engineers USFWS U.S. Fish and Wildlife Service USGS U.S. Geological Survey UST Underground Storage Tank Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Background 1-1 April 2014 SECTION 1. BACKGROUND 1.1 Summary Project Title: West Antioch Creek Channel Improvement Project Lead Agency Name and Address: City of Antioch 200 ‘H’ Street Antioch, CA 94509 Contact Person and Phone Number: Mindy Gentry, Senior Planner City of Antioch 200 ‘H’ Street Antioch, CA 94509 (925) 779-6133 Project Location: The Project is located within the northern reach of West Antioch Creek in the City of Antioch, Contra Costa County, California. General Plan Designation: Reach A-1 is designated as Open Space Reaches A-2 and B-1are designated Commercial B-2 and B-3 are designated Business Park B-4 is designated as Dow Wetlands Preserve Zoning: Reach A-1 is Zoned U – Unincorporated Area (Not Zoned) Reaches A-2 and B-1 are Zoned Neighborhood/Community Commercial District (C-2) and High Density Residential (R-20) Reaches B-2 and B-3 are Zoned Planned Business Center (PBC) Heavy Industrial District Reach B-4 is Zoned OS – Open Space/Public Use District 1.2 Introduction The City of Antioch Community Development Department Planning Division is the Lead Agency for this Initial Study. The Initial Study has been prepared to identify and assess the anticipated environmental impacts of the West Antioch Creek Channel Improvement Project. This document has been prepared to satisfy the California Environmental Quality Act (CEQA) (Pub. Res. Code, Section 21000 et seq.) and state CEQA Guidelines (14 California Code of Regulations (CCR) 15000 et seq.). CEQA requires that all state and local government agencies consider the environmental consequences of projects over which they have discretionary authority before acting on those projects. A CEQA Initial Study is generally used to determine which CEQA document is appropriate for a project (Negative Declaration [ND], Mitigated Negative Declaration [MND], or Environmental Impact Report [EIR]). The West Antioch Creek Channel Improvement Project (Project) is located in the City of Antioch, Contra Costa County (Figure 1 Vicinity). The Project would reduce flood risk in the Project area by increasing the capacity of the West Antioch Creek channel between West Tenth Street and West Eighth Street and re-establishing the 25-year flood protection capacity of the channel downstream of West Eighth Street to the Burlington Northern Santa Fe (BNSF) railroad trestle. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 1-2 Background 1.3 Surrounding Land Uses/Environmental Setting The West Antioch Creek Channel Improvement Project is located in the northwestern portion of the City of Antioch, in northern Contra Costa County California, approximately one-third of a mile from the San Joaquin River/Sacramento-San Joaquin Delta. The City of Antioch is located approximately 36 miles northeast of the City of San Francisco and 42 miles southwest of the City of Sacramento (Figure 1. Vicinity). Land uses adjacent to the Project site include multi-family residential buildings, the Contra Costa County fairgrounds, a commercial building with automotive parts, repair, and maintenance shops, the Antioch Historical Society Museum, and commercial and industrial properties (Figure 2a. Project Location/Surrounding Land Uses). The Project site is an urban creek channel between West Tenth Street and approximately 200 feet north of the BNSF railroad trestle including adjacent vacant parcels for staging/stockpiling and access (Figure 2b. Staging/Stockpiling Areas and Access Points). The creek channel runs under West Tenth Street at the southern boundary, under a parking lot, then opens to a concrete lined channel, and then to an earthen channel that extends to Fourth Street. From Fourth Street a concrete-lined segment extends approximately 550 feet before transitioning to an earthen channel that continues north beyond the BNSF railroad trestle. Surrounding land uses by reach are described below, from south to north:  Reach A-1. This reach is located on the Contra Costa County Fairground site and under West Tenth Street. Adjacent uses include a commercial building with automotive maintenance and repair, auto glass replacement, car stereo installation, and remote controlled hobby vehicle sales (former Al Eames Ford dealership) to the north, additional Fairground lands to the south and west, and a strip of land with utility lines to the east.  Reach A-2. This reach contains privately owned land at 1400 West Tenth Street, and land owned by the Contra Costa County Flood Control District. To the north of the reach is additional creek channel, to the east is apartments that front O Street, privately owned vacant land, O Street and residences, to the west is the former Al Eames Ford dealership, and to the south is the Contra Costa County Fairgrounds.  Reach B-1. This reach is an earthen channel that runs from near Eighth Street to Fourth Street. To the north of the reach is Fourth Street/Auto Center Drive, to the west is Golf & Games Family Fun Center, Sixth Street, privately owned vacant property, and industrial buildings, and to the east is residences, businesses, and industrial businesses.  Reach B-2. This reach is a concrete-lined channel that runs from Fourth Street to just northeast of the Antioch Historical Society Museum. To the west of the reach is the Antioch Historical Society Museum, to the south is Fourth Street/Auto Center Drive, and to the east are warehouses, industrial, and manufacturing space/buildings.  Reach B-3. This reach is an earthen channel that runs from the Antioch Historical Society Museum to just south of the BNSF railroad trestle. To the north is the BNSF railroad trestle, to the west is the Bond Manufacturing facility, to the east is warehouses, industrial, and manufacturing space/buildings, and to the south is the Antioch Historical Society Museum.  Reach B-4. This reach runs from the southern limit of the BNSF railroad trestle to approximately 200 feet north of the trestle. 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Vicinity West Antioch Creek Channel Improvement ProjectLocation: N:\2012\2012-140 West Antioch Creek\MAPS\Site_Vicinity\WestAntiochCreek_Vicinity.mxd (AA)-JSwager 10/24/2013 Map Date: 10/24/2013Service Layer Credits: Sources: USGS, ESRI, TANA, AND P a c i f i c O c e a n !"c$ !"^$ !"^$ !"a$!"b$ !"`$ !"_$ Reno Fresno Santa AnaLos Angeles Oakland San Jose San Diego Las Vegas Long Beach Bakersfield Sacramento Carson City San Francisco CACA NVNV UTUT AZAZ OROR IDID Size of printing extent and margins differs with printer settings, please adjust margins if necessary.MAP REQUIRES A MAPLEX LICENSENOTE: This map is set up in NAD 1983 StatePlane California III FIPS 0403 Feet.Please Change to Define Your Local State Plane or UTM Coordinate System. Project Location I 0 5 10 Miles Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 1-4 Background THIS PAGE INTENTIONALLY LEFT BLANK Bond Manufacturing Warehouse Industrial andManufacturing Space Dow Wetlands Preserve Antioch Marina !Antioch Historical Society Building ! Golf N Games Family Fun Center !Holiday Lodge Motel ! Auto Repair !Apartment Buildings CountyYard!Shelter !Restaurant/Casino BNSF Railroad Commercial Industrial !First Baptist Headstart !Antioch Veterinary Hospital Vacant Industrial Building Residential Contra Costa County Fairgrounds ! Commercial Building/Automotive Uses Residential Residential Residential ASTER D R ASTER D R N STN STFIFTH STFIFTH ST FOURTH STFOURTH ST POPPY WAYPOPPY WAYW TEN T H S T W TEN T H S T O STO STTULIP DRTULIP DRSIXTH STSIXTH ST SEVENTH STSEVENTH ST EIGHTH STEIGHTH ST NINTH STNINTH STSOMERSVILLE RDSOMERSVILLE RDSIXTH STSIXTH ST Figure 2a. Project Location/Surrounding Land Uses Map Date: 4/17/2014 Photo Source: USGS 2011 Base Data: RMC West Antioch Creek Channel Improvement ProjectLocation: N:\2012\2012-140 West Antioch Creek\MAPS\Site_Vicinity\WestAntiochCreek_Location_v1b.mxd (JDS)-JSwager 4/17/2014 Legend Capacity Improvements Desilting Potential Staging or Stockpiling Areas I 0 400 Scale in Feet Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 1-6 Background THIS PAGE INTENTIONALLY LEFT BLANK Reach B-1 Reach B-2 Reach A-1 Reach A-2 Reach B-4 Reach B-3Reach B-3 Reach B-2 Reach B-1 Reach A-2 Reach A-1 CRESTVIEW DRCRESTVIEW DRN STN STFIFTH STFIFTH ST FOURTH STFOURTH ST POPPY WAYPOPPY WAYW TE N T H S T W TE N T H S T ASTER D R ASTER D R O STO STTULIP DRTULIP DRSIXTH STSIXTH ST SEVENTH STSEVENTH ST EIGHTH STEIGHTH ST NINTH STNINTH STSOMERSVILLE RDSOMERSVILLE RDSIXTH STSIXTH ST Figure 2b. Staging/Stockpiling Areas and Access Points Map Date: 10/24/2013 Photo Source: USGS 2011 Base Data: RMC West Antioch Creek Channel Improvement ProjectLocation: N:\2012\2012-140 West Antioch Creek\MAPS\Site_Vicinity\WestAntiochCreek_Location_v1.mxd (JDS)-JSwager 10/24/2013 Legend Capacity Improvements Desilting Potential Staging or Stockpiling Areas Proposed Access I 0 400 Scale in Feet Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 1-8 Background THIS PAGE INTENTIONALLY LEFT BLANK Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Project Description 2-9 April 2014 SECTION 2. PROJECT DESCRIPTION 2.1 Project Background In 1993, the Contra Costa County Flood Control District completed channel improvements for West Antioch Creek (1993 Project). The 1993 Project improved the conveyance capacity from approximately 200 feet north of the BNSF railroad crossing upstream (south) to around West Eighth Street to convey up to the 25-year storm event flows. The 25-year level of protection was the design conveyance criterion for the 1993 Project. The available funding at the time did not allow channel improvements to extend upstream of West Eighth Street. As a result, a 650-foot segment of undersized channel exists between the southern limits of the 1993 Project to the earthen trapezoidal channel on the Contra Costa County Fairgrounds property south of West Tenth Street (Figure 2a. Project Location/Surrounding Land Uses). The 650-foot segment of channel described above transitions from an earthen trapezoidal channel near the Contra Costa County Fairgrounds to structural plate steel arch culverts under West Tenth Street, then to a 20- to 25-foot wide concrete ditch in the reach of the creek between West Tenth Street and West Eighth Street. This segment of the channel has the capacity to convey runoff from an approximately one- to two-year return period storm event. Furthermore, the 1993 Project has significantly diminished capacity due to sediment deposition. As a result, flooding can occur several times a year adjacent to West Antioch Creek near the intersection of West Tenth Street and O Street (Photo 1). Flooding in this area is a public safety concern and results in property and economic damage. Frequent flooding results in numerous road closures several times a year. Road closures and flood damage result in the loss of commercial business, impacts adjacent residential properties, and the City of Antioch’s Public Works maintenance yard. Furthermore, the effort by the City to enforce road closures, fight floodwaters, and to clean up debris after flooding recedes is a drain on the City’s resources and budget. The Project was developed to increase the capacity of the West Antioch Creek channel to reduce flooding in the area and the impacts that result from it. Photo 1. Flooding at the intersection of O and West Tenth Streets in 2006. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 2-10 Project Description Photo 2. Existing culverts under West Tenth Street. 2.2 Project Characteristics and Alternatives The Project is intended to reduce flooding in the Project area by designing for a 25-year level of protection. Currently within the Project area, the West Antioch Creek channel transitions from structural plate steel arch culverts under West Tenth street (Photo 2), to a concrete-lined ditch covered by wooden planking under a parking lot at 1400 West Tenth Street (Photo 3), to an open concrete-lined ditch adjacent to a carport associated with a neighboring apartment building, to an earthen channel that extends to Fourth Street. From Fourth Street a concrete-lined segment extends approximately 550 feet before transitioning to an earthen channel that continues north beyond the BNSF railroad trestle. The Project would alter two adjacent reaches of the channel. Project work in Reach A (conveyance improvements) would increase the capacity of the conveyance system between West Tenth Street and West Eighth Street. Project work in Reach B (desilting) would desilt the channel from around West Eighth Street to approximately 200 feet north of the BNSF railroad trestle to restore design capacity (Figure 2b. Staging/Stockpiling Areas and Access Points). Either reach can be improved independently from the other or concurrently, but work in both reaches must be completed to realize improved levels of flood protection. Additional photos of each reach can be found in section 4.1 Aesthetics. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Project Description 2-11 April 2014 Photo 3. Creek channel under wooden planking (north side of West Tenth and O streets) and apartment building on east side of creek channel. Reach A – Conveyance Improvements Five alternatives were proposed for Reach A. All alternatives would use a minimum of four pre-cast concrete box culverts measuring 14 feet wide and 7 feet high under West Tenth Street. However, the alternatives differ in the conveyance configuration from West Tenth Street to near West Eighth Street. Table 1 lists the components of each alternative. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 2-12 Project Description Table 1. Alternatives for Reach A Alternative Pre-Cast Box Culvert Channel Type Property Acquisition/ Easement Requirements Alternative 1 (Figure 3a) Culvert would extend a length of approximately 300 feet from West Tenth Street north to West Ninth Street. New re-aligned earthen channel from West Ninth Street north to West Eighth Street. City would need to acquire permanent and/or temporary construction easements as well as acquire a portion of privately-owned parcels at 1400 West Tenth Street (a commercial building with automotive uses) and at 804 O Street (occupied by an apartment complex), which adjoin the creek to the west and east, respectively. Removal and relocation of the apartment building’s carport would also be required. Alternative 2 (Figure 3b) Culvert would extend a length of approximately 700 feet from West Tenth Street north to about West Eighth Street. No earthen channel would be included. City would need to acquire permanent and/or temporary construction easements from 1400 West Tenth Street . Alternative 3 (Figure 3c) Culvert would extend a length of approximately 100 feet across West Tenth Street. New re-aligned earthen channel from West Tenth Street north to West Eighth Street. City would need to acquire permanent and/or temporary construction easements as well as acquire a portion of privately-owned parcels at 1400 West Tenth Street and at 804 O Street, which adjoin the creek to the west and east, respectively. Removal and relocation of the apartment building’s carport would also be required. Alternative 4 (Figure 3d) Culvert would extend for a length of approximately 100 feet across West Tenth Street. New re-aligned earthen channel from West Tenth Street to West Eighth Street. City would need to acquire all or most of the property at 1400 West Tenth Street and demolish all existing buildings. Alternative 5 (Figure 3e) Culvert would extend for a length of approximately 100 feet across West Tenth Street. New re-aligned earthen channel from West Tenth Street to West Eighth Street. City would need to acquire permanent and/or temporary construction easements as well as acquire a portion of the privately-owned parcels at 1400 West Tenth Street and at 804 O Street, which adjoin the creek to the west and east, respectively. Relocation of the apartment building’s carport and demolition of the service bay building on the western edge of 1400 West Tenth Street would also be required. Alternative Selection. The City evaluated all of the alternatives for Reach A based on the following criteria: hydraulics, property acquisition feasibility, permanent property impacts, change in channel impacts, and permitting feasibility to determine the preferred alternative. Table 2 shows the comparison of all alternatives. Preferred Alternative. The City’s preferred alternative is Alternative 3 because it reduces flooding in the area and has the least impacts to the channel. Alternative 3 provides for a feasible regulatory permitting process, minimizes impacts to adjacent properties, and is the most cost-effective alternative. Therefore, the City has determined that Alternative 3 is the preferred alternative for improvements to Reach A. This Initial Study evaluates the environmental impacts of implementing Alternative 3 but also evaluates the environmental impacts of the other alternatives. The analysis of the other alternatives includes sufficient information to allow meaningful evaluation and comparison with Alternative 3. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Project Description 2-13 April 2014 Table 2. Alternative Comparison Matrix Criteria Alternative 1: Alternative 2: Alternative 3: Alternative 4: Alternative 5: Hydraulics Effective for 25‐ year flows. 100‐ year flow conveyance capacity through culvert, limited by upstream and downstream channel capacity. Effective for 25‐ year flows. 100‐ year flow conveyance capacity through culvert, limited by upstream and downstream channel capacity. Effective for 25‐ year flows. Effective for 25‐ year flows. Slight improvement over Alternative 3 due to elimination of bottleneck between 1400 West Tenth Street and 804 O Street. Effective for 25‐ year flows. Slight improvement over Alternative 3 due to elimination of bottleneck between 1400 West Tenth Street and804 O Street. Property Acquisition Feasibility Moderate to least difficult Least difficult Moderate difficulty Most difficult Moderate difficulty 1400 West Tenth Street: Permanent Easement (for culvert): 0.3 acre Acquire (for earthen channel): 0.35 acre 1400 West Tenth Street: Permanent Easement (for culvert): 0.55 acre 1400 West Tenth Street: Acquire: 0.8 acre 1400 West Tenth Street: Acquisition of 1400 West Tenth is not considered feasible by City/County (purchase: 1.3 acres). 1400 West Tenth Street: Acquire: 0.85 acre 804 O Street: Acquire/Swap (for adjacent County land): 0.02 acre 804 O Street: None 804 O Street: Acquire/Swap: 0.02 acres 804O Street: None 804 O Street: Acquire/Swap: 0.02 acres Permanent Property Impacts 1400 West Tenth Street: ~0.05 acre of paved area at edge of property would be part of earthen channel. Parking on top of the culvert would remain available. Northern section of parcel, including 0.2 acre of parking and access to service bays would be part of earthen channel, which would restrict access to the service bay buildings. 1400 West Tenth Street: No permanent impacts (parking on top of the culvert would remain available). 1400 West Tenth Street: 0.5 acre of paved area currently used for parking would be part of earthen channel. Northern section of parcel, including 0.2 acre of parking and access to service bays would be part of earthen channel, which would restrict access to the service bay buildings. 1400 West Tenth Street: Current buildings in the path of the channel would need to be demolished. Construction cost includes demolition and $62k for asbestos and lead abatement. 1400 West Tenth Street: 0.5 acre of paved area currently used for parking would be part of earthen channel. Northern section of parcel, including 0.2 acre of parking and access to service bay building would be part of earthen channel. Service bay building on western portion of parcel would be demolished and paved to increase on‐property parking. 804 O Street: 40 linear feet of parking structure would need to be relocated. 804 O Street: No impact 804 O Street: 40 linear feet of parking structure would need to be relocated. 804 O Street: No impact 804 O Street: 40 linear feet of parking structure would need to be relocated. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 2-14 Project Description Criteria Alternative 1: Alternative 2: Alternative 3: Alternative 4: Alternative 5: Channel Impacts Remove 400 feet of open, lined, channel (~0.25 acre), to be replaced by wider earthen channel (~0.85 acres earthen channel area). Remove 400 feet of open, lined, channel (~0.25 acre), to be replaced by culvert and transition structure. Replace 400 feet of open, lined, channel (~0.25 acre) with wider earthen channel and add 200 feet of open earthen channel (total earthen channel area ~1.3 acres). Replaces 400 feet of open, lined, channel (~0.25 acre) with wider earthen channel and add 200 feet of open earthen channel (total earthen channel area ~1.3 acres). Replace 400 feet of open, lined, channel (~0.25 acre) with wider earthen channel and add 200 feet of open earthen channel (total earthen channel area ~1.3 acres). Permitting Feasibility Moderate Difficulty Most Difficult Least Difficult Least Difficult Least Difficult *Phase 1 Environmental Site Assessment (ESA) results indicated no contaminated soil/groundwater that would require special handling; it has been assumed that 10% of soils would require special handling. This assumption will be verified in the Phase 2 ESA. Source: RMC 2013 Reach B – Desilting Project work in Reach B (desilting) would include the removal of accumulated sediment in the earthen channel that extends to Fourth Street. From Fourth Street a concrete-lined segment extends approximately 550 feet before transitioning to an earthen channel that continues approximately 200 feet north beyond the BNSF railroad trestle to restore design capacity (Figure 4. Desilting Extent and Sections). Approximately 3,000 linear feet of channel would be desilted. Approximately 30,000 cubic yards of sediment accumulated since the completion of the 1993 Project would be removed from the channel to re-establish the 1993 Project design contours thus restoring the design capacity of the channel to convey the 25-year storm event flows. Project Implementation The Project is the implementation of conveyance improvements in Reach A and the desilting of Reach B. These channel reaches have been further divided into sub-reaches based on anticipated construction techniques (Figure 2b. Staging/Stockpiling Areas and Access Points). Construction Schedule Construction would occur between 7:00 a.m. and 6:00 p.m. Monday through Friday and 8:00 a.m. to 5:00 p.m. on Saturdays. No construction would be allowed on Sundays and public holidays. The construction season would extend from March 15 to October 15 which is based on minimizing potential impacts to delta smelt. It is anticipated that the Project could be completed in one construction season. If work cannot be completed in one construction season, then the City would request an extension from the USFWS and other regulatory agencies with similar restrictions (Nomad 2013a). Reach A – Implementation of Conveyance Improvements - Alternative 3 Improvements within Sub-Reaches A-1 and A-2 would have creek water bypass pumping implemented from a cofferdam at the upstream end of Reach A1, and potentially pumped to the existing storm drain outfall at the southwest corner of the Antioch Marina, approximately 1,000 feet east of the BNSF railroad trestle. Other bypass methods and locations may be considered. Bypass Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Project Description 2-15 April 2014 pumping or gravity conveyance could also be implemented at any drainage inlets to the creek. For operations and maintenance, staff gages would be installed at the entrance and exit of the Tenth Street culvert, and every 100 feet in the earthen channel bed. The gages would be embedded in the bank or pole mounted in the drainage channel. Sub-Reach A-1 (culvert construction across West Tenth Street) Access to the channel during construction of Sub-Reach A-1 would be from 1400 West Tenth Street (west side of the channel and north of West Tenth Street) and through the Contra Costa County Fairgrounds (west of the channel, south of West Tenth Street). To construct the culvert across West Tenth Street a cofferdam, sump, and bypass pipe would be installed upstream of the Project. During culvert construction, water flow from the channel would be piped downstream to West Eighth Street or other appropriate outfall location, through the bypass pipe. West Tenth Street would be subject to temporary access restrictions and/or closure to traffic during construction of the culvert across West Tenth Street, from approximately 200 feet west of West Antioch Creek to O Street. The existing roadway would then be demolished and the existing steel arch culverts would be removed and replaced with four side-by-side pre-cast concrete box culverts. Once the culverts are constructed the creek bypass pipe would be relocated through the new pre- cast concrete box culverts. An eight-inch sewer pipe and water connection to the Contra Costa County Fairgrounds would be relocated as a result of construction. A cast-in-place culvert inlet structure would be constructed just south of West Tenth Street. The pre-cast concrete box culverts would then be back-filled and West Tenth Street would be reconstructed, repaved, and reopened for traffic. Sub-Reach A-2 (earthen channel construction from north side of West Tenth Street to West Eighth Street) The bypass piping of creek flows from the construction of Sub-Reach A-1 would continue through the construction of Sub-Reach A-2. Access to the channel during construction of Sub-Reach A-2 would be from 1400 West Tenth Street (west side of the channel), from Reach B-1 via West Sixth Street (east of channel), from O Street (vacant lot on the east of the channel) and from the south from within the channel. The existing wooden planking, concrete channel, and paved parking at 1400 West Tenth Street would be demolished and removed. Soil would be excavated and a cast-in-place concrete culvert discharge structure would be constructed at the end of the pre-cast concrete box culverts on the north side of West Tenth Street. Excavation and shaping of the earthen channel would then occur from the discharge concrete structure downstream to West Eighth Street. A soldier pile retaining wall would be constructed along the east side of the channel adjacent to O Street. Riprap erosion barriers would be installed along the top of bank and slopes, and the channel bottom would be revegetated. Reach B – Implementation of Desilting Sub-Reaches B-1, B-2, B-3, and B-4 could be excavated in any order, or concurrently. Excavation could occur concurrently with or in sequence with construction of Reach A. Creek water bypass pumping would be implemented from the cofferdam at the upstream end of Reach A, and potentially pumped to the existing storm drain outfall at the southwest corner of the Antioch Marina, approximately 1,000 feet east of the BNSF railroad trestle. Other bypass methods and locations may be considered. Bypass pumping or gravity conveyance would also be implemented at any drainage Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 2-16 Project Description inlets to the creek. For operations and maintenance, staff gages would be installed at the entrance and exit of the Fourth Street culvert, within the concrete U-frame channel downstream of the Fourth Street bridge and every 100 feet in the channel bed. The gages would be embedded in the bank or pole mounted in the drainage channel. Sub-Reach B-1 (West Eighth Street to West Fourth Street) Access to the channel during the desilting of Sub-Reach B-1 would be from West Sixth Street at O Street and West Fourth Street. Mudcats and excavators would be used to remove accumulated silt from the channel to re-establish the 1993 Project design contours. Top of bank areas, slopes, and the channel bottom would be revegetated. Sub-Reach B-2 (Existing Concrete Channel Reach, West Fourth Street to approximately 400 feet north) Access to the channel during the desilting of Sub-Reach B-2 would be through 1500 West Fourth Street (Antioch Historical Society) and 1700 West Fourth Street (north of West Fourth Street, west side of channel), and 1400 West Fourth Street (north of West Fourth Street, east side of channel). A silt/sediment barrier and cofferdam would be constructed at the BNSF railroad trestle to isolate the work area from the marsh to the north. The work area would then be dewatered by digging a sump and installing dewatering pumps and a conveyance pipeline to the Antioch Marina storm drain outfall or other appropriate outfall location. Mudcats and excavators would then be used to remove accumulated silt and decomposing vegetative material from the concrete lined channel. Sub-Reach B-3 (Approximately 400 feet north of West Fourth Street to BNSF Railroad Trestle) Access to the channel during the desilting of Sub-Reach B-3 would also be from the same properties identified for Sub-Reach B-2. Mudcats and excavators would then be used to remove accumulated silt and decomposing vegetative material from the channel to re-establish the 1993 Project design contours. Sub-Reach B-4 (BNSF Railroad Trestle to 200 feet north) Access to the channel during the desilting of Sub-Reach B-4 would be from the north of the BNSF railroad tracks, using the BNSF right-of-way (R/W) between Sub-Reach B-4 and L Street east of the channel. A silt/sediment barrier and cofferdam would be installed between the work area and the marsh to the north. The work area would then be dewatered by digging a sump and installing dewatering pumps and a conveyance pipeline to the Antioch Marina storm drain outfall or other appropriate outfall. Mudcats and excavators would then be used to remove accumulated sediment and decaying vegetative material from the channel to re-establish the 1993 Project design contours. Hauling and Disposal Soils would be tested and depending on the characterization of the material, disposed of at an appropriate facility. Clean soils would be disposed of at Jersey Island, the Ironhouse Sanitary District treatment plant site, Keller Canyon Landfill, or suitable nearby facilities. In addition to the soils, the Project would remove approximately 8,000 cubic yards of decomposed marsh vegetation and sediment, which would be disposed of at Jersey Island, Keller Canyon Landfill, or a suitable nearby Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Project Description 2-17 April 2014 composting facility. Wet or contaminated soils, vegetation, and sediment would be stockpiled and aerated (bulldozers would turn over and aerate the material) in the proposed staging or stockpiling areas, as shown in Figure 2b, adjacent to the Project site to remove moisture to a point suitable for hauling off to a disposal site. Contaminated material would be hauled away for disposal at a suitable licensed facility. Front end loaders would be used to handle and load the material into double transfer tractor-trailer rigs for hauling off to a disposal site. Access and Easement Requirements Construction of the Project would require access to and use of several parcels in the vicinity of the Project area. The required permanent easements, R/W, and temporary construction easements are described in Table 3 and shown in Figure 5. Table 3. Parcel Information and Easement Requirements Parcel Information and Easement Requirements APN/Location Permanent Easement or Right-of-Way (R/W) Acquisition Temporary Construction Easement 067-010-003 (Government- owned) Contra Costa County Fairgrounds 1201 West Tenth Street Southwest corner of O Street and West Tenth Street Permanent Easement – Required for construction of culvert transition structure and channel transition to upstream creek. Required for ongoing operations and maintenance. Required for equipment and material hauling access from West Tenth Street. 074-130-060 and 074-130-061 (Privately-owned) Commercial building 1400 West Tenth Street Northwest corner of O Street and West Tenth Street. Permanent Easement – Required for construction of culvert, culvert transition structure, and open channel. Required for ongoing operations and maintenance. Required for equipment and material access to permanent easement. 074-130-050 (County-owned) O Street between 074-130-060 and apartment buildings at 804 O Street (074-130-056, 057, 058) Permanent Easement – Required for construction of culvert, culvert transition structure, open channel, and for relocating the apartment complex carport and parking area. Required for ongoing operations and maintenance. R/W – Portion of the parcel would be conveyed to apartment complex owner for carport and parking area. Remainder would be R/W for West Antioch Creek. Not Applicable 074-130-056, 057, -058 (Privately-owned) Apartments 804 O Street O Street north of Contra Costa County Parcel (074-130-050) Permanent Easement – Required for open channel construction. Required for ongoing operations and maintenance. Required for construction of channel, removal of carport and restoration of parking area. 074-130-XXX (City of Antioch) Creek Channel West Antioch Creek from West Eighth Street to West Fourth Street. Permanent Easement – Required for construction of open channel and desilting of existing improved channel. Not Applicable 074-130-076 (Privately-owned) Vacant parcel north of motel and adjoins west side of channel. Not Applicable Required for excavated material stockpiling, aeration/drying, off- haul operations, and spoiling. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 2-18 Project Description Parcel Information and Easement Requirements APN/Location Permanent Easement or Right-of-Way (R/W) Acquisition Temporary Construction Easement 074-130-064 (Privately-owned) Vacant parcel north of motel and adjoins west side of channel. Not Applicable Required for excavated material stockpiling, aeration/drying, off- haul operations, and spoiling. 074-130-081 (Eastern Contra Costa Transit - Public) Vacant parcel east of Somersville Road/Auto Center Drive and south of West Sixth Street. Not Applicable Required for excavated material stockpiling, aeration/drying, off- haul operations, and spoiling. 074-040-025 (Privately owned) Large parcel north of West Fourth Street and south BNSF encompassing existing West Antioch Creek and RV storage facility. Permanent Easement – Required for desilting of West Antioch Creek north of West Fourth Street and south of BNSF and for ongoing operations and maintenance. Required for equipment and material hauling access to east side of West Antioch Creek from West Fourth Street. 074-040-036 (Privately-owned) Vacant parcel northeast of 074- 040-025 (RV storage facility). Not Applicable Required for excavated material stockpiling, aeration/drying, and off-haul operations. 074-040-044 (City-owned) City parcel along south side of BNSF. Permanent Easement – Required for desilting of West Antioch Creek north of West Fourth Street and south of BNSF and for ongoing operations and maintenance. Not Applicable 074-040-046 (Privately-owned) Antioch Historical Society Not Applicable Required for equipment and material hauling access to the west side of West Antioch Creek from West Fourth Street. 074-040-047 (Privately-owned) Bond Manufacturing Adjacent to and west of West Antioch Creek. Not Applicable Required for equipment and material hauling access to west side of West Antioch Creek from West Fourth Street. 074-040-XXX and 066-081-XXX BNSF Railroad R/W North end of Project area, aligned east & west. Permanent Easement – Required for ongoing maintenance and operations. Encroachment permit required for equipment and material hauling access to West Antioch Creek north of BNSF. 074-030-003 (Privately-owned) North of BNSF and West Antioch Marina Permanent Easement – Required for desilting of West Antioch Creek north of BNSF and for ongoing operations and maintenance. Required for desilting activities north of BNSF. Figure 3a. Alternative 1 - Hybrid Option West Antioch Creek Channel Improvement Project Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 2-20 Project Description THIS PAGE INTENTIONALLY LEFT BLANK Figure 3b. Alternative 2 - Maximum Culvert Option West Antioch Creek Channel Improvement Project Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 2-22 Project Description THIS PAGE INTENTIONALLY LEFT BLANK Figure 3c. Alternative 3 - Minimum Culvert Option West Antioch Creek Channel Improvement Project Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 2-24 Project Description THIS PAGE INTENTIONALLY LEFT BLANK Figure 3d. Alternative 4 - Full Parcel Acquisition West Antioch Creek Channel Improvement Project Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 2-26 Project Description THIS PAGE INTENTIONALLY LEFT BLANK Figure 3e. Alternative 5 - Alternate Minimum Culvert Option West Antioch Creek Channel Improvement Project Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 2-28 Project Description THIS PAGE INTENTIONALLY LEFT BLANK Figure 4. Desilting Extent and Sections West Antioch Creek Channel Improvement Project Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 2-30 Project Description THIS PAGE INTENTIONALLY LEFT BLANK Figure 5. Potentially Impacted Parcels West Antioch Creek Channel Improvement Project Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 2-32 Project Description THIS PAGE INTENTIONALLY LEFT BLANK Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Project Description 2-33 April 2014 2.3 Operations and Maintenance In the short term, the construction contractor, after initial hydroseeding, would be responsible for maintaining seeded areas until native grasses are established and would be required to minimize subsequent watering to prevent erosion or slope sloughing. Upon completion of the installation of the new culverts, removal of accumulated sediment in Reach B, and revegetation, the City would be required to conduct routine monitoring and maintenance to preserve the 25-year flood capacity. Monitoring Monitoring activities would include:  The channel sediment and vegetation monitoring would consist of a minimum of once-per-year inspections of staff gages in the earthen and concrete channels to determine accumulation of sediment levels;  Inspections of channel banks may occur after every significant storm event for scour/sediment removal;  Inspections of the channel bank grass cover may occur every three months for height of grass and erosion/bare areas;  Inspections of the channel bed grasses are to occur at least once every year for height;  Inspections of channel bed and banks at least once per year for presence of shrubs; and  Inspections of the channel for trees, cattails, and other emergent vegetation would occur at least once per year.  Inspection of maintenance roads prior to the wet season, after significant storm events, and following the wet season to identify damage or debris accumulation, and inspection of drainage outlets, outlet flap gates, and the channel for debris accumulation and erosion/scour following storm events would occur. Sediment Maintenance Sediment maintenance work would consist of sediment removal by equipment or by hand and would occur in maximum intervals of every five years and when sediment accumulation exceeds 2 feet. The sediment removal action would return the channel to design conditions. Excavation of sediment with equipment would be conducted from maintenance roads or benches to the extent possible. Sediment would be relocated to upland locations unless otherwise permitted. When sediment removal results in removal of bank stabilizing vegetation, seeding and erosion control to re-establish bank vegetation would be installed. If channel banks endure scour or erosion, maintenance would be conducted to protect the integrity of the bank. Bank stabilization techniques would include erosion control blankets, localized placement of soil, filter fabric, riprap and other methods and natural materials available to the City at the time. Erosion control materials would not include materials made of plastic or synthetic non-filament netting for fish and wildlife protection. Vegetation Maintenance Vegetation maintenance work would consist of mowing when grass height exceeds 24 inches, grass re-establishment with native grasses with hydroseeding or by hand after the first significant rain Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 2-34 Project Description event of the water year, removal shrubs and trees during the dry season, and removal/cutting of reeds when 24-inch height is exceeded. Vegetation maintenance would be conducted with tractor mowers, hand equipment and tools, and chemical treatment as necessary using approved commercially available vegetation abatement products. Structure Maintenance Structure maintenance work would consist of clearing debris, sediment, and vegetation from maintenance roads, drainage channel, drainage outlets, and flap gates. Maintenance roads would require re-grading and replenishing gravel surfaces. Flap gates would be require to be greased at least once a year and repaired as necessary. Structure maintenance would be conducted using hand tools and mechanical equipment, herbicides as necessary using approved commercially available weed abatement products, and erosion/scour holes at outlets may be filled with soil, filter fabric, and riprap to re-establish scour protection below the outlet. 2.4 Regulatory Requirements, Permits, and Approvals The City of Antioch is working in concert with Contra Costa County Flood Control District; however, the City of Antioch is the approval authority for the Project. Additional subsequent approvals and other permits that may be required from local, regional, state, and federal agencies including, but are not limited to:  City of Antioch Building Permit and Encroachment Permit;  Stormwater Construction General Permit (including the development and implementation of a Storm Water Pollution Prevention Plan) from the State Water Resources Control Board;  Clean Water Act, Section 401 Water Quality Certification from the Central Valley Regional Water Quality Control Board;  Clean Water Act, Section 404 Individual Permit from the U.S. Army Corps of Engineers- Sacramento District;  California Fish and Game Code, Section 1602 Streambed Alteration Agreement from California Department of Fish and Wildlife; and  Federal Endangered Species Act, Section 7, Biological Opinion from the U.S. Fish and Wildlife Service and/or National Marine Fisheries Service and/or California Endangered Species Act, Section 2081, Incidental Take Permit (ITP) from the California Department of Wildlife. The City would consult with the Contra Costa County Flood Control District and East Contra Costa County Habitat Conservancy to determine if Reach A of the Project can receive HCP/NCCP permit coverage. Reach A of the Project area is located largely within the East Contra Costa County Habitat Conservation Plan and Natural Community Conservation Plan (HCP/NCCP) inventory area. Although the City of Antioch is not a permittee of the HCP/NCCP, the Contra Costa County Flood Control District, an HCP/NCCP permittee, has jurisdiction over drainages that span city and county boundaries including a portion of West Antioch Creek. The Reach B portion (desilting) of the Project is located outside of the HCP/NCPP inventory area and would require separate consultation with regulatory agencies. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Factors Potentially Affected 3-1 April 2014 SECTION 3. ENVIRONMENTAL FACTORS POTENTIALLY AFFECTED AND DETERMINATION Environmental Factors Potentially Affected: The environmental factors checked below would be potentially affected by this Project, involving at least one impact that is a “Potentially Significant Impact” as indicated by the checklist on the following pages. Aesthetics Greenhouse Gas Emissions Population and Housing Agriculture and Forestry Resources Hazards/Hazardous Materials Public Services Air Quality Hydrology/Water Quality Recreation Biological Resources Land Use and Planning Transportation/Circulation Cultural Resources Mineral Resources Utilities and Service Systems Geology and Soils Noise Mandatory Findings of Significance Determination On the basis of this initial evaluation: I find that the Project COULD NOT have a significant effect on the environment, and a NEGATIVE DECLARATION will be prepared. I find that although the Project could have a significant effect on the environment, there will not be a significant effect in this case because revisions in the Project have been made by or agreed to by the Project proponent. A MITIGATED NEGATIVE DECLARATION will be prepared. I find that the Project MAY have a significant effect on the environment, and an ENVIRONMENTAL IMPACT REPORT is required. I find that the Project MAY have a “potentially significant impact” or “potentially significant unless mitigated” impact on the environment but at least one effect 1) has been adequately analyzed in an earlier document pursuant to applicable legal standards, and 2) has been addressed by mitigation measures based on the earlier analysis as described on attached sheets. An ENVIRONMENTAL IMPACT REPORT is required, but it must analyze only the effects that remain to be addressed. I find that although the Project could have a significant effect on the environment, because all potentially significant effects (a) have been analyzed adequately in an earlier EIR or NEGATIVE DECLARATION pursuant to applicable standards, and (b) have been avoided or mitigated pursuant to that earlier EIR or NEGATIVE DECLARATION, including revisions or mitigation measures that are imposed upon the Project, nothing further is required. Mindy Gentry Date Senior Planner Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 3-2 Environmental Factors Potentially Affected THIS PAGE INTENTIONALLY LEFT BLANK Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-1 April 2014 SECTION 4. ENVIRONMENTAL CHECKLIST AND DISCUSSION Reach A has a Preferred Alternative (Alternative 3) and four other alternatives for increasing the capacity of the creek channel. The details of the alternatives for Reach A can be found in Table 1 and the comparative differences can be found in Table 2, both in Section 2, Project Description. The Preferred Alternative is analyzed in this section and the other alternatives are compared to the Preferred Alternative. For each impact checklist item, there is a statement as to the similarity or differences of the Preferred Alternative compared to the other alternatives. 4.1 Aesthetics 4.1.1 Environmental Setting Regional Setting The City of Antioch is located along the bank of the San Joaquin River/Sacramento-San Joaquin Delta on the north side with a backdrop of the foothills of Mt. Diablo to the south, the City of Pittsburg to the west, and the City of Oakley to the east. State Route (SR) 4 and the BNSF Railroad both run east to west bisecting the City. Antioch currently has a population of more than 100,000 people. Visual Setting The Project would be in the northwestern portion of the City of Antioch in a residential, commercial, and industrial area. West Antioch Creek is an urban creek channel that flows northward into the San Joaquin River/Sacramento-San Joaquin Delta. The Project area starts at the Contra Costa County Fairgrounds at the south end, goes northward or downstream towards the BNSF Railroad at the north end, and ends in the Dow Wetlands Preserve. SR-4 is 0.75 mile to the south, and Tenth Street, which becomes the Pittsburg-Antioch Highway west of Verne Roberts Circle, runs through the south end of the Project site just north of the Fairgrounds. The parcels immediately adjacent to the Project consist of vacant land, apartment buildings, the Antioch Historical Society Museum, a large parking lot, commercial uses, and large industrial buildings (Figure 2a. Project Location/Surrounding Land Uses). Visual Character of the Project Site The Project area including access, staging, stockpiling, and construction, encompasses approximately 26 acres and is intended to reduce frequent flooding. Reach A-1 of the Project is the portion of West Antioch Creek channel that transitions from an earthen channel at the Contra Costa County Fairgrounds, to two structural plate steel arch culverts under West Tenth Street (Photo 4). Reach A-1 transitions to Reach A-2 in a concrete-lined ditch covered by wooden planking under a parking lot at 1400 West Tenth Street on the north side of West Tenth Street (Photo 5). This reach is a few feet from and runs parallel to O Street. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-2 Environmental Checklist and Discussion Photo 4. Reach A-1, north view of channel looking downstream/along O Street, showing earthen channel at the Fairgrounds property. (Nomad 2013a) Photo 5. Reach A-1/Reach A-2 Transition Point, view of channel looking south, from west side of O Street. (Nomad 2013a) Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-3 April 2014 Photo 6.Reach A-2, open concrete channel, looking north with the carport on the right and vacant county owned land on the right and left. (Nomad 2013a) Reach A-2 transitions from the concrete-lined ditch covered by wooden planking to an open concrete-lined ditch, with an adjacent apartment building on the east side, and a security fence on the west side (Photo 6). Reach B-1 transitions from the open concrete-lined ditch to an earthen low-flow channel within a wider channel (approximately 90 feet) that can handle a larger capacity of water flow (Photos 7 and 8). Photo 7. Reach B-1, earthen channel looking north towards the culverts at Fourth Street. (ECORP 2013a) Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-4 Environmental Checklist and Discussion Photo 8. Reach B-1, earthen channel looking south. (Nomad 2013a) Reach B-2 transitions from box culverts under Fourth Street to a channel with a concrete bottom and concrete walls on both sides. The channel is heavy in vegetation in this channelized section along the Historical Society’s property. (Photo 9) Photo 9. Reach B-2, looking south towards West Fourth Street with industrial building on the left/east. (ECORP 2013a) Reach B-3 is a meandering earthen low-flow channel within a wider channel approximately 150 feet across. This reach supports extensive vegetation (Photo 10). Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-5 April 2014 Photo 10. Reach B-3, looking south with industrial buildings on east and west and the Historical Society’s building in the center background. (ECORP 2013a) Reach B-4 is a meandering earthen channel that transitions from a narrowing at the railroad tracks to a large wetland preserve to the north of the tracks. This wetland preserve is on the south side of the San Joaquin River/Sacramento-San Joaquin Delta and west of the Antioch City Marina (Photo 11). Photo 11. Reach B-4, looking northeast towards the Dow Wetlands Preserve north of the railroad tracks. (ECORP 2013a) The access, staging and stockpiling areas for the Project consist of vacant open space, open hardscape areas around the warehouse, manufacturing, and industrial facilities, and existing roads (see Figures 2b. Staging/Stockpiling Areas and Access Points and 5. Potentially Impacted Parcels). Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-6 Environmental Checklist and Discussion 4.1.2 Aesthetics (I.) Environmental Checklist and Discussion a) Would the project have a substantial adverse effect on a scenic vista? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact Scenic vistas or resources mentioned in the City of Antioch General Plan consist of views of Mt. Diablo, ridgelines, and the San Joaquin River/Sacramento-San Joaquin Delta. The improvements required to implement the Project would be at street level or below and, therefore, would not obstruct or limit views of the City’s scenic resources. No impacts would occur. Alternatives Analysis The alternatives would not have a substantial adverse effect on a scenic vista. The impact analysis above for the Project would be applicable to all of the alternatives. b) Would the project substantially damage scenic resources, including, but not limited to, trees, rock outcroppings, and historic buildings within a state scenic highway? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project is not located adjacent to a state scenic highway (Caltrans 2013). According to the California Scenic Highway Mapping System and the Contra Costa County General Plan, SR-24, located southeast of Antioch and approximately 15 miles from the Project site, is officially designated as a state scenic highway and SR-160 is an eligible state scenic highway but not officially designated. The scenic portion of SR-4 and SR-160 is more than 3.5 miles to the east and the Project site would not be visible from this distance. No impact would occur. Alternatives Analysis All four alternatives for Reach A would be located in the same area as the Project. The impact analysis above for the Project would be applicable to all of the alternatives. c) Would the project substantially degrade the existing visual character or quality of the site and its surroundings? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact For Reach A, the project in the long term would not substantially degrade the existing visual character or quality of the site and its surroundings. The Project would improve the visual character of the creek channel in Reach A-2 by opening 200 feet of the creek channel to daylight, improving the visual character of this area once the Project is fully implemented. In the near term, the visual Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-7 April 2014 character and quality of the site would be negatively affected by the demolition and construction of the culverts and channel expansion. For Reach B, the Project in the long term would not substantially degrade the existing visual character or quality of the site and its surroundings. However, in the near term visual character or site quality would be negatively affected. Reach B would be stripped of the vegetation that currently exists and sediment would be stockpiled to dry before being hauled off site. In the long term, the channel would be revegetated with native species and regularly maintained to prevent overgrowth of non-native vegetation and the consequent loss of design flood conveyance capacity. A less than significant impact would occur for Reach A and B. Alternatives Analysis All four alternatives for Reach A would be located in generally the same area. The Preferred Alternative for Reach A would have the same impacts as Alternatives 4 and 5, shortening the enclosed portion of the channel from 300 feet to 100 feet. Both of these alternatives would also demolish either one or both buildings at 1400 West Tenth Street. However, these buildings are not eligible for the National Register (ECORP 2013a) and are not designated as locally scenic by the City. Alternatives 4 and 5 would not degrade the existing visual character or quality of the site and its surroundings; and would improve the visibility of the creek channel. Alternative 1 would have the same visual effect as the current condition, so the same amount of creek channel would be visible. Alternative 1 would not degrade the existing visual character or quality of the site and its surroundings. Alternative 2 would enclose more of the creek channel, extending the enclosed portion from its current 300 feet to 700 feet of culvert. Alternative 2 would not degrade the existing visual character or quality of the site and its surroundings permanently. Implementation of any of these alternatives would result in a less than significant impact on the visual character of the site. d) Would the project create a new source of substantial light or glare, which would adversely affect day or nighttime views in the area? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project consists of replacing existing culverts, removing debris, relocating a car port, and daylighting a portion of an existing urban creek channel. The Project would primarily be at or below street level and does not consist of any surfaces (such as glass or metal) that are potential producers of glare. No impacts would occur. Alternatives Analysis All four alternatives for Reach A would be located in the same area as the Project. The impact analysis above for the Project would be applicable to all of the alternatives. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-8 Environmental Checklist and Discussion 4.2 Agriculture and Forestry Resources 4.2.1 Environmental Setting The Project site is an urban creek channel in the northwestern portion of the City of Antioch. The channel is covered by a road and a parking lot before it opens up into a concrete-lined ditch and eventually an earthen channel. The Project site has the following zoning designations: Reach A-1 is Zoned U – Unincorporated Area (Not Zoned); Reaches A-2 and B-1 are Zoned Neighborhood/Community Commercial District (C-2) and High Density Residential (R-20); Reaches B-2 and B-3 are Zoned Planned Business Center (PBC); Reach B-4 is Zoned OS – Open Space/Public Use District (City of Antioch 2013a). The County of Contra Costa does participate in the California Land Conservation Act or Williamson Act (DOC 2010). However, the Project site is not designated as Prime Farmland nor is it under a Williamson Act contract. Therefore, no local policies for agricultural resources apply to the Project site. 4.2.2 Agriculture and Forestry Resources (II.)Environmental Checklist and Discussion a) Would the project convert Prime Farmland, Unique Farmland, or Farmland of Statewide Importance (Farmland), as shown on the maps prepared pursuant to the Farmland Mapping and Monitoring Program of the California Resources Agency, to non- agricultural use? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project site is not located on Prime Farmland, Unique Farmland, or Farmland of Statewide Importance, and the Project would not convert such farmland to non-agricultural use (CCC 2005, 2013, City of Antioch 2003, NRCS 2013, DOC 2010). No impact would occur. Alternatives Analysis The four alternatives for Reach A are located in the same area as the Project. No impact would occur. b) Would the project conflict with existing zoning for agricultural use, or a Williamson Act contract? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact As discussed above in the environmental setting, the Project is not located in an agricultural use zone. Therefore, the Project would not result in a conflict with an agricultural zoning designation or a Williamson Act contract. No impact would occur. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-9 April 2014 Alternatives Analysis The four alternatives for Reach A are located in the same area as the Project. No impact would occur. c) Would the project conflict with existing zoning for, or cause rezoning of, forest land (as defined in Public Resources Code section 12220(g)), timberland (as defined by Public Resources Code section 4526), or timberland zoned Timberland Production (as defined by Government Code section 51104(g))? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project involves improvements to an urban creek channel and the Project site is not zoned for forest land, timberland, or timberland production (City of Antioch 2003) so there would be no zoning conflicts. Further, the Project site does not contain forest or timber resources. No impact would occur. Alternatives Analysis The four alternatives for Reach A are located in the same area as the Project. No impact would occur. d) Would the project result in the loss of forest land or conversion of forest land to non- forest use? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project is within an urban creek channel and is not zoned for forestland, timberland, or timberland production (City of Antioch 2003). The Project site does not contain forest or timber resources. No impact would occur. Alternatives Analysis The four alternatives for Reach A are located in the same area as the Project. No impact would occur. e) Would the project involve other changes in the existing environment, which, due to their location or nature, could result in conversion of Farmland to non-agricultural use or conversion of forest land to non-forest use? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-10 Environmental Checklist and Discussion The Project would not change the land use of the urban creek channel. The Project site and surrounding area is not zoned or used for agriculture, and it is not considered farm land or forest land. No impact would occur. Alternatives Analysis The four alternatives for Reach A are located in the same area as the Project. No impact would occur. 4.3 Air Quality An Air Quality Study was prepared for the Project by KD Anderson & Associates (KDA 2014; Appendix A). The findings of the Air Quality Study are summarized in this section. 4.3.1 Environmental Setting The Project site is located within the San Francisco Bay Area Air Basin (SFBAAB) and is within the jurisdiction of the Bay Area Air Quality Management Air District (BAAQMD). The Project area is designated a nonattainment area for federal and state standards for ozone and fine particulate matter smaller than 2.5 microns in diameter (PM2.5), and for the state standard for particulate matter smaller than 10 microns in diameter (PM10). The Project area is designated attainment or unclassified for federal and state carbon monoxide (CO), nitrogen dioxide (NO2), and sulfur dioxide (SO2) standards, and the federal PM10 standard (KDA 2014). 4.3.2 Air Quality (III.) Environmental Checklist and Discussion a) Would the project conflict with or obstruct implementation of the applicable air quality plan? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The BAAQMD prepares plans to attain ambient air quality standards in the SFBAAB. The BAAQMD prepares ozone attainment plans (OAP) for the national ozone standard and clean air plans for the California standard, both in coordination with the Metropolitan Transportation Commission (MTC) and the Association of Bay Area Governments (ABAG). In 1999, the BAAQMD issued the document BAAQMD CEQA Guidelines to address and include thresholds of significance for determining the significance of air quality impacts. (KDA 2014). In 2010, the BAAQMD adopted updated significance thresholds to assist in the review of projects under CEQA. However, “on March 5, 2012 the Alameda County Superior Court issued a judgment finding that the Air District had failed to comply with CEQA when it adopted the Thresholds. The court did not determine whether the Thresholds were valid on the merits, but found that the adoption of the Thresholds was a project under CEQA. The court issued a writ of mandate ordering the District to set aside the Thresholds and cease dissemination of them until the Air District had complied with CEQA. The Air District has appealed the Alameda County Superior Court’s decision. The Court of Appeal of the State of California, First Appellate District, reversed the trial court's decision. The Court of Appeal's decision was appealed to the California Supreme Court, which granted limited review, and the matter is currently pending there.” (BAAQMD 2014) Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-11 April 2014 Based on the above, this Project is evaluated using the Bay Area 1999 CEQA Guidelines. The Project would not conflict with or obstruct the implementation of the Bay Area 1999 CEQA Guidelines because construction, operation, and maintenance emissions would be mitigated thru implementation of the control measures in the guidelines (see response to III. b) below). Implementation of the control measures listed in Mitigation Measure AQ-1 would reduce air quality impacts associated with construction emissions to less than significant. Alternatives Analysis The potential air quality impact associated with each Reach A alternative is considered similar to the Project because the control measures would be implemented for all alternatives. The potential air quality impact associated with each Reach A alternative is considered similar to the Project because the control measures would be implemented for all alternatives. With the implementation of the control measures listed in Mitigation Measure AQ-1 the alternative impacts associated with construction emissions would be less than significant. b) Would the project violate any air quality standard or contribute substantially to an existing or projected air quality violation? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project’s air quality impacts are mainly attributable to short-term construction activities. The significance of construction-related criteria pollutant emissions was determined by assessing the size of the construction area in acres and, based on methods presented in the BAAQMD CEQA Guidelines, determining the need for mitigation measures. In the long term, the Project would be considered to result in significant air quality impacts if it would result in emissions greater than the BAAQMD December 1999 operational thresholds presented in Table 4. Table 4. Bay Area Air Quality Management District Operational Thresholds Type and source of Emissions Operational Related Average Daily Emissions (lbs./day)Maximum Annual Emissions (tpy) Reactive Organic Gas (ROG) 80 15 Nitrogen Oxides (NOx) 80 15 PM10 (Emissions) 80 15 Notes: lbs./day = pounds per day, tpy = tons per year, Source: KDA 2014 4.3.2.1 Construction Impacts Construction of the Project would generate air pollutant emissions. Construction activities such as demolition, grading, excavation and travel on unpaved surfaces would generate dust, and can lead to elevated concentrations of PM10 and PM2.5. The determination of significance with respect to construction emissions should be based on a consideration of the control measures to be implemented. From the BAAQMD’s perspective, Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-12 Environmental Checklist and Discussion quantification of construction emissions is not necessary (although a Lead Agency may elect to do so - see Section 3.3 of the Guidelines, “Calculating Construction Emissions,” for guidance). The Lead Agency should review Table 2 in the guidelines. If all of the control measures indicated in Table 2 of the guidelines (as appropriate, depending on the size of the project area) will be implemented, then air pollutant emissions from construction activities would be considered a less than significant impact. If all of the appropriate measures in Table 2 of the guidelines will not be implemented, then construction impacts would be considered to be significant (unless the Lead Agency provides a detailed explanation as to why a specific measure is unnecessary or not feasible). Implementation of the control measures listed in Mitigation Measure AQ-1 would reduce impacts associated with construction emissions to less than significant. Mitigation Measure AQ-1: Basic Measures from Table 2 of the BAAQMD CEQA Guidelines The following are the Basic Measures from Table 2 of the BAAQMD CEQA Guidelines. Table 2 notes, “The following controls should be implemented at all construction sites.” A. Water all active construction areas at least twice daily. B. Cover all trucks hauling soil, sand, and other loose materials or require all trucks to maintain at least two feet of freeboard. C. Pave, apply water three times daily, or apply (non-toxic) soil stabilizers on all unpaved access roads, parking areas and staging areas at construction sites. D. Sweep daily (with water sweepers) all paved access roads, parking areas and staging areas at construction sites. E. Sweep streets daily (with water sweepers) if visible soil material is carried onto adjacent public streets. The following are the Enhanced Measures from Table 2 of the BAAQMD CEQA Guidelines. Table 2 notes, “The following additional measures should be implemented at construction sites greater than four acres in area.” F. Hydroseed or apply (non-toxic) soil stabilizers to inactive construction areas (previously graded areas inactive for ten days or more). G. Enclose, cover, water twice daily or apply (non-toxic) soil binders to exposed stockpiles (dirt, sand, etc.) H. Limit traffic speeds on unpaved roads to 15 mph. I. Install sandbags or other erosion control measures to prevent silt runoff to public roadways. J. Replant vegetation in disturbed areas as quickly as possible. The following are the Optional Measures from Table 2 of the BAAQMD CEQA Guidelines. Table 2 notes, “The following control measures are strongly encouraged at construction sites that are large Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-13 April 2014 in area, located near sensitive receptors or which for any other reason may warrant additional emissions reductions.” K. Install wheel washers for all exiting trucks, or wash off the tires or tracks of all trucks and equipment leaving the site. L. Install wind breaks, or plant trees/vegetative wind breaks at windward side(s) of construction areas. M. Suspend excavation and grading activity when winds (instantaneous gusts) exceed 25 mph. N. Limit the area subject to excavation, grading and other construction activity at any one time. 4.3.2.2 Long-Term Operational Impacts Long-term operation and maintenance of the Project would include infrequent vehicular trips for short-term maintenance and monitoring activities as described in Section 2.3. The maintenance activities would involve substantially less equipment and activities than the initial construction of the Project, would not geographically re-distribute vehicle travel, and would not result in a change in stationary source emissions. Therefore, the Project would result in a minor change in long-term operational ROG, NOx, and PM10 emissions, and would have a less than significant impact on ozone and particulate matter concentrations (KDA 2014). Therefore, long-term operational impacts would be less than significant. Alternatives Analysis The potential air quality impact associated with each Reach A alternatives is considered to be similar to the Project because the control measures would be implemented for all alternatives. Even though, Alternative 4 or 5 would require the demolition of existing buildings at 1400 West Tenth Street and would require additional equipment work, with the implementation of the control measures, the difference would not be significant. With the implementation of the control measures listed in Mitigation Measure AQ-1 the alternative impacts associated with construction emissions would be less than significant. c) Would the project result in a cumulatively considerable net increase of any criteria pollutant for which the project region is non- attainment under an applicable federal or state ambient air quality standard (including releasing emissions which exceed quantitative thresholds for ozone precursors)? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact As noted earlier, the Project area would be within a designated a nonattainment area for federal and state standards for ozone and PM2.5, and for the state standard for PM10. As described in the response to III. b) above, neither short-term construction nor long-term operation and maintenance of the Project would exceed thresholds for ozone, PM2.5, and PM10 (KDA 2014). Implementation of Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-14 Environmental Checklist and Discussion Mitigation Measure AQ-1 would reduce PM10 construction emissions associated with fugitive dust to a less-than-significant level. Because the Project would not result in a significant impact, the Project would not result in a cumulatively considerable net increase in ozone and PM10 emissions. Therefore, with the implementation of Mitigation Measure AQ-1, this impact is considered less than significant. Alternatives Analysis The potential for the Reach A alternatives to result in a cumulatively considerable net increase of ozone and PM10 is considered to be similar to the Project because the control measures would be implemented for all of the alternatives. Even though, Alternative 4 or 5 would require the demolition of existing buildings on 1400 West Tenth Street and would require additional equipment work, with the implementation of the control measures, the difference would not be significant. With the implementation of the control measures listed in Mitigation Measure AQ-1 the alternative impacts associated with construction emissions would be less than significant. d) Would the project expose sensitive receptors to substantial pollutant concentrations? Potentially Significant Impact Less than Significant With Mitigation Incorporated Less than Significant Impact No Impact Air quality regulators typically define sensitive receptors as schools (preschool – 12th grade), hospitals, resident care facilities, residences, day-care centers, or other facilities that may house individuals with health conditions that would be adversely impacted by changes in air quality. A project would have a significant impact on a sensitive receptor if it would result in an unacceptable health risk due to exposure to toxic air contaminant (TAC) emissions. The Air Quality Study investigated the Project’s emissions of two types of TACs including naturally-occurring asbestos (NOA) and construction-related diesel particulate matter (KDA 2014). The Project site is not located in an area considered likely to contain NOA (KDA 2014). Construction activities would result in emissions of diesel particulate matter from heavy equipment used on site and truck traffic to and from the site, as well as minor amounts of TAC emissions from motor vehicles. Health effects attributable to exposure to diesel particulate matter are long-term effects based on chronic exposure to emissions. Health effects are generally evaluated based on a lifetime (70 years) of exposure. Due to the short-term nature of construction at the site, no adverse health effects would be anticipated from construction-related diesel particulate emissions. Motor vehicle emissions would not be concentrated in any one area but would be dispersed along travel routes and would not be anticipated to pose a significant health risk to receptors. (KDA 2014). Long-term operation and maintenance of the Project would include infrequent maintenance activities that would involve less equipment than the initial construction of the Project; therefore, impacts to sensitive receptors by exposure to substantial pollutant concentration from long-term operation and maintenance would be less than significant. For the reasons described above and with the implementation of Mitigation Measure AQ-1, the Project would not expose sensitive receptors to substantial pollutant concentrations. The impact with the implementation of Mitigation Measure AQ-1 would be less than significant. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-15 April 2014 Alternatives Analysis The potential for each alternative to expose sensitive receptors to substantial pollutant concentrations is considered to be similar to the Project because all alternatives would be located in the same area and heavy equipment required for construction are similar for all alternatives. With the implementation of the control measures listed in Mitigation Measure AQ-1 the alternative impacts associated with construction emissions would be less than significant. e) Would the project create objectionable odors affecting a substantial number of people? Potentially Significant Impact Less than Significant With Mitigation Incorporated Less than Significant Impact No Impact Construction of the Project could result in minor amounts of odor compounds associated with diesel heavy equipment exhaust. However, because construction equipment would be operating at various locations throughout the Project site, and because any operations near existing receptors would be temporary, impacts associated with odors during construction are considered less than significant. Long-term operation and maintenance of the Project would include infrequent maintenance activities that would involve less equipment than the initial construction of the Project; therefore, odor impacts from long-term operation would be less than significant. Objectionable odor impacts with the implementation of Mitigation Measure AQ-1 would be less than significant. Alternatives Analysis The heavy equipment required for construction and hours of construction for all Reach A alternatives would be similar to the requirements for the Project. As a result, Reach A alternatives would result in similar amounts of odor compounds associated with diesel heavy equipment exhaust. Therefore, the analysis above for the Project is considered representative for all Reach A alternatives. 4.4 Biological Resources 4.4.1 Environmental Setting A Biological Resource Assessment report (BRA) was prepared for the Project by Nomad Ecology (Nomad 2013a; Appendix B). The purpose of the report was to provide an assessment of existing conditions, evaluate habitat suitability for special-status plant and wildlife species, analyze potential Project impacts to biological resources, and provide recommendations for impact avoidance and minimization. In addition, the BRA identifies Planning Level Surveys and avoidance and minimization measures required by the East Contra Costa County Habitat Conservation Plan and Natural Community Conservation Plan (HCP/NCCP) and addresses biological resources as required by CEQA. The Project area is located in the City of Antioch approximately 0.75-mile north of SR 4. It extends from just south of the intersection of O Street and West Tenth Street north to the marsh that borders the San Joaquin River/Sacramento-San Joaquin Delta. The Project area lies approximately 10 miles northeast of the peak of Mount Diablo. Topography is fairly level, gradually sloping downstream, and ranges from approximately 10 to 30 feet in elevation. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-16 Environmental Checklist and Discussion The single hydrologic feature on-site is an approximately 0.79-mile stretch of West Antioch Creek that is highly urbanized. West Antioch Creek is characterized as an intermittent “blue-line” stream on the Antioch North and Antioch South USGS 7.5-minute quadrangles and in the HCP/NCCP. However, it receives local runoff from adjacent development, which may contribute to surface water flow all year. West Antioch Creek originates in the Mount Diablo foothills, more specifically in Black Diamond Mines Regional Park, to the south and drains north into the San Joaquin River/Sacramento-San Joaquin Delta by flowing north into Antioch Municipal Reservoir, where it continues north and is joined by several tributaries near SR 4. Markley Creek flows into West Antioch Creek approximately 0.5-mile south of the study area. West Antioch Creek flows through the study area and empties into the San Joaquin River/Sacramento-San Joaquin Delta, immediately north of the Project area. Vegetation Communities A total of six sensitive communities were observed in the Project area: alkali grassland, seasonal wetland, alkali wetland, permanent wetland, riparian woodland/scrub, and stream (Figure 6. HCP/NCCP Land Cover Types). Seasonal wetland, alkali wetland, permanent wetland, riparian woodland/scrub, and stream are considered sensitive natural communities as they may qualify as a water of the U.S. and/or Waters of the State under U.S. Army Corps of Engineers (USACE) and Regional Water Quality Control Board (RWQCB) jurisdictions through the Clean Water Act and the Porter Cologne Water Quality Act. Alkali grassland is listed as an uncommon vegetation alliance in the HCP/NCCP. Land Cover Types observed within the Project site include ruderal grassland, alkali grassland, seasonal wetland, alkali wetland, permanent wetland, riparian woodland/scrub, stream and urban, which follow land cover types described in the HCP/NCCP (Nomad 2013a). Other vegetation classification systems used to describe vegetation on-site include those described by Robert F. Holland in the Preliminary Description of the Terrestrial Natural Communities of California and A Manual of California Vegetation, Second Edition by John O. Sawyer, et al (Nomad 2013a). The ruderal grassland is characterized by sparse non-native, weedy vegetation occupying vacant parcels surrounded by developed areas. These areas include banks of the berms adjacent to the channelized creek and open fields within the Project site. Plants typical of ruderal grassland vegetation on-site include ripgut brome (Bromus diandrus), wild oats (Avena fatua), hare barley (Hordeum murinum ssp. leporinum), Italian ryegrass (Festuca perennis), Bermuda grass (Cynodon dactylon), johnsongrass (Sorghum halepense), charlock (Sinapsis arvensis), milk thistle (Silybum marianum), white-stemmed filaree (Erodium moschatum), and red-stemmed filaree (Erodium cicutarium), among many others. A small area of alkali grassland is present in the northern portion of the Project area, just south of the railroad tracks, on the edge of an access road. It is dominated by saltgrass (Ditstichlis spicata), with small amounts of Italian ryegrass, Mediterranean barley (Hordeum marinum ssp. gussoneanum), alkali mallow (Malvella leprosa), and five-hook bassia (Bassia hyssopifolia). Seasonal wetlands are present on the margins and floodplain of the West Antioch Creek low-flow channel, and extend from 1400 West Tenth Street downstream (north) to West Fourth Street. Plant species characteristic of seasonal wetlands in the Project area include Italian ryegrass, wild oats, burclover (Medicago polymorpha), rabbitsfoot grass (Polypogon monspeliensis), barnyard grass (Echinochloa crus-galli), birdfoot trefoil (Lotus corniculatus), tall flatsedge (Cyperus eragrostis), water bentgrass (Polypogon viridis), and many others. Figure 6. HCP/NCCP Land Cover Types West Antioch Creek Channel Improvement Project Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-18 Environmental Checklist and Discussion THIS PAGE INTENTIONALLY LEFT BLANK Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-19 April 2014 A small area of alkali wetland is present in the northern portion of the Project area, just south of the railroad tracks. It borders a dense stand of permanent wetland dominated by narrow-leaved cattail (Typha angustifolia). Plants species characteristic of the alkali wetland on-site include saltgrass, rabbitfoot grass, Italian ryegrass, Mediterranean barley, and alkali mallow. Permanent wetland is represented by one vegetation community alliance, Typha angustifolia Herbaceous Alliance (Cattail Marshes). Narrow-leaved cattail is dominant or co-dominant. Within the Project area, cattail marsh is located adjacent to the low-flow channel of West Antioch Creek downstream of West Fourth Street and at the margin of the San Joaquin River/Sacramento-San Joaquin Delta. These areas are tidally influenced and contain brackish water. Other plant species present in this community include tall flatsedge, perennial pepperweed (Lepidium latifolium), Himalayan blackberry (Rubus armeniacus), pampas grass (Cortaderia jubata), and western goldentop (Euthamia occidentalis), with scattered arroyo willow (Salix lasiolepis). Riparian woodland/scrub is represented by one vegetation alliance within the Project area, the Salix lasiolepis, Shrubland Alliance (Arroyo Willow Thicket). Arroyo willow is dominant or co-dominant. Arroyo willow shrubland is present in the channel, along a tributary ditch, and north of the railroad tracks. Scattered red willow (Salix laevigata), Fremont cottonwood (Populus fremontii ssp. fremontii) and Himalayan blackberry are also present. The stream vegetation community is represented by West Antioch Creek within the ordinary high water mark. The low-flow channel is mostly unvegetated, with small amounts of permanent wetland plants species scattered along the margins of the creek, such as tall flatsedge, narrowleaf cattail, and watercress (Nasturtium officinale). Two plant species considered to be “unusual plants” (rare or threatened locally, but possibly more common elsewhere in the State) by the East Bay Chapter of the California Native Plant Society (EBCNPS) were found within West Antioch Creek (Nomad 2013b). These are American water horehound (Lycopus americanus) and rough bugleweed (Lycopus asper). Both are considered “A-1” species, which are species currently known from two or less regions in Alameda and Contra Costa County (EBCNPS 2013). Within California, American water horehound has been found in 32 counties and rough bugleweed in six counties (Calflora 2013). These two species are widely distributed throughout California. During the course of this study, many non-native plant species were encountered within the study area. Of the non-native (e.g. invasive, noxious) plant species tracked by the California Invasive Plant Council (Cal-IPC 2013) and California Department of Food and Agriculture (CDFA 2005), a total of 11 plant species with elevated threat rankings were observed, including yellow star thistle (Centaurea solsitialis), jubata grass (Cortaderia jubata), fennel (Foeniculum vulgare), English ivy (hedera helix), broadleaf peppergrass (Lepidium latifolium), Himilayan blackberry (Rubus armeniacus), black mustard (Brassica nigra), bull thistle (Cirsium vulgare), poison hemlock (Conium maculatum), and stinkwort (Dittrichia graveolens). Potential Waters of the U.S. A wetland delineation was prepared for the Project area in April 2013 (Nomad 2013c) (Figures 7a. and 7b. Potentially Jurisdictional Wetlands and Waters). This delineation has not been verified by the USACE, however, potential waters of the U.S. mapped during this effort totaled 9.859 acres, including 8.285 acres of wetlands (i.e., seasonal wetland, coastal brackish marsh, and Central Coast riparian scrub) and 1.574 acres of other waters of the U.S. (i.e., stream). Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-20 Environmental Checklist and Discussion THIS PAGE INTENTIONALLY LEFT BLANK Figure 7a. Potential Jurisdictional Wetlands and Waters West Antioch Creek Channel Improvement Project Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-22 Environmental Checklist and Discussion THIS PAGE INTENTIONALLY LEFT BLANK Figure 7b. Potential Jurisdictional Wetlands and Waters West Antioch Creek Channel Improvement Project Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-24 Environmental Checklist and Discussion THIS PAGE INTENTIONALLY LEFT BLANK Figure 8a. Special Status Plant Species within the Vicinity West Antioch Creek Channel Improvement Project Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-26 Environmental Checklist and Discussion THIS PAGE INTENTIONALLY LEFT BLANK Figure 8b. Special Status Wildlife Species within the Vicinity West Antioch Creek Channel Improvement Project Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-28 Environmental Checklist and Discussion THIS PAGE INTENTIONALLY LEFT BLANK Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-29 April 2014 Prior to that, a wetland delineation was prepared by Nomad Ecology in 2009 and revised in 2010 (Nomad 2009, 2010) for a 4.9-acre portion (Drainage Area 55 Box Culvert at West Tenth Street) of the Project area, which was subsequently verified by the USACE in a preliminary jurisdictional determination (PJD) letter dated March 10, 2012 (USACE Regulatory 2010-00109). A total of 0.894 acre of waters of the U.S. were mapped and verified. This includes 0.422 acre of seasonal wetlands and 0.472 acre of stream (West Antioch Creek). As part of the Project design, the City of Antioch is working with the USACE and the USFWS to develop a strategy to mitigate for potential impacts to wetlands and suitable habitat for special- status species generated from the preferred Project. Although a wetland impact analysis has not been finalized to date, several acres of wetlands may be affected by the Project. For this reason, quantification of wetland impacts has not been completed. Special-Status Plants Rare plant surveys were conducted by Nomad Ecology during June, July, and August 2013 (Nomad 2013b). There are 71 special-status plant species known from the region. (Figure 8a. Special-Status Plant Species within the Vicinity). Of these 71 special-status plant species, 11 species are federal and/or state listed. Based on the field investigations, review of available databases and literature, familiarity with local flora, and on-site habitat suitability, two federal and/or state listed and California rare plant species were considered to have the potential to occur within the study area: soft bird’s-beak (Chloropyronmolle subsp. molle) and Mason's lilaeopsis (Lilaeopsis masonii) These two species were considered targets for rare plant surveys conducted in June, July, and August 2013 (Table 5). The surveys on the Project site found no special-status federal and/or state listed plant species (Nomad 2013b). Of the 71 regionally potential species, 60 species are California Native Plant Society listed. Based on the field investigations, review of available databases and literature, familiarity with local flora, and on-site habitat suitability, six species are considered to have the potential to occur within the study area: Bolander’s water hemlock (Cicutamaculata var. bolanderi), woolly rose-mallow (Hibiscus lasiocarpos var. occidentalis), Delta tule pea (Lathyrus jepsonii var. jepsonii), Delta mudwort (Limosella australis), side-flowering skullcap (Scutellaria lateriflora), and Suisun Marsh aster (Symphyotrichum lentum). These six species were considered targets for rare plant surveys conducted in June, July, and August 2013 (Table 5). The surveys on the Project site found no special-status CNPS listed plant species (Nomad 2013b). Table 5. Potentially Occurring and Surveyed Federal and/or State and CNPS Listed Plant Species Potentially Occurring Special-Status Plant Species Listing Status1 Potential for Occurrence Federal/State Listed Species Chloropyron molle subsp. Molle Soft bird’s-beak FE, SR CRPR 1B.2 Not observed during 2013 rare plant surveys. Lilaeopsis masonii Mason's lilaeopsis SR CRPR 1B.1 Not observed during 2013 rare plant surveys. California Rare Plant Rank Species Cicuta maculata var. bolanderi Bolander’s water hemlock CRPR 2.1 Not observed during 2013 rare plant surveys. Hibiscus lasiocarpos var. occidentalis Woolly rose-mallow CRPR 2.2 Not observed during 2013 rare plant surveys. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-30 Environmental Checklist and Discussion Potentially Occurring Special-Status Plant Species Listing Status1 Potential for Occurrence Lathyrus jepsonii var. jepsonii Delta tule pea CRPR 1B.2 Not observed during 2013 rare plant surveys. Limosella australis Delta mudwort CRPR 2.1 Not observed during 2013 rare plant surveys. Scutellaria lateriflora Side-flowering skullcap CRPR 2.2 Not observed during 2013 rare plant surveys. Symphyotrichum lentum Suisun Marsh aster CRPR 1B.2 Not observed during 2013 rare plant surveys. Notes: 1Explanation of State and Federal Listing Codes and HCP/NCCP Coverage Federal listing codes: FE Federally listed as Endangered California listing codes: SR State listed as Rare California Native Plant Society codes: 1B Rare or Endangered in California and elsewhere 2 Rare or Endangered in California, more common elsewhere California Native Plant Society Threat Codes: .1 Seriously Endangered in California (over 80% of occurrences Threatened / high degree and immediacy of threat) .2 Fairly Endangered in California (20-80% occurrences Threatened) Source: Nomad Ecology 2013a There are 17 listed plant species that are covered by and designated as no-take plant species in the HCP/NCCP. The HCP/NCCP Planning Survey Report also lists Land Cover Types that provide habitat for each of the covered and no-take species. Of the 17 covered/no-take species, all were ruled out as occurring on-site because there is no suitable habitat and they would have been detected during rare plant surveys conducted in June, July, and August 2013. Special-Status Wildlife Based on the field investigation conducted by Nomad Ecology (Nomad 2013a), review of available databases and literature, familiarity with local fauna, and on-site habitat suitability, a total of 90 special-status fish and wildlife species were considered as part of the assessment. Eighteen (18) species were determined to have the potential to occur within the study area and could be affected by the Project. (Table 6. Potentially Occurring Special-Status Fish and Wildlife Species) Special- status fish and wildlife species recorded in the California Natural Diversity Database are depicted in Figure 8b. The following list (Table 6) has four species listed as threatened or endangered, or designated by the state as fully protected, and 14 special-status species considered to be locally rare, sensitive or declining by agency or non-governmental watch lists. An additional twelve (12) species are not expected to occur on-site, but could not be entirely ruled out based on marginal habitat conditions, limited distribution information, or the lack of available life history data. A complete list of all species considered as part of this assessment, their regulatory status, habitat requirements, local distribution, and potential for occurrence are listed in the BRA. (Appendix B) This reach of West Antioch Creek does not likely support suitable California red-legged frog habitat due to its isolation from known occurrences, presence of warm-water predatory fish, and absence of riparian shade/cover. Therefore, California red-legged frog is not further discussed because significant impacts to the species are not likely to occur. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-31 April 2014 Table 6. Potentially Occurring Special-Status Fish and Wildlife Species within Project Area Potentially Occurring Special- Status Wildlife Species Listing Status1 HCP/NCCP Status Critical Habitat Potential for Occurrence Invertebrates Helminthoglypta nickliniana bridgesi Bridge’s coast range shoulderband Fed: None CA: None Other: SA Not Covered No Possible Fish Hypomesus transpacificus Delta smelt Fed: FT, CH CA: ST, Other: AFS-T Not Covered Yes Possible Pogonichthys macrolepidotus Sacramento splittail Fed: None CA: SSC, Other: AFS-V Not Covered No Possible Amphibians Rana draytonii California red-legged frog Fed: FT, CH CA: SSC Other: Covered Not within study area Possible Reptiles Emys marmorata Western pond turtle Fed: None CA: None Other: SA Covered No Possible Birds Accipiter cooperii Cooper’s hawk (nesting) Fed: None CA: WL Other: Not Covered No Possible Agelaius tricolor Tricolored blackbird (nesting colony) Fed: None CA: SSC, Other: ABC, BCC Covered No Possible Asio flammeus Short-eared owl (nesting) Fed: None CA: SSC, Other: ABC Not Covered No Possible Athene cunicularia Western burrowing owl (burrow sites & some wintering sites) Fed: None CA: SSC, Other: BCC Covered No Possible Baeolophus inornatus Oak titmouse (nesting) Fed: None CA: Other: SA, ABC Not Covered No Possible Circus cyaneus Northern harrier (nesting) Fed: None CA: SSC Other: Not Covered No Possible Elanus leucurus White-tailed kite (nesting) Fed: None CA: FP Other: Covered (No Take) No Possible Geothlypis trichas sinuosa Saltmarsh common yellowthroat Fed: None CA: SSC, Other: BCC Not Covered No Possible Icteria virens Yellow-breasted chat (nesting) Fed: None CA: SSC Other: Not Covered No Possible Lanius ludovicianus Loggerhead shrike (nesting) Fed: None CA: SSC, Other: BCC Not Covered No Possible Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-32 Environmental Checklist and Discussion Potentially Occurring Special- Status Wildlife Species Listing Status1 HCP/NCCP Status Critical Habitat Potential for Occurrence Laterallus jamaicensis coturniculus California black rail Fed: None CA: ST, FP Other: ABC, BCC Not Covered No Possible Melospiza melodia maxillaris Suisun song sparrow Fed: None CA: SSC Other: BCC Not Covered No Possible Picoides nuttallii Nuttall’s woodpecker (nesting) Fed: None CA: None Other: SA, ABC, BCC Not Covered No Possible Mammals None Notes: 1 Explanation of State and Federal Listing Codes Federal listing codes: California listing codes: FT Federally listed as Threatened ST State listed as Threatened CH Critical Habitat (Designated or Proposed) FP Fully Protected SSC California Species of Special Concern WL Watch List Other Codes for locally sensitive and rare: ABC The American Bird Conservancy maintains a Green List of all the highest priority birds for conservation in the continental United States and Canada. Based off the species assessments prepared by Partners in Flight (PIF) and has been expanded to include shorebirds, waterbirds and waterfowl. AFS American Fisheries Society identifies marine, estuarine and diadromous fish species that are at risk of extinction in North America. The AFS has designated the following four classifications in order of conservation importance E – Endangered, T – Threatened, V – Vulnerable, and CD – Conservation Dependent. BCC U.S. Fish and Wildlife Service Birds of Conservation Concern. List of migratory and non-migratory bird species (beyond those already designated as federally threatened or endangered) that represent the Service’s highest conservation priorities. SA “Special Animals” is a general term that refers to all of the taxa the CNDDB is interested in tracking, regardless of their legal or protection status. This list is also referred to as the list of “species at risk” or “special status species.” The CDFW considers the taxa on this list to be those of greatest conservation need. Source: Nomad Ecology 2013a Wildlife/Movement/Corridors The Project area is almost entirely surrounded by urban development, limiting potential migration, dispersal and home range movement to and from West Antioch Creek and its associated riparian corridor. West Antioch Creek is a relatively narrow, channelized and earthen stream corridor crossing through the northern portion of the City of Antioch. The creek and associated floodplain and riparian corridor meet open tidally influenced marshlands of the San Joaquin River at the northern Project terminus. West Antioch Creek extends southward along a narrow, channelized corridor through dense urban habitat before going underground. Connection to the undeveloped lands of the northern Diablo Mountain Range is restricted by urbanization and SR-4, limiting movement of special-status and common species. The Project area provides connection for aquatic, marshland and riparian species to adjacent ruderal habitat and large contiguous tidally-influences marshlands to the north. A number of species observed along West Antioch Creek may travel along the creek corridor and through the study area including western pond turtle (Actinemys marmorata), river otter (Lontra canadensis), muskrat (Ondatra zibethicus), raccoon (Procyon lotor), Virginia opossum (Didelphis virginiana), and striped skunk (Mephitis mephitis). The corridor also provides connectivity for invasive species such as the New Zealand mud snail (Potamopyrgus antipodarum), signal crayfish (Pacifastacus leniusculus), Louisiana red swamp crayfish (Procambarus clarkia), red-eared slider turtles (Trachemys scripta elegans), house mouse (Mus musculus), roof rat (Rattus rattus), Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-33 April 2014 and brown rat (Rattus norvegicus). Habitat upstream of the study area becomes increasingly urbanized, culverted, and undergrounded, thereby preventing the upstream movement of resident and anadromous fish species. 4.4.2 Regulatory Setting Federal Regulations Federal Endangered Species Act (FESA) The FESA protects plants and wildlife that are listed as endangered or threatened by the USFWS and the National Marine Fisheries Service (NMFS). Section 9 of FESA prohibits the taking of endangered wildlife, where taking is defined as “harass, harm, pursue, hunt, shoot, wound, kill, trap, capture, collect, or attempt to engage in such conduct” (50CFR 17.3). For plants, this statute governs removing, possessing, maliciously damaging, or destroying any endangered plant on federal land and removing, cutting, digging-up, damaging, or destroying any endangered plant on non-federal land in knowing violation of state law (16 USC 1538). Under Section 7 of FESA, federal agencies are required to consult with the USFWS if their actions, including permit approvals or funding, could adversely affect a listed (or proposed) species (including plants) or its critical habitat. Through consultation and the issuance of a biological opinion, the USFWS may issue an incidental take statement allowing take of the species that is incidental to an otherwise authorized activity provided the activity will not jeopardize the continued existence of the species. Section 10 of FESA provides for issuance of incidental take permits (ITP) where no other federal actions are necessary provided a HCP is developed. Migratory Bird Treaty Act The Migratory Bird Treaty Act (MBTA) implements international treaties between the U.S. and other nations devised to protect migratory birds, any of their parts, eggs, and nests from activities such as hunting, pursuing, capturing, killing, selling, and shipping, unless expressly authorized in the regulations or by permit. As authorized by the MBTA, the USFWS issues permits to qualified applicants for the following types of activities: falconry, raptor propagation, scientific collecting, special purposes (rehabilitation, education, migratory game bird propagation, and salvage), take of depredating birds, taxidermy, and waterfowl sale and disposal. The regulations governing migratory bird permits can be found in 50 CFR part 13 General Permit Procedures and 50 CFR part 21 Migratory Bird Permits. The State of California has incorporated the protection of birds of prey in Sections 3800, 3513, and 3503.5 of the California Fish and Game Code. Federal Clean Water Act The federal Clean Water Act’s (CWA) purpose is to “restore and maintain the chemical, physical, and biological integrity of the nation’s waters.” Section 404 of the CWA prohibits the discharge of dredged or fill material into “waters of the United States” without a permit from the U.S. Army Corps of Engineers (USACE). The definition of waters of the U.S. includes rivers, streams, estuaries, the territorial seas, ponds, lakes and wetlands. Wetlands are defined as those areas “that are inundated or saturated by surface or ground water at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions” (33 CFR 328.3 7b). The U.S. Environmental Protection Agency (EPA) also has authority over wetlands and may override a USACE permit. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-34 Environmental Checklist and Discussion Substantial impacts to wetlands may require an Individual Permit from the USACE. Projects that only minimally affect wetlands may meet the conditions of one of the existing USACE Nationwide Permits. A Water Quality Certification or waiver pursuant to Section 401 of the CWA is required for Section 404 permit actions; this certification or waiver is issued by the Regional Water Quality Control Board (RWQCB). State or Local Regulatory Requirements California Endangered Species Act The CESA generally parallels the main provisions of the FESA, but unlike its federal counterpart, the CESA applies the take prohibitions to species proposed for listing (called “candidates” by the state). Section 2080 of the California Fish and Game Code prohibits the taking, possession, purchase, sale, and import or export of endangered, threatened, or candidate species, unless otherwise authorized by permit or in the regulations. Take is defined in Section 86 of the Fish and Game Code as “hunt, pursue, catch, capture, or kill, or attempt to hunt, pursue, catch, capture, or kill.” CESA allows for incidental take to otherwise lawful development projects. State lead agencies are required to consult with the California Department of Fish and Wildlife (CDFW) to ensure that any action they undertake is not likely to jeopardize the continued existence of any endangered or threatened species or result in destruction or adverse modification of essential habitat. East Contra Costa County Habitat Conservation Plan/Natural Communities Conservation Plan The East Contra Costa County Habitat Conservation Plan/Natural Communities Conservation Plan (HCP/NCCP) (Nomad 2013a) has obtained authorization for take of covered species under FESA and CESA. Covered species are those species fully addressed in the HCP/NCCP and are included in the ESA and NCCP ITPs by evaluating and complying with avoidance and minimization requirements at a regional scale. In addition, the HCP/NCCP covers “no-take” species, which are species for which take is not authorized under the Natural Community Conservation Plan Act (NCCPA). In order to comply with the terms of the HCP/NCCP, the applicant must avoid all direct and indirect impacts on no-take species. Reach A of the Project area is located within the HCP/NCCP inventory area. The Reach B portion (desilting) of the Project is located outside of the HCP/NCPP inventory area and would require separate consultation with regulatory agencies. Fully Protected Species The State of California first began to designate species as “fully protected” prior to the creation of the CESA and FESA. Lists of fully protected species were initially developed to provide protection to those animals that were rare or faced possible extinction, and included fish, mammals, amphibians and reptiles, birds and mammals. Most fully protected species have since been listed as threatened or endangered under CESA and/or FESA. The regulations that implement the Fully Protected Species Statute (California Fish and Game Code Section 4700) provide that fully protected species may not be taken or possessed at any time. Furthermore, CDFW prohibits any state agency from issuing ITPs for fully protected species, except for necessary scientific research. Native Plant Protection Act The Native Plant Protection Act (NPPA) of 1977 (California Fish and Game Code Sections 1900-1913) was created with the intent to “preserve, protect and enhance rare and endangered plants in this State.” The NPPA is administered by CDFW. The Fish and Game Commission has the authority to designate native plants as “endangered” or “rare” and to protect endangered and rare plants from Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-35 April 2014 take. The CESA of 1984 (California Fish and Game Code Section 2050-2116) provided further protection for rare and endangered plant species, but the NPPA remains part of the California Fish and Game Code. California Streambed Alteration Notification/Agreement Section 1602 of the California Fish and Game Code requires that a Streambed Alteration application be submitted to CDFW for 1) any activity that may substantially divert or obstruct the natural flow or substantially change the bed, channel, or bank of any river, stream, or lake; 2) substantially change or use any material from the bed, channel, or bank of, any river, stream, or lake; or 3) deposit or dispose of debris, waste, or other material containing crumbled, flaked, or ground pavement where it may pass into any river, stream, or lake. CDFW reviews the proposed actions and, if necessary, submits to the Applicant a proposal for measures to protect affected fish and wildlife resources. The final proposal that is mutually agreed upon by CDFW and the Applicant is the Streambed Alteration Agreement. Often, projects that require a Streambed Alteration Agreement also require a permit from the USACE under Section 404 of the CWA and the RWQCB under Section 401 of the CWA. In these instances, the conditions of the Section 401 and 404 permits and the Streambed Alteration Agreement may overlap. CEQA Significance Criteria  Section 15064.7 of the CEQA Guidelines encourages local agencies to develop and publish the thresholds that the Lead Agency uses in determining the significance of environmental effects caused by projects under its review. However, agencies may also rely upon the guidance provided by the expanded Initial Study checklist contained in Appendix G of the CEQA Guidelines, which provides examples of impacts that would normally be considered significant. An evaluation of whether or not an impact on biological resources would be substantial must consider both the resource itself and how that resource fits into a regional or local context. Substantial impacts would be those that would diminish, or result in the loss of, an important biological resource, or those that would obviously conflict with local, state, or federal resource conservation plans, goals, or regulations. Impacts are sometimes locally important but not significant according to CEQA. The reason for this is that although the impacts would result in an adverse alteration of existing conditions, they would not substantially diminish, or result in the permanent loss of an important resource on a population-wide or region-wide basis. City of Antioch, Code of Ordinances, Title 9, Ch. 5, Article 12-Tree Preservation and Regulation (A) Within the city there exist many native and non-native trees that greatly add to the aesthetic quality of the city. The older parts of the city adjacent to the San Joaquin River/Sacramento-San Joaquin Delta contain several horticultural trees planted by early settlers that have since become landmarks. (B) The city recognizes that the retention of existing trees enhance the built environment, thus beautifying the community and benefiting the city with increased property values. It is the intent of this chapter to regulate the removal of trees, with the goal of retaining as many trees as possible while recognizing individuals' property rights. Protected trees include established indigenous trees (blue, Valley, coast live, canyon live and interior live oaks, California buckeye, and California bay at least 10 inches diameter at 4.5 feet above grade), landmark trees (48 inches diameter and/or in excess of 40 feet in height), mature trees (at least 26 inches diameter), and street trees. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-36 Environmental Checklist and Discussion 4.4.3 Biological Resources (IV.)Environmental Checklist and Discussion a) Would the project have a substantial adverse effect, either directly or through habitat modifications, on any species identified as a candidate, sensitive, or special status species in local or regional plans, policies, or regulations, or by the California Department of Fish and Wildlife or U.S. Fish and Wildlife Service? Potentially Significant Impact Less than Significant With Mitigation Incorporated Less than Significant Impact No Impact Special-status Plants No special-status plants were found within the Project area during protocol-level surveys conducted in 2013 (Nomad 2013b). Therefore, there are no impacts to special-status plants, and no further studies are necessary. Special-status Wildlife Bridge’s Coast Range Shoulderband Snail Suitable habitat is present within the ruderal grassland vegetation community types within the Project area. Given the relatively limited design of the Project and highly disturbed ruderal vegetation on the site, any impacts to Bridges’ coast range shoulderband snails are expected to be minimal and not considered significant. Delta Smelt, Sacramento Splittail There is 6.47 acres of delta smelt habitat in the Project area (including portions of the Dow wetlands). The Project is likely to affect 4.44 acres of delta smelt habitat and could result in mortality or injury to any or all delta smelt life history stages if present in the Project area by increasing turbidity, reducing water quality, temporarily altering shallow water habitat, and changing water velocities. The Project may also reduce recruitment, increase the risk of predation, reduce feeding success, and temporarily degrade overall habitat quality, resulting in a potentially-significant impact. Suitable Sacramento splittail habitat is present within the Project area. There is a possibility of Sacramento splittail occurring within the lower reaches of West Antioch Creek within the Project area, as no in-stream barriers to movement are present between the Project area and San Joaquin River/Sacramento-San Joaquin Delta. To reduce potential impacts to delta smelt and Sacramento splittail, Mitigation Measure BIO-1 and BIO-2 will be implemented. Mitigation Measure BIO-1 Delta Smelt, Sacramento Splittail A. To minimize take of delta smelt and Sacramento splittail and minimize disturbance to suitable habitat, desilting activities will be confined to a single calendar year. However, based on the extent of desilting required, in-stream work will be conducted during an Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-37 April 2014 extended work window from March 15 to October 15. If work cannot be completed by October 15, the City will request an extension from the United States Fish and Wildlife Service (USFWS). B. Standard Best Management Practices (BMPs) will be implemented to maintain water quality and control sedimentation. (See Mitigation Measures AQ-1 and G-1) C. Prior to dewatering and cofferdam installation/removal, a USFWS- and CDFW approved biologist will conduct a fish rescue for native fish and immediately relocate them to a suitable location upstream or downstream of the Project site as approved by the USFWS and CDFW. The USFWS/CDFW-approved biologist will be on-site during initial dewatering activities to ensure any fish that remain in the drawdown area are relocated to nearby suitable habitat. The City will submit the qualifications of qualified biologists to the USFWS for review and approval at least thirty (30) calendar days prior to Project initiation. D. Temporary fills including cofferdams and access roads will be completely removed following Project completion. E. If dewatering is necessary, pump intakes will be screened with mesh in accordance with National Oceanic Atmospheric Administration (NOAA) and National Marine Fisheries Services (NMFS) fish screening criteria for anadromous salmonids (NOAA 1997) to prevent uptake of fish that may be present in the creek. F. Sediment curtains will be placed downstream of the construction area during the installation and removal of the cofferdam to minimize downstream sediment transfer. G. A spill prevention plan for potentially hazardous materials will be prepared that includes procedures for handling and storing potentially hazardous materials, as well as cleanup and reporting of any spills. If necessary, containment berms will be constructed to prevent spilled materials from reaching the creek channel. H. Equipment and materials will not be stored within 50 feet of the creek unless it is on established paved areas. However, if it is necessary to store equipment or materials within 50 feet of the creek, temporary containment berms will be constructed around the equipment/materials. Staging and storage areas for equipment, materials, fuels, lubricants, and solvents will be located outside of the stream channel and banks. Secondary containment will be provided for stationary equipment such as motors, pumps, generators, and compressors located within or adjacent to the West Antioch Creek to contain potential spills. Any equipment or vehicles driven or operated within or adjacent to the creek will be checked and maintained daily to prevent leaks of materials that, if introduced to water, could be deleterious to aquatic life. I. No fueling, cleaning or maintenance of vehicles or equipment, or placement of trash will occur within 50 feet of the creek or floodplain as measured from the top of bank unless it occurs in designated refueling/staging areas on existing paved surfaces with secondary containment in place. Contractors will inspect all equipment/vehicles for leaks prior to using on the Project site and will be inspected regularly throughout the Project duration. J. All temporarily disturbed areas will be revegetated with native species suitable for the area. Thus preventing construction activities from becoming vectors for invasive non- native plant species, reduce the need for long-term use of herbicides, and reduce the potential for spreading seed within West Antioch Creek, as well as to neighboring parcels. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-38 Environmental Checklist and Discussion Mitigation Measure BIO-2 New Zealand mudsnail A. The New Zealand mudsnail (Potamopyrgusantipodarum) is a small aquatic snail native to New Zealand. It is listed as a regulated species by the California Aquatic Invasive Species Management Plan (CDFG 2008). Due to the presence of New Zealand mud snails (a non-native species that range in size from a grain of sand to 1/8 inch in length and are black or brown in color) within West Antioch Creek, which are classified as an invasive species by CDFW, the following precautions are advised: 1. All Project personnel shall be trained in the identification, preventative measures, and physical and chemical cleaning methodologies for New Zealand mud snails prior to working on the Project. Brochures or identification cards shall be available to all Project personnel and CDFW informational posters shall be installed at the Project site. 2. After work in West Antioch Creek, all waders, boots, gear, and other equipment will be thoroughly inspected for New Zealand mud snails. A cleaning station will be established on the Project site and maintained throughout the Project duration employing both physical and chemical cleaning methodologies. The cleaning station will implement the preventative and treatment methodologies in accordance with CDFW available at http://www.dfg.ca.gov/invasives/mudsnail/. 3. A designated cleaning area will be established for heavy equipment and vehicles. All heavy equipment will be cleaned prior to leaving the site in accordance with CDFW guidelines. 4. Fish and Western pond turtles shall be relocated to a safe location outside the work area, but shall not be translocated to another location other than West Antioch Creek to prevent the spread of New Zealand mud snails. Western Pond Turtle There is 8.71 acres of western pond turtle habitat in the study area, 6.64 acres of which could be temporarily affected. The Project could result in direct mortality or injury to individual western pond turtles and cause abandonment, reduced feeding success, loss of nests if breeding on-site, decreased recruitment, increased risk to predation, or subject individuals to poor water quality during construction. To reduce potential impacts to western pond turtles to a less than significant level, Mitigation Measure BIO-2 and BIO-3 shall be implemented. Mitigation Measure BIO-3 Western Pond Turtles A. A qualified biologist will conduct a preconstruction survey for western pond turtles immediately prior to work activities within the creek or floodplain downstream from the concrete-lined channel in Reach A-2. If western pond turtles are detected within the work area, no work will occur until they move or are captured and relocated outside of the work area. The on-site biologist will determine, in consultation with CDFW, if capturing and relocating the individual(s) is necessary. If authorized by CDFW, only a biologist in possession of a valid Scientific Collecting Permit will handle or relocate the turtles. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-39 April 2014 B. Western pond turtles should be relocated to a safe location outside the work area, but should not be translocated to another location other than West Antioch Creek to prevent the spread of New Zealand mud snails. Western Burrowing Owl There is 18.27 acres of suitable nesting habitat in the study area; 3.15 acres are in the Project extent and 10.46 acres may be used for staging areas. The Project could result in direct mortality or injury to breeding, resident or transient burrowing owls or cause harassment from noise or increased human activity. To reduce potential impacts to western burrowing owl to a less than significant level, Mitigation Measure BIO-4 will be implemented. Mitigation Measure BIO-4 is consistent with HCP/NCCP Conservation Measures (HCP/NCCP Chapter 6, Section 6.4.3) and the CDFG guidelines. Mitigation Measure BIO-4 Western Burrowing Owl Preconstruction Survey A. Prior to any ground disturbance related to covered activities, a USFWS/CDFW-approved biologist will conduct a preconstruction survey in areas identified in the planning surveys as having potential burrowing owl habitat. The surveys will establish the presence or absence of western burrowing owl and/or habitat features and evaluate use by owls in accordance with CDFW survey guidelines (CDFG 2012). On the parcel where the activity is proposed, the biologist will survey the proposed disturbance footprint and a 500-foot radius from the perimeter of the proposed footprint to identify burrows and owls. Adjacent parcels under different land ownership will not be surveyed. Surveys will take place near sunrise or sunset in accordance with CDFW guidelines. All burrows or burrowing owls will be identified and mapped. Surveys will take place no more than 30 days prior to construction. During the breeding season (February 1 – August 31), surveys will document whether burrowing owls are nesting in or directly adjacent to disturbance areas. During the nonbreeding season (September 1 – January 31), surveys will document whether burrowing owls are using habitat in or directly adjacent to any disturbance area. Survey results will be valid only for the season (breeding or nonbreeding) during which the survey is conducted. Avoidance and Minimization Measures and Construction Monitoring A. If burrowing owls are found during the breeding season (February 1 – August 31), the Project proponent will avoid all nest sites that could be disturbed by Project construction during the remainder of the breeding season or while the nest is occupied by adults or young. Avoidance will include establishment of a non-disturbance buffer zone (described below). Construction may occur during the breeding season if a qualified biologist monitors the nest and determines that the birds have not begun egg-laying and incubation or that the juveniles from the occupied burrows have fledged. During the nonbreeding season (September 1 – January 31), the Project proponent shall avoid the owls and the burrows they are using, if possible. Avoidance will include the establishment of a buffer zone (described below). Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-40 Environmental Checklist and Discussion If occupied burrows for burrowing owls cannot be avoided, passive relocation will be implemented during the non-nesting season (September 1-January 31). Owls will be excluded from burrows in the immediate impact zone and within a 160-foot buffer zone by installing one-way doors in burrow entrances. These doors will be in place for 48 hours prior to excavation. The Project area will be monitored daily for 1 week to confirm that the owl has abandoned the burrow. Whenever possible, burrows will be excavated using hand tools and refilled to prevent reoccupation (CDFG 2012). Plastic tubing or a similar structure shall be inserted in the tunnels during excavation to maintain an escape route for any owls inside the burrow. California Black Rail There is 4.93 acres of nonbreeding habitat in the Project area. Desilting of the lower reach of West Antioch Creek downstream of Fourth Street would result in the loss of 3.01 acres of nonbreeding habitat through the removal of cattails. To reduce potential impacts to California black rail to a less than significant level, Mitigation Measure BIO-5 shall be implemented. Mitigation Measure BIO-5 California Black Rail A. Within 700 feet of the Project footprint, focused preconstruction surveys for active California black rail nests, broods and calling centers will be conducted by a CDFW- approved biologist(s) within two weeks prior to the start of construction and monthly thereafter throughout the duration of the nesting season from February 1 to September 30. If active nests – nests with egg(s) or young present – broods, or calling centers are located in the survey area, all construction activities within 700 feet of the nest, brood or call center will cease immediately, CDFW will be notified within 24 hours of the observation and a 700 foot no-disturbance buffer will be established until the young have fledged unless otherwise directed by CDFW. B. A CDFW-approved biologist(s) will be present on site to monitor for California black rails during construction activities occurring downstream of Fourth Street. The biological monitor will have the authority to stop work if deemed necessary for any reason to protect federally listed species. If a California black rail is found in the work area, work within 100 feet of the rail(s) shall cease immediately and the CDFW-approved biologist(s) will monitor the rail until it leaves the work area. If the rail does not leave the work area, work will not restart until after the CDFW have made a decision on how to proceed with further construction activities. CDFW will be notified within 24 hours of an observation of a California black rail. Nesting Birds The Project would not likely result in the loss of known white-tailed kite, Cooper’s hawk, northern harrier, short-eared owl, or other protected raptor nests, but may result in the loss of potential nesting habitat (e.g. trees or ground nesting species) and foraging habitat. If present, the Project could result in harassment to nesting individuals and may temporarily disrupt foraging activities. Removal of trees, shrubs, cattails and other emergent vegetation would result in the loss of potential nesting and foraging habitat for Nuttall’s woodpecker, loggerhead shrike, oak titmouse, saltmarsh common yellowthroat, yellow-breasted chat, Suisun song sparrow, and tricolored blackbird. If nesting within the study area, the Project could result in short-term impacts such as Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-41 April 2014 failure to breed, nest abandonment, lower numbers of eggs, and decreased survivorship. Such disturbance may alter the bird’s behavior in ways that result in injury, mortality, or reduced foraging success; the temporary loss of habitat due to avoidance of areas that have suitable habitat but intolerable levels of disturbance; and altered activity patterns. All native birds, including raptors, are protected under the Fish and Game Code and the Federal MBTA. To ensure that there are no impacts to protected active nests, Mitigation Measure BIO-6 shall be implemented to reduce potentially adverse effects to nesting birds to a less than significant level. Mitigation Measure BIO-6 Nesting Birds A. Nesting Raptors a. The removal or trimming of trees within 250 feet of the Project footprint will be conducted during the non-breeding season, i.e. between September 1 and February 1, to avoid impacts to nesting raptors. If tree removal during the non-breeding season is infeasible, trimming or delimbing of suitable trees to discourage nesting shall be conducted during the non-breeding season. b. If Project construction begins during the breeding season, i.e. February 1 to August 31, preconstruction surveys for raptors will be conducted within the Project footprint and a 300-foot buffer, by a qualified biologist no more than two weeks prior to equipment or material staging, pruning/grubbing or surface-disturbing activities. c. If active raptor nests (i.e. nests in the egg laying, incubating, nestling or fledgling stages) are found within 300 feet of the Project footprint, non-disturbance buffers will be established at a distance sufficient to minimize disturbance based on the nest location, topography, cover, the nesting pair’s tolerance to disturbance and the type/duration of potential disturbance. No work will occur within the non-disturbance buffers until the young have fledged as determined by a qualified biologist. Buffer size will be determined in cooperation with CDFW or USFWS based on the type of work activity to be performed and the sensitivity of the species/individual(s) to disturbance. If buffers are established and it is determined that Project activities are resulting in nest disturbance, work will cease immediately and the CDFW or USFWS shall be contacted for further guidance. B. Protected Under the Migratory Bird Treaty Act a. If active nests (i.e. nests in the egg laying, incubating, nestling or fledgling stages) are found within 50 feet of the Project footprint during the preconstruction survey described under A. b. above, non-disturbance buffers will be established at a distance sufficient to minimize disturbance based on the nest location, topography, cover, the nesting pair’s tolerance to disturbance and the type/duration of potential disturbance. No work will occur within the non-disturbance buffers until the young have fledged as determined by a qualified biologist. Buffer size will be determined in cooperation with CDFW or USFWS based on the type of work activity to be performed and the sensitivity of the species/individual(s) to disturbance. If buffers are established and it is determined that Project activities are resulting in nest disturbance, work will cease immediately and the CDFW or USFWS shall be contacted for further guidance. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-42 Environmental Checklist and Discussion Alternatives Analysis All four alternatives for Reach A would result in direct impacts similar to the Project. The impact analysis above for the Project would be applicable to all of the alternatives, however, implementation of Alternatives 1 and 2 would result in less available habitat than the other alternatives due to the use of more extensive culverts in Reach A-1. This would not result in different or more severe impacts beyond those described under the Project and no additional mitigation would be required. b) Would the project have a substantial adverse effect on any riparian habitat or other sensitive natural community identified in local or regional plans, policies, regulations, or by the California Department of Fish and Wildlife or U.S. Fish and Wildlife Service? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact A total of six sensitive communities were found in the Project area: alkali grassland, seasonal wetland, alkali wetland, permanent wetland, riparian woodland/scrub, and stream. Seasonal wetland, alkali wetland, permanent wetland, riparian woodland/scrub, and stream are considered sensitive natural communities as they likely qualify as waters of the U.S. and/or Waters of the State falling under U.S. Army Corps of Engineers, Regional Water Quality Control Board, and California Department of Fish and Wildlife jurisdictions through the Clean Water Act, the Porter Cologne Water Quality Act and the State Fish and Game Code. Impacts to these sensitive communities would be reduced to a less than significant level with the incorporation of Mitigation Measure BIO-7, discussed under Item c). Alkali grassland is a sensitive non-wetland community that would be avoided. Therefore, there would be no anticipated impacts to alkali grassland. Preventing construction activities from becoming vectors for invasive non-native species, as discussed in the environmental setting, should be pursued as a way to protect native plant communities on-site, reduce the need for long-term use of herbicides, and to reduce the potential for spreading seed within West Antioch Creek, as well as to neighboring parcels. Alternatives Analysis All four alternatives for Reach A would be located in the same area as the Project. The impact analysis above for the Project would be applicable to all of the alternatives, however, implementation of Alternatives 1 and 2 would result in less potential for reestablishment of riparian habitat than the other alternatives due to the use of more extensive culverts in Reach A-1. This would not result in different or more severe impacts beyond those described under the Project and no additional mitigation would be required. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-43 April 2014 c) Would the project have a substantial adverse effect on federally protected wetlands as defined by Section 404 of the Clean Water Act (including, but not limited to, marsh, vernal pool, coastal, etc.) through direct removal, filling, hydrological interruption, or other means? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact As discussed earlier, potential waters of the U.S./State mapped within the Project area totaled 9.859 acres, and included 8.285 acres of wetlands (i.e., seasonal wetland, coastal brackish marsh, and Central Coast riparian scrub) and 1.574 acres of other waters of the U.S. (i.e., stream). The Project as designed has the potential to impact several acres of wetlands depending on the nature of the impacts (e.g. direct removal during de-silting). Given the preliminary impact analysis, mitigation may consist of several measures to reduce impacts to a less than significant level, as described below in Mitigation Measure BIO-7. Mitigation Measure BIO-7 Wetlands A. As part of the permitting process, the City will obtain a jurisdictional determination from the USACE of the prepared wetland delineation. B. Based on the preliminary design, a Section 404 permit application will be submitted to the USACE that includes a detailed analysis of mitigation that results in no net loss of wetlands. Wetland impacts of greater than 0.5 acre or greater than 300 feet of stream may be permitted under a Letter of Permission or an Individual Permit. C. Prepare a CDFW 1602 Streambed Alteration Agreement to quantify impacts to riparian and aquatic habitat. Alternatives Analysis All four alternatives for Reach A would be located in the same area as the Project. The impact analysis above for the Project would be applicable to all of the alternatives, however, implementation of Alternatives 1 and 2 would result in less potential for reestablishment of wetland habitat than the other alternatives due to the use of more extensive culverts in Reach A-2. This would not result in impacts beyond those described under the Project and no additional mitigation would be required. d) Would the project interfere substantially with the movement of any native resident or migratory fish or wildlife species or with established native resident or migratory wildlife corridors, or impede the use of native wildlife nursery sites? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project area is almost entirely surrounded by urban development, limiting potential migration, dispersal and home range movement to the channel of West Antioch Creek and its associated Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-44 Environmental Checklist and Discussion riparian corridor. West Antioch Creek is a relatively narrow, channelized and earthen stream corridor crossing through the northern portion of the City of Antioch. The creek, associated floodplain, and riparian corridor meet open tidally influenced marshlands of the San Joaquin River at the northern Project terminus. West Antioch Creek extends southward along a narrow, channelized corridor through dense urban habitat before being channelized, covered, and culverted. Connection to the undeveloped lands of the northern Diablo Mountain Range is restricted by urbanization and SR-4, limiting movement of special-status and common species. The Project area provides connection for aquatic, marshland and riparian species to adjacent ruderal habitat and large contiguous tidally- influenced marshlands to the north. Habitat upstream of the study area is increasingly urbanized thereby preventing the upstream movement of resident and anadromous fish species. Impacts associated with the Project would be limited to the construction, operation and maintenance. These activities would be short term and would not significantly alter the ability of the stream corridor to serve as a movement corridor in the long term. For the species described in the environmental setting, the impacts from the construction, operation and maintenance of the Project would be temporary and less than significant with the implementation of Mitigation Measures BIO-1 through 7. Alternatives Analysis All four alternatives for Reach A would be located in the same area as the Project. The impact analysis above for the Project would be applicable to all of the alternatives; however, implementation of Alternative 2 would restrict wildlife movement more than the other alternatives but the corridor is already highly restricted already. Therefore, the implementation of this alternative would not result in a significant impact to wildlife movement within this corridor and no additional mitigation would be required. e) Would the project conflict with any local policies or ordinances protecting biological resources, such as a tree preservation policy or ordinance? Potentially Significant Impact Less than Significant With Mitigation Incorporated Less than Significant Impact No Impact The Project may result in the removal of protected trees under the City of Antioch, Code of Ordinances, Title 9, Ch. 5, Article 12-Tree Preservation and Regulation. Implementation of Mitigation Measure BIO-8 would reduce impacts to protected trees to less than significant level. Mitigation Measure BIO-8 Tree Removal Prior to the removal of trees (if necessary) protected under the City of Antioch, Code of Ordinances, Title 9, Ch. 5, Article 12-Tree Preservation and Regulation, the City or its contractor will: A. Prepare and submit an application to the City’s Department of Parks, Leisure and Community Services for the removal of established trees. B. Replace trees that are legally removed, as follows: All trees that are legally removed shall be replaced according to the following schedule: Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-45 April 2014  Each established tree: two 24 inch box trees.  Each mature tree: two 48 inch box trees. Alternatives Analysis All four alternatives for Reach A would be located in the same area as the Project. The impact analysis above for the Project would be applicable to all of the alternatives. f) Would the project conflict with the provisions of an adopted Habitat Conservation Plan, Natural Community Conservation Plan, or other approved local, regional, or state habitat conservation plan? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact A portion of the Project area (Reach A) is located within the East Contra Costa County Habitat Conservation Plan and Natural Community Conservation Plan (HCP/NCCP) inventory area. Although the City of Antioch is not a permittee of the HCP/NCCP, the Contra Costa County Flood Control District, an HCP/NCCP permittee, has jurisdiction over drainages that span city and county boundaries including a portion of West Antioch Creek. The City would consult with the Contra Costa Flood Control District and East Contra Costa County Habitat Conservancy to determine if the Project can receive HCP/NCCP permit coverage. The Reach B portion (desilting) of the Project is located outside of the HCP/NCPP inventory area and would require separate consultation with regulatory agencies. Reach A would be subject to provisions of the East Contra Costa County HCP/NCCP (Nomad 2013a). In order to comply with the terms of the HCP/NCCP, the City will avoid all direct and indirect impacts on no-take species. With implementation of the Mitigation Measures described above in this section, there will be no direct or indirect impact on no-take species. Alternatives Analysis All four alternatives for Reach A would be located in the same area as the Project. The impact analysis above for the Project would be applicable to all of the alternatives. 4.5 Cultural Resources 4.5.1 Environmental Setting Cultural Resources A Cultural Resources Survey Letter Report was prepared by ECORP Consulting, Inc. (ECORP 2013a, Appendix C) for the Project to amend an original report prepared in 2010 for a portion of the Project area to determine if additional cultural resources were present in or adjacent to the newly Project area as well as to assess the sensitivity of the Project area for undiscovered or buried cultural resources. The Project area is located within a built environment. It is primarily bounded to the north by the Dow Wetland Preserve, on the east by residential and industrial development, on the south by the Contra Costa County Fairgrounds, and on the west by commercial and industrial development. A portion of the Project area is paved along the west side of the creek at 1400 West Tenth Street. Scattered vacant lots also occur within the developed areas Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-46 Environmental Checklist and Discussion The analysis of cultural resources was based on the original 2010 report, a new records search, various literature reviews, a historic map and aerial search, and a pedestrian survey of the entire Project area. The updated records search and literature review was conducted at the Northwestern Information Center of the California Historical Resources Information System at California State University-Sonoma on May 20, 2013, and the field survey was conducted August 23, 2013. The records and literature search identified 19 previous cultural resource investigations that had been conducted between 1976 and 2010 within 1.0 mile of the Project area, covering approximately 25 percent of the total area surrounding the Project area within the record search radius. These studies revealed the presence of historical period resources including railroads, refuse dumps, residences, and school buildings. The results of the records search indicate that areas along the creek have been previously surveyed for cultural resources through several linear and block surveys. The records search also determined that ten previously recorded historic-era cultural resources are located within 1.0 mile of the Project area; however, none are located within the Project area. Results of the literature review and Native American coordination are in the attached letter report (Appendix C). A search of the Sacred Lands File by the Native American Heritage Commission (NAHC) showed no Native American cultural resources in the Project area. The Antioch Historical Society and the Contra Costa County Historical Society were also contacted for historical information relevant to the Project. The report is included as Appendix C and the findings are summarized below. The pedestrian field survey resulted in no newly identified cultural resources. The Project area has no known archaeological sites and the West Antioch Creek Canal was evaluated as not eligible for the California Register of Historical Resources (CRHR) and not eligible for the National Register of Historic Places (NRHP) by ECORP (Appendix C). The Project area contains two buildings at 1400 West Tenth Street. The Project does not intend to affect or demolish these buildings; however, Alternative 4 would demolish both buildings and Alternative 5 would demolish one building. Mead & Hunt (2013; Appendix C) conducted a literature review, researched the history and architecture of the buildings, completed a physical inspection of the buildings, and found no evidence to suggest the buildings possess qualities that qualify them for listing in the NRHP or CRHR. There are no cultural resources evaluated as eligible for the CRHR or NRHP in the Project area. Therefore, no known Historical Resources, as defined by CEQA, would be affected by the Project, and no known Historic Properties, as defined in Section 106 of the National Historic Preservation Act, would be affected. Paleontological Resources A paleontological assessment was prepared by ECORP Consulting, Inc. (ECORP 2013b, Appendix E) for the Project to determine if paleontological resources were present in or adjacent to the Project area and assess the sensitivity of the Project area for undiscovered paleontological resources. The University of California Museum of Paleontology (UCMP) database results, more details about the geology, and the probability of finding fossil specimens can be found in the assessment in Appendix E. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-47 April 2014 A paleontological database search of the UCMP paleontology locality and specimen collection records for Contra Costa County was conducted in October 2013. The UCMP has 11,888 paleontological specimens from 2,476 localities in Contra Costa County. Not all specimens in the UCMP collections have been cataloged and digitized, resulting in other specimens potentially have been recorded within the vicinity of the Project area. At least 17 UCMP records are recorded in Antioch where the Project is located and Most of these occurrences are mammalian species from the Pleistocene epoch of the Quaternary period found in clay and fluvial sand soil types. Additional information from a review of regional geologic maps from the California Geological Survey, and a review of existing literature on paleontological resources of Contra Costa County was used to provide information about paleontological resources. According to the 2010 Geologic Map of California and the Geologic Map of the Sacramento Quadrangle, the underlying geologic formation for the Project area is classified as older alluvium, lake, playa, and terrace deposits with intertidal deposits at the north end of the Project area from the Quaternary period (ECORP 2013b, Appendix E). The records search determined that there are fossil vertebrate localities located in proximity to the Project area and the geology underlying the Project area has high potential for containing nonrenewable paleontological resources. (ECORP 2013b, Appendix E). 4.5.2 Regulatory Setting Cultural Resources Obligations Under CEQA To meet the regulatory requirements of the Project, a cultural resources investigation was conducted pursuant to the provisions for the treatment of cultural resources contained within CEQA (Pub. Res. Code § 21000 et seq.). The goal of CEQA is to develop and maintain a high-quality environment that serves to identify the significant environmental effects of the actions of a Project and to either avoid or mitigate those significant effects where feasible. CEQA pertains to all Projects that require state or local government agency approval, including the enactment of zoning ordinances, the issuance of conditional use permits, and the approval of development Project maps. CEQA (Title 14, CCR, Article 5, Section 15064.5) applies to cultural resources of the historical and prehistoric periods. Any Project with an effect that may cause a substantial adverse change in the significance of a cultural resource, either directly or indirectly, is a Project that may have a significant impact on the environment. As a result, such a Project would require avoidance or mitigation of impacts to those affected resources. Significant cultural resources must meet at least one of four criteria that define eligibility for listing on either the California Register of Historical Resources (CRHR) (Pub. Res. Code § 5024.1, Title 14 CCR, Section 4852) or the National Register of Historic Places (NRHP) (36 CFR 60.4). Cultural resources eligible for listing on the NRHP are considered Historic Properties under 36 CFR Part 800 and are automatically eligible for the CRHR. Resources listed on or eligible for inclusion in the CRHR are considered to be Historical Resources (significant) under CEQA. The Lead Agency is responsible for ensuring compliance with mitigation measures for Historical Resources, as defined by CEQA, In order to reduce impacts. Section 15097 of Title 14, Chapter 3, Article 7 of CEQA, Mitigation Monitoring or Reporting, states “the public agency shall adopt a program for monitoring or reporting on the revisions which it has required in the Project and the measures it has imposed to mitigate or avoid significant environmental effects. A public agency may delegate reporting or monitoring responsibilities to another public agency or to a private entity which accepts the delegation; however, until mitigation measures have been completed the lead Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-48 Environmental Checklist and Discussion agency remains responsible for ensuring that implementation of the mitigation measures occurs in accordance with the program.” 4.5.4 Cultural Resources (V.)Environmental Checklist and Discussion a) Would the project cause a substantial adverse change in the significance of a historical resource as defined in §15064.5? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact No historical resources were identified in the Project area as a result of the records search and field survey. However, there always remains a possibility that unrecorded cultural resources are present beneath the ground surface, and that such resources could be exposed during Project construction. CEQA requires the lead agency to address any unanticipated cultural resource discoveries during Project construction. The following mitigation measure would reduce potential adverse impacts to less than significant. Mitigation Measure C-1 Unanticipated Discovery: If subsurface deposits believed to be cultural or human in origin are discovered during construction, then all work will halt within a 100-foot radius of the discovery. A qualified professional archaeologist, meeting the Secretary of the Interior’s Professional Qualification Standards for prehistoric and historic archaeologist, will be retained to evaluate the significance of the find, and will have the authority to modify the no-work zone radius as appropriate, using professional judgment. A Native American monitor, following the Guidelines for Monitors/Consultants of Native American Cultural, Religious, and Burial Sites established by the Native American Heritage Commission (NAHC), will be required if the nature of the unanticipated discovery is prehistoric. Work cannot continue within the no-work zone radius until the archaeologist conducts sufficient research and data collection to make a determination that the resource is either1) not cultural in origin; or 2) not potentially significant or eligible for listing on the National Register of Historical Places (NRHP) or the California Register of Historic Resources (CRHR). If a potentially-eligible resource is encountered, then the archaeologist and the City will arrange for either 1) total avoidance of the resource, if possible; or 2) test excavations to evaluate eligibility and, if eligible, total data recovery as mitigation. The determination will be formally documented in writing as verification that the provisions in CEQA/NEPA for managing unanticipated discoveries have been met. In the event that evidence of human remains is discovered, construction activities within 100 feet of the discovery will be halted or diverted and the requirements for an unanticipated discovery will be implemented. In addition, the provisions of Section 7050.5 of the California Health and Safety Code, Section 5097.98 of the California Public Resources Code, and AB 2641 will be implemented. When human remains are discovered, state law requires that the discovery be reported to the County Coroner (Section 7050.5of the Health and Safety Code) and that reasonable protection measures be taken during construction to protect the discovery from disturbance (AB 2641). If the Coroner determines the remains are Native Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-49 April 2014 American, the Coroner notifies the NAHC, which then designates a Native American Most Likely Descendant (MLD) for the Project (Section 5097.98 of the Public Resources Code). The designated MLD then has 48 hours from the time access to the property is granted to make recommendations concerning treatment of the remains (AB 2641). If the landowner does not agree with the recommendations of the MLD, the NAHC can mediate (Section 5097.94 of the Public Resources Code). If no agreement is reached, the landowner must rebury the remains where they will not be further disturbed (Section 5097.98 of the Public Resources Code). This will also include either recording the site with the NAHC or the Northwest Information Center at Sonoma State University; using an open space or conservation zoning designation or easement; or recording a document with the county in which the property is located (AB2641). In the event that fossils are encountered, they shall be analyzed to a point of identification and curated at an established accredited museum repository with permanent retrievable paleontological storage. A technical report of findings shall be prepared with an appended itemized inventory of identified specimens and submitted with the recovered specimens to the curation facility. Alternatives Analysis The Alternatives 1 and 2 for Reach A are located in the same area as the Project. Potential adverse impacts would be less than significant with the incorporation of Mitigation Measure C-1. Alternative 4 would demolish both buildings and Alternative 5 would demolish one building at 1400 West Tenth Street. Mead & Hunt (2013; Appendix C) conducted an evaluation of both of these buildings and found no evidence to suggest the buildings possess qualities that qualify them for listing in the NRHP or CRHR. Therefore, they are not Historical Resources as defined by CEQA and impacts to the buildings would not be significant. Potential adverse impacts for the alternatives would be less than significant with the incorporation of Mitigation Measure C-1. b) Would the project cause a substantial adverse change in the significance of an archaeological resource pursuant to §15064.5? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact No archaeological resources were found during the records search and field survey. Therefore, impacts do not vary between Reach A and Reach B, and do not vary between the Reach A Alternatives. A less than significant impact to buried resources, if present, would occur with implementation of Mitigation Measure C-1 (See item a) discussion above. Alternatives Analysis The four alternatives for Reach A are located in the same area as the Project. Potential adverse impacts would be less than significant with the incorporation of Mitigation Measure C-1. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-50 Environmental Checklist and Discussion c) Would the project directly or indirectly destroy a unique paleontological resource or site or unique geologic feature? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact As discussed above, the Project area has a high potential for containing nonrenewable paleontological resources. To prevent potentially adverse impacts to paleontological resources during construction activities, Mitigation Measures C-1 and C-2 would be implemented to reduce impacts to a less than significant level in Reach A. Monitoring is not required during desilting activities which include the removal of accumulated sediment within Reach B. Impacts to paleontological resources would be less than significant with the implementation of Mitigation Measure C-1 for Reach B (desilting activities). Mitigation Measure C-2 Paleontological Monitoring for Reach A Paleontological monitoring will be required in Reach A during all subsurface ground- disturbing activities in undisturbed native soils and geological formations. The monitoring will be conducted by a qualified vertebrate paleontologist. The monitor will be equipped to recover fossils and sediment samples during excavation, and shall have the authority to temporarily halt or divert equipment to allow for recovery of large or numerous fossils. Alternatives Analysis The four alternatives for Reach A are located in the same area as the Project. Potential adverse impacts would be less than significant with the incorporation of Mitigation Measure C-2. d) Would the project disturb any human remains, including those interred outside of formal cemeteries? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact A search of the Sacred Lands File by the NAHC failed to indicate the presence of Native American cultural resources in the Project area (ECORP 2013a). While there is no reason to suspect the presence of human remains in the Project area, it is possible that currently unknown remains may occur. Therefore, impacts do not vary between Reach A and Reach B, and do not vary between the Reach A Alternatives. In the event that evidence of human remains is discovered the requirements of Mitigation Measure C-1 would be implemented. With implementation of Mitigation Measure C-1, this impact would be less than significant (see item a) discussion above. Alternatives Analysis The four alternatives for Reach A are located in the same location as the Project. Potential adverse impacts would be less than significant with the incorporation of Mitigation Measure C-1. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-51 April 2014 4.6 Geology and Soils 4.6.1 Environmental Setting Geomorphic Setting The City of Antioch is located in the central Coast Ranges Geomorphic Province of California. The Coast Ranges Geomorphic Province consists of mountain ranges and valleys trending northwest generally between 2,000 and 6,000 feet in elevation. These ranges are subparallel to the San Andreas Fault where the North American and Pacific lithospheric plates meet (CCC 2013). This province is between the Great Valley and the Pacific Ocean and is the largest geomorphic province in California extending from the northwestern corner of the state to west of Santa Barbara. The City of Antioch and the Project site are located between the hilly terrain of the Diablo Range and the terrace deposits at the entrance of the San Joaquin River/Sacramento-San Joaquin Delta. Regional Seismicity and Fault Zones An “active fault,” according to California Department of Conservation, Division of Mines and Geology, is a fault that has indicated surface displacement within the last 11,000 years. A fault that has not shown geologic evidence of surface displacement in the last 11,000 years is considered “inactive”. There are no faults subject to the Alquist-Priolo Earthquake Fault Zone Act (AP Act) within the City of Antioch (City of Antioch, 2003). No known active faults pass through the Project site (HTE 2013).Although no known active faults are located in the City of Antioch, the Project is within a few miles of the Hayward, Calaveras, Concord-Green Valley, and Marsh Creek-Greenville faults, which are all “active faults” (evidence of movement within the last 200 years) (City of Antioch 2003). For Contra Costa County, there is no volcanic activity, however, the San Andreas Fault is the largest regional fault, approximately 45 miles west, and is expected to be the source of future major earthquakes (CCC 2013). The City’s General Plan states these faults will produce a magnitude 6.7 or greater earthquake before 2030 with the major fault having a 70 percent probability and the smaller faults having a 30 percent probability. Soils Five soil types are identified within the Project area according to the Project’s Custom Soil Resource Report for Contra Costa County, California (NRCS 2013).The Project area contains five soil mapping units: Brentwood clay loam; Joice muck; Marcuse clay; Rincon clay loam (9-15% slopes); and Sycamore silty clay loam. The parent material of four soil types is alluvium and one is organic material. The organic soil type is located at the north end of the Project area at the railroad tracks and north into the wetlands preserve area. The other four soils are high in clays and range from well drained to very poorly drained. A geotechnical evaluation of the Project site was completed and determined that near surface soils have a moderate to high expansion potential (HTE 2013). Expansive soils change in volume with changes in their moisture content. Uneven changes in moisture content can cause differential movement within expansive soil (HTE 2013). These soils all occur at elevations of 10 to 300 feet, in a climate with mean annual rainfall of 10 to 18 inches, with hot dry summers and cool moist winters. The mean annual temperature is about 61 degrees Fahrenheit and the frost free season is 250 to 300 days. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-52 Environmental Checklist and Discussion 4.6.2 Geology and Soils (VI.) Environmental Checklist and Discussion a) Would the project expose people or structures to potential substantial adverse effects, including the risk of loss, injury, or death involving: i) Rupture of a known earthquake fault, as delineated on the most recent Alquist- Priolo Earthquake Fault Zoning Map issued by the State Geologist for the area or based on other substantial evidence of a known fault? Refer to Division of Mines and Geology Special Publication 42. Potentially Significant Impact Less than Significant With Mitigation Incorporated Less than Significant Impact No Impact ii) Strong seismic ground shaking? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact iii) Seismic-related ground failure, including liquefaction? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact iv) Landslides? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact i and ii) The Project site is not located in a Fault-Rupture Hazard Zone/Alquist-Priolo Earthquake Fault Zone. The risk of fault rupture within the site is low due to the absence of known active faults in the site or surrounding area. The site is expected to experience strong ground shaking caused by moderate to strong earthquakes from nearby faults during the anticipated life expectancy of the Project. The potential for damage due to ground shaking would be minimized by proper design of the Project as recommended by the geotechnical study (HTE 2013) and in accordance with applicable building codes. A less than significant impact would occur. iii) Liquefaction is a phenomenon where water-saturated granular soil loses shear strength during strong ground shaking produced by earthquakes. The loss of soil strength occurs as a consequence of cyclic pore water pressure increases below the groundwater surface. Potential hazards due to liquefaction include loss of bearing strength beneath structures, possibly causing foundation failure and/or significant settlements and differential settlements. Liquefaction generally occurs in areas where the ground water table is less than 50 feet below the surface. According to the United States Geological Survey (USGS) Earthquake information on the Contra Costa County Interactive GIS Map, the Project site is located in an area with a medium liquefaction susceptibility given the depth of the ground water table, geomorphology and soil morphology. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-53 April 2014 According to the Geotechnical Investigation report by Hultgren – Tillis Engineers (2013), soil conditions consist predominately of clay; ground water was measured at 7.0-7.5 feet below the ground surface, and therefore, the risk of liquefaction is low. A less than significant impact would occur. iv) The California Department of Conservation Landslide Inventory map (CCC 2013) was used to identify possible landslide problem areas. The Project site is located in a creek channel in fairly level terrain and is not located in an area with a probability of landslides. Landslides in areas that have steep slopes can be caused by seismic activity and/or extended periods of rain resulting in high water saturation of soils. Only the earthen channel banks would be subject to a slide if bank stabilization is not maintained or vegetation is removed. However, regular inspections and maintenance of the channel and banks would occur after Project completion. No impact would occur. Alternatives Analysis Impacts from the rupture of a known earthquake fault, strong seismic ground shaking, seismic- related ground failure, including liquefaction, and/or landslides on the four alternatives for Reach A would be similar to the impacts that would occur on the Project, as discussed above. b) Would the project result in substantial soil erosion or the loss of topsoil? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact Best Management Practices (BMPs) are included as part of the Storm Water Pollution Prevention Plan (SWPPP) and permits prepared for the Project and would be implemented to manage erosion and the loss of topsoil during construction-related activities (see Hydrology and Water Quality (IX.). Further, routine inspections and maintenance would be conducted on the channel, banks, outfalls, maintenance roads, and vegetation as part of the operation and maintenance outlined in Section 2.3. Therefore, soil erosion impacts would be reduced to a less than significant impact. Alternatives Analysis Substantial soil erosion or loss of topsoil impacts from the four alternatives for Reach A would be similar to the impacts of the Project, as discussed above. Impacts would be less than significant. c) Would the project be located on a geologic unit or soil that is unstable, or that would become unstable as a result of the project, and potentially result in on- or off-site landslide, lateral spreading, subsidence, liquefaction or collapse? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-54 Environmental Checklist and Discussion The Project area is mostly level except for the drainage channel banks. The Project site is underlain predominately by fine-grained lean and fat clay (HTE 2013). The Project site is located in an area categorized as stable and very stable in regards to slope stability; therefore, landslides would not be a concern (City of Antioch 2003). The Project site’s liquefaction potential is low (HTE 2013). Seismic ground shaking is probable due to the Project site’s proximity to major faults in the region; however, the Project would be designed and constructed in accordance with seismic safety requirements. Potential impacts from unstable soil that could result in lateral spreading, subsidence, and/or collapse would be less than significant with the incorporation of Mitigation Measure G-1. Mitigation Measure G-1 Geotechnical Report Recommendations The Project will follow all applicable recommendations made in the Geotechnical Investigation West Antioch Creek Channel Improvements Antioch, California prepared by Hultgren – Tillis Engineers. Alternatives Analysis All alternatives would be generally located in the same location as the Project; therefore, the soil conditions described above would be the same soil conditions that the four alternatives for Reach A would be subject to. Potential impacts from unstable soil that could potentially result in lateral spreading, subsidence, and/or collapse would be less than significant with the incorporation of Mitigation Measure G-1. d) Would the project be located on expansive soil, as defined in Table 18-1-B of the Uniform Building Code (1994), creating substantial risks to life or property? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project site is comprised of five soil types. These soils at the Project site, mapped by the Natural Resource Conservation Services, have moderate to high shrink/swell potential. Reach A-1 is Brentwood clay loam with a high shrink-swell potential, Reach A-2 is Brentwood clay loam and Sycamore silty clay loam with a moderate shrink-swell potential, and Reach B would not have structures installed that would be affected by expansive soils. Moderate to high expansion potential can cause differential movement within expansive soil causing structures and other Project improvements located directly on expansive soil to heave and settle in response to these movements. However, the base of the proposed box culverts would be below the seasonal zone of moisture change which would limit the potential for movement after installation (HTE 2013). The Project in Reach A would be culverts surrounded by a non-expansive fill material. A less than significant impact would occur with implementation of Mitigation Measure G-1. Alternatives Analysis All alternatives would be generally located in the same location as the Project; therefore, the soil conditions described above would be the same soil conditions that the four alternatives for Reach A would be subject to. Impacts from expansive soil would be less than significant with the incorporation of Mitigation Measure G-1. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-55 April 2014 e) Would the project have soils incapable of adequately supporting the use of septic tanks or alternative waste water disposal systems where sewers are not available for the disposal of waste water? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact Septic tanks or alternative wastewater disposal systems are not part of the Project design. No impacts would occur. Alternatives Analysis The four alternatives for Reach A would not include septic tanks or alternative wastewater disposal systems. No impact would occur. 4.7 Greenhouse Gas Emissions An Air Quality Study, which includes an analysis of greenhouse gas emissions, was prepared for the Project by KD Anderson & Associates (KDA 2014; Appendix A). The findings of the Air Quality Study are summarized in this section. 4.7.1 Environmental Setting The main source of greenhouse gas (GHG) emissions associated with the Project would be combustion of fossil fuels during short-term construction activities. The generation of GHG emissions has the potential to affect climate on a global scale. Pursuant to AB 32, the California Air Resources Board (CARB) prepared and adopted the Climate Change Scoping Plan. The Climate Change Scoping Plan outlines the State’s strategy to achieve the year 2020 GHG emissions limits specified in AB 32. The Climate Change Scoping Plan includes a comprehensive set of actions designed to reduce overall GHG emissions in California. 4.7.2 Greenhouse Gas Emissions (VII.)Environmental Checklist and Discussion a) Would the project generate greenhouse gas emissions, either directly or indirectly, that may have a significant impact on the environment? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact As previously stated in the Environmental Setting, the main source of GHG emissions associated with the Project would be combustion of fossil fuels during short-term construction activities. The construction phase of the Project is temporary, but would result in GHG emissions from the use of heavy construction equipment and construction-related vehicle trips. Estimates of construction- related GHG emissions associated with the Project are shown on Table 7. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-56 Environmental Checklist and Discussion Table 7. Construction Greenhouse Gas Emissions Reach Sub-Reach Activity Construction Period CO2 Emissions (Metric Tons) A A-1 Demolition/Excavation 26.1 Culvert Placement 36.6 Road Reconstruction 26.3 A A-2 Demolition 12.6 Excavation 85.7 Material Removal/Hauling 57.2 B B-1 Desilting 173.8 B B-2 Desilting 79.6 B B-3 Desilting 184.1 B B-4 Desilting 118.0 Construction Period Total 800.0 BAAQMD Significance Threshold 1,100 Notes: All values are expressed as metric tons of carbon dioxide emissions for the construction period. BAAQMD = Bay Area Air Quality Management District CO2 = Carbon Dioxide Source: KDA 2014 The BAAQMD does not specify a significance threshold for construction-related GHG emissions. The BAAQMD does provide significance thresholds for operational GHG emissions. To provide a quantitative basis for determining the significance of GHG impacts, the BAAQMD operational significance threshold of 1,100 MT of CO2 per year is applied to Project construction-related activities. The Project is considered to have a significant impact on GHG emissions if it would exceed this threshold. As shown in Table 7, the Project would result in 800.0 metric tons of CO2 emissions during the construction period which would be less than the BAAQMD significance threshold of 1,100 metric tons of CO2 emissions. Impacts would be less than significant. Long-term operation and maintenance as (discussed in section 2.3) of the Project would not geographically re-distribute vehicle travel, and would not result in a change in stationary source emissions. Therefore, the Project would not result in a change in operational GHG emissions. Impacts would be less than significant. Alternatives Analysis All Reach A alternatives would involve similar hours of construction and similar heavy construction equipment requirements as the Project. It is expected that each Reach A alternative would result in similar GHG emissions as the Project. Therefore, the impact analysis above for the Project is considered representative for all Reach A alternatives. b) Would the project conflict with an applicable plan, policy or regulation adopted for the purpose of reducing the emissions of greenhouse gases? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-57 April 2014 As previously stated in the Environmental Setting, pursuant to AB 32, CARB prepared and adopted the Climate Change Scoping Plan. The Climate Change Scoping Plan outlines the State’s strategy to achieve the year 2020 GHG emissions limits specified in AB 32. The Climate Change Scoping Plan includes a comprehensive set of actions designed to reduce overall GHG emissions in California. However, CARB has not yet determined what amount of GHG reductions it recommends from local government operations. The Climate Change Scoping Plan states that the ultimate GHG reduction assignment to local government operations is to be determined. The BAAQMD established a Climate Protection Program to reduce pollutants that contribute to global climate change and affect air quality in the SFBAAB. The Climate Protection Program includes measures that promote energy efficiency, reduce vehicle miles traveled, and develop alternative sources of energy all of which assist in reducing emissions of GHG and in reducing air pollutants that affect the health of residents. The BAAQMD also seeks to support current climate protection programs in the region and to stimulate additional efforts through public education and outreach, technical assistance to local governments and other interested parties, and promotion of collaborative efforts among stakeholders. The Project would not conflict with AB 32, BAAQMD’s Climate Protection Program, or other applicable plans, policies, or regulation adopted for the purpose of reducing the emissions of greenhouse gases because the total construction GHG emissions estimated for the Project would be below the BAAQMD significance threshold. Furthermore, the Project would only generate construction-related emissions, which would be temporary and only occur once. The Project would not have an effect on long-term operational emissions. No impacts from conflicts with applicable plans, policies, or regulations are expected. Alternatives Analysis All Reach A alternatives would involve similar hours of construction and similar heavy construction equipment requirements as the Project. It is expected that each Reach A alternative would result in similar GHG emissions as the Project. Therefore, the impact analysis above for the Project is considered representative for all Reach A alternatives. 4.8 Hazards and Hazardous Materials 4.8.1 Environmental Setting A Phase I Environmental Site Assessment (ESA) for Reach A of West Antioch Creek was completed in 2007 (Ninyo & Moore 2007). No hazardous materials were observed within Reach A of West Antioch Creek during the reconnaissance site visit (Ninyo & Moore 2007). A search of environmental databases did not list West Antioch Creek. The Phase I ESA for Reach A found no limitations, evidence, or indication of recognized environmental conditions (RECs) or conditions indicative of releases or threatened releases of hazardous materials on or in the vicinity of Reach A of West Antioch Creek (Ninyo & Moore 2007). A Phase I ESA for 1400 West Tenth Street was completed in 2013 (Weiss Associates 2013). Current uses of 1400 West Tenth Street include automotive maintenance and repair, auto glass replacement, car stereo installation, and remote controlled hobby vehicle sales. Prior uses include potential agricultural activities and an auto dealership. An estimated 83 cubic yards of soil beneath the 1400 West Tenth Street parcel contain residual total petroleum hydrocarbons (TPH) from a leak of waste oil from a 500-gallon underground storage tank (UST) (TPH-diesel greater than 600 parts per million Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-58 Environmental Checklist and Discussion [ppm]). The tank was removed in 1989 and soil and groundwater investigations and remediation were conducted between 1989 and 2003. In 2003, the Regional Water Quality Control Board (RWQCB) had found that hydrocarbons in groundwater were present in the area of the tank excavation, but were not migrating quickly or off- site. TPH-diesel was detected at 270 microgram per liter (ug/L) in a sample collected in 2003, but had not been detected at other times of that same year or in other wells. On May 27, 2005, the RWQCB issued a letter of “no further action”. Waste oil typically contains regulated metals. No metals in the soil or groundwater around the UST were discovered during the investigation (Weiss Associates 2013). While the regulatory agency has closed the UST case, it should be noted that residual petroleum hydrocarbons are present in the soils on the site and constitute a REC. The residual hydrocarbons may also present a risk of vapor intrusion into structures on the site which may warrant additional evaluation depending on future land uses of the site. The original location of the UST was approximately 60 feet from the Project excavation boundary and approximately 18 feet from the staging boundary. Historical use of the site for agricultural activities prior to 1960 creates the potential for the presence of persistent pesticides in site soils. Potential presence of asbestos-containing materials and lead- containing paint were identified in all structures on the property (Weiss Associates 2013). One property in the vicinity was reviewed as a possible source of environmental concern for the Project site. A gasoline and waste oil UST leaked at a nearby Mazzei Pontiac-Cadillac site, and while the site has been remediated and the case was closed, there is some probability of off-site migration of residual contaminants in groundwater (Weiss Associates 2013). 4.8.2 Hazards and Hazardous Materials (VIII.) Environmental Checklist and Discussion a) Would the project create a significant hazard to the public or the environment through the routine transport, use, or disposal of hazardous materials? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The construction phase of the Project may include the transport, storage, and short-term use of petroleum-based fuels, lubricants, and other similar materials. Best Management Practices (BMPs) stipulating proper storage of hazardous materials and vehicle fueling would be implemented during construction as part of the Stormwater Pollution Prevention Plan (SWPPP). All transport, handling, use, and disposal of substances such as petroleum products, paints, and solvents related to the operation and maintenance of the Project would comply with all Federal, State, and local laws regulating the management and use of hazardous materials. Impacts from the transport, use, and disposal of hazardous materials during Project operation and maintenance would be less than significant. The Phase I ESA completed for Reach A of West Antioch Creek (West Tenth Street to Eight Street) found no limitations, evidence, or indication of RECs or conditions indicative of releases or threatened releases of hazardous materials within this reach of the creek (Ninyo & Moore 2007). The Phase I ESA completed for 1400 West Tenth Street noted the presence of residual petroleum hydrocarbons in the soil on the site associated with a former waste oil UST located on the site Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-59 April 2014 (Weiss Associates 2013). The waste oil site was located on the east side of the main building on 1400 West Tenth Street (Figure 9. Former 500 Gallon Waste Oil UST). As previously noted, the waste oil UST was removed in 1989 and soil surrounding the location of the UST was over- excavated to a depth of 12 feet. The excavation was extended beyond the sides of the UST approximately 16.5 feet in the north-south direction and 14 feet in the east-west direction. Soil contamination calculations estimate 12.37 cubic yards of soil with TPH-d greater than 1000 ppm and about 69.93 cubic yards of soil with TPH-d greater than 600 ppm (this includes the soil greater than 1,000 ppm) remain on-site adjacent to and beneath the service building (RWQCB 2004). Hydrocarbons are about 200 ppm in the soils up to 27 feet from the former UST excavation at the farthest point. The 600 ppm soil gradient shows a maximum distance traveled from the tank excavation of less than 20 feet which has occurred over a 14 year period. The lack of mobility is probably due to the clayey native soils surrounding the excavation (RWQCB 2004). On May 27, 2005, the RWQCB issued a letter of “no further action.” While the regulatory agency has closed the UST case, residual petroleum hydrocarbons are present in the soils on the site and constitute a REC (Weiss Associates 2013). Construction of the Project would require the excavation of soils in Reach A to install the pre-cast concrete culverts under West Tenth Street and to shape the new earthen channel. Excavation would also occur along the eastern side of 1400 West Tenth Street, which could potentially disturb soils contaminated with residual petroleum hydrocarbons from the waste oil UST that was previously located on the parcel. The distance from the former waste oil UST to the Project excavation would be approximately 60 feet and the distance from the staging area would be 18 feet. (See Figure 9 Former 500-Gallon Waste Oil UST - 1400 West Tenth Street.). As long as staging area activities do not disturb soil or remove concrete/asphalt, Reach A activities for the Project are not expected to disturb contaminated soil. Impacts to the public and construction workers from exposure to contaminated soils in Reach A would be mitigated to a level that is less than significant with the implementation of Mitigation Measure HM-2. Sediment in Reach B would also be excavated to re-establish the 1993 Project design contours. The previously prepared Phase I ESAs by Ninyo & Moore (2007) and Weiss Associates (2013) did not characterize the soils within Reach B. There is a potential for soils in Reach B to be contaminated by runoff and unknown releases from the surrounding and upstream land uses, which include industrial, commercial, and residential uses. Impacts to the public and construction workers from exposure to unknown contaminated soils within Reach B would be mitigated to a level that is less than significant with the implementation of Mitigation Measures HM-1 and HM-2. Excavated soils would be used as fill and excess soil would be disposed of at Jersey Island, Ironhouse Sanitary District treatment plant site, Keller Canyon Landfill, or other suitable nearby facilities. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-60 Environmental Checklist and Discussion THIS PAGE INTENTIONALLY LEFT BLANK Figure 9. Former 500 Gallon Waste Oil UST, 1400 West Tenth Street West Antioch Creek Channel Improvement Project Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-62 Environmental Checklist and Discussion THIS PAGE INTENTIONALLY LEFT BLANK Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-63 April 2014 Mitigation Measure HM-1 Soil Sampling (Reach B) Soils within Reach B of the West Antioch Creek channel will be sampled in accordance with a Sampling and Analysis Plan to be prepared by a qualified environmental professional in compliance with federal, state and local regulations and industry standards subject to approval by the Regional Water Quality Control Board. Samples will be sent to a qualified lab to be tested for contaminants. If contaminants are not found, the soils may be excavated and re-used on the Project site as fill or may be disposed at a suitable facility. If contaminants are found, a qualified hazardous materials management specialist will be retained to assess the contaminated soil and to manage the excavation, storing, hauling, and disposal of the contaminated materials in compliance with federal, state, and local regulations. HM-2 Avoidance and Minimization Measures for Personnel A. All personnel working on the Project site shall be informed of the possibility that contaminated soil, soil vapor, and/or groundwater may be encountered on the job site. B. If previously unknown contaminated soils are encountered in the field during demolition or grading, ground disturbance activities in the vicinity of the discovery shall cease until a qualified hazardous materials management specialist can assess the potentially hazardous substances and, if necessary, develop appropriate management measures in coordination with the appropriate regulatory agencies. Alternatives Analysis Alternatives 1 or 2 for Reach A would be located in generally the same area as the Project and would require the excavation of soils near 1400 West Tenth Street along the east side of the property, which are known to contain residual petroleum hydrocarbons. Impacts to the public and construction workers from exposure to unknown contaminated soils within Reach A for Alternatives 1 and 2 would be mitigated to a level that is less than significant with the implementation of Mitigation Measure HM-2. Alternatives 4 or 5 would require the excavation of soils at 1400 West Tenth Street along the east side of the property. The excavation of contaminated soils can result in impacts to the public and construction workers from exposure. Impacts to the public and construction workers from exposure to unknown contaminated soils within Reach A would be mitigated to a level that is less than significant with the implementation of Mitigation Measures HM-2 and HM-3. Alternative 4 or 5 would require the demolition of existing buildings on 1400 West Tenth Street. All structures located at 1400 West Tenth Street have the potential to contain asbestos-containing materials and lead-containing paint. Demolition of these buildings would result in additional hazardous material impacts that would not occur with implementation of the preferred alternative (Alternative 3). Implementation of Alternative 4 or 5 may result in impacts to the public and construction workers from exposure to asbestos-containing materials and lead-containing paint. With the implementation of Mitigation Measure HM-4 impacts would be less than significant. Mitigation Measure HM-3 Contaminated Soil from Closed UST Site (Only Reach A Alternatives) Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-64 Environmental Checklist and Discussion If soils in Reach A are to be excavated within 27 feet of the former waste oil underground storage tank (UST), a sampling protocol will be developed by a qualified environmental professional in compliance with federal, state, and local regulations and industry standards. Samples will be sent to a qualified lab to be tested for contaminants. If contaminants are not found, the soils may be excavated and re-used on the Project site as fill or may be disposed at a suitable facility. If contaminants are found, a qualified hazardous materials management specialist will be retained to assess the contaminated soil and to manage the excavation, storing, hauling, and disposal of the contaminated materials in compliance with federal, state, and local regulations. HM-4 Hazardous Materials Survey (Only Reach A Alternatives) Prior to the demolition of buildings or structures located on 1400 West Tenth Street, a survey for building-related hazardous materials will be conducted by qualified and properly certified individuals. Asbestos surveys will be conducted by a California Division of Occupational Safety and Health-certified asbestos consultant or site surveillance technician. Surveys for lead-based/bearing substances and lead-containing surface coatings will be conducted by a California Department of Health Service-certified lead inspector/risk assessor. If present, all recommendations regarding the removal and disposal of hazardous materials in accordance with federal, state, and local regulations will be implemented. b) Would the project create a significant hazard to the public or the environment through reasonably foreseeable upset and accident conditions involving the release of hazardous materials into the environment? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact Some hazardous materials, such as diesel fuel, would be used during construction and herbicides would be used in vegetation maintenance. The potential release of hazardous materials to the environment would be minimized through the implementation of BMPs listed in the SWPPP and permits as discussed in Hydrology and Water Quality (IX.), which includes the preparation of a spill prevention plan. Please see the discussion regarding contaminated soils under a) above. Implementation of Mitigation Measures HM-1 and HM-2 would reduce the potential for significant hazards to the public and construction workers from exposure to contaminated soils or other hazards to a less than significant level. Alternatives Analysis Please see the Alternatives Analysis discussion under a) above. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-65 April 2014 c) Would the project emit hazardous emissions or handle hazardous or acutely hazardous materials, substances, or waste within one- quarter mile of an existing or proposed school? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact Construction, operation and maintenance of the Project would include the use of common hazardous materials, such as diesel fuel, lubricants, and detergents. The handling of these common hazardous materials would be consistent with state and federal regulations. Antioch Charter Academy So Big Co-Op Preschool is located approximately 900 feet to the southeast of the Project site and Antioch High School is located approximately half a mile to the southeast of the Project site. Please see the response to a) above. Impacts related to hazardous emissions or handling of hazardous or acutely hazardous materials, substances, or waste would be less than significant with the implementation of Mitigation Measures HM-1 and HM-2. Alternatives Analysis Please see the Alternatives Analysis discussion under a) above. d) Would the project be located on a site which is included on a list of hazardous materials sites compiled pursuant to Government Code Section 65962.5 and, as a result, would it create a significant hazard to the public or the environment? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact Environmental database searches did not return any listings for West Antioch Creek (Ninyo & Moore 2007). Environmental database searches returned 10 listings for 1400 West Tenth Street (Weiss Associates 2013); it was listed under the Conditionally Exempt Small Quantity Generators, the Facility Index System/Facility Registry System, the Historical Hazardous Waste & Substance Site List, Leaking Underground Storage Tank, the Facility Inventory Database, the Hazardous Substance Storage Container Database, the Contra Costa Country Site List, the Statewide Environmental Evaluation and Planning System, Proposition 65 Records List, and the Facility and Manifest Data Database. As discussed above, an UST of waste oil located at 1400 West Tenth Street was identified in 1989 to have leaked and was excavated and removed. While the RWQCB issued a “no further action” letter, the soils around the former UST location likely contain residual contamination. Impacts to the public and construction workers from potential exposure to contaminated soils would be mitigated to a level that is less than significant with the implementation of Mitigation Measures HM-1 and HM-2. Alternatives Analysis Please see the Alternatives Analysis discussion under a) above. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-66 Environmental Checklist and Discussion e) For a project located within an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project result in a safety hazard for people residing or working in the project area? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project site is not located within an airport land use plan and there are no airports located within two miles of the Project site. The closest airport is the Buchanan Field Airport located approximately 13 miles west of the Project site. Given the distance between the airport and the Project site there would be no safety hazards for people residing or working in the Project area. No impact would occur. Alternatives Analysis The other alternatives are in the same location as the Project and therefore, no impact would occur. f) For a project within the vicinity of a private airstrip, would the project result in a safety hazard for people residing or working in the project area? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact There are no private airstrips within the vicinity of the Project site. No impact would occur. Alternatives Analysis The other alternatives are in the same location as the Project and therefore, no impact would occur. g) Would the project impair implementation of or physically interfere with an adopted emergency response plan or emergency evacuation plan? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact Construction of the Project has the potential to interfere with emergency response access to the areas near the Project site. Operation and maintenance of the Project would not interfere with an adopted emergency response plan. Impacts to emergency access would be less than significant with the implementation of Mitigation Measure T-1. Alternatives Analysis Impacts from the construction of all alternatives would be similar to the impacts discussed above for the Project. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-67 April 2014 h) Would the project expose people or structures to a significant risk of loss, injury or death involving wildland fires, including where wildlands are adjacent to urbanized areas or where residences are intermixed with wildlands? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project is located in a developed area of the City of Antioch; there are no wildlands in the vicinity of the Project. No impacts would occur. Alternatives Analysis All alternatives would be located generally in the same area; therefore, the impact analysis above for the Project would be applicable to all alternatives. 4.9 Hydrology and Water Quality 4.9.1 Environmental Setting Regional Hydrology The Project is geographically situated on the western edge of the Great Valley within the West Side Fans and Alluvial Terraces subsection of California Ecoregions. The West Side Fans and Alluvial Terraces consist of terraces and alluvial fans along the western edge of the San Joaquin Valley, adjacent to the South Coast Ranges which are characterized by a hot and semi-arid to sub-humid climate. The West Side Fans and Alluvial Terraces range in elevation from 0 feet to about 1,500 feet. This ecological subsection is mainly comprised of Quaternary alluvium, and some Plio-Pleistocene sediments. The alluvium is predominantly from sedimentary rock sources in the South Coast Ranges. Most of the soils are well drained; however, some poorly drained soils also occur where calcium carbonates and even sodium can accumulate. For this subsection, the mean annual precipitation ranges from 8 to 16 inches and is almost entirely rainfall. The mean annual temperature is generally between 59° to 62°F, and the mean freeze-free period is from 250 to 275 days (Nomad 2013c). Hydrologically, streams of the West Side Fans and Alluvial Terraces subsection drain into the San Joaquin River/Sacramento-San Joaquin Delta, and all but the largest streams are generally dry during the summer (Nomad 2013c). The Project site is located approximately 0.25 miles south of the San Joaquin River/Sacramento-San Joaquin Delta. The Project is under the jurisdiction of the Central Valley RWQCB, and is part of the Sacramento-San Joaquin Delta watershed (CEPA 2013a, USGS 2000). The Sacramento-San Joaquin River Delta watershed is part of the San Francisco Bay Delta (SFBD) watershed. The SFBD watershed covers over 75,000 square miles and includes the largest estuary on the west coast and the only inland delta in the world. The SFBD watershed extends nearly 500 miles starting in the Cascade Range to the north and ending in the Tehachapi Mountains to the south, and bounded by the Sierra Mountain Range to the east and the Coast Range to the west. Nearly half of the surface water in California starts as rain or snow that falls within the watershed and flows downstream to the Pacific Ocean through the Golden Gate Strait (EPA 2013). Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-68 Environmental Checklist and Discussion The Sacramento- San Joaquin River Delta (Delta) watershed is one of five major areas of the SFBD watershed. The Delta is the area where the Sacramento River and the San Joaquin River converge and is located just east of Suisun Bay where the fresh waters flow to the Pacific Ocean. The Delta used to be a vast plain with seasonal flooding, creating 1,000 square miles of brackish (mixing of fresh salt water) tidal marsh, narrow, branching tidal channels, and freshwater marshes. Due to 19th century European settlement and 20th century water supply, agricultural uses, and urban development, the original habitat of the Delta has been replaced by sub-sea level, levee-protected islands and deep, wide, and armored waterways. The Delta now includes approximately 1,100 miles of levees to protect agricultural areas and residents in small, rural communities and urban areas. The brackish water in the Delta provides essential estuarine habitat for migratory fish like salmon and resident fishes like delta smelt and striped bass (EPA 2013). Site Hydrology and On-Site Drainage The Project is located within the East and West Antioch Creek watersheds. Hydrology on-site can be influenced by many factors, such as precipitation, run-off, geologic stratigraphy, topography, soil permeability, and plant cover. The single hydrologic feature on site is the approximately 0.75 mile stretch of West Antioch Creek. West Antioch Creek is characterized as an intermittent “blueline” stream on the Antioch North and Antioch South USGS 7.5-minute quadrangles. However, it receives local runoff from adjacent development which may contribute to surface water flow all year. During four separate site visits performed by Nomad Ecology on July 8, 2009; February 24, 2010; and March 12 and August 27, 2013; West Antioch Creek contained flowing water (Nomad 2013c). West Antioch Creek originates in the Mount Diablo foothills, more specifically in Black Diamond Mines Regional Park, to the south and drains north into the Sacramento-San Joaquin Delta by flowing north into Antioch Municipal Reservoir, where it continues north and is joined by several tributaries near State Route 4. Markley Creek flows into West Antioch Creek approximately 0.5 mile south of the Project site. West Antioch Creek flows through the Project area and empties into the San Joaquin River/Sacramento-San Joaquin Delta, immediately north of the Project area (Nomad 2013c). The reach of West Antioch Creek within the Project area is highly urbanized. Historically, the creek was discontinuous, but has since been made into a continuous channel with engineered banks, surrounded by mostly impervious surfaces. Moving from the upstream end of the Project to the downstream end, the drainage transitions from an earthen trapezoidal channel near the Contra Costa County Fairgrounds, to a culvert under West Tenth Street, to a concrete-lined drainage covered by wooden planking under the vacant car dealership’s parking lot, to an open concrete-lined ditch, to the improved open earthen/vegetated channel, back to concrete culverts at Fourth Street and open concrete-lined ditch adjacent to the Antioch Historical Society Museum, to an improved open earthen/vegetated channel that continues all the way to the northern end of the Project site just beyond the railroad trestle. In the Project area, West Antioch Creek runs primarily in a north- south alignment; however, the channel has four bends that are almost 90 degree angles. Within the Project area, West Antioch Creek is tidally influenced (Nomad 2013c). According to the RWQCB approved 2008-2010 Clean Water Act, Section 303(d) list, West Antioch Creek is not listed as an impaired water body (CEPA 2013b). The 303(d) list identifies water bodies that do not meet, or are not expected to meet water quality standards. The 2012 list is currently being evaluated by the State and Regional Water Quality Control Boards (CEPA 2013c). Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-69 April 2014 4.9.2 Hydrology and Water Quality (IX.) Environmental Checklist and Discussion a) Would the project violate any water quality standards or waste discharge requirements? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project consists of the construction, operation, and maintenance of channel improvements to the West Antioch Creek Channel. The Project would involve grading and grubbing of vegetation in West Antioch Creek that could potentially cause erosion impacts. During construction, the City’s contractor would implement a SWPPP, listing the BMPs to prevent construction pollutants and products from violating any water quality standards or any waste discharge requirements. These on- site BMPs would reduce stormwater before it discharges into drainages and ultimately into the San Joaquin River/Sacramento-San Joaquin Delta. During operation, the Project would collect, convey, and discharge stormwater runoff emanating from developed areas that may already produce pollutants. The District and the City of Antioch are required to comply with the National Pollutant Discharge Elimination System (NPDES) East Contra Costa Municipal Storm Water Permit (NPDES No. CA83313), which includes the City of Antioch Municipal Separate Storm Sewer System permit (MS4) (RWQCB 2010). In addition, the District and the City of Antioch are required to obtain and comply with the following permits to ensure that the Project would not result in substantial discharges of typical stormwater pollutants; therefore, resulting in a less than significant impact.  NPDES Stormwater Construction General Permit and preparation of a Stormwater Pollution Prevention Plan (SWPPP) - issued by the State Water Resoures Control Board (SWRCB);  Clean Water Act, Section 401 Water Quality Certification – issued by the Central Valley Regional Water Quality Control Board (CVRWQCB);  Clean Water Act, Section 404 Individual Permit – issued by U.S. Army Corps of Engineers- Sacramento District; and  California Fish and Game Code, Section 1602 Streambed Alteration Agreement – issued by the California Department of Fish and Wildlife (CDFW) Alternatives Analysis Impacts from the four alternatives for Reach A on water quality standards or waste discharge requirements would be similar to the impacts discussed above for the Project. Alternative 2, would include the installation of maximum culverts (approximately 700 feet). This alternative would minimize the amount of exposed earth and, therefore, would reduce potential water quality and erosion impacts. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-70 Environmental Checklist and Discussion b) Would the project substantially deplete groundwater supplies or interfere substantially with groundwater recharge such that there would be a net deficit in aquifer volume or a lowering of the local groundwater table level (e.g., the production rate of pre-existing nearby wells would drop to a level which would not support existing land uses or planned uses for which permits have been granted)? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project does not involve the withdrawal of groundwater. The Project would not affect groundwater recharge because it would not increase impervious surfaces in the Project area. The Project would decrease the amount of impervious surfaces by removing a timber ditch covered concrete channel and would replace it with a new earthen channel (Sub-Reach A-2). No impact would occur. Alternatives Analysis The alternatives proposed would not involve the withdrawal of groundwater; therefore, they would not deplete groundwater supplies. Each of the alternatives would include different amounts of impervious surfaces because they each propose different culvert lengths for Reach A. For example Alternative 2 is the maximum culvert option for Reach A and would result in the greatest increase of impervious surfaces when compared to the existing conditions. However, it is expected that groundwater recharge impacts would be minimal because no substantial increase in impervious surfaces would occur from all of the Alternatives compared with the existing conditions. Furthermore, the proposed impervious surfaces (concrete box culverts) would be located adjacent to unpaved areas (earthen channel) where runoff would flow to and ground percolation would continue to occur. No impact would occur. c) Would the project substantially alter the existing drainage pattern of the site or area, including through the alteration of the course of a stream or river, in a manner that would result in substantial erosion or siltation on- or off-site? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project is designed to increase the conveyance capacity of the channel for Reach A and would restore the channel’s design capacity for Reach B. The Project would require grading and earthmoving activities; however, proposed grading would not substantially alter the existing drainage patterns of West Antioch Creek. Urban runoff from the surrounding areas and creek flows originating upstream would continue to drain towards the San Joaquin River/Sacramento-San Joaquin Delta through West Antioch Creek. A SWPPP would be prepared and would include BMPs to minimize potential erosion or siltation from the Project site during and after construction. Impacts from the Project would be less than significant. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-71 April 2014 Alternatives Analysis All Project alternatives are designed to increase the channel’s conveyance capacity for Reach A. All alternatives would require site grading; however, the proposed grading would not substantially alter the existing drainage patterns of the Project site. Urban runoff from surrounding areas and creek flows originating upstream would continue to flow through the channel. A SWPPP, including BMPs to control erosion and siltation, would be implemented for all alternatives. Impacts would be less than significant. d) Would the project substantially alter the existing drainage pattern of the site or area, including through the alteration of the course of a stream or river, or substantially increase the rate or amount of surface runoff in a manner that would result in flooding on- or off-site? Potentially Significant Impact Less than Significant With Mitigation Incorporated Less than Significant Impact No Impact Please see the response to IX c) above. The Project would not substantially alter the existing drainage pattern of the site nor would the drainage patterns in the area be altered in a manner which would result in substantial flooding on-site or off-site as the Project would reduce flood risk to the Project area by increasing the conveyance capacity of the West Antioch Creek channel. A beneficial impact would occur. Alternatives Analysis All Project alternatives are designed to increase the channel’s conveyance capacity for Reach A; thereby reducing the flood risk to the Project area. A beneficial impact would occur from all alternatives. e) Would the project create or contribute runoff water, which would exceed the capacity of existing or planned stormwater drainage systems or provide substantial additional sources of polluted runoff? Potentially Significant Impact Less than Significant With Mitigation Incorporated Less than Significant Impact No Impact The Project would reduce the amount of existing impervious surfaces in the Project site by removing the existing wooden planking segment and concrete channel and paved parking area in Sub-Reach A-2 and replacing it with an earthen channel. No additional runoff would be generated by the Project. The improved West Antioch Creek channel would continue to collect and convey the same or a similar amount of runoff as the existing channel. The conveyance capacity of the existing channel would be increased reducing the risk of flooding in the area. Existing sources of polluted runoff in the Project area include surrounding urban development. No new sources would be created by the Project. A SWPPP, that includes BMPs, would be implemented during construction to prevent pollutants used during construction from entering the stream. A less than significant impact would occur. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-72 Environmental Checklist and Discussion Alternatives Analysis Impacts from Alternatives 4 and 5 for Reach A associated with creating or contributing to runoff water would be the same as the impacts discussed above for the Project. Impacts from Alternative 1 for Reach A would be similar to the impacts discussed above for the Project; however, the box culverts would extend an additional 200 feet, and the new earthen channel would be shorter in length. The installation of additional box culverts would not result in a substantial increase in an impervious surface because they would be partially located in an area with an existing timber covered ditch and concrete channel and a parking area. The capacity of the existing channel would still be increased and would reduce the risk of flooding in the area. The Project would not create or contribute runoff water which would exceed the capacity of the channel. Impacts would be less than significant. Impacts from Alternative 2 for Reach A would be similar to the impacts discussed above for the Project; however, the box culverts would extend an additional 600 feet and no earthen channel would be added to Reach A. This increase in an impervious surface in the Project area would not substantially increase runoff volume. Furthermore, the conveyance capacity for Reach A would be increased thereby allowing the channel to safely convey additional runoff that may be created as a result of the increase of impervious surfaces in the Project area. The Project would not create or contribute runoff water which would exceed the capacity of the channel; therefore, impacts would be less than significant. f) Would the project otherwise substantially degrade water quality? Potentially Significant Impact Less than Significant With Mitigation Incorporated Less than Significant Impact No Impact Please see response to IX. a) above. Incorporation of BMPs identified in a SWPPP, and compliance with conditions set forth in the NPDES MS4 and Construction General permits and Section 401 Water Quality Certification would reduce impacts to less than significant. Alternatives Analysis Water quality impacts from the four alternatives for Reach A would be the same as the impacts discussed above for the Project. Impacts would be less than significant. g) Would the project place housing within a 100- year flood hazard area as mapped on a federal Flood Hazard Boundary or Flood Insurance Rate Map or other flood hazard delineation map? Potentially Significant Impact Less than Significant With Mitigation Incorporated Less than Significant Impact No Impact The Project does not include housing. The Project would remove and relocate an existing apartment’s carport further away from the West Antioch Creek channel. The West Antioch Creek channel is located within a special flood hazard area subject to inundation by a 100-year flood; Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-73 April 2014 however, the Project would increase the channel capacity to reduce flooding in the area resulting in a beneficial impact (FEMA 2009). No impact would occur. Alternatives Analysis Housing is not included in any of the alternatives. Alternatives 2 and 4 would not remove and relocate the parking carport; however, the impact analysis above for the Project would be applicable to all alternatives. No impacts would occur. h) Would the project place within a 100-year flood hazard area structures that would impede or redirect flood flows? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The structures being proposed are channel improvement structures, such as culverts and retaining walls, which would increase the capacity of the channel to reduce flooding in the area. All structures built by the Project would be built in conformance with the California Building Code and would be designed to withstand storm event flows. The improved channel would safely convey 25-year flood event flows through the Project area. A beneficial impact would occur. Alternatives Analysis The impact analysis above for the Project would be applicable to all alternatives. All alternatives are designed to safely convey flood event flows through the Project area. No impacts would occur. i) Would the project expose people or structures to a significant risk of loss, injury or death involving flooding, including flooding as a result of the failure of a levee or dam? Potentially Significant Impact Less than Significant With Mitigation Incorporated Less than Significant Impact No Impact The nearest dam to the Project site is the Contra Loma Reservoir, located approximately 2 miles to the south, and the Antioch Municipal Reservoir, located approximately 2.5 miles to the southeast. The City of Antioch is located below both of these dams. The Bureau of Reclamation Division of Dam Safety conducted a safety analysis of the Contra Loma Reservoir in 1983 and determined that “safe” performance of the dam can be expected under all anticipated dam conditions, including the maximum credible earthquake and probable maximum flood events (City of Antioch 2003). To mitigate the potential flooding hazard related to dam failure the City of Antioch General Plan provides Policy 11.8.2-f which requires the regular review and clarification of emergency evacuation plans in the event of dam failure (City of Antioch 2003). The Project would not increase the risk of loss, injury, or death involving flooding as a result of levee or dam failure because the Project would continue an existing land use. A less than significant impact would occur. Alternatives Analysis The impact analysis above for the Project would be applicable to all alternatives. Impacts would be less than significant. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-74 Environmental Checklist and Discussion j) Would the project be subject to inundation by seiche, tsunami, or mudflow? Potentially Significant Impact Less than Significant With Mitigation Incorporated Less than Significant Impact No Impact The Project is located just south of the Sacramento-San Joaquin River Delta, part of the greater SFBD watershed. Although the Project site is located adjacent to a large body of water, according to tsunami inundation maps for Contra Costa County, the Project site is located outside of the tsunami hazard zone; therefore, the Project site would not be subject to seiche or tsunami (DOC 2013). The Project is not located near a mountainside or hillside; therefore, the Project area would not be subject to mudflows. No impact would occur. Alternatives Analysis Impacts from inundation by seiche, tsunami, or mudflow on the four alternatives for Reach A would be the same as the impacts discussed above for the Project. 4.10 Land Use and Planning 4.10.1 Environmental Setting The Project is located along a 0.79 mile segment of the West Antioch Creek channel, extending from approximately the northern end of the Contra Costa County Fairgrounds property (southwest and southeast corners of West Tenth Street and O Street) downstream to approximately 200 feet north of the BNSF railroad trestle. This segment of West Antioch Creek Channel traverses several City of Antioch General Plan land use and zoning designations (Table 8). Table 8. General Plan Land Use and Zoning Designations Reach General Plan Land Use Designation Zoning Designation A-1 Public/Institutional (Contra Costa County Fairgrounds) Unincorporated Area Not Zoned A-2 Somersville Road Corridor Focus Area: Commercial Neighborhood/Community Commercial District (C-2) B-1 Somersville Road Corridor Focus Area: Commercial Neighborhood/Community Commercial District (C-2) and High Density Residential District (R-20) B-2 Rivertown/Urban Waterfront Focus Area: Business Park Planned Business Center (PBC) B-3 Rivertown/Urban Waterfront Focus Area: Business Park Planned Business Center (PBC) B-4 Rivertown/Urban Waterfront Focus Area: Dow Wetlands Preserve OS – Open Space/Public Use District Source: City of Antioch 2003, 2013a, 2013b Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-75 April 2014 The Somersville Road Corridor Focus Area is located in the western portion of the City (Figure 10. Somersville Rd. Corridor Focus Area). This Focus Area encompasses commercial land uses along Somersville Road from SR-4 north to Fourth Street and commercial land uses south from SR-4. The Somersville Road Corridor Focus Area includes automobile dealerships, the Somersville Towne Center Mall, and other retail businesses (City of Antioch 2003a). Reaches A-2 and B-1 are located in the northern portion of this focus area. The Rivertown/Urban Waterfront Focus Area is located in the northwestern portion of the City (Figure 11. Rivertown/Urban Waterfront Focus Area). Antioch’s downtown, known as Rivertown, is located at the center of this Focus Area. South of Rivertown are older residential areas with a mix of commercial uses. To the west of Rivertown are older heavy industrial uses, a business park, and a large open land area between the San Joaquin River/Sacramento-San Joaquin Delta and the Pittsburg-Antioch Highway encompassing the Dow Wetlands and other vacant lands. Along the eastern edge of the Rivertown/Urban Waterfront Focus Area are heavy industrial uses along the San Joaquin River (City of Antioch 2013a). Reaches B-2, B-3, and B-4 are located north of West Fourth Street within the Business Park land use designation and the Dow Wetlands Preserve in the Rivertown/Urban Waterfront Focus Area. 4.10.2 Land Use and Planning (X.) Environmental Checklist and Discussion a) Would the project physically divide an established community? Potentially Significant Impact Less than Significant With Mitigation Incorporated Less than Significant Impact No Impact The Project is the construction of improvements, operation, and maintenance of a segment of the West Antioch Creek channel, from approximately West Tenth Street north to 200 feet beyond the BNSF railroad trestle. This segment of West Antioch Creek Channel is located within the Somersville Road Corridor Focus Area and the Rivertown/Urban Waterfront Focus Area in the northwestern portion of the City of Antioch. The majority of the proposed improvements and maintenance would be located along the existing footprint of the West Antioch Creek channel. However, improvements within Reach A would require a permanent easement on privately-owned parcels located at 1400 West Tenth Street and 804 O Street. Temporary easements would also be required for the construction of the Project for staging and stockpiling of material, as described in Section 2.0 Project Description. The permanent easement would not physically divide an established community because the West Antioch Creek is an existing channel and the Project would be located generally along the existing alignment of the channel. No impact would occur. Alternatives Analysis All alternatives would generally be located in the same area and would not create a barrier in an existing community; therefore, the impact analysis above for the Project would be applicable to all alternatives. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-76 Environmental Checklist and Discussion THIS PAGE INTENTIONALLY LEFT BLANK Figure 10. Somersville Rd Corridor Focus Area West Antioch Creek Channel Improvement Project Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-78 Environmental Checklist and Discussion THIS PAGE INTENTIONALLY LEFT BLANK Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-79 April 2014 b) Would the project conflict with any applicable land use plan, policy, or regulation of an agency with jurisdiction over the project (including, but not limited to the general plan, specific plan, local coastal program, or zoning ordinance) adopted for the purpose of avoiding or mitigating an environmental effect? Potentially Significant Impact Less than Significant With Mitigation Incorporated Less than Significant Impact No Impact The City of Antioch’s General Plan includes a Public Services and Facilities Element that lists the City’s storm drainage and flood control objective and policies. The City’s objective regarding storm drainage and flood control is to convey all storm water via adequately sized storm drains and channels (City of Antioch 2003). The Project would increase the conveyance capacity of the West Antioch Creek channel, within the Project’s limits, to be able to convey up to the 25-year storm event flows. With West Antioch Creek channel’s improved conveyance capacity the Project area would be less susceptible to flooding when compared to the existing conditions. The proposed improvements would be consistent with the City’s objective regarding drainage and flood control. A beneficial impact would occur. The Project would require permanent easements on privately-owned parcels located at 1400 West Tenth Street and 804 O Street. Approximately 0.8 acre of paved area currently used for parking and access to service bays at 1400 West Tenth Street would be part of the earthen channel proposed for Reach A-2. Approximately 0.02 acre of 804 O Street would be acquired for the earthen channel proposed for Reach A-2 and would require the relocation of a carport. The City of Antioch would acquire the easements needed for the Project in compliance with local and state regulations. No impact would occur. Alternatives Analysis All alternatives are designed to alleviate flooding in the Project area and would be in conformance with the City’s Public Services and Facilities Element; however, they each propose different conveyance designs for Reach A. The different configuration of Reach A requires different permanent easement requirements. Table 2 in Section 2 Project Description of this Initial Study details the property acquisition requirements for each alternative. All alternatives would acquire the necessary easements in compliance with local and state regulations; therefore, the impact analysis above for the Project would be applicable to all alternatives. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-80 Environmental Checklist and Discussion THIS PAGE INTENTIONALLY LEFT BLANK Figure 11. Rivertown/Urban Waterfront Focus Area West Antioch Creek Channel Improvement Project Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-82 Environmental Checklist and Discussion THIS PAGE INTENTIONALLY LEFT BLANK Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-83 April 2014 c) Would the project conflict with any applicable habitat conservation plan or natural community conservation plan? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact Reach A of the Project site is identified as a covered inventory area in the East Contra Costa County HCP/NCCP, the remainder of the Project site (Reach B) is not within the HCP/NCCP (Nomad 2013a). The City would consult with regulatory agencies and obtain the required permits for the remainder of the Project site. Further discussion on HCP/NCCP coverage can be found in Section 4.4 Biological Resources question f) of this Initial Study. No impact would occur. Alternatives Analysis All alternatives would be located generally in the same area; therefore, HCP/NCCP coverage would only apply to Reach A. The impact analysis above for the Project would be applicable to all alternatives. 4.11 Mineral Resources 4.11.1 Environmental Setting Historically, coal and oil were the mineral products produced within and near the City of Antioch. The coal mines were abandoned in the late 1800’s and had been a risk until the ventilation shafts were closed in 1981 and 1982. The Brentwood oil field is southeast of the City of Antioch and within the general plan area; however, 49 of the 52 wells have been plugged and capped (City of Antioch 2003). The nearest oil well is over 3 miles from the project area and this well is plugged (DOC 2014). Currently within Contra Costa County, crushed rock is the most important mineral resource, along with shale, sand and sandstone; the mineral industry is a significant source of employment in the county (CCC 2005). 4.11.2 Mineral Resources (XI.)Environmental Checklist and Discussion a) Would the project result in the loss of availability of a known mineral resource that would be of value to the region and the residents of the state? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact According to the City of Antioch General Plan, there are no known mineral resources present at the Project site and it is not zoned for this activity. No impact would occur. Alternatives Analysis The four alternatives for Reach A are located in the same location as the Project. No impact would occur. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-84 Environmental Checklist and Discussion b) Would the project result in the loss of availability of a locally-important mineral resource recovery site delineated on a local general plan, specific plan or other land use plan? Potentially Significant Impact Less than Significant With Mitigation Incorporated Less than Significant Impact No Impact The Project area is not located within a current or historic locally-important mineral resource recovery site. No Impact would occur. Alternatives Analysis The four alternatives for Reach A are located in the same location as the Project. No impact would occur. 4.12 Noise 4.12.1 Environmental Setting Existing Ambient Noise Environment An environmental noise assessment was completed for the Project by Bollard Acoustical Consultants, Inc. (BAC 2013). The existing ambient noise environment in the immediate Project vicinity is defined primarily by local traffic on West Fourth Street, West Tenth Street, and O Street, as well as from the BNSF railroad tracks and light industrial uses to the north. To generally quantify the existing ambient noise environment in the Project vicinity, short-term ambient noise surveys were conducted at four locations on the Project site on October 4, 2013. All noise measurement sites were located along the West Antioch Creek channel. Site 1 was located near Fourth Street, Site 2 was located near Sixth Street, Site 3 was located near Seventh Street, and Site 4 was located near Ninth Street (BAC 2013). Larson Davis Laboratories (LDL) Model 820 precision integrating sound level meters were used for the ambient noise level measurement surveys. The meters were calibrated before use with an LDL Model CAL200 acoustical calibrator to ensure the accuracy of the measurements. The equipment used meets all specifications of the American National Standards Institute for Type 1 sound level meters (ANSI S1.4). A summary of the noise level measurement results are provided in Table 9. The Table 9 data indicates that the measured ambient noise conditions in the Project vicinity are typical for residential areas affected primarily by local traffic noise sources (BAC 2013). Table 9. Ambient Short-Term Noise Level Measurement Survey Site # Interval # Time Duration Leq, dB Lmax, dB 1 2 1:15 p.m. 15 min 54 68 2 3 1:37 p.m. 15 min 48 58 3 4 1:58 p.m. 15 min 55 66 4 5 2:20 p.m. 15 min 52 68 Notes: dB= decibel, Leq = equivalent sound level, Lmax = maximum sound level Source: BAC 2013 Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-85 April 2014 City of Antioch General Plan Environmental Hazards Element Section 11.6 of the City of Antioch General Plan Environmental Hazards Element contains the City’s noise policies. The following specific policies which pertain to temporary construction are included within the General Plan in Section 11.6.2: i. Ensure that construction activities are regulated as to hours of operation in order to avoid or mitigate noise impacts on adjacent noise-sensitive land uses. j. Require proposed development adjacent to occupied noise sensitive land uses to implement a construction-related noise mitigation plan. This plan would depict the location of construction equipment storage and maintenance areas, and document methods to be employed to minimize noise impacts on adjacent noise sensitive land uses. k. Require that all construction equipment utilize noise reduction features (e.g., mufflers and engine shrouds) that are no less effective than those originally installed by the manufacturer. m. Prior to the issuance of any grading plans, the City shall condition approval of subdivisions and non-residential development adjacent to any developed/occupied noise- sensitive land uses by requiring applicants to submit a construction-related noise mitigation plan to the City for review and approval. The plan should depict the location of construction equipment and how the noise from this equipment will be mitigated during construction of the Project through the use of such methods as:  The construction contractor shall use temporary noise-attenuation fences, where feasible, to reduce construction noise impacts on adjacent noise sensitive land uses.  During all Project site excavation and grading on-site, the construction contractors shall equip all construction equipment, fixed or mobile, with properly operating and maintained mufflers, consistent with manufacturers’ standards. The construction contractor shall place all stationary construction equipment so that emitted noise is directed away from sensitive receptors nearest the Project site.  The construction contractor shall locate equipment staging in areas that will create the greatest distance between construction-related noise sources and noise-sensitive receptors nearest the Project site during all Project construction.  The construction contractor shall limit all construction-related activities that would result in high noise levels to between the hours of 7:00 a.m. and 6:00 p.m. Monday through Friday and 8:00 a.m. to 5:00 p.m. on Saturdays. No construction shall be allowed on Sundays and public holidays. n. The construction-related noise mitigation plan required shall also specify that haul truck deliveries be subject to the same hours specified for construction equipment. Additionally, the plan shall denote any construction traffic haul routes where heavy trucks would exceed 100 daily trips (counting those both to and from the construction site). To the extent feasible, the plan shall denote haul routes that do not pass sensitive Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-86 Environmental Checklist and Discussion land uses or residential dwellings. Lastly, the construction-related noise mitigation plan shall incorporate any other restrictions imposed by the City. City of Antioch Municipal Code: Chapter 17 Disturbing the Peace Section 5-17.04 Heavy Construction Noise a. For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.  HEAVY CONSTRUCTION EQUIPMENT. Equipment used in grading and earth moving, including diesel engine equipped machines used for that purpose, except pickup trucks of one ton or less.  OPERATE. Includes the starting, warming-up, and idling of heavy construction equipment engines or motors. b. It shall be unlawful for any person to operate heavy construction equipment during the hours specified below:  On weekdays prior to 7:00 a.m. and after 6:00 p.m.  On weekdays within 300 feet of occupied dwelling space, prior to 8:00 a.m. and after 5:00 p.m.  On weekends and holidays, prior to 9:00 a.m. and after 5:00 p.m., irrespective of the distance from the occupied dwelling. Section 15-17.05 Construction Activities a. As used in this section, CONSTRUCTION ACTIVITY means the process or manner of constructing, building, refurbishing, remodeling or demolishing a structure, delivering supplies thereto and includes, but is not limited to, hammering, sawing, drilling, and other construction activities when the noise or sound therefrom can be heard beyond the perimeter of the parcel where such work is being performed. The term CONSTRUCTION ACTIVITY also includes the testing of any audible device such as a burglar or fire alarm or loudspeaker. CONSTRUCTION ACTIVITY does not include floor covering installation or painting when done with non-powered equipment. b. It shall be unlawful for any person to be involved in construction activity during the hours specified below:  On weekdays prior to 7:00 a.m. and after 6:00 p.m.  On weekdays within 300 feet of occupied dwellings, prior to 8:00 a.m. and after 5:00 p.m.  On weekends and holidays, prior to 9:00 a.m. and after 5:00 p.m., irrespective of the distance from the occupied dwellings. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-87 April 2014 c. In addition to the penalties provided by this code, authorized employees may issue "Stop Work Orders" when a violation of this section or § 5-17.04 has occurred. If such a Stop Work Order is issued, it shall not be released until the holder of the building permit provides assurance that future violations will not occur. 4.12.2 Noise (XII.) Environmental Checklist and Discussion a) Would the project result in exposure of persons to or generation of noise levels in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies? Potentially Significant Impact Less than Significant With Mitigation Incorporated Less than Significant Impact No Impact The Project would generate changes in ambient noise levels in the immediate Project vicinity from the following sources:  On-site construction equipment used for Project demolition, culvert replacement, roadway reconstruction, and channel desilting;  Off-site heavy truck traffic hauling silt away from the Project area; and  Off-site changes in traffic patterns resulting from construction detours. On-Site Equipment Noise Generation During the construction phases of the Project, noise from construction activities would add to the noise environment in the immediate Project vicinity. Activities involved in typical construction would generate maximum noise levels ranging from 70 to 90 dBA at a distance of 50 feet (BAC 2013). There are existing residences located on both the east and west sides of O Street, a Holiday Lodge Motel on the west side of 1400 West Tenth Street, and businesses at 1400 West Tenth Street which would be exposed to short-term periods of elevated noise exposure during Project construction. The carport at the existing apartment complex located at 804 O Street would be removed and reconstructed on a neighboring parcel to the south. Desilting activities would occur in Reach B-1, within approximately 75-175 feet of the existing apartments located along the west side of O Street. Capacity improvements would occur in Reach A-1 and A-2 approximately 200 feet from the motel located behind 1400 West Tenth Street and the residential area across O Street. During these operations, maximum exterior noise levels in the range of 70-90 dBALmax could occur at those residences. Off-Site Haul Truck Noise Generation The Project would result in the generation of approximately 20 heavy truck trips per day for the hauling of vegetation and soils to and from the Project site. BAC file data for both loaded and empty 20-ton haul trucks indicates that a typical haul truck passing by at 50 feet can be expected to generate an average Sound Exposure Level (SEL) of approximately 80 dBA. Given approximately 20 haul trips in a typical day, it is reasonable to conclude that there would likely be no more than four off-site heavy truck trips in a given hour. Based on four trips in an hour, and a SEL of 80 dBA at 50 feet, the hourly average noise level resulting from those four trips would be 50 dBALeq at a distance of 50 feet (BAC 2013). Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-88 Environmental Checklist and Discussion Noise Generated by Project Detours During construction of Reach A-1 Project demolition, culvert replacement, and roadway reconstruction, West Tenth Street would be subject to temporary access restrictions and/or closure and local traffic would be delayed or detoured around the construction. As part of the Project, a Traffic Management Plan (TMP) (Mitigation Measure T-1) would be prepared which would evaluate detour plans for street/lane closures. It is anticipated that the TMP would develop detour plans which maximize the use of the larger West Fourth Street and L Street corridors, while minimizing cut through traffic on the smaller residential roadways (BAC 2013). The City of Antioch General Plan does not apply specific noise standards to construction activities. However, the City’s noise policies identify practical measures which should be implemented to the extent possible to reduce the potential for adverse public reaction to noise generated during short- term construction projects. The implementation of Mitigation Measure N-1 would reduce this impact to a less than significant level. Mitigation Measure N-1 Noise Best Management Practices A. The construction contractor will develop and implement a construction-related noise mitigation plan. This plan will depict the location of construction equipment storage and maintenance areas, and document methods to be employed to minimize noise impacts on adjacent noise sensitive land uses; in particular the apartment complexes on the west side of O Street in Reach B-1 and the motel to the west of Reach A-2. B. The construction contractor will place all stationary construction equipment so that emitted noise is directed away from sensitive receptors nearest the Project site. During all Project site excavation and grading on-site, the construction contractors will equip all construction equipment, fixed or mobile, with properly operating and maintained mufflers, consistent with manufacturers’ standards. C. The construction contractor will locate equipment staging areas that will create the greatest distance between construction-related noise sources and noise-sensitive receptors nearest the Project site during all Project construction. D. The construction contractor will limit all construction-related activities that would result in high noise levels to comply with the city code between the hours of 7:00 a.m. and 6:00 p.m. Monday through Friday and 8:00 a.m. to 5:00 p.m. on Saturdays Construction-related activities within 300 feet of an occupied dwelling will be limited to the hours of 8:00 a.m. to 5:00 p.m. No construction will be allowed on Sundays and public holidays. E. Haul truck activity will be subject to the same hours specified for construction equipment. F. Project haul routes will be developed in the TMP which will minimize the usage of routes through residential neighborhoods or other sensitive land uses. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-89 April 2014 Alternatives Analysis The potential noise impact associated with all of the alternatives would be similar for the proposed hours of construction and heavy equipment required for construction. However, Alternative 4 and 5 would require building demolition on the west side of the channel nearest the motel at 1400 West Tenth Street. With the implementation of Mitigation Measure N-1, impacts would be less than significant. b) Would the project result in exposure of persons to or generation of excessive groundborne vibration or groundborne noise levels? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact Vibration can be described in terms of acceleration, velocity, or displacement. A common practice is to monitor vibration measures in terms of peak particle velocities (inches/second). Vibration levels for heavy earth-moving equipment range from 0.02 inches/second for a passing bulldozer at 35 feet to 0.005 inches/second for a front-loader at distance of 100 feet. Unless the receiver is very close to the equipment, ground-borne vibration generated by heavy earth-moving equipment is negligible (BAC 2013). The facades of the nearest existing residences/sensitive receptors (apartments along the east side of Reach B-1 and the motel on the west side of Reach A-2) would be more than 50 feet from the proposed construction and desilting activities. As a result, Project-generated vibration levels at those nearest residences are predicted to be below 0.1 inches/second peak particle velocity. Peak particle velocities of 0.1 inches/second or less would be barely to distinctly perceptible (BAC 2013). Because vibrations would be barely perceptible and because construction activities would be temporary and limited to daytime hours this impact is considered less than significant. Alternatives Analysis The potential noise impact associated with each alternative is considered to be similar because proposed hours of construction and heavy equipment required for construction are similar for all alternatives. The analysis for the Project is considered representative of potential impacts for all Reach A alternatives. c) Would the project result in a substantial permanent increase in ambient noise levels in the project vicinity above levels existing without the project? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact Construction of the Project would be temporary; therefore, no permanent increase in ambient noise levels would result. No impact would occur. Alternatives Analysis The potential noise impact associated with each alternative is considered to be similar because Construction of the Project would be temporary; therefore, no permanent increase in ambient noise Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-90 Environmental Checklist and Discussion levels would result. The analysis for the Project is considered representative of potential impacts for all Reach A alternatives. d) Would the project result in a substantial temporary or periodic increase in ambient noise levels in the project vicinity above levels existing without the project? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact Project construction would result in temporary increases in ambient noise levels in the Project vicinity. However, construction would be temporary, limited to daytime hours, and would require implementation of Mitigation Measure N-1 in conformance with the City of Antioch General Plan noise policies. Implementation of Mitigation Measure N-1 would result in a less than significant impact. Alternatives Analysis The potential noise impact associated with each alternative is considered to be similar because proposed hours of construction and heavy equipment required for construction are similar for all alternatives. The analysis for the Project is considered representative of potential impacts for all Reach A alternatives. e) For a project located within an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project expose people residing or working in the project area to excessive noise levels? Potentially Significant Impact Less than Significant With Mitigation Incorporated Less than Significant Impact No Impact The Project is not located within an airport land use plan or within two miles of a public use airport (BAC 2013). No impact would occur. Alternatives Analysis The analysis for the Project is considered representative of potential impacts for all Reach A alternatives. f) For a project within the vicinity of a private airstrip, would the project expose people residing or working in the project area to excessive noise levels? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project is not located in the vicinity of a private use airstrip (BAC 2013). No impact would occur. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-91 April 2014 Alternatives Analysis The analysis for the Project is considered representative of potential impacts for all Reach A alternatives. 4.13 Population and Housing 4.13.1 Environmental Setting The Project is located in the City of Antioch, California. As of 2010, the City of Antioch had a population of 102,372 (Bay Area Census 2013). The Project site is located in two Focus Areas, with a small portion south of West Tenth Street designated as Open Space land use under the City of Antioch’s General Plan (City of Antioch 2013a). The first focus area is the Somersville Road Corridor Focus Area which encompasses commercial land uses. The second focus area is the Rivertown/Urban Waterfront Focus Area which encompasses residential areas with a mix of commercial uses. The closest residence to the Project is an apartment complex approximately 60 feet to the east on the corner of West Tenth Street and O Street. 4.13.2 Population and Housing (XIII.) Environmental Checklist and Discussion a) Would the project induce substantial population growth in an area, either directly (for example, by proposing new homes and businesses) or indirectly (for example, through extension of roads or other infrastructure)? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project would not add additional housing or create permanent jobs that would induce population growth. Any development that may occur would be subject to further review and to the policies of the City of Antioch. No impact would occur. Alternatives Analysis Direct or indirect impacts on population growth in the area from the four alternatives for Reach A would be the same as the impacts discussed above for the preferred alternative. b) Would the project displace substantial numbers of existing housing, necessitating the construction of replacement housing elsewhere? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project would not displace existing housing; it would improve the West Antioch Creek channel and reduce flooding impacts on nearby residences. No impact would occur. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-92 Environmental Checklist and Discussion Alternatives Analysis Impacts for the four alternatives for Reach A would be the same as discussed above for the preferred alternative. c) Would the project displace substantial numbers of people, necessitating the construction of replacement housing elsewhere? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project would not displace people and, thus, would not necessitate the construction of replacement housing elsewhere (see response to XIII. B.) above. No Impact would occur. Alternatives Analysis Impacts for the four alternatives for Reach A would be the same as discussed above for the preferred alternative. 4.14 Public Services 4.14.1 Environmental Setting Police Services The City of Antioch Police Department provides police services to the City of Antioch. The closest police station to the Project site is less than 0.25 miles to the east. Fire Services The Contra Costa County Fire Protection District serves the City of Antioch, along with eight other cities. There are four fire stations located in the City of Antioch, Stations 81, 82, 83, and 88. Station 81 is the closest fire station and is located less than 0.75 miles away from the Project site. Schools School services are provided by the Antioch Unified School District. There are 11 schools within approximately one mile of the Project site; Bridges School, Prospects High Alternative High School, Antioch Charter Academy School, Antioch High School, Fremont Elementary School, Live Oak High School, Antioch Middle School, Marsh Elementary School, Kimball Elementary School, R.A.A.M.P. Charter Academy School, and Mission Elementary School. Parks The City of Antioch provides services to the public parks in the area. The parks within two miles of the Project site are discussed further in Section XV. Recreation below. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-93 April 2014 4.14.2 Public Services (XIV.) Environmental Checklist and Discussion a) Would the project result in substantial adverse physical impacts associated with the provision of new or physically altered governmental facilities, need for new or physically altered governmental facilities, the construction of which could cause significant environmental impacts, in order to maintain acceptable service ratios, response times or other performance objectives for any of the public services:  Fire Protection?  Police Protection?  Schools?  Parks?  Other Public Facilities? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project site does not contain fire or police protection facilities that would need to be altered as a result of the Project. The Project would not increase the demand for fire or police protection and, therefore, no new facilities would need to be developed in order to maintain acceptable service ratios. Fire protection and police protection response times could potentially be affected during construction. Mitigation Measure T-1 would mitigate this impact to a less than significant level. The Project site does not contain school facilities, park facilities, or other public facilities that would need to be altered as a result of the Project. The Project would not affect local school enrollment. The Project would have no impacts to schools, parks, and other public facilities. Alternatives Analysis Impacts on public services and facilities from the four alternatives for Reach A would be the same as the impacts discussed above for the preferred alternative. 4.15 Recreation 4.15.1 Environmental Setting The City of Antioch is located in proximity to a variety of local parks, recreational facilities, regional parks, and open space areas. The City owns and manages 28 local parks and recreational facilities varying in size and amenities, while the East Bay Regional Park District (EBRPD) is responsible for management of regional facilities. Approximately 400 acres of parks and open space areas are located within the City. 200 acres have been developed into recreational facilities and the remaining 200 is pending development or is designated exclusively as open space (City of Antioch 2003). Several recreational facilities exist within a 2-mile radius of the Project area, including the Dow Wetlands Preserve located directly adjacent to the Project site on the north and Contra Costa County Fairgrounds located at the southern terminus of the Project. (City of Antioch 2013b; Contra Costa County Fairgrounds 2010). A list of recreational facilities in the project vicinity is provided below: Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-94 Environmental Checklist and Discussion  Prosserville Park  City Park  The Contra Costa County Fairgrounds - including an agricultural museum, a flea market, a speedway, an RC track, a skate rink, and a paintball park.  Mountaire Park  Mira Vista Park  Contra Loma Park  Canal Park  Gentrytown Park  Village East Park  Gino Marchetti Park  Fairview Park  The Dow Wetlands Preserve 4.15.2 Recreation (XV.)Environmental Checklist and Discussion a) Would the project increase the use of existing neighborhood and regional parks or other recreational facilities such that substantial physical deterioration of the facility would occur or be accelerated? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project would not alter existing neighborhood and regional parks or other recreational facilities or increase population. No impact would occur. Alternatives Analysis Impacts on regional parks or other recreational facilities from the four alternatives for Reach A would be the same as the impacts discussed above for the preferred alternative. b) Does the project include recreational facilities or require the construction or expansion of recreational facilities, which might have an adverse physical effect on the environment? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project does not include recreational facilities nor would it require the construction or expansion of such facilities. No impact would occur. Alternatives Analysis Impacts from the construction or expansion of regional parks or other recreational facilities from the four alternatives for Reach A would be the same as the impacts discussed above for the preferred alternative. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-95 April 2014 4.16 Transportation/Traffic 4.16.1 Environmental Setting The Project is located in the City of Antioch along a segment of West Antioch Creek Channel from approximately the southwest corner of the intersection of West Tenth Street and O Street, downstream to approximately 200 feet north of the BNSF railroad trestle. West Tenth Street provides east-west access in downtown Antioch between Somersville Road and A Street. West of Auto Center Drive (Somersville Road), West Tenth Street becomes the Pittsburg/Antioch Highway, which serves industrial uses and provides a regional roadway connection to west Antioch. West Fourth Street is the main arterial between Somersville Road and G Street. O Street is a local road that extends from the Contra Costa County Fairgrounds, just south of West Tenth Street, north to West Fourth Street. Somersville Road runs north-south in western Antioch on both sides of SR-4 providing access to the Pittsburg-Antioch Highway and Buchanan Road. North of SR-4 Somersville Road is signed as Auto Center Drive. The Project site is located approximately 0.75 miles north of SR-4. SR-4 runs east-west, connecting Antioch with Oakley, Brentwood, Pittsburg, Interstate 680 (I- 680), Martinez, Pinole, and Interstate 80 (I-80) (City of Antioch 2003). See Figure 12 for information on Project area circulation. 4.16.2 Transportation/Traffic (XVI.) Environmental Checklist and Discussion a) Would the project conflict with an applicable plan, ordinance, or policy establishing measures of effectiveness for the performance of the circulation system, taking into account all modes of transportation including mass transit and non-motorized travel and relevant components of the circulation system, including but not limited to intersections, streets, highways, and freeways, pedestrian and bicycle paths, and mass transit? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The City of Antioch’s General Plan Circulation Element provides goals and policies to meet the need for safe and convenient movement of people and goods between land uses at the development intensity anticipated in the Land Use Element (City of Antioch 2003). Improvements to the West Antioch Creek channel would not conflict with the City’s Circulation Element because no modifications to the City’s circulation system would occur. However, temporary impacts to the City’s circulation system may occur during construction from the potential temporary closure or reduced access of West Tenth Street and from traffic generated by construction activities. The closure or access restrictions on West Tenth Street, for up to 11 weeks, from approximately 200 feet west of the West Antioch Creek channel to O Street, would be required to construct the culvert across West Tenth Street. Impacts may occur from the re-routing of traffic through other streets in the Project area or delays during certain construction activities. With the implementation of Mitigation Measure T-1, impacts would be less than significant. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-96 Environmental Checklist and Discussion THIS PAGE INTENTIONALLY LEFT BLANK W 7th StAutoCenter DrL StW 10th St AutoCenter DrSomersville RdW 10th St W 4th St L StB u c h a n a n R d W10thSt BuchananRd W 4th St W 1 8 t h S t Sycamore D r 2nd St 5th St I St5th St Cos t c o Way L StLinden Way MarinaPlzClaudiaCt W1 s t St LilacLnW 6thSt W 8th StN StL o p ez Dr C e n turyBlvd PeppertreeWaySpanos StManzanita WayLemontreeWayMandarin WayTulip DrBanyan WayW 8th St W 7th St W 6th St W 5th St W 7th St W 3rd St DogwoodWayDaisyWayH StPoppy WayIthacaCt Crestview DrW Madill St Loma Ln Catal i neAveW 2nd St W 6th St W 11th St Saint Frances Dr W 14th St W 18th St F it zuren RdDeltaFairBlvdMahog a n y Way WilliamReed DrAster DrW 9th St Verne Rob e r t s C i r G StAvila PlRio Grande Ct Harrogate Way V i l l a g e E a s t P a r k Mon t e r e y DrBaker CtCrow CtCadiz Ln Ga r f i e l d P l Doncaster Dr HayesWay Lawton St Rotherham Dr G StSequoiaDr W 15th St W 16th St W 17th St VistaWayFaria StOStSan JoaquinAve LosAltosWayMinta LnW 12th St San Carlos Dr El Rey StW 19th St AlcalaStL o p e z D rW 13th St Texas St E StDrake St PaloVerdeWayEneaWayF StW 20th St Spartan Way W Tregallas Rd CarmonaWayLucenaWaySan Jose DrW 14th St SevilleCirW 2nd St P u tn a m S t ST4 ST4 BabeRuthBaseball Field Contra CostaCty FairgroundCenturyPlaza CountyEastMall AntiochHighSchool AntiochMiddleSchoolSan Joaquin RiverContraCosta CanalSanJoaquinRiver Figure 12. Project Area Circulation Map Date: 10/24/2013 Base Data: RMC, ESRI StreetMap West Antioch Creek Channel Improvement ProjectLocation: N:\2012\2012-140 West Antioch Creek\MAPS\Transportation\WestAntiochCreek_Circulation.mxd (AA)-aaguirre 10/24/2013 Legend City of Antioch Truck Route Capacity Improvements (1.39 acres) Desilting (9.29 acres) Potential Staging or Stockpiling Areas (14.91 acres) I 0 600 1,200 Scale in Feet Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-98 Environmental Checklist and Discussion THIS PAGE INTENTIONALLY LEFT BLANK Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-99 April 2014 The Project would generate daily construction-related trips from workers driving to and from the Project site; trucks delivering equipment and materials to and from the Project site; and trucks hauling soil and vegetation from the Project site. Local roads that would be used to access the Project site would include West Fourth Street, West Sixth Street, West Tenth Street, Auto Center Drive (Somersville Road), and O Street (Figure 2b. Staging/Stockpiling Areas and Access Points). Trucks delivering equipment and materials and trucks hauling soil and vegetation from the Project site would use Auto Center Drive (Somersville Road), West Fourth Street, and L Street, which are designated truck routes, to access SR-4 and Pittsburg-Antioch Highway. The largest source of construction traffic is expected to be from hauling soil and vegetation from the Project site. Estimated overall truck trips for this activity are shown in Table 10. Table 10. Estimated Truck Trips from Hauling Soil and Vegetation from the Project Site Roundtrip Distance (miles) Total Volume of Soils (CY) Volume of Truck (CY) Number of trips Mileage Reach A (Conveyance Improvements) Keller Canyon (Vegetation)1 14.6 0 20 0 0 Jersey Island (Common Soils)2 31.6 12,500 20 630 19,908 Altamont (Contaminated Soils)3 65.2 1,3754 20 70 4,564 Reach B (Desilting) Keller Canyon (Vegetation) 14.6 7,580 20 380 5,548 Jersey Island (Common Soils) 31.6 28,533 20 1,430 45,188 Altamont (Contaminated Soils) 65.2 3,1704 20 160 10,432 TOTAL MILEAGE 85,640 Notes: CY = Cubic Yards 1. Vegetation could be disposed of at Keller Canyon, Jersey Island, or a nearby composting facility 2. Common soils could be disposed of at Jersey Island, or Keller Canyon Landfill. 3. Contaminated soils to be disposed of at a suitably licensed facility, such as Altamont landfill. 4. Quantity of contaminated soils is to be determined. Preliminary estimate is 10 percent of common soil excavation and is subject to change. It is estimated that approximately ten double transfer dump trucks would be required to conduct approximately 20 trips per day to dispose of soil and decomposed marsh vegetation. Given approximately 20 haul trips in a typical day, there would likely be four off-site heavy truck trips in a given hour. Dump trucks would access SR-4 and Pittsburg-Antioch Highway from Auto Center Drive (Somersville Road), West Fourth Street, and L Street, which are designated truck routes. Construction generated trips would temporarily increase traffic along these designated truck routes. However, given the minimal amount of daily trips generated per hour, impacts to the circulation system in the Project area would be less than significant with the implementation of Mitigation Measure T-1. The operation and maintenance of the Project would include infrequent vehicular trips by maintenance staff. It is not expected that these infrequent operation and maintenance trips would result in a significant increase in traffic in the Project area. Operation and maintenance of the Project would not conflict with the City’s Circulation Element because no substantial traffic would be generated by the Project and no modifications to the City’s circulation system would occur. A less than significant impact would occur. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-100 Environmental Checklist and Discussion Mitigation Measure T-1 Traffic Management Plan The City of Antioch (or its contractor) will prepare a Traffic Management Plan (TMP) to manage site access, temporary access restrictions and/or closure of West Tenth Street, material and equipment delivery, and the hauling of soil and vegetation from the site. The TMP will address, but not be limited to, the following: A. Access to the Project site (for workers, material and equipment delivery, and dump trucks); B. Detour plan for street closures which maximizes the use of the larger streets, such as West Fourth Street and L Street, while minimizing cut-through traffic on the smaller residential streets; C. Traffic control measures at ingress/egress points; D. Number of dump haul trucks to be used; E. Days and hours of haul operation (restrictions during AM and PM peak operating periods); F. Haul operation restrictions during community/county events in the area (e.g. Contra Costa County Fair); G. Frequency of dump trucks entering and leaving the Project site; H. Primary and alternate haul routes to be used to and from the staging areas to the disposal sites; and I. Best Management Practices BMPs to prevent tracking dirt onto City streets, consistent with Mitigation Measure AQ-1. Alternatives Analysis All alternatives would result in temporary traffic impacts from construction, which would end at the completion of construction activities, as described above for the Project. No permanent traffic impacts are anticipated. The impact analysis above for the Project would be applicable for all alternatives. b) Would the project conflict with an applicable congestion management program, including, but not limited to level of service standards and travel demand measures, or other standards established by the county congestion management agency for designated roads or highways? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact See the response to 4.16 a) above. With the implementation of Mitigation Measure T-1 impacts would be less than significant. Alternatives Analysis All alternatives would result in temporary traffic impacts from construction which would end at the completion of construction activities. No permanent traffic impacts are anticipated; therefore, the impact analysis above for the Project would be applicable for all alternatives. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-101 April 2014 c) Would the project result in a change in air traffic patterns, including either an increase in traffic levels or a change in location that results in substantial safety risks? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project site is not located within an airport land use plan and there are no airports located within two miles of the Project site. The closest airport is the Buchanan Field Airport located approximately 13 miles west of the Project site. The Project would not result in a change in air traffic patterns, including an increase in traffic levels or a change in location. No impacts would occur. Alternatives Analysis All alternatives would be located in the same area; therefore, the impact analysis above for the Project would be applicable for all alternatives. d) Would the project substantially increase hazards due to a design feature (e.g., sharp curves or dangerous intersections) or incompatible uses (e.g., farm equipment)? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project would not substantially increase hazards due to a design feature. The proposed improvements to the West Antioch Creek channel would alleviate flooding in the Project area. No impact would occur. Alternatives Analysis All alternatives would be located in the same area and all would be designed to alleviate flooding in the Project area. No alternative would include a design feature that would increase traffic hazards in the Project area. The impact analysis above for the Project would be applicable for all alternatives. e) Would the project result in inadequate emergency access? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact Construction of the Project would require temporary access restrictions and/or closure of West Tenth Street, for up to 11 weeks, from approximately 200 feet west of the West Antioch Creek to O Street. The Project area of West Tenth Street would be demolished and reconstructed in order to replace the four side by side pre-cast concrete box culverts Temporary impacts to emergency access may occur during lane closures. Implementation of Mitigation Measure T-1, would reduce impacts to a less than significant level. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-102 Environmental Checklist and Discussion Construction of the Project would increase the channels capacity to convey up to a 25-year storm event flows. The increase capacity of the channel would reduce the probability of the Project area to flood during storm events resulting in a beneficial impact to emergency access in the Project area during storm events. Alternatives Analysis Each Reach A alternative would require temporary access restrictions and/or closure of West Tenth Street, which could cause temporary impacts to emergency access near the Project area. All Reach A alternatives would include the implementation of Mitigation Measure T-1; therefore, the impact analysis above for the Project would be applicable for all alternatives. f) Would the project conflict with adopted policies, plans, or programs regarding public transit, bicycle, or pedestrian facilities or otherwise decrease the performance or safety of such facilities? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project would not conflict with public transportation programs, plans, or policies. Traffic could increase during construction but would be temporary. Impacts would be less than significant. Alternatives Analysis All alternatives would not conflict with public transportation programs, plans, or policies. The impact analysis above for the Project would be applicable to all alternatives. 4.17 Utilities and Service Systems 4.17.1 Environmental Setting Water Service The Antioch Water Treatment Plants provide water service for the city residents and facilities with 31,274 service connections (City of Antioch, 2013c). The raw water originates from the Sacramento/San Joaquin River Delta and is purchased from the Contra Costa Water District (City of Antioch 2011). The City stores the water in the Municipal Reservoir and then treats it at the Antioch Water Treatment Plants (Plant A or Plant B). According to the City of Antioch General Plan, the city owns and operates 11 storage reservoirs with a total of 21.5 million gallon capacity, six booster stations, and several backup wells. In 2009, Drought Management Regulations and Water Conservation Goals were adopted by the City (City of Antioch 2011). The resulting water conservation program has a conservation coordinator, monitors customer water use, and provides various education and rebate/incentive programs. Wastewater The City of Antioch is responsible for wastewater collection and system maintenance of approximately 300 miles of sewer lines with 28,252 connections (City of Antioch 2013c). The wastewater is conveyed through pump stations to the Delta Diablo Sanitation District. The wastewater treatment plant is located near the border of Antioch and Pittsburg, and also services Bay Point. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-103 April 2014 Solid Waste Curbside garbage, recycling and yard waste recycling service is contracted with Allied Waste. Hazardous waste can be disposed of at the Delta Household Hazardous Waste (HHW) Collection Facility. Curbside collection of motor oil is provided by Allied Waste. In addition, numerous drop off locations for motor oil and paint recycling services are listed on the City of Antioch’s website at http://ci.antioch.ca.us/Environment/SolidWaste.htm. 4.17.2 Utilities and Service Systems (XVII.) Environmental Checklist and Discussion a) Would the project exceed wastewater treatment requirements of the applicable Regional Water Quality Control Board? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project would not produce wastewater. No impact would occur. Alternatives Analysis The four alternatives for Reach A would not produce wastewater. No impact would occur. b) Would the project require or result in the construction of new water or wastewater treatment facilities or expansion of existing facilities, the construction of which could cause significant environmental effects? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project would not require the construction of new water and wastewater connections. No impact would occur. Alternatives Analysis The four alternatives for Reach A would not require the construction of new water and wastewater connections. No impact would occur. c) Would the project require or result in the construction of new stormwater drainage facilities or expansion of existing facilities, the construction of which could cause significant environmental effects? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project does require construction and expansion for improving an existing stormwater drainage facility. The Project would increase permeable surfaces and would improve creek channel flow to decrease the frequency of flood events. The culverts under West Tenth Street would change from Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-104 Environmental Checklist and Discussion two to four culverts, the length of the covered creek channel would decrease from 300 feet to 100 feet, and the concrete lining the drainage would be removed from Reach A-2. As previously described in the Hydrology and Water Quality (IX.) Environmental Checklist Discussion item a), the District and the City of Antioch are required to comply with the NPDES East Contra Costa Municipal Storm Water Permit, and obtain a NPDES Stormwater Construction General Permit, and prepare a SWPPP to ensure that the Project would not result in substantial discharges of typical stormwater pollutants. A less than significant impact would occur. Alternatives Analysis The four alternatives for Reach A would be located in generally the same area. The Project for Reach A would have the same impacts as Alternatives 4 and 5, shortening the enclosed channel from 300 feet to 100 feet and removing the concrete lining from Reach A-2. Alternatives 4 and 5 would result in a less than significant impact. Alternative 1 would have the same length of culvert as the current enclosed condition, so no more or less creek channel would be enclosed. As previously described above, the District and the City of Antioch are required to comply with the NPDES East Contra Costa Municipal Storm Water Permit, obtain a NPDES Stormwater Construction General Permit, and prepare a SWPPP to ensure the Project would not result in substantial discharges of typical stormwater pollutants. Alternative 1 would have a less than significant impact. Alternative 2 would enclose more of the creek channel, extending it from its current 300 feet to 700 feet of culvert. Alternative 2 would result in a less than significant impact with implementation the requirements described above. d) Would the project have sufficient water supplies available to serve the project from existing entitlements and resources, or are new or expanded entitlements needed? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project would not require or need a water supply. No impact would occur. Alternatives Analysis The four alternatives for Reach A (conveyance) would not require or need a water supply. No impact would occur. e) Would the project result in a determination by the wastewater treatment provider, which serves or may serve the project that it has adequate capacity to serve the project’s projected demand in addition to the provider’s existing commitments? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact The Project would not require wastewater service. No impact would occur. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-105 April 2014 Alternatives Analysis The four alternatives for Reach A would not require wastewater service. No impact would occur. f) Would the project be served by a landfill with sufficient permitted capacity to accommodate the project’s solid waste disposal needs? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact A temporary increase in waste would occur during construction related-activities and is not anticipated to affect the permitted capacity of such landfills. The Project would generate solid waste from the replacement and construction of the culverts and removal of the concrete-lined channel in Reach A. Construction waste would be disposed of at a local landfill permitted to accept construction waste. Reach B would also generate solid waste with the desilting/debris removal activity. Clean soil would be disposed of at Jersey Island for use in levee buttress construction, Ironhouse Sanitary District treatment plant site, Keller Canyon Landfill, or another suitable nearby facility. Contaminated soils would be hauled away for disposal at a licensed facility. In addition to sediment, the Project would remove approximately 7,580 cubic yards of decomposed marsh vegetation, which would be disposed of at Jersey Island, Keller Canyon Landfill, or a suitable nearby composting facility. A less than significant impact would occur. Alternatives Analysis Please see the analysis discussion above. The four alternatives for Reach A would not differ from the Project. The Alternatives would result in a less than significant impact. g) Would the project comply with federal, state, and local statutes and regulations related to solid waste? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact Waste generated by the Project would comply with statues and regulations related to solid waste. No impact would occur. Alternatives Analysis The four alternatives for Reach A would comply with statues and regulations related to solid waste. No impact would occur. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-106 Environmental Checklist and Discussion 4.18 Mandatory Findings of Significance 4.18.1 Mandatory Findings of Significance (XVIII.) Environmental Checklist and Discussion a) Does the project have the potential to degrade the quality of the environment, substantially reduce the habitat of a fish or wildlife species, cause a fish or wildlife population to drop below self-sustaining levels, threaten to eliminate a plant or animal community, reduce the number or restrict the range of a rare or endangered plant or animal or eliminate important examples of the major periods of California history or prehistory? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact With mitigation described in this Initial Study, the Project would not have a significant impact on fish and wildlife species or their habitat or eliminate important examples of major periods of California history or prehistory. b) Does the project have impacts that are individually limited, but cumulatively considerable? (“Cumulatively considerable” means that the incremental effects of a project are considerable when viewed in connection with the effects of past projects, the effects of other current projects, and the effects of probable future projects)? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact A list of current and proposed projects that are located in the City of Antioch and within Contra Costa County was compiled using the CEQAnet Database search (CEQAnet 2013) and City of Antioch Planning Division Project Pipeline list (City of Antioch 2013d). Current and proposed projects are summarized in Table 11. Table 11. Current and Proposed Projects in the City of Antioch Project Name Type of Project Project Size Location Highway 160 Levee Seepage Repair Project Infrastructure N/A Highway 160, Sherman Island Levee stations from 870+00 to940+00. Recycled Water System Expansion Project Infrastructure N/A Pittsburg-Antioch Hwy, Loveridge Road, Willow Pass Road, W Fourth Street Northeast Antioch Area Reorganization Public Services and Infrastructure N/A Northeast of the City of Antioch along San Joaquin River near Wilbur Avenue Hillcrest Station Area Specific Plan Amendment Residential, Office, Commercial, Transportation, Open Space N/A Hillcrest Ave, Hwy 4, Hwy 160, Oakley Rd Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Environmental Checklist and Discussion 4-107 April 2014 Project Name Type of Project Project Size Location Line 191 Tributary to East Antioch Creek Crossing ECDA Project Inspection and Repair of Infrastructure 112 Square Feet Unnamed Tributary, City of Antioch Almond Ridge East Tract 7906 Residential development 81 SFD 21 acres Philips Lane Black Diamond Ranch 7487, 8585, 8586 Residential development Unit 1 58 SFD Unit 2 117 SFD Unit 3 105 SFD Somersville Road & James Donlon Bridle Ranch Master Development Plan Residential development Approx. 370 executive SFD 5599 Empire Mine Rd NW corner of Empire Mine Rd & Deer Valley Rd Deer Valley Estates Residential development 136 SFD 37.25 acres Off Deer Valley Rd north of Kaiser Golden Bow Estates 8538 Residential development 12 SFD Off Lexington Hidden Glen 6909, 7505, 8387, 8388 Residential development Unit 1 89 SFD Unit 2 81 SFD Unit 3 111 SFD Unit 4 90 SFD Off Hillcrest at Hidden Glen Mira Vista Hills 6708, 6921 Residential development Unit 13 95 SFD Unit 16 85 SFD Off James Donlon at east of Somersville Monterra (Nelson Ranch) 6893, 8850, 8851 Residential development Unit 1 102 SFD Unit 2 128 SFD Unit 3 130 SFD 145 acres Wild Horse Rd off of Hillcrest Ave. Park Ridge Residential development 525 SFD 171 Acres Canada Valley Rd Aviano Residential development adult community 553 Del Webb 189 acres At the end of Heidorn Ranch Rd Quail Cove Residential development 31 SFD 5.59 acres Prewett Ranch Dr. & Summerfield Dr. Ram Court Residential development Lot 4 0.2143 acres Ram Court Roddy Ranch Residential development 574 SFD +/- 100 multi family Hotel West of Deer Valley Rd, South of Empire Mine Rd Sand Creek Ranch 8640, 8885, 8949 Residential development 8640 69 SFD 8885 42 SFD 8949 52 SFD Off Canada Valley Rd & Lone Tree Way Sand Creek Ranch Rivergate 8640, 8886, 8951 Residential development 8640 28 SFD 8886 30 SFD 8951 156 SFD Off Canada Valley Rd & Lone Tree Way Sierra Vista 7722 Residential development 50 SFD Tabora Gardens Residential development Senior Apartments 85 units Southeast corner of James Donlon & Tabora Dr. 2100 L Street Construct 6,870 sf retail building on vacant land 0.774 acres 2100 L Street AutoZone Building 7,928 SF 0.56 acres Northeast corner of Lone Tree Way and Fairside Way Bank of Agriculture Subdivision of parcel and development of car wash & bank. 2.4 acres Lone Tree Way at Country Hills Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 4-108 Environmental Checklist and Discussion Project Name Type of Project Project Size Location Bluerock Business Center 122,856 sq ft office/retail Blue Rock Dr at Lone Tree Way Buchanan Crossings Shopping Center 102,370 SF shopping center 13.5 acres Buchanan Rd at Somersville Deer Valley Business Park Parcel 1+Bldg N, O, P 16 single user/multi- tenant bldgs. 1800- 7000 SF 6 acres SW Deer Valley at Country Hills Hillcrest Summit 1500 sf retail 35,077 sf office 5 acres Hillcrest Ave & E. Tregallas Holy Cross Cemetery Construct new 10,100 sf Funeral Center 20 acres 2200 E. 18th Street Kaiser Medical Center 500,000 sf hospital 450,000 sf medical offices 6200 Deer Valley Rd Kamps Propane Propane storage and distribution plant 4200 Wilbur Ave Lone Tree Landing 81,690 sf retail center 413,790 sf Lone Tree Way at Hillcrest St Ignatius Church Expansion 12,995 sf expansion of existing church 3351 Contra Loma Blvd WalMart Expansion 33,575 sf expansion with additional parking 4893 Lone Tree Way Source:CEQAnet 2013, City of Antioch 2013d As described in the impact analysis of this Initial Study, potentially significant impacts to air quality, biological resources, cultural resources, hazards and/or hazardous materials, noise, and transportation have been identified and mitigation measures have been proposed to offset any Project specific contribution to cumulative impacts. Current and proposed projects in the Project area would also implement mitigation as necessary. All other impacts from the Project are short- term in nature and associated with construction activities on the Project site and, therefore, would not be cumulatively considerable. No other cumulative impacts were identified. c) Does the project have environmental effects that will cause substantial adverse effects on human beings, either directly or indirectly? Potentially Significant Impact Less than Significant with Mitigation Incorporated Less than Significant Impact No Impact Direct and indirect impacts to human beings would be less than significant with the implementation of mitigation measures listed in this Initial Study. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project List of Preparers 5-1 April 2014 SECTION 5. LIST OF PREPARERS City of Antioch ........................................................................................................ Lead Agency Mindy Gentry, Senior Planner Scott Buenting, Associate Engineer Contra Costa County Public Works .............................................. Supporting/Reviewing Agency Claudia Gemberling, Environmental Services RMC Water and Environment ............................. Project Management/Construction Management Mike Matson, Senior Civil Engineer, Project Manager Phoebe Grow, Civil/Environmental Engineer Chris van Lienden, Project Engineer Steve Bui, Senior Civil Engineer, Principal-In-Charge ECORP Consulting, Inc. ........................... CEQA Documentation/Biological and Cultural Resources Chris Stabenfeldt, AICP, Senior Environmental Planner/Project Manager Brian Mayerle, Senior Biologist Keith Kwan, Senior Biologist Alfredo Aguirre, Associate Environmental Analyst Tamara Gallentine, Environmental Planner Emily Graf, Assistant Environmental Analyst Ann Surdzial, AICP, Director of NEPA and CEQA Services Lisa Westwood, Cultural Resources Manager, R.P.A Stephen Pappas, Staff Archaeologist/Field Director Jeremy Adams, Architectural Historian Marin Meza, Biologist Roger Mason, Director of Cultural Resources Jeffrey Swager, GIS Analyst Brian Fedrow, Technical Editor Wendy Garner, Production KD Anderson & Associates, Inc. ........................................... Air Quality/GHG Emissions Analysis Wayne Shijo, Air Quality Specialist Project Manager Bollard Acoustical Consultants, Inc. ....................................... Environmental Noise Assessment Paul Bollard, INCE, President Mead & Hunt, Inc. ..................................................................... Historic Architectural Evaluation Timothy Smith, Architectural Historian Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 5-2 List of Preparers THIS PAGE INTENTIONALLY LEFT BLANK Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Bibliography 6-1 April 2014 SECTION 6. BIBLIOGRAPHY [BAC] Bollard Acoustical Consultants, Inc. 2013 Environmental Noise Assessment – West Antioch Creek Channel Improvement Project. October 17, 2013. [BAAQMD] Bay Area Air Quality Management District 2014 CEQA Guidelines. Available at: http://www.baaqmd.gov/Divisions/Planning-and- Research/CEQA-GUIDELINES.aspx. Accessed April 18, 2014. Bay Area Census 2013 Bay Area Census – City of Antioch, Contra Costa County. Available at www.bayareacensus.ca.gov/cities/Antioch.htm.Accessed October 3, 2013. [Benson] Benson, A. J. 2013 New Zealand mudsnail sightings distribution. Available at newzealandmudsnaildistribution.aspx. Accessed 10/28/2013. [Calflora] Calflora Database 2013 Calflora Database. Available at http://www.calflora.org/. Accessed November 5, 2013. [Cal-IPC] California Invasive Plant Council 2013 California Invasive Plant Inventory. Available at http://www.cal- ipc.org/ip/inventory/pdf/Inventory2006.pdf. Accessed November 5, 2013. [Caltrans] California Department of Transportation 2013 California Department of Transportation. State Scenic Highways - Contra Costa County. Available at http://www.dot.ca.gov/hq/LandArch/scenic_highways/scenic_hwy.htm.Accessed October 3, 2013. [CDFA] California Department of Food and Agriculture 2005 California Noxious and Invasive Weed Action Plan. Available at http://www.cdfa.ca.gov/plant/ipc/noxweedinfo/pdfs/noxious_weed_plan.pdf. Accessed November 5, 2013. [CDFG] California Department of Fish and Game 2012 Staff Report on Burrowing Owl Mitigation. State of California, Natural Resources Agency, Department of Fish and Game. Sacramento, California. March 7. Available at http://www.dfg.ca.gov/wildlife/nongame/docs/BUOWStaffReport.pdf. Accessed October 9, 2013. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 6-2 Bibliography 2008 California Aquatic Invasive Species Management Plan. State of California, Resource Agency, Department of Fish and Game. Sacramento, California. [CDFW] California Department of Fish and Wildlife 2013 Invasive Species Program, New Zealand Mudsnail. Accessed 10/28/2013. Available at http://www.dfg.ca.gov/invasives/mudsnail/ [CEPA] California Environmental Protection Agency 2013a State and Regional Water Boards.http://www.waterboards.ca.gov/waterboards_map.shtml Accessed September 17. 2013b 2010 California 303(d) List of Water Quality Limited Segments. 2013c The Integrated Report - 303(d) List of Water Quality Limited Segments and 305(b) Surface Water Quality Assessment. http://www.swrcb.ca.gov/rwqcb5/water_issues/tmdl/impaired_waters_list/index.shtml#botto m Accessed October 21. CEQAnet 2013 CEQAnet Database search: City of Antioch. Available at http://www.ceqanet.ca.gov/QueryForm.asp.Accessed October 10, 2013. City of Antioch 2013a City of Antioch Geographic Information Systems (GIS) Interactive Map - Landuse. Available at http://www.ci.antioch.ca.us/CityGov/PublicWorks/GIS/.Accessed September4, 2013. 2013b City of Antioch Public Works Department: Parks Directory. Available at http://www.ci.antioch.ca.us/CityGov/PublicWorks/parks/#.Accessed October 3, 2013. 2013c City of Antioch Public Works Department. Available at http://www.ci.antioch.ca.us/CityGov/PublicWorks/.Accessed October 9, 2013. 2013d City of Antioch Public Works Department, Planning Division: City of Antioch Current Projects- Project Pipeline. Available at http://www.ci.antioch.ca.us/CityGov/CommDev/PlanningDivision/docs/Project-Pipeline.pdf Accessed October 17, 2013. 2011 Final City of Antioch 2010 UWMP. Adopted June 27, 2011. 2003 City of Antioch General Plan. Adopted November 24, 2003. Available at: http://www.ci.antioch.ca.us/citygov/commdev/planningdivision/docs/Antioch_Adopted_Gene ral_Plan.pdf. Access July 10, 2013. [CCC] Contra Costa County 2005 Contra Costa County General Plan 2005-2020.Adopted January 18, 2005. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Bibliography 6-3 April 2014 2013 Contra Costa County Interactive GIS (CCMAP). Available at gismap.ccmap.us/imf’imf.jsp?site=ccmap. Accessed August 29, 2013. Contra Costa County Fairgrounds 2010 Contra Costa County Fairgrounds. Official Website of the Contra Costa County Fairgrounds – Associated Facilities. Available at www.contracostafair.com/index.php?option=com_content&view=article&id=42&itemid=106. Accessed October 3, 2013. [DOC] California Department of Conservation 2010 The California Land Conservation (Williamson) Act Status Report. 2013 Contra Costa County Tsunami Inundation USGS 24K Quads. Available at: http://www.conservation.ca.gov/cgs/geologic_hazards/Tsunami/Inundation_Maps/ContraCos ta/Pages/ContraCosta.aspx. Access March 25, 2014. 2014 California Division of Oil, Gas, and Geothermal Resources Well Finder (DOGGR) Available at: http://maps.conservation.ca.gov/doggr/index.html. Accessed March 25, 2014. [EBCNPS] California Native Plant Society, East Bay Chapter 2013 Rare, Unusual, and Significant Plants of Alameda and Contra Costa Counties. Available at http://ebcnps.org/plant-science/unusual-plants/. Accessed November 5, 2013. [ECORP] ECORP Consulting, Inc. 2013a Cultural Resources Addendum for the West Antioch Creek Channel Improvement Project, Letter report. October 14, 2013. 2013b Paleontological Assessment for the West Antioch Creek Channel Improvement Project. October 18, 2013. [EPA] Environmental Protection Agency 2013 Environmental Protection Agency. San Francisco Bay Delta: About the Watershed. Available at http://www2.epa.gov/sfbay-delta/about-watershed#watershedareas Accessed September 18, 2013. [FEMA] Federal Emergency Management Agency 2009 FEMA Flood Insurance Rate Map. Contra Costa County, California and Incorporated Areas, Panel 139 of 602, Map Number 06013C0139F. Available at www.msc.fema.gov. Accessed October 2, 2013. [HTE] Hultgren – Tillis Engineers 2013 Hultgren – Tillis Engineers. Draft Geotechnical Investigation, West Antioch Creek Channel Improvements, Antioch, California. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project April 2014 6-4 Bibliography [KDA] KD Anderson 2014 Air Quality Study for the West Antioch Creek Channel Improvement Project. April 2014. Ninyo & Moore 2007 Environmental Due Diligence, Phase I Environmental Site Assessment West Antioch Creek Between 10th Street and 8th Street, Antioch California. March 13, 2007. [NOAA] National Oceanic and Atmospheric Administration, National Marine Fisheries Service 1997 Fish Screening Criteria for Anadromous Salmonids. National Marine Fisheries Service, Southwest Region. Available at http://swr.nmfs.noaa.gov/hcd/fishscrn.pdf.Accessed October 9, 2013. [Nomad] Nomad Ecology 2013a Biological Resources Assessment, West Antioch Creek Channel Improvements, City of Antioch, Contra Costa County, California. September 2013. 2013b Botanical Resource Survey Report, West Antioch Creek Channel Improvements, City of Antioch, Contra Costa County, California. October 2013. 2013c Wetland Delineation and Preliminary Jurisdictional Determination, West Antioch Creek Channel Improvements, City of Antioch, Contra Costa County, California. September 2013. 2009 Draft Wetland Delineation and Preliminary Jurisdictional Determination, West Antioch Creek Public Safety Improvement Project, City of Antioch, Contra Costa County, California. Prepare for the Contra Costa County Public Works Department. 2010 Letter addressed to Angela De Paoli Conn, M.S., Senior Project Manager, Regulatory Division, California Delta Branch, U.S. Army Corps of Engineers regarding Additional Information Supporting the Verification of a Jurisdictional Determination for Contra Costa County Department of Public Work’s Drainage Area 55 Box Culvert at 10th Street Project. February 25. [NRCS] Natural Resources Conservation Service 2013 Custom Soil Resource Report for Contra Costa County, California, West Antioch Creek Channel Improvement Project. Created from Web Soil Survey available at http://websoilsurvey.sc.egov.usda.gov/App/HomePage.htm. Accessed September 5, 2013. [RWQCB] Central Valley Region California Regional Water Quality Control Board 2004 Closure Review Al Eames (Antioch Ford) – 1400 West Tenth Street, Antioch, Contra Costa County. Letter from the RWQCB Central Valley Region dated August 25, 2004. 2010 California Regional Water Quality Control Board, Central Valley Region - East Contra Costa County Municipal NPDES Permit. September 23, 2010. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project Bibliography 6-5 April 2014 [USGS] United States Geological Survey 2000 Delta Subsidence in California, The Sinking Heart of the State. Sacramento-San Joaquin Delta. FS-005-00. Weiss Associates 2013 Phase I Environmental Site Assessment Report for 1400 West Tenth Street, Antioch, CA 94509. April 1, 2013. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project List of Appendices 7-1 April 2014 SECTION 7. LIST OF APPENDICES Appendix A – Air Quality/Climate Change Technical Report by KD Anderson October 2013; Revised April 2014 Appendix B – Biological Resources Assessment by Nomad Ecology April 2013; Revised September 2013 Appendix C – Cultural Resources Assessment by ECORP Consulting Inc. October 14, 2013 Appendix D – Noise Assessment by Bollard Acoustical Consultants, Inc. October 17, 2013 Appendix E – Paleontological Assessment by ECORP Consulting Inc. October 28, 2013 Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project APPENDIX A Air Quality/Climate Change Technical Report AIR QUALITY STUDY FOR THE WEST ANTIOCH CREEK CHANNEL IMPROVEMENT PROJECT Prepared for: ECORP Consulting, Inc. Prepared by: KD Anderson & Associates 3853 Taylor Road, Suite G Loomis, CA 95650 916/660-1555 Project #2610-06 October 21, 2013 Air Quality Study i KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 TABLE OF CONTENTS SECTION PAGE EXECUTIVE SUMMARY ....................................................................................................... 1 1 INTRODUCTION ......................................................................................................................... 2 2 PROJECT DESCRIPTION .......................................................................................................... 3 2.1 Project Background ............................................................................................................. 3 2.2 Project Information ............................................................................................................. 4 3 AIR QUALITY STANDARDS AND EXISTING CONDITIONS .......................................... 12 3.1 Air Pollutants and Ambient Standards .............................................................................. 12 3.2 Pollutants of Concern ........................................................................................................ 12 3.3 Air Quality Monitoring ..................................................................................................... 18 3.4 Attainment Designations ................................................................................................... 18 3.5 Emissions Inventory .......................................................................................................... 18 3.6 Regulatory Setting ............................................................................................................. 31 3.7 Climate, Topography, Air Pollution Potential .................................................................. 41 4 SHORT-TERM CONSTRUCTION IMPACTS ....................................................................... 47 4.1 Significance Thresholds .................................................................................................... 47 4.2 Methodology ..................................................................................................................... 49 4.3 Impacts .............................................................................................................................. 51 5 LONG-TERM OPERATIONAL IMPACTS ............................................................................ 57 5.1 Significance Thresholds .................................................................................................... 57 5.2 Methodology ..................................................................................................................... 57 5.3 Impacts .............................................................................................................................. 57 6 LOCAL CARBON MONOXIDE IMPACTS............................................................................ 58 7 TOXIC AIR CONTAMINANTS ................................................................................................ 59 7.1 Significance Thresholds .................................................................................................... 59 7.2 Methodology ..................................................................................................................... 60 7.3 Impacts .............................................................................................................................. 60 Air Quality Study ii KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 TABLE OF CONTENTS SECTION PAGE 8 GLOBAL CLIMATE CHANGE AND GREENHOUSE GAS IMPACTS ............................ 62 8.1 Significance Thresholds .................................................................................................... 62 8.2 Methodology ..................................................................................................................... 63 8.3 Impacts .............................................................................................................................. 64 REFERENCES ............................................................................................................................ 66 TECHNICAL APPENDIX ......................................................................................................... 68 Air Quality Study iii KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 TABLE OF CONTENTS TABLES 1. Ambient Air Quality Standards 2. Ozone and Carbon Monoxide Air Quality Monitoring Results 3. Particulate Matter Air Quality Monitoring Results 4. Air Quality Attainment Status Designations for San Francisco Bay Area Air Basin 5. Contra Costa County Emissions Inventory for 2008 6. Contra Costa County Emissions Forecast for 2020 7. California Greenhouse Gas Inventory for 2000 - 2010 8. California Greenhouse Gas Emissions Forecast for 2008 - 2020 9. 2005 Greenhouse Gas Emissions for Contra Costa County 10. Bay Area Air Quality Management District Significance Thresholds 11. Construction-Related Emissions for Each Sub-Reach and Activity 12. Construction Emissions from Potential Combinations of Sub-Reaches and Activities 13. Construction-Period Greenhouse Gases Emissions FIGURES 1. Vicinity Map 2. Project Staging/Stockpiling Areas and Access Points 3. Reach A Conveyance Improvements 4. Reach B Desilting Extent TECHNICAL APPENDIX Road Construction Emissions Model Output Reports Air Quality Study 1 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 EXECUTIVE SUMMARY This Executive Summary is a brief overview of the analysis presented in this Air Quality Study. It is not intended to be a comprehensive description of the analysis. For more details, the reader is referred to the full description presented in this study. The proposed West Antioch Creek Channel Improvement Project would reduce flood risk in a portion of the City of Antioch, California. The project would involve improvements to West Antioch Creek. This Air Quality Study presents an evaluation of the construction-related and operational impacts of the Proposed Project on the air quality environment. The project would be located within the San Francisco Bay Area Air Basin (SFBAAB). The project site is designated a nonattainment area for both state and federal ozone standards. The project site is in a nonattainment area for federal and state standards for fine particulate matter smaller than 2.5 microns in diameter (PM2.5). The area is designated attainment or unclassified for inhalable particulate matter smaller than 10 microns in diameter (PM10), carbon monoxide (CO), nitrogen dioxide (NO2), and sulfur dioxide (SO2). Implementation of the West Antioch Creek Channel Improvement Project would result in the generation of short-term construction-related air pollutant emissions. With implementation of mitigation measures, the project is considered to have a less than significant impact on construction- related emissions. Air quality impacts due to long-term operation of the project were assessed by evaluating criteria pollutant emissions. Operation of the project is considered to have a less-than-significant impact on criteria pollutant air quality. The project-related effect on CO concentrations was assessed. Because the project would not substantially increase traffic volumes or traffic congestion, the project would not result in a significant impact on CO concentrations. Impacts associated with toxic air contaminants were assessed. These impacts were found to be less than significant. An assessment of the effects of the West Antioch Creek Channel Improvement Project on global climate change was conducted. The project-related change in emissions of greenhouse gases was quantified. The project is determined to have a less-than-significant impact on global climate change. Air Quality Study 2 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 SECTION 1 INTRODUCTION This Air Quality Study has been prepared to assess the air quality impacts of the West Antioch Creek Channel Improvement Project. This study contains information that will be used in the preparation of a California Environmental Quality Act (CEQA) environmental compliance document for this project. The City of Antioch is the CEQA lead agency for the project environmental review. The purpose of this Air Quality Study is to provide documentation of the air quality resources in the project area, and an assessment of the impacts of the project on the air quality environment. This Air Quality Study presents an assessment of the localized air quality impacts of the Proposed Project, the impacts of the project on regional air quality, construction-related impacts of the project, and the impacts on global climate change. Following this Introduction section, this Air Quality Study presents a description of:  the Proposed Project,  air quality standards and existing air quality conditions,  short-term construction-related impacts,  long-term operational impacts,  local CO impacts,  impacts associated with toxic air contaminant emissions, and  impacts on global climate change and greenhouse gases. Air Quality Study 3 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 SECTION 2 PROJECT DESCRIPTION The West Antioch Creek Channel Improvement Project (Proposed Project) is located in the City of Antioch, Contra Costa County (Figure 1). The Proposed Project would reduce flood risk in the project area by increasing the capacity of the West Antioch Creek channel between West Tenth Street and West Eighth Street and re-establishing the 25 year flood protection capacity of the channel downstream of West Eighth Street to the Burlington Northern Santa Fe (BNSF) railroad trestle. 2.1 PROJECT BACKGROUND In 1993, the Contra Costa County Flood Control District completed channel improvements for West Antioch Creek (1993 Project). The 1993 Project improved the conveyance capacity of the West Antioch Creek channel, from approximately 200 feet north of the BNSF railroad crossing upstream to approximately West Eighth Street in the City of Antioch, to convey up to the 25- year storm event flows. The 25-year level of protection was the design conveyance criterion for the 1993 Project. The available funding at the time did not allow channel improvements to extend upstream of West Eighth Street. As a result, a 650-foot segment of undersized channel exists between the southern limits of the 1993 Project upstream (approximately West Eighth Street) to the earthen trapezoidal channel on the Antioch fairgrounds property south of West Tenth Street. This 650-foot segment of West Antioch Creek channel transitions from an earthen trapezoidal channel near the Antioch fairgrounds, to structural plate steel arch culverts under West Tenth Street, then to a 20- to 25-foot wide concrete ditch in the reach of the creek between West Tenth Street and West Eighth Street. This segment of the West Antioch Creek channel has the capacity to convey runoff from an approximately one- to two-year return period storm event. Furthermore, the previously improved channel segment of West Antioch Creek (1993 Project) has significantly diminished capacity due to sediment deposition. As a result, flooding can occur several times a year adjacent to West Antioch Creek near the intersection of West Tenth Street and O Street. Flooding in this area is a public safety concern and results in property and economic damages. Frequent flooding results in numerous road closures several times a year along the creek. Road closures result in the loss of commercial business which has led major businesses to relocate out of the area. The flooding also impacts the City of Antioch’s Public Works maintenance yard. Furthermore, the effort by the City to enforce road closures, fight floodwaters, and to clean up debris after flooding recedes is a drain on the City’s resources and budget. The Proposed Project Air Quality Study 4 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 was developed to increase the capacity of the West Antioch Creek channel to reduce flooding in the area and the impacts that result from it. 2.2 PROJECT INFORMATION The Proposed Project is intended to reduce flooding in the project area. Currently within the project area the West Antioch Creek channel transitions from structural plate steel arch culverts under West Tenth street, to a concrete-lined ditch covered by wooden planking under a parking lot at 1400 West Tenth Street, to an open concrete-lined ditch adjacent to a carport for an apartment building, to an earthen channel that continues north to the BNSF railroad trestle. The Proposed Project would alter two adjacent reaches of the channel. Project work in Reach A (conveyance improvements) would increase the capacity of the conveyance system between West Tenth Street and approximately West Eighth Street. Project work in Reach B (desilting) would desilt the channel from approximately West Eighth Street to approximately 200 feet north of the BNSF railroad trestle to restore design capacity (Figure 2). Either reach can be improved independently from the other or concurrently, but work in both reaches must be conducted to realize improved levels of flood protection. 2.2.1 Reach A – Conveyance Improvements Five alternatives were proposed for Reach A (conveyance). All alternatives would use pre-cast concrete box culverts under West Tenth Street. However, the alternatives differ in the conveyance configuration from West Tenth Street to approximately West Eighth Street. The City of Antioch evaluated all Reach A alternatives based on the following criteria: hydraulics, property acquisition feasibility and cost, permanent property impacts, mitigation potential, permitting feasibility, and construction cost. Of the five alternative evaluated, the City’s preferred alternative is referred to as Alternative 3. Alternative 3 would increase the capacity of the channel to convey the 25-year storm event flows thus reducing flooding in the area, provide a feasible regulatory permitting process, and is the most cost-effective alternative. Therefore, Reach A would implement Alternative 3. This Air Quality Study will evaluate the environmental impacts of implementing Alternative 3. Figure 3 shows features of Alternative 3 in Reach A. 2.2.2 Reach B – Desilting Project work in Reach B (desilting) would include the removal of accumulated sediment from the earthen channel from West Eighth Street downstream to approximately 200 feet north of the BNSF railroad trestle to restore design capacity (Figure 4). Approximately 3,000 linear feet of channel would be desilted. Approximately 30,000 cubic yards of sediment accumulated since the completion of the 1993 Project would be removed from the channel to re-establish the 1993 Project design contours, restoring the design capacity of the channel to convey the 25-year storm event flows. Depending on the characterization of the material that is removed, it would be disposed at Jersey Island for use in levee buttress construction, Ironhouse Sanitary District’s Air Quality Study 5 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Wastewater Treatment Plant, Keller Canyon Landfill or another suitable facility. In addition to sediment, the Proposed Project would remove approximately 7,580 cubic yards of decomposed marsh vegetation, which would be disposed of at Jersey Island, Keller Canyon Landfill, or a suitable nearby composting facility. 2.2.3 Project Implementation The Proposed Project is the implementation of conveyance improvements in Reach A and the desilting of Reach B. These channel reaches have been further divided into sub-reaches based on anticipated construction techniques (Figure 2). Implementation of the Proposed Project is anticipated to include the following steps at each sub-reach. Reach A – Alternative 3. The following is a description of the sub-reaches in Reach A. Sub-Reach A-1 (culvert construction across West Tenth Street). Access to the channel during construction of Sub-Reach A-1 would be from 1400 West Tenth Street (west of the channel) and through the Antioch Fairgrounds (south of West Tenth Street). To construct the culvert across West Tenth Street a cofferdam, sump, and bypass pipe would be installed upstream of the Proposed Project. During culvert construction, summer flows from the channel would be piped downstream to West Eighth Street. Traffic access across West Tenth Street, from approximately 200 feet west of West Antioch Creek to O Street, would be temporarily restricted to through traffic. The existing roadway would then be demolished and the existing steel arch culverts would be removed and replaced with four side by side pre-cast concrete box culverts. Once the culverts are constructed the creek bypass pipe would be relocated through the new pre-cast concrete box culverts. An eight-inch sewer pipe and water connection to the Antioch Fairgrounds would be relocated as a result of construction. A cast-in-place culvert inlet structure would be constructed just south of West Tenth Street. The pre-cast concrete box culverts would then be back-filled and West Tenth Street would be reconstructed, repaved, and reopened for traffic. Sub-Reach A-2 (culvert and/or earthen channel construction from north side of West Tenth Street to West Eighth Street). The bypass piping of summer creek flows from the construction of Sub-Reach A-1 would continue through the construction of Sub-Reach A-2. Access to the channel during construction of Sub-Reach A-2 would be from 1400 West Tenth Street (west of the channel), from West Sixth Street (east of channel), and from the south from within the channel. The existing timber ditch cover, concrete channel, and paved parking at 1400 West Tenth Street would be demolished and removed. Soils would be excavated and a cast-in-place concrete culvert discharge structure would be constructed at the end of the pre-cast concrete box culverts on the north side of West Tenth Air Quality Study 6 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Street. Excavation and shaping of the earthen channel would then occur from the discharge concrete structure downstream to West Eighth Street. Wet or contaminated soils would be stockpiled and aerated adjacent to the project site to remove moisture to a point suitable for hauling off to a disposal site. Rip rap erosion barriers would be installed and the top of bank areas, slopes, and channel bottom would be revegetated. Construction would occur over two to three months. Reach B – Implementation of Desilting. Sub-Reaches B-1, B-2, B-3, and B-4 could be excavated in any order, or concurrently. Excavation could occur concurrent with or in sequence with construction of Reach A. Creek water bypass pumping would be implemented from the cofferdam at the upstream end of Reach A, and pumped to the existing storm drain outfall at the southwest corner of the Antioch Marina, approximately 1,000 feet east of the BNSF railroad trestle. Other bypass methods may be considered. Bypass pumping or gravity conveyance would also be implemented at any drainage inlets to the creek. The following is a description of the sub-reaches in Reach B. Sub-Reach B-1 (West Eighth Street to West Fourth Street). Access to the channel during the desilting of Sub-Reach B-1 would be from West Sixth Street, West Fourth Street, and O Street. Mudcats and excavators would be used to remove accumulated silt from the channel to re-establish the 1993 Project design contours. Wet or contaminated soils would be stockpiled and aerated adjacent to the project site to remove moisture to a point suitable for hauling off to a disposal site. Front end loaders would be used to handle and load the silt into double transfer tractor-trailer rigs for hauling off to a disposal site. Top of bank areas, slopes, and channel bottom would be revegetated. Construction would occur over four months. Sub-Reach B-2 (West Fourth Street to end of concrete channel). Access to the channel during the desilting of Sub-Reach B-2 would be through 1500 West Fourth Street (Antioch Historical Society), 1400 West Fourth Street (north of West Fourth Street), and 1700 West Fourth Street (east side of channel). A cofferdam would be constructed at the BNSF railroad trestle to isolate the work area from the marsh to the north. The work area would then be dewatered by digging a sump and installing dewatering pumps and a conveyance pipeline to the Antioch Marina storm drain outfall or other appropriate outfall location. Mudcats and excavators would then be used to remove accumulated silt and decaying vegetative material from the channel to re-establish the 1993 Project design contours. Wet or contaminated soils would be stockpiled and aerated adjacent to the project site to remove moisture to a point suitable for hauling off to a disposal site. Front end loaders would be used to handle and load the silt into double transfer tractor-trailer rigs for hauling off to a disposal site. Construction would occur over two months. Air Quality Study 7 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Sub-Reach B-3 (End of concrete channel to BNSF Railroad Trestle). Access to the channel during the desilting of Sub-Reach B-3 would be through 1500 West Fourth Street (Antioch Historical Society), 1400 West Fourth Street (north of West Fourth Street), and 1700 West Fourth Street (east side of channel). Mudcats and excavators would then be used to remove accumulated silt and decaying vegetative material from the channel to re-establish the 1993 Project design contours. Wet or contaminated soils would be stockpiled and aerated adjacent to the project site to remove moisture to a point suitable for hauling off to a disposal site. Front end loaders would be used to handle and load the silt into double transfer tractor-trailer rigs for hauling off to a disposal site. Construction would occur over four months. Sub-Reach B-4 (BNSF Railroad Trestle to 200 feet north). Access to the channel during the desilting of Sub-Reach B-4 would be from the north of the BNSF railroad tracks, using the BNSF right-of-way between Sub-Reach B-4 and L Street. A silt/sediment barrier and cofferdam would be installed between the work area and the marsh to north. The work area would then be dewatered by digging a sump and installing dewatering pumps and a conveyance pipeline to the Antioch Marina storm drain outfall or other appropriate outfall. Mudcats and excavators would then be used to remove accumulated silt and decaying vegetative material from the channel to re-establish the 1993 Project design contours. Wet or contaminated soils would be stockpiled and aerated adjacent to the project site to remove moisture to a point suitable for hauling off to a disposal site. Front end loaders would be used to handle and load the silt into double transfer tractor-trailer rigs for hauling off to a disposal site. Construction would occur over three months. 2.2.4 Soil Hauling and Disposal Clean soils would be disposed of at Jersey Island, Ironhouse Sanitary District treatment plant site, Keller Canyon Landfill, or suitable nearby facility. Wet or contaminated soils would be stockpiled and aerated (bulldozers would turn over and aerate soil) adjacent to the project site to remove moisture to a point suitable for hauling off to a disposal site. Soils would be tested and if contaminated would be hauled away for disposal at a suitably licensed facility. Decaying vegetative material would be disposed of at Keller Canyon landfill, Jersey Island, or a suitable nearby facility. 2.2.5 Construction Schedule Construction would occur from 7:30 a.m. to 4:30 p.m. during weekdays with the potential for weekend work. Construction crew size would be 25 people for Reach A and 30 people for Reach B. Air Quality Study 8 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Air Quality Study 9 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Air Quality Study 10 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Air Quality Study 11 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Air Quality Study 12 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 SECTION 3 AIR QUALITY STANDARDS AND EXISTING CONDITIONS The following is a description of ambient air quality standards and existing air quality conditions in the West Antioch Creek Channel Improvement Project study area. 3.1 AIR POLLUTANTS AND AMBIENT STANDARDS Both the U.S. Environmental Protection Agency (EPA) and the California Air Resources Board (ARB) have established ambient air quality standards for common pollutants. These ambient air quality standards indicate levels of contaminants that represent safe levels, to avoid specific adverse health effects associated with each pollutant. The ambient air quality standards cover what are called “criteria” pollutants because the health and other effects of each pollutant are described in criteria documents. The federal and state ambient air quality standards are presented in Table 1. The federal and state ambient standards were developed independently with differing purposes and methods, although both processes attempted to avoid health-related effects. As a result, the federal and state standards differ in some cases. In general, the California state standards are more stringent, as is the case for ozone, PM10, and PM2.5. There are three basic designation categories: nonattainment, attainment, and unclassified. A “nonattainment” designation indicates that the air quality violates an ambient air quality standard. Although a number of areas may be designated as nonattainment for a particular pollutant, the severity of the problem can vary greatly. To identify the severity of the problem and the extent of planning required, nonattainment areas are assigned a classification that is commensurate with the severity of their air quality problem (e.g., moderate, serious, severe). In contrast to nonattainment, an “attainment” designation indicates that the air quality does not violate the established standard. Finally, an “unclassified” designation indicates that there are insufficient data for determining attainment or nonattainment. EPA combines unclassified and attainment into one designation for ozone, CO, PM10 and PM2.5. 3.2 POLLUTANTS OF CONCERN For projects similar to the West Antioch Creek Channel Improvement Project, criteria pollutants that are of greatest concern are ozone, particulate matter, and CO. In addition, this Air Quality Study presents an analysis of the project-related effects on global climate change. Air Quality Study 13 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Table 1. Ambient Air Quality Standards Air Quality Study 14 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Table 1. Ambient Air Quality Standards (Continued) Air Quality Study 15 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 3.2.1 Ozone Prior to 2005, both state and federal standards for ozone were set for a one-hour averaging time. The state ozone standard is 0.09 parts per million (ppm), not to be exceeded. The federal one- hour standard was 0.12 ppm and was not to be exceeded more than three times in any three-year period. A federal eight-hour standard for ozone was issued in July 1997 by Executive Order of the President. The eight-hour ozone standard has been set at a concentration of 0.075 ppm ozone measured over eight hours. As of June 15, 2005, the federal one-hour ozone standard was revoked. In setting the eight-hour ozone standard, EPA concluded that replacing the existing one-hour standard with an eight-hour standard was appropriate to provide adequate and more uniform protection of public health from both short-term (one to three hours) and prolonged (six to eight hours) exposures to ozone. Ozone is not emitted directly into the air, but is formed by a photochemical reaction in the atmosphere. Ozone precursors, which include reactive organic compounds (ROG) and nitrogen oxides (NOx), react in the atmosphere in the presence of sunlight to form ozone. Because photochemical reaction rates depend on the intensity of ultraviolet light and air temperature, ozone is primarily a summer air pollution problem. Ozone is a respiratory irritant and an oxidant that increases susceptibility to respiratory infections and can cause substantial damage to vegetation and other materials. Once formed, ozone remains in the atmosphere for one or two days. It is then eliminated through chemical reaction with plants and by rainout and washout. 3.2.2 Particulate Matter State and federal standards for particulate matter are based on micrograms per cubic meter (μg/m3) for a 24-hour average and as an annual geometric mean. PM10 is sometimes referred to as “inhalable particulate matter” or “respirable particulate matter”. The state standards for PM10 are 50 μg/m3 24-hour average, and 20 μg/m3 annual geometric mean. The federal PM10 standard is a 24-hour average of 150 μg/m3. A federal standard for particulate matter less than 2.5 microns in diameter (PM2.5) was issued in July 1997 by Executive Order of the President. PM2.5 is sometimes referred to as “fine particulate matter”. The PM2.5 standard has been set at a concentration of 15 μg/m3 annually and 35 μg/m3 daily. The federal standards for PM10 are being maintained so that relatively larger, courser particulate matter continues to be regulated. The state PM2.5 standard is an annual average of 12 μg/m3. PM10 and PM2.5 can reach the lungs when inhaled, resulting in health concerns related to respiratory disease. Suspended particulate matter can also affect vision or contribute to eye irritation. PM10 can remain in the atmosphere for up to seven days before removal by gravitational settling, rainout and washout. Air Quality Study 16 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 3.2.3 Carbon Monoxide State and federal CO standards have been set for both one-hour and eight-hour averaging times. The state one-hour standard is 20 ppm by volume, while the federal one-hour standard is 35 ppm. Both state and federal standards are 9 ppm for the eight-hour averaging period. CO is a public health concern because it combines readily with hemoglobin and thus reduces the amount of oxygen transported in the bloodstream. Motor vehicles are the dominant source of CO emissions in most areas. High CO levels develop primarily during winter when periods of light winds combine with the formation of ground level temperature inversions (typically from the evening through early morning). These conditions result in reduced dispersion of vehicle emissions. Motor vehicles also exhibit increased CO emission rates at low air temperatures. 3.2.4 Greenhouse Gases The average surface temperature of the Earth has risen by about one degree Fahrenheit in the past century, with most of that occurring during the past two decades (World Meteorological Organization, 2005). There is evidence that most of the warming over the last 50 years is due to human activities. Human activities, such as energy production and internal combustion vehicles, have increased the amount of climate-changing gases in the atmosphere, which in turn is causing the Earth’s average temperature to rise. Rises in average temperature are leading to changes in climate patterns, shrinking polar ice caps and a rise in sea level, with a host of corresponding impacts to humans and ecosystems. Gases which affect global climate are referred to as greenhouse gases (GHG). Greenhouse gases are atmospheric gases that act as global insulators by reflecting visible light and infrared radiation back to Earth. Some GHG, such as water vapor, carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O), occur naturally and are emitted to the atmosphere through natural processes. Although CO2, CH4, and N2O occur naturally in the atmosphere, human activities have changed their atmospheric concentrations. From 1750 to 2004, concentrations of CO2, CH4, and N2O have increased globally by 35, 143, and 18 percent, respectively. Other greenhouse gases, such as fluorinated gases, are created and emitted solely through human activities. (U.S. Environmental Protection Agency 2006) The principal GHG that enter the atmosphere because of human activities are CO2, CH4, N2O, and fluorinated gases. Carbon dioxide is the gas that is most commonly referenced when discussing climate change because it is the most commonly emitted gas. While some of the less common gases do make up less of the total GHG emitted to the atmosphere, some have more effect per molecule than CO2. Carbon Dioxide. The natural production and absorption of CO2 is achieved through the terrestrial biosphere and the ocean. However, humankind has altered the natural carbon cycle by burning coal, oil, natural gas, and wood. Since the industrial revolution began in the mid-1700s, each of these activities has increased in scale and distribution. Carbon dioxide was the first GHG demonstrated to be increasing in atmospheric concentration, with the first conclusive Air Quality Study 17 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 measurements being made in the last half of the 20th Century. Prior to the industrial revolution, concentrations were fairly stable at 280 ppm. Today, they are around 370 ppm, an increase of well over 30 percent (U.S. Environmental Protection Agency 2006). Left unchecked, the concentration of CO2 in the atmosphere is projected to increase to a minimum of 535 ppm by 2100 as a direct result of anthropogenic (manmade) sources. This could result in an average global temperature rise of at least two degrees Celsius (Intergovernmental Panel on Climate Change 2007). The California Energy Commission (CEC) estimates that CO2 emissions account for 84 percent of California’s anthropogenic GHG emissions, nearly all of which is associated with fossil fuel combustion (California Energy Commission 2005). Methane. Methane is an extremely effective absorber of radiation, though its atmospheric concentration is less than CO2 and its lifetime in the atmosphere is brief (10 – 12 years), compared to some other GHG (such as CO2, N2O, and chlorofluorocarbons). Methane has both natural and anthropogenic sources. Landfills, natural gas distribution systems, agricultural activities, fireplaces and wood stoves, stationary and mobile fuel combustion, and gas and oil production fields categories are the major sources of these emissions (U.S. Environmental Protection Agency 2006). The CEC estimates that CH4 emissions from various sources represent 6.2 percent of California’s total GHG emissions (California Energy Commission 2005). Nitrous Oxide. Concentrations of N2O also began to rise at the beginning of the industrial revolution. Nitrous oxide is produced by microbial processes in soil and water, including those reactions which occur in fertilizers that contain nitrogen. Use of these fertilizers has increased over the last century. Global concentration for N2O in 1998 was 314 parts per billion (ppb), and in addition to agricultural sources for the gas, some industrial processes (fossil fuel fired power plants, nylon production, nitric acid production, and vehicle emissions) also contribute to its atmospheric load (U.S. Environmental Protection Agency 2006). The CEC estimates that N2O emissions from various sources represent 6.6 percent of California’s total GHG emissions (California Energy Commission 2005). Fluorinated Gases. Fluorinated gases, such as hydrofluorocarbons (HFCs), perfluorocarbons (PFCs) and sulfur hexafluoride (SF6), are powerful GHG emissions that are emitted from a variety of industrial processes. Fluorinated gases are occasionally used as substitutes for ozone- depleting substances such as chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), and halons, which have been regulated since the mid-1980s because of their ozone destroying potential. Fluorinated gases are typically emitted in smaller quantities than CO2, CH4, and N2O, but each molecule can have a much greater global warming effect. Therefore, fluorinated gases are sometimes referred to as High Global Warming Potential (GWP) gases (U.S. Environmental Protection Agency 2006). The primary sources of fluorinated gas emissions in the United States include the production of HCFC-22 electrical transmission and distribution systems, semiconductor manufacturing, aluminum production, magnesium production and processing, and substitution for ozone-depleting substances. The CEC estimates that fluorinated gas emissions from various sources represent 3.4 percent of California’s total GHG emissions (California Energy Commission 2005). Air Quality Study 18 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 3.3 AIR QUALITY MONITORING Table 2 presents air quality monitoring data for ozone and CO. Table 3 presents monitoring data for PM10, and PM2.5. Data for the latest available three-year period (2010 through 2012) are presented for the monitoring stations closest to the project site. Table 2 shows recent exceedances of the state and federal ozone air quality standards, and shows no recent exceedances of the state or federal CO standards. Table 3 shows recent exceedances of the state PM10 standard and the federal PM2.5 standard. 3.4 ATTAINMENT DESIGNATIONS The current air quality attainment designations for the SFBAAB are summarized in Table 4. As shown in Table 4, the SFBAAB is designated nonattainment for the state and federal ozone standards. The SFBAAB is designated nonattainment for the state PM10 standard, and unclassifiable for the federal PM10 standard. The air basin is designated nonattainment for both the state and federal PM2.5 standards. The SFBAAB is designated either attainment or unclassified for the remaining federal and state air quality standards. 3.5 EMISSIONS INVENTORY Table 5 presents estimates of emissions currently generated in Contra Costa County. The information presented in Table 5 is divided into emission source categories. Table 6 presents a forecast of emissions expected to be generated in Contra Costa County in the year 2020. Like Table 6, the information presented in Table 6 is divided into emission source categories. For current emissions, shown in Table 5, the major source category that generates the largest amount of ROG, CO, and NOx emissions in Contra Costa County is On-Road Motor Vehicles. For current emissions, the major source category that generates the largest amount of PM10 and PM2.5 emissions in Contra Costa County is Miscellaneous Processes. The largest subcategory within this category is Paved Road Dust. Air Quality Study 19 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Table 2. Ozone and Carbon Monoxide Air Quality Monitoring Results Pollutant Concentration by Year Air Quality Pollutant Type, Station and Measurement Standard 2010 2011 2012 Ozone at Bethel Island Road Monitoring Station Highest 1-Hour Average (parts per million) 0.09 0.106 0.091 0.098 Second Highest 1-Hour Average (parts per million) (State) 0.102 0.091 0.090 Highest 8-Hour Average (parts per million) 0.070 0.086 0.078 0.087 Second Highest 8-Hour Average (parts per million) (State) 0.083 0.077 0.079 Carbon Monoxide at Bethel Island Road Monitoring Station Highest 8-Hour Average (parts per million) 9.0 0.83 0.95 0.89 Second Highest 8-Hour Average (parts per million) (State) 0.79 0.89 0.78 _________________________________________________ Source: California Air Resources Board website: http://www.arb.ca.gov/ Note: Data are for the monitoring station closest to the project site. Air Quality Study 20 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Table 3. Particulate Matter Air Quality Monitoring Results Pollutant Concentration by Year Air Quality Pollutant Type, Station and Measurement Standard 2010 2011 2012 Inhalable Particulate Matter (PM10) at Bethel Island Road Monitoring Station Highest 24-Hour Average (micrograms/cubic meter) 50 69.6 49.5 52.3 Second Highest 24-Hour Average (micrograms/cubic meter) (State) 46.2 45.8 31.4 Annual Average (micrograms/cubic meter) 20 18.7 17.9 14.1 (State) Fine Particulate Matter (PM2.5) at Concord 2975 Treat Boulevard Monitoring Station Highest 24-Hour Average (micrograms/cubic meter) 35 36.4 47.5 32.2 Second Highest 24-Hour Average (micrograms/cubic meter) (Federal) 35.0 39.7 30.0 Annual Average (micrograms/cubic meter)12 7.1 7.9 6.6 (State) _________________________________________________ Source: California Air Resources Board website: http://www.arb.ca.gov/ Note: Data are for monitoring station closest to the project site. Air Quality Study 21 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Table 4. Air Quality Attainment Status Designations for San Francisco Bay Area Air Basin Pollutant State Standards 1 National Standards 2 Ozone Nonattainment (Serious) Nonattainment Carbon Monoxide Attainment Unclassifiable/Attainment Nitrogen Dioxide Attainment Unclassifiable/Attainment Sulfur Dioxide Attainment Attainment Inhalable Particulate Matter (PM10)Nonattainment Unclassifiable Fine Particulate Matter (PM2.5)Nonattainment Nonattainment Sulfates Attainment N/A Lead Attainment N/A Hydrogen Sulfide Unclassified N/A Visibility Reducing Particles Unclassified N/A _______________________ Notes: N/A – not applicable, standard does not exist for the pollutant. Source: Bay Area Air Quality Management District 2012 and Bay Area Air Quality Management District 2013 1 Unclassified: a pollutant is designated unclassified if the data are incomplete and do not support a designation of attainment or nonattainment. Attainment: a pollutant is designated attainment if the state standard for that pollutant was not violated at any site in the area during a 3-year period. Nonattainment: a pollutant is designated nonattainment if there was a least one violation of a state standard for that pollutant in the area. 2 Nonattainment: any area that does not meet (or that contributes to ambient air quality in a nearby area that does not meet) the national primary or secondary ambient air quality standard for the pollutant. Attainment: any area that meets the national primary or secondary ambient air quality standard for the pollutant. Unclassifiable: any area that cannot be classified on the basis of available information as meeting or not meeting the national primary or secondary ambient air quality standard or the pollutant. Air Quality Study 22 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Table 5. Contra Costa County Emissions Inventory for 2008 Inhalable Fine Reactive Particulate Particulate Organic Carbon Nitrogen Matter Matter Emission Category Gases Monoxide Oxides (PM10)(PM2.5) Fuel Combustion Electric Utilities 0.07 1.11 1.05 0.10 0.09 Cogeneration 0.11 1.08 2.02 0.48 0.47 Oil and Gas Production (Combustion)0.00 0.01 0.04 0.00 0.00 Petroleum Refining (Combustion)0.91 5.64 9.97 1.36 1.34 Manufacturing and Industrial 0.01 0.14 0.37 0.01 0.01 Food and Agricultural Processing 0.01 0.04 0.11 0.00 0.00 Service and Commercial 0.60 5.19 4.37 0.98 0.98 Other (Fuel Combustion)0.04 0.15 0.38 0.03 0.03_________________________ Subtotal 1.75 13.36 18.31 2.96 2.92 Waste Disposal Sewage Treatment 0.05 0.01 0.12 0.00 0.00 Landfills 0.34- -- -- -- - Incinerators 0.11 0.14 0.03 0.01 0.01 Soil Remediation 0.01 - - - - 0.00 0.00 Other (Waste Disposal)0.66 - - - - - - - -_________________________ Subtotal 1.17 0.15 0.15 0.01 0.01 Cleaning and Surface Coatings Laundering 0.00- -- -- -- - Degreasing 0.30- -- -- -- - Coatings and Related Process Solvents 1.65 - - - - - - - - Printing 0.33- -- -- -- - Adhesives and Sealants 0.91- -- -- -- - Other (Cleaning and Surface Coating)0.05 - - - - - - - -_________________________ Subtotal 3.24 - - - - - - - - Petroleum Production and Marketing Oil and Gas Production 0.09 - - 0.00 - - - - Petroleum Refining 5.77 0.21 0.60 0.68 0.62 Petroleum Marketing 5.04- -- -- -- - Other (Petroleum Production and Marketing) 0.02 - - - - - - - -_________________________ Subtotal 10.92 0.21 0.60 0.68 0.62 Industrial Processes Chemical 1.11 0.13 0.20 0.34 0.33 Food and Agriculture 0.20 0.24 0.02 0.09 0.05 Mineral Processes 0.37 0.25 1.89 1.00 0.44 Metal Processes 0.04 0.05 0.15 0.04 0.03 Wood and Paper - - - - - - 0.00 0.00 Electronics 0.01 - - - - 0.00 - - Other (Industrial Processes)1.19 0.60 0.07 0.24 0.20_________________________ Subtotal 2.92 1.27 2.33 1.71 1.05 Air Quality Study 23 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Table 5. Contra Costa County Emissions Inventory for 2008 (Continued) Inhalable Fine Reactive Particulate Particulate Organic Carbon Nitrogen Matter Matter Emission Category Gases Monoxide Oxides (PM10)(PM2.5) Solvent Evaporation Consumer Products 6.43 - - - - - - - - Architectural Coatings & Related Process Solvents 3.39 - - - - - - - - Pesticides/Fertilizers 0.13 - - - - - - - - Asphalt Paving / Roofing 0.24 - - - - - - - -_________________________ Subtotal 10.19 - - - - - - - - Miscellaneous Processes Residential Fuel Combustion 2.39 40.69 2.63 5.76 5.55 Farming Operations 0.79 - - - - 1.70 0.90 Construction and Demolition - - - - - - 5.02 0.50 Paved Road Dust - - - - - - 11.83 1.77 Unpaved Road Dust - - - - - - 0.98 0.10 Fugitive Windblown Dust - - - - - - 0.68 0.12 Fires 0.030.450.010.030.03 Managed Burning and Disposal 0.08 1.70 0.07 0.23 0.22 Cooking 0.10 - - - - 0.49 0.30 Other (Miscellaneous Processes)0.01 0.16 0.01 0.13 0.08_________________________ Subtotal 3.40 43.00 2.72 26.85 9.57 On-Road Motor Vehicles Light Duty Vehicles 12.74 126.08 12.32 0.90 0.55 Medium Duty Trucks 0.83 10.60 1.58 0.11 0.07 Heavy Duty Trucks 1.74 12.84 13.44 0.44 0.39 Motorcycles 1.39 13.27 0.36 0.01 0.01 Buses 0.121.152.120.050.04 Motor Homes 0.051.360.210.000.00_________________________ Subtotal 16.87 165.30 30.03 1.51 1.06 Other Mobile Sources Aircraft 0.05 1.16 0.01 0.00 0.00 Trains 0.21 0.57 2.73 0.07 0.06 Ocean Going Vessels 0.15 0.31 3.74 0.50 0.49 Commercial Harbor Craft 0.08 0.32 1.11 0.05 0.04 Recreational Boats 3.50 21.07 1.03 0.17 0.13 Off-Road Recreational Vehicles 0.18 0.88 0.01 0.00 0.00 Off-Road Equipment 5.66 41.28 17.72 1.02 0.92 Farm Equipment 0.140.770.680.040.04 Fuel Storage and Handling 0.68 - - - - - - - -_________________________ Subtotal 10.65 66.36 27.03 1.85 1.68 COUNTY TOTAL 61.09 289.57 81.16 35.60 16.90 Notes: 2008 is the latest inventory available from the California Air Resources Board (CARB). All values are in tons per day. Dashes ( "- -" ) indicate no data are available. The sum of values may not equal total shown due to rounding. Source: CARB website: http://arb.ca.gov Air Quality Study 24 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Table 6. Contra Costa County Emissions Forecast for 2020 Inhalable Fine Reactive Particulate Particulate Organic Carbon Nitrogen Matter Matter Emission Category Gases Monoxide Oxides (PM10)(PM2.5) Fuel Combustion Electric Utilities 0.07 1.27 1.18 0.11 0.11 Cogeneration 0.13 1.21 2.28 0.54 0.54 Oil and Gas Production (Combustion)0.00 0.01 0.04 0.00 0.00 Petroleum Refining (Combustion)1.02 6.43 11.25 1.54 1.51 Manufacturing and Industrial 0.01 0.16 0.41 0.01 0.01 Food and Agricultural Processing 0.00 0.03 0.05 0.00 0.00 Service and Commercial 0.71 6.17 5.17 1.17 1.17 Other (Fuel Combustion)0.02 0.12 0.27 0.03 0.03_________________________ Subtotal 1.96 15.40 20.65 3.40 3.37 Waste Disposal Sewage Treatment 0.05 0.01 0.14 0.00 0.00 Landfills 0.23- -- -- -- - Incinerators 0.11 0.14 0.03 0.01 0.01 Soil Remediation 0.01 - - - - 0.00 0.00 Other (Waste Disposal)0.66 - - - - - - - -_________________________ Subtotal 1.06 0.15 0.17 0.01 0.01 Cleaning and Surface Coatings Laundering 0.00- -- -- -- - Degreasing 0.33- -- -- -- - Coatings and Related Process Solvents 1.87 0.00 0.00 - - - - Printing 0.36 0.00 0.01 - - - - Adhesives and Sealants 0.93- -- -- -- - Other (Cleaning and Surface Coating)0.06 - - - - - - - -_________________________ Subtotal 3.55 0.00 0.01 - - - - Petroleum Production and Marketing Oil and Gas Production 0.10 - - 0.01 - - - - Petroleum Refining 6.88 0.25 0.71 0.81 0.73 Petroleum Marketing 5.62- -- -- -- - Other (Petroleum Production and Marketing) 0.02 - - - - - - - -_________________________ Subtotal 12.62 0.25 0.72 0.81 0.73 Industrial Processes Chemical 1.30 0.15 0.24 0.38 0.37 Food and Agriculture 0.22 0.24 0.02 0.09 0.05 Mineral Processes 0.37 0.26 2.20 1.13 0.51 Metal Processes 0.04 0.06 0.18 0.04 0.04 Wood and Paper - - - - - - 0.00 0.00 Electronics 0.02 - - - - 0.00 - - Other (Industrial Processes)1.37 0.68 0.08 0.26 0.21_________________________ Subtotal 3.32 1.39 2.72 1.90 1.18 Air Quality Study 25 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Table 6. Contra Costa County Emissions Forecast for 2020 (Continued) Inhalable Fine Reactive Particulate Particulate Organic Carbon Nitrogen Matter Matter Emission Category Gases Monoxide Oxides (PM10)(PM2.5) Solvent Evaporation Consumer Products 6.88 - - - - - - - - Architectural Coatings & Related Process Solvents 3.66 - - - - - - - - Pesticides/Fertilizers 0.11 - - - - - - - - Asphalt Paving / Roofing 0.28 - - - - - - - -_________________________ Subtotal 10.93 - - - - - - - - Miscellaneous Processes Residential Fuel Combustion 2.58 44.10 2.82 6.19 5.97 Farming Operations 0.86 - - - - 1.97 1.08 Construction and Demolition - - - - - - 5.79 0.58 Paved Road Dust - - - - - - 14.04 2.11 Unpaved Road Dust - - - - - - 1.07 0.11 Fugitive Windblown Dust - - - - - - 0.59 0.10 Fires 0.030.480.010.030.03 Managed Burning and Disposal 0.08 1.68 0.07 0.23 0.21 Cooking 0.11 - - - - 0.57 0.34 Other (Miscellaneous Processes)0.01 0.20 0.01 0.16 0.10_________________________ Subtotal 3.67 46.46 2.91 30.64 10.63 On-Road Motor Vehicles Light Duty Vehicles 5.82 49.50 4.54 1.10 0.69 Medium Duty Trucks 0.69 6.76 0.76 0.14 0.10 Heavy Duty Trucks 0.79 5.31 5.04 0.20 0.14 Motorcycles 1.208.700.370.010.01 Buses 0.120.931.940.060.05 Motor Homes 0.010.200.100.000.00_________________________ Subtotal 8.63 71.40 12.75 1.51 0.99 Other Mobile Sources Aircraft 0.05 1.32 0.01 0.00 0.00 Trains 0.21 0.69 2.83 0.07 0.06 Ocean Going Vessels 0.15 0.30 3.67 0.48 0.46 Commercial Harbor Craft 0.07 0.50 0.60 0.02 0.02 Recreational Boats 3.35 22.90 1.03 0.32 0.24 Off-Road Recreational Vehicles 0.22 1.14 0.01 0.00 0.00 Off-Road Equipment 3.68 43.89 9.15 0.45 0.40 Farm Equipment 0.050.690.280.010.01 Fuel Storage and Handling 0.38 - - - - - - - -_________________________ Subtotal 8.16 71.43 17.58 1.35 1.19 COUNTY TOTAL 53.90 206.50 57.51 39.65 18.11 Notes: 2020 is the furthest horizon year available from the California Air Resources Board (CARB). All values are in tons per day. Dashes ( "- -" ) indicate no data are available. The sum of values may not equal total shown due to rounding. Source: CARB website: http://arb.ca.gov Air Quality Study 26 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 For 2020 forecasted emissions, shown in Table 6, the major source category expected to generate the largest amount of ROG emissions in Contra Costa County is Petroleum Production and Marketing. The largest subcategory within this category is Petroleum Refining. The major source category expected to generate the largest amount of CO emissions is On-Road Motor Vehicles. The major source category expected to generate the largest amount of NOx emissions in Contra Costa County is Fuel Combustion. The largest subcategory within this category is Petroleum Refining (Combustion). The major source category expected to generate the largest amount of PM10 and PM2.5 emissions is Miscellaneous Processes. The largest subcategory within this category is Paved Road Dust. Table 7 presents estimates of GHG emissions generated in California during the years 2000 through 2010. The data are expressed as “million tonnes of CO2 equivalent” per year. One tonne is sometimes referred to as a “metric ton” and is equal to 2,204.6 pounds. While CO2 is the most common component of GHG, several different compounds are components of overall GHG. The different compounds contribute to climate change with varying intensities. The term “CO2 equivalent” (CO2e) refers to a weighted composite of these several compounds, expressed as the equivalent amount of CO2. Table 7 presents estimates of GHG emissions disaggregated into the following four major source categories:  Transportation,  Electric Power,  Commercial and Residential, and  Industrial. Each major source category is further disaggregated into minor source categories. As shown in Table 7, Transportation and Electric Power are the two larger major source categories of GHG emissions in California. Industrial, and Commercial and Residential activities are relatively smaller sources of GHG emissions. Table 8 presents forecasts of GHG emissions expected to be generated in California during the years 2008 through 2020. Table 9 presents estimates of GHG emissions generated in Contra Costa County in 2005. Energy Use – Commercial/Industrial/Direct Access is the category that generates the largest amount of GHG emissions in Contra Costa County. Air Quality Study 27 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Table 7. California Greenhouse Gas Inventory for 2000 - 2010 Air Quality Study 28 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Table 7. California Greenhouse Gas Inventory for 2000 – 2010 (Continued) Source: California Air Resources Board website http://www.arb.ca.gov Air Quality Study 29 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Table 8. California Greenhouse Gas Emissions Forecast (2008 – 2020) Source: California Air Resources Board website http://www.arb.ca.gov Air Quality Study 30 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Table 9. 2005 Greenhouse Gas Emissions for Contra Costa County Carbon Dioxide Equivalent (CO2e) Emissions Source Metric Tons Percent of Total Contra Costa County Energy Use - Residential 1,587,655 13% Energy Use - Commercial/Industrial/Direct Access 6,030,798 49% Transportation 4,542,073 37% Landfilled Waste 175,378 1% _________ _________ County Total 12,335,904 100% Unincorporated County Area Energy Use - Residential 279,439 6% Energy Use - Commercial/Industrial/Direct Access 3,500,768 73% Transportation 972,754 20% Landfilled Waste 22,335 0% _________ _________ Unincorporated Total 4,775,296 100% Incorporated and Unincorporated Distribution Incorporated Area 7,560,608 61% Unincorporated Area 4,775,296 39% _________ _________ County Total 12,335,904 100% _________________________________ Source: County of Contra Costa 2008. Note: Totals may not equal sum of components due to rounding. Air Quality Study 31 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 3.6 REGULATORY SETTING The following description of regulatory setting is based on material presented in the Bay Area Air Quality Management District (BAAQMD) document California Environmental Quality Act Air Quality Guidelines (Bay Area Air Quality Management District 2012). Air quality within the SFBAAB is regulated by such agencies as the BAAQMD, ARB, and EPA. Each of these agencies develops rules, regulations, policies, and/or goals to attain the goals or directives imposed through legislation. Although the EPA regulations may not be superseded, both state and local regulations may be more stringent. 3.6.1 Federal Air Quality Regulations At the federal level, EPA has been charged with implementing national air quality programs. EPA’s air quality mandates are drawn primarily from the Federal Clean Air Act (FCAA), which was enacted in 1963. The FCAA was amended in 1970, 1977, and 1990. The FCAA required EPA to establish primary and secondary NAAQS, which are shown in Table 1. The FCAA also required each state to prepare an air quality control plan referred to as a State Implementation Plan (SIP). The Federal Clean Air Act Amendments of 1990 (FCAAA) added requirements for states with nonattainment areas to revise their SIPs to incorporate additional control measures to reduce air pollution. The SIP is periodically modified to reflect the latest emissions inventories, planning documents, and rules and regulations of the air basins as reported by their jurisdictional agencies. EPA has responsibility to review all state SIPs to determine conformation to the mandates of the FCAAA and determine if implementation will achieve air quality goals. If the EPA determines a SIP to be inadequate, a Federal Implementation Plan (FIP) may be prepared for the nonattainment area that imposes additional control measures. Failure to submit an approvable SIP or to implement the plan within the mandated timeframe may result in sanctions being applied to transportation funding and stationary air pollution sources in the air basin. 3.6.2 State Air Quality Regulations ARB is the agency responsible for coordination and oversight of state and local air pollution control programs in California and for implementing the California Clean Air Act (CCAA), which was adopted in 1988. The CCAA requires that all air districts in the state endeavor to achieve and maintain the CAAQS by the earliest practical date. The act specifies that districts should focus particular attention on reducing the emissions from transportation and area-wide emission sources, and provides districts with the authority to regulate indirect sources. ARB is primarily responsible for developing and implementing air pollution control plans to achieve and maintain the NAAQS. The ARB is primarily responsibility for statewide pollution sources and produces a major part of the SIP. Local air districts are still relied upon to provide additional strategies for sources under their jurisdiction. The ARB combines these data and submits the completed SIP to EPA. Air Quality Study 32 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Other ARB duties include monitoring air quality (in conjunction with air monitoring networks maintained by air pollution control and air quality management districts), establishing CAAQS (which in many cases are more stringent than the NAAQS), determining and updating area designations and maps, and setting emissions standards for new mobile sources, consumer products, small utility engines, and off-road vehicles. In 1992 and 1993, the ARB requested delegation of authority for the implementation and enforcement of specified New Source Performance Standards (NSPS) and National Emission Standards for Hazardous Air Pollutants (NESHAPS) to the following local agencies: the BAAQMD and the South Coast Air Quality Management Districts (SCAQMD). EPA's review of the State of California's laws, rules, and regulations showed them to be adequate for the implementation and enforcement of these federal standards, and EPA granted the delegations as requested. The California Clean Air Act, Section 39610 (a), directs the ARB to “identify each district in which transported air pollutants from upwind areas outside the district cause or contribute to a violation of the ozone standard and to identify the district of origin of transported pollutants.” The information regarding the transport of air pollutants from one basin to another was to be quantified to assist interrelated basins in the preparation of plans for the attainment of State ambient air quality standards. Numerous studies conducted by the ARB have identified air basins that are impacted by pollutants transported from other air basins (as of 1993). Among the air basins affected by air pollution transport from the SFBAAB are the North Central Coast Air Basin, the Mountain Counties Air Basin, the San Joaquin Valley Air Basin, and the Sacramento Valley Air Basin. The SFBAAB was also identified as an area impacted by the transport of air pollutants from the Sacramento region. 3.6.3 Local Air Quality Regulations The BAAQMD attains and maintains air quality conditions in the SFBAAB through a comprehensive program of planning, regulation, enforcement, technical innovation, and promotion of the understanding of air quality issues. The clean air strategy of the BAAQMD includes the preparation of plans for the attainment of ambient air quality standards, adoption and enforcement of rules and regulations concerning sources of air pollution, and issuance of permits for stationary sources of air pollution. The BAAQMD also inspects stationary sources of air pollution and responds to citizen complaints, monitors ambient air quality and meteorological conditions, and implements programs and regulations required by the FCAA, FCAAA, and the CCAA. California Environmental Quality Act Air Quality Guidelines. In 2009, 2011, and 2012, the BAAQMD released the update to its California Environmental Quality Act Air Quality Guidelines (Bay Area Air Quality Management District 2012). This is an advisory document that provides the lead agency, consultants, and project applicants with uniform procedures for addressing air quality in environmental documents. The handbook contains the following applicable components: Air Quality Study 33 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 1. criteria and thresholds for determining whether a project may have a significant adverse air quality impact; 2. specific procedures and modeling protocols for quantifying and analyzing air quality impacts; 3. methods available to mitigate air quality impacts; and 4. information for use in air quality assessments and environmental documents that will be updated more frequently such as air quality data, regulatory setting, climate, topography. Air Quality Plans. As stated above, the BAAQMD prepares plans to attain ambient air quality standards in the SFBAAB. The BAAQMD prepares ozone attainment plans (OAP) for the national ozone standard and clean air plans (CAP) for the California standard both in coordination with the Metropolitan Transportation Commission and the Association of Bay Area Governments (ABAG). With respect to applicable air quality plans, the BAAQMD prepared the Bay Area 2010 Clean Air Plan (Bay Area Air Quality Management District 2010a) to address nonattainment of the national 1-hour ozone standard in the SFBAAB. The purpose of the 2010 Clean Air Plan is to: 1. update the Bay Area 2005 Ozone Strategy (Bay Area Air Quality Management District 2006) in accordance with the requirements of the California Clean Air Act to implement “all feasible measures” to reduce ozone; 2. consider the impacts of ozone control measures on particulate matter (PM), air toxics, and greenhouse gases in a single, integrated plan; 3. review progress in improving air quality in recent years; and 4. establish emission control measures to be adopted or implemented in the 2009- 2012 timeframe. Similarly, the BAAQMD prepared the 2010 Clean Air Plan to address nonattainment of the CAAQS. 3.6.4 Global Climate Change and Greenhouse Gas Emissions Federal Regulations. The following describes Federal regulations related to global climate change and GHG emissions. Supreme Court Ruling. The EPA is the Federal agency responsible for implementing the FCAA. The U.S. Supreme Court ruled in its decision in Massachusetts et al. v. Environmental Protection Agency et al. ([2007] 549 U.S. Air Quality Study 34 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 05-1120), issued on April 2, 2007, that CO2 is an air pollutant as defined under the FCAA, and that EPA has the authority to regulate emissions of GHGs. In response to the mounting issue of climate change, EPA has taken actions to regulate, monitor, and potentially reduce GHG emissions. Mandatory Greenhouse Gas Reporting Rule. On September 22, 2009, EPA issued a final rule for mandatory reporting of GHGs from large GHG emissions sources in the United States. In general, this national reporting requirement will provide EPA with accurate and timely GHG emissions data from facilities that emit 25,000 metric tons or more of CO2 per year. This publicly available data will allow the reporters to track their own emissions, compare them to similar facilities, and aid in identifying cost effective opportunities to reduce emissions in the future. Reporting is at the facility level, except that certain suppliers of fossil fuels and industrial greenhouse gases along with vehicle and engine manufacturers will report at the corporate level. An estimated 85% of the total U.S. GHG emissions, from approximately 10,000 facilities, are covered by this final rule. Proposed Endangerment and Cause or Contribute Findings for Greenhouse Gases under the Clean Air Act. On April 23, 2009, EPA published their Proposed Endangerment and Cause or Contribute Findings for Greenhouse Gases under the FCCA (Endangerment Finding) in the Federal Register. The Endangerment Finding is based on Section 202(a) of the FCAA, which states that the Administrator (of EPA) should regulate and develop standards for “emission[s] of air pollution from any class of classes of new motor vehicles or new motor vehicle engines, which in [its] judgment cause, or contribute to, air pollution which may reasonably be anticipated to endanger public health or welfare.” The proposed rule addresses Section 202(a) in two distinct findings. The first addresses whether or not the concentrations of the six key GHGs (i.e., CO2, CH4, N2O, HFCs, PFCs, and SF6) in the atmosphere threaten the public health and welfare of current and future generations. The second addresses whether or not the combined emissions of GHGs from new motor vehicles and motor vehicle engines contribute to atmospheric concentrations of GHGs and to the threat of climate change. The Administrator proposed the finding that atmospheric concentrations of GHGs endanger the public health and welfare within the meaning of Section 202(a) of the FCCA. The evidence supporting this finding consists of human activity resulting in “high atmospheric levels” of GHG emissions, which are very likely responsible for increases in average temperatures and other climatic changes. Furthermore, the observed and projected results of climate change (e.g., higher likelihood of heat waves, wild fires, droughts, sea level rise, higher intensity storms) are a threat to the public health and welfare. Therefore, GHGs were found to endanger the public health and welfare of current and future generations. Air Quality Study 35 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 The Administrator also proposed the finding that GHG emissions from new motor vehicles and motor vehicle engines are contributing to air pollution, which is endangering public health and welfare. The proposed finding cites that in 2006, motor vehicles were the second largest contributor to domestic GHG emissions (24 percent of total) behind electricity generation. Furthermore, in 2005, the U.S. was responsible for 18 percent of global GHG emissions. Therefore, GHG emissions from motor vehicles and motor vehicle engines were found to contribute to air pollution that endangers public health and welfare. State Greenhouse Gas Regulations. The following describes State regulations related to global climate change and GHG emissions. Assembly Bill 1493 (2002). In 2002, then-Governor Gray Davis signed Assembly Bill (AB) 1493. AB 1493 requires that ARB develop and adopt, by January 1, 2005, regulations that achieve “the maximum feasible reduction of greenhouse gases emitted by passenger vehicles and light-duty trucks and other vehicles determined by ARB to be vehicles whose primary use is noncommercial personal transportation in the state.” To meet the requirements of AB 1493, in 2004 ARB approved amendments to the California Code of Regulations (CCR) adding GHG emissions standards to California’s existing standards for motor vehicle emissions. Amendments to CCR Title 13, Sections 1900 and 1961 (13 CCR 1900, 1961), and adoption of Section 1961.1 (13 CCR 1961.1) require automobile manufacturers to meet fleet-average GHG emissions limits for all passenger cars, light-duty trucks within various weight criteria, and medium-duty passenger vehicle weight classes (i.e., any medium-duty vehicle with a gross vehicle weight rating less than 10,000 pounds that is designed primarily for the transportation of persons), beginning with the 2009 model year. For passenger cars and light-duty trucks with a loaded vehicle weight (LVW) of 3,750 pounds or less, the GHG emission limits for the 2016 model year are approximately 37percent lower than the limits for the first year of the regulations, the 2009 model year. For light-duty trucks with LVW of 3,751 pounds to gross vehicle weight (GVW) of 8,500 pounds, as well as medium-duty passenger vehicles, GHG emissions would be reduced approximately 24 percent between 2009 and 2016. In December 2004, a group of car dealerships, automobile manufacturers, and trade groups representing automobile manufacturers filed suit against ARB to prevent enforcement of 13 CCR Sections 1900 and 1961 as amended by AB 1493 and 13 CCR 1961.1 (Central Valley Chrysler-Jeep et al. v. Catherine E. Witherspoon, in Her Official Capacity as Executive Director of the California Air Resources Board, et al.). The auto-makers’ suit in the U.S. District Court for the Eastern District of California, contended California’s implementation of regulations that, in effect, regulate vehicle fuel economy violates various federal laws, regulations, and policies. Air Quality Study 36 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 On December 12, 2007, the Court found that if California receives appropriate authorization from EPA (the last remaining factor in enforcing the standard), these regulations would be consistent with and have the force of federal law, thus, rejecting the automakers’ claim. This authorization to implement more stringent standards in California was requested in the form of a FCAA Section 209, subsection (b) waiver in 2005. Since that time, EPA failed to act on granting California authorization to implement the standards. Governor Schwarzenegger and Attorney General Edmund G. Brown filed suit against EPA for the delay. In December 2007, EPA Administrator Stephen Johnson denied California’s request for the waiver to implement AB 1493. Johnson cited the need for a national approach to reducing GHG emissions, the lack of a “need to meet compelling and extraordinary conditions”, and the emissions reductions that would be achieved through the Energy Independence and Security Act of 2007 as the reasoning for the denial. The state of California filed suit against EPA for its decision to deny the FCAA waiver. A change in presidential administration directed EPA to reexamine its position for denial of California’s CAA waiver and for its past opposition to GHG emissions regulation. California received the waiver, notwithstanding the previous denial by EPA, on June 30, 2009. Assembly Bill 32 (2006), California Global Warming Solutions Act. In September 2006, the governor of California signed AB 32 (Chapter 488, Statutes of 2006), the California Global Warming Solutions Act of 2006, which enacted Sections 38500–38599 of the California Health and Safety Code. AB 32 requires the reduction of statewide GHG emissions to 1990 levels by 2020. This equates to an approximate 15 percent reduction compared to existing statewide GHG emission levels or a 30 percent reduction from projected 2020 “business as usual” emission levels. The required reduction will be accomplished through an enforceable statewide cap on GHG emissions beginning in 2012. To effectively implement the statewide cap on GHG emissions, AB 32 directs ARB to develop and implement regulations that reduce statewide GHG emissions generated by stationary sources. Specific actions required of ARB under AB 32 include adoption of a quantified cap on GHG emissions that represent 1990 emissions levels along with disclosing how the cap was quantified, institution of a schedule to meet the emissions cap, and development of tracking, reporting, and enforcement mechanisms to ensure that the state achieves the reductions in GHG emissions needed to meet the cap. In addition, AB 32 states that if any regulations established under AB 1493 (2002) cannot be implemented then ARB is required to develop additional, new regulations to control GHG emissions from vehicles as part of AB 32. AB 32 Climate Change Scoping Plan. In December 2008, ARB adopted its Climate Change Scoping Plan (California Air Resources Board 2008b), which Air Quality Study 37 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 contains the main strategies California will implement to achieve reduction of approximately 169 million metric tons (MMT) of CO2e, or approximately 30 percent from the state’s projected 2020 emission level of 596 MMT of CO2e under a business-as-usual scenario (this is a reduction of 42 MMT CO2e, or almost 10 percent from 2002-2004 average emissions). The Scoping Plan also includes ARB-recommended GHG reductions for each emissions sector of the state’s GHG inventory. The Scoping Plan calls for the largest reductions in GHG emissions to be achieved by implementing the following measures and standards:  improved emissions standards for light-duty vehicles (estimated reductions of 31.7 MMT CO2e);  the Low-Carbon Fuel Standard (15.0 MMT CO2e);  energy efficiency measures in buildings and appliances and the widespread development of combined heat and power systems (26.3 MMT CO2e); and  a renewable portfolio standard for electricity production (21.3 MMT CO2e). ARB has not yet determined what amount of GHG reductions it recommends from local government operations; however, the Scoping Plan does state that land use planning and urban growth decisions will play an important role in the state’s GHG reductions because local governments have primary authority to plan, zone, approve, and permit how land is developed to accommodate population growth and the changing needs of their jurisdictions( meanwhile, ARB is also developing an additional protocol for community emissions). ARB further acknowledges that decisions on how land is used will have large impacts on the GHG emissions that will result from the transportation, housing, industry, forestry, water, agriculture, electricity, and natural gas emission sectors. The Scoping Plan states that the ultimate GHG reduction assignment to local government operations is to be determined. With regard to land use planning, the Scoping Plan expects approximately 5.0 MMT CO2e will be achieved associated with implementation of SB 375, which is discussed further below. Senate Bills 1078 and 107 and Executive Order S-14-08. SB 1078 (Chapter 516, Statutes of 2002) requires retail sellers of electricity, including investor-owned utilities and community choice aggregators, to provide at least 20 percent of their supply from renewable sources by 2017. SB 107 (Chapter 464, Statutes of 2006) changed the target date to 2010. In November 2008 Governor Schwarzenegger signed Executive Order S-14-08, which expands the state’s Renewable Energy Standard to 33 percent renewable power by 2020. Senate Bill 1368 (2006). SB 1368 is the companion bill of AB 32 and was signed by Governor Schwarzenegger in September 2006. SB 1368 requires the Air Quality Study 38 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 California Public Utilities Commission (PUC) to establish a greenhouse gas emission performance standard for baseload generation from investor owned utilities by February 1, 2007. The California Energy Commission (CEC) must establish a similar standard for local publicly owned utilities by June 30, 2007. These standards cannot exceed the greenhouse gas emission rate from a baseload combined-cycle natural gas fired plant. The legislation further requires that all electricity provided to California, including imported electricity, must be generated from plants that meet the standards set by the PUC and CEC. Senate Bill 97 (2007). SB 97, signed by the Governor in August 2007 (Chapter 185, Statutes of 2007; Public Resources Code, Sections 21083.05 and 21097), acknowledges climate change is a prominent environmental issue that requires analysis under CEQA. This bill directed the Governor’s Office of Planning and Research (OPR) to prepare, develop, and transmit to the California Resources Agency by July 1, 2009 guidelines for mitigating GHG emissions or the effects of GHG emissions, as required by CEQA. The California Resources Agency is required to certify and adopt these guidelines by January 1, 2010. This bill also removes, both retroactively and prospectively, as legitimate causes of action in litigation any claim of inadequate CEQA analysis of effects of GHG emissions associated with environmental review for projects funded by the Highway Safety, Traffic Reduction, Air Quality and Port Security Bond Act of 2006 (Proposition 1B) or the Disaster Preparedness and Flood Protection Bond Act of 2006 (Proposition 1E). This provision will be repealed by provision of law on January 1, 2010 at that time such projects, if any remain unapproved, will no longer enjoy protection against litigation claims based on failure to adequately address issues related to GHG emissions. Senate Bill 375 (2008). SB 375, signed in September 2008, aligns regional transportation planning efforts, regional GHG reduction targets, and land use and housing allocation. As part of the alignment, SB 375 requires Metropolitan Planning Organizations (MPOs) to adopt a Sustainable Communities Strategy (SCS) or Alternative Planning Strategy (APS) which prescribes land use allocation in that MPO’s Regional Transportation Plan (RTP). The ARB, in consultation with MPOs, is required to provide each affected region with reduction targets for GHGs emitted by passenger cars and light trucks in the region for the years 2020 and 2035. These reduction targets will be updated every eight years but can be updated every four years if advancements in emissions technologies affect the reduction strategies to achieve the targets. The ARB is also charged with reviewing each MPO’s SCS or APS for consistency with its assigned GHG emission reduction targets. If MPOs do not meet the GHG reduction targets, transportation projects located in the MPO boundaries would not be eligible for funding programmed after January 1, 2012. This bill also extends the minimum time period for the Regional Housing Needs Allocation (RNHA) cycle from five years to eight years for local governments Air Quality Study 39 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 located in an MPO that meets certain requirements. City or County land use policies (e.g., General Plans) are not required to be consistent with the RTP including associated SCSs or APSs. Projects consistent with an approved SCS or APS and categorized as “transit priority projects” would receive incentives under new provisions of CEQA. Executive Order S-3-05 (2005). Governor Schwarzenegger signed Executive Order S-3-05 on June 1, 2005 which proclaimed California is vulnerable to the impacts of climate change. The executive order declared increased temperatures could reduce snowpack in the Sierra Nevada Mountains, further exacerbate California’s air quality problems, and potentially cause a rise in sea levels. To combat those concerns, the executive order established targets for total GHG emissions which include reducing GHG emissions to the 2000 level by 2010, to the 1990 level by 2020, and to 80 percent below the 1990 level by 2050. The executive order also directed the secretary of the California Environmental Protection Agency to coordinate a multiagency effort to reduce GHG emissions to the target levels. The secretary will submit biannual reports to the governor and legislature describing progress made toward reaching the emission targets; impacts of global warming on California’s resources; and mitigation and adaptation plans to combat impacts of global warming. To comply with the executive order, the Secretary of the California Environmental Protection Agency created the California Climate Action Team which is made up of members from various state agencies and commissions. The California Climate Action Team released its first report in March 2006 of which proposed achieving the GHG emissions targets by building on voluntary actions of California businesses and actions by local governments and communities along with continued implementation of state incentive and regulatory programs. Executive Order S-13-08. Governor Schwarzenegger signed Executive Order S- 13-08 on November 14, 2008 which directs California to develop methods for adapting to climate change through preparation of a statewide plan. The executive order directs OPR, in cooperation with the California Resources Agency (CRA), to provide land use planning guidance related to sea level rise and other climate change impacts by May 30, 2009. The order also directs the CRA to develop a state Climate Adaptation Strategy by June 30, 2009 and to convene an independent panel to complete the first California Sea Level Rise Assessment Report. The assessment report is required to be completed by December 1, 2010 and required to include the following four items: 1. project the relative sea level rise specific to California by taking into account issues such as coastal erosion rates, tidal impacts, El Niño and La Niña events, storm surge, and land subsidence rates; 2. identify the range of uncertainty in selected sea level rise projections; Air Quality Study 40 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 3. synthesize existing information on projected sea level rise impacts to state infrastructure (e.g., roads, public facilities, beaches), natural areas, and coastal and marine ecosystems; and 4. discuss future research needs relating to sea level rise in California. Executive Order S-1-07. Governor Schwarzenegger signed Executive Order S-1- 07 in 2007 which proclaimed the transportation sector as the main source of GHG emissions in California. The executive order proclaims the transportation sector accounts for over 40 percent of statewide GHG emissions. The executive order also establishes a goal to reduce the carbon intensity of transportation fuels sold in California by a minimum of 10 percent by 2020. In particular, the executive order established a Low-Carbon Fuel Standard (LCFS) and directed the Secretary for Environmental Protection to coordinate the actions of the CEC, the ARB, the University of California, and other agencies to develop and propose protocols for measuring the “life-cycle carbon intensity” of transportation fuels. This analysis supporting development of the protocols was included in the State Implementation Plan for alternative fuels (State Alternative Fuels Plan adopted by CEC on December 24, 2007) and was submitted to ARB for consideration as an “early action” item under AB 32. The ARB adopted the LCFS on April 23, 2009. Local Greenhouse Gas Regulations. The following describes local regulations related to global climate change and GHG emissions. Bay Area Air Quality Management District Climate Protection Program. The BAAQMD established a climate protection program to reduce pollutants that contribute to global climate change and affect air quality in the SFBAAB. The climate protection program includes measures that promote energy efficiency, reduce vehicle miles traveled, and develop alternative sources of energy all of which assist in reducing emissions of GHG and in reducing air pollutants that affect the health of residents. BAAQMD also seeks to support current climate protection programs in the region and to stimulate additional efforts through public education and outreach, technical assistance to local governments and other interested parties, and promotion of collaborative efforts among stakeholders. Air Quality Study 41 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 3.7 CLIMATE, TOPOGRAPHY, AIR POLLUTION POTENTIAL The following description of climate, topography and air pollution potential is based on material presented in the BAAQMD document California Environmental Quality Act Air Quality Guidelines (Bay Area Air Quality Management District 2012). The SFBAAB comprises all of Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo, and Santa Clara counties, the southern portion of Sonoma, and the southwestern portion of Solano County. Air quality in this area is determined by such natural factors as topography, meteorology, and climate, in addition to the presence of existing air pollution sources and ambient conditions. 3.7.1 Climate The climate is dominated by the strength and location of a semi-permanent, subtropical high- pressure cell. During the summer, the Pacific high pressure cell is centered over the northeastern Pacific Ocean resulting in stable meteorological conditions and a steady northwesterly wind flow. Upwelling of cold ocean water from below to the surface because of the northwesterly flow produces a band of cold water off the California coast. The cool and moisture-laden air approaching the coast from the Pacific Ocean is further cooled by the presence of the cold water band resulting in condensation and the presence of fog and stratus clouds along the Northern California coast. In the winter, the Pacific high-pressure cell weakens and shifts southward resulting in wind flow offshore, the absence of upwelling, and the occurrence of storms. Weak inversions coupled with moderate winds result in a low air pollution potential. High Pressure Cell. During the summer, the large-scale meteorological condition that dominates the West Coast is a semi-permanent high pressure cell centered over the northeastern Pacific Ocean. This high pressure cell keeps storms from affecting the California coast. Hence, the SFBAAB experiences little precipitation in the summer months. Winds tend to blow on shore out of the north/northwest. The steady northwesterly flow induces upwelling of cold water from below. This upwelling produces a band of cold water off the California coast. When air approaches the California coast, already cool and moisture-laden from its long journey over the Pacific, it is further cooled as it crosses this bank of cold water. This cooling often produces condensation resulting in a high incidence of fog and stratus clouds along the Northern California coast in the summer. Generally in the winter, the Pacific high weakens and shifts southward, winds tend to flow offshore, upwelling ceases and storms occur. During the winter rainy periods, inversions (layers of warmer air over colder air; see below) are weak or nonexistent, winds are usually moderate and air pollution potential is low. The Pacific high does periodically become dominant, bringing strong inversions, light winds and high pollution potential. Air Quality Study 42 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 3.7.2 Topography The SFBAAB is characterized by complex terrain, consisting of coastal mountain ranges, inland valleys, and bays, which distort normal wind flow patterns. The Coast Range splits resulting in a western coast gap, Golden Gate, and an eastern coast gap, Carquinez Strait, which allow air to flow in and out of the SFBAAB and the Central Valley. This complex terrain, especially the higher elevations, distorts the normal wind flow patterns in the SFBAAB. The greatest distortion occur when low-level inversions are present and the air beneath the inversion flows independently of air above the inversion, a condition that is common in the summer time. The only major break in California's Coast Range occurs in the SFBAAB. Here the Coast Range splits into western and eastern ranges. Between the two ranges lies San Francisco Bay. The gap in the western coast range is known as the Golden Gate, and the gap in the eastern coast range is the Carquinez Strait. These gaps allow air to pass into and out of the SFBAAB and the Central Valley. 3.7.3 Wind, Temperature, and Precipitation Wind Patterns. During the summer, winds flowing from the northwest are drawn inland through the Golden Gate and over the lower portions of the San Francisco Peninsula. Immediately south of Mount Tamalpais, the northwesterly winds accelerate considerably and come more directly from the west as they stream through the Golden Gate. This channeling of wind through the Golden Gate produces a jet that sweeps eastward and splits off to the northwest toward Richmond and to the southwest toward San Jose when it meets the East Bay hills. Wind speeds may be strong locally in areas where air is channeled through a narrow opening, such as the Carquinez Strait, the Golden Gate or the San Bruno gap. For example, the average wind speed at San Francisco International Airport in July is about 17 knots (from 3 p.m. to 4 p.m.), compared with only seven knots at San Jose and less than six knots at the Farallon Islands. The air flowing in from the coast to the Central Valley, called the sea breeze, begins developing at or near ground level along the coast in late morning or early afternoon. As the day progresses, the sea breeze layer deepens and increases in velocity while spreading inland. The depth of the sea breeze depends in large part upon the height and strength of the inversion. If the inversion is low and strong, and hence stable, the flow of the sea breeze will be inhibited and stagnant conditions are likely to result. In the winter, the SFBAAB frequently experiences stormy conditions with moderate to strong winds, as well as periods of stagnation with very light winds. Winter stagnation episodes are characterized by nighttime drainage flows in coastal valleys. Drainage is a reversal of the usual daytime air-flow patterns; air moves from the Central Valley toward the coast and back down toward the Bay from the smaller valleys within the SFBAAB. Air Quality Study 43 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Temperature. Summertime temperatures in the SFBAAB are determined in large part by the effect of differential heating between land and water surfaces. Because land tends to heat up and cool off more quickly than water, a large-scale gradient (differential) in temperature is often created between the coast and the Central Valley, and small-scale local gradients are often produced along the shorelines of the ocean and bays. The temperature gradient near the ocean is also exaggerated, especially in summer, because of the upwelling of cold ocean bottom water along the coast. On summer afternoons the temperatures at the coast can be 35 degrees Fahrenheit (ºF) cooler than temperatures 15 to 20 miles inland. At night this contrast usually decreases to less than 10ºF. In the winter, the relationship of minimum and maximum temperatures is reversed. During the daytime the temperature contrast between the coast and inland areas is small, whereas at night the variation in temperature is large. Precipitation. The SFBAAB is characterized by moderately wet winters and dry summers. Winter rains account for about 75 percent of the average annual rainfall. The amount of annual precipitation can vary greatly from one part of the SFBAAB to another even within short distances. In general, total annual rainfall can reach 40 inches in the mountains, but it is often less than 16 inches in sheltered valleys. During rainy periods, ventilation (rapid horizontal movement of air and injection of cleaner air) and vertical mixing are usually high, and thus pollution levels tend to be low. However, frequent dry periods do occur during the winter where mixing and ventilation are low and pollutant levels build up. 3.7.4 Air Pollution Potential The potential for high pollutant concentrations developing at a given location depends upon the quantity of pollutants emitted into the atmosphere in the surrounding area or upwind, and the ability of the atmosphere to disperse the contaminated air. The topographic and climatological factors discussed above influence the atmospheric pollution potential of an area. Atmospheric pollution potential, as the term is used here, is independent of the location of emission sources and is instead a function of factors described below. Wind Circulation. Low wind speed contributes to the buildup of air pollution because it allows more pollutants to be emitted into the air mass per unit of time. Light winds occur most frequently during periods of low sun (fall and winter, and early morning) and at night. These are also periods when air pollutant emissions from some sources are at their peak, namely, commute traffic (early morning) and wood burning appliances (nighttime). The problem can be compounded in valleys, when weak flows carry the pollutants upvalley during the day, and cold air drainage flows move the air mass downvalley at night. Such restricted movement of trapped air provides little opportunity for ventilation and leads to buildup of pollutants to potentially unhealthful levels. Air Quality Study 44 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Inversions. An inversion is a layer of warmer air over a layer of cooler air. Inversions affect air quality conditions significantly because they influence the mixing depth (i.e., the vertical depth in the atmosphere available for diluting air contaminants near the ground). The highest air pollutant concentrations in the SFBAAB generally occur during inversions. There are two types of inversions that occur regularly in the SFBAAB. One is more common in the summer and fall, while the other is most common during the winter. The frequent occurrence of elevated temperature inversions in summer and fall months acts to cap the mixing depth, limiting the depth of air available for dilution. Elevated inversions are caused by subsiding air from the subtropical high pressure zone, and from the cool marine air layer that is drawn into the SFBAAB by the heated low pressure region in the Central Valley. The inversions typical of winter, called radiation inversions, are formed as heat quickly radiates from the earth's surface after sunset, causing the air in contact with it to rapidly cool. Radiation inversions are strongest on clear, low-wind, cold winter nights, allowing the build-up of such pollutants as CO and particulate matter. When wind speeds are low, there is little mechanical turbulence to mix the air, resulting in a layer of warm air over a layer of cooler air next to the ground. Mixing depths under these conditions can be as shallow as 50 to 100 meters, particularly in rural areas. Urban areas usually have deeper minimum mixing layers because of heat island effects and increased surface roughness. During radiation inversions downwind transport is slow, the mixing depths are shallow, and turbulence is minimal, all factors which contribute to ozone formation. Although each type of inversion is most common during a specific season, either inversion mechanism can occur at any time of the year. Sometimes both occur simultaneously. Moreover, the characteristics of an inversion often change throughout the course of a day. The terrain of the SFBAAB also induces significant variations among subregions. Solar Radiation. The frequency of hot, sunny days during the summer months in the SFBAAB is another important factor that affects air pollution potential. It is at the higher temperatures that ozone is formed. In the presence of ultraviolet sunlight and warm temperatures, ROG and NOx react to form secondary photochemical pollutants, including ozone. Because temperatures in many of the SFBAAB inland valleys are so much higher than near the coast, the inland areas are especially prone to photochemical air pollution. In late fall and winter, solar angles are low, resulting in insufficient ultraviolet light and warming of the atmosphere to drive the photochemical reactions. Ozone concentrations do not reach significant levels in the SFBAAB during these seasons. Sheltered Terrain. The hills and mountains in the SFBAAB contribute to the high pollution potential of some areas. During the day, or at night during windy conditions, areas in the lee sides of mountains are sheltered from the prevailing winds, thereby reducing turbulence and downwind transport. At night, when wind speeds are low, the upper atmospheric layers are often decoupled from the surface layers during radiation conditions. If elevated terrain is present, it Air Quality Study 45 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 will tend to block pollutant transport in that direction. Elevated terrain also can create a recirculation pattern by inducing upvalley air flows during the day and reverse downvalley flows during the night, allowing little inflow of fresh air. The areas having the highest air pollution potential tend to be those that experience the highest temperatures in the summer and the lowest temperatures in the winter. The coastal areas are exposed to the prevailing marine air, creating cooler temperatures in the summer, warmer temperatures in winter, and stratus clouds all year. The inland valleys are sheltered from the marine air and experience hotter summers and colder winters. Thus, the topography of the inland valleys creates conditions conducive to high air pollution potential. Pollution Potential Related to Emissions. Although air pollution potential is strongly influenced by climate and topography, the air pollution that occurs in a location also depends upon the amount of air pollutant emissions in the surrounding area or transported from more distant places. Air pollutant emissions generally are highest in areas that have high population densities, high motor vehicle use and/or industrialization. These contaminants created by photochemical processes in the atmosphere, such as ozone, may result in high concentrations many miles downwind from the sources of their precursor chemicals. 3.7.5 Carquinez Strait Subregion This section discusses the varying climatological and topographic conditions, and the resulting variations in air pollution potential, within the Carquinez Strait subregion. The Carquinez Strait runs from Rodeo to Martinez. It is the only sea-level gap between the Bay and the Central Valley. The subregion includes the lowlands bordering the strait to the north and south, and includes the area adjoining Suisun Bay and the western part of the Sacramento-San Joaquin Delta as far east as Bethel Island. The subregion extends from Rodeo in the southwest and Vallejo in the northwest to Fairfield on the northeast and Brentwood on the southeast. Prevailing winds are from the west in the Carquinez Strait. During the summer and fall months, high pressure offshore coupled with low pressure in the Central Valley causes marine air to flow eastward through the Carquinez Strait. The wind is strongest in the afternoon. Afternoon wind speeds of 15 to 20 miles per hour (mph) are common throughout the strait region. Annual average wind speeds are eight mph in Martinez, and nine to 10 mph further east. Sometimes atmospheric conditions cause air to flow from the east. East winds usually contain more pollutants than the cleaner marine air from the west. In the summer and fall months, this can cause elevated pollutant levels to move into the central SFBAAB through the strait. These high pressure periods are usually accompanied by low wind speeds, shallow mixing depths, higher temperatures and little or no rainfall. Summer mean maximum temperatures reach about 90ºF in the subregion. Mean minimum temperatures in the winter are in the high 30’s. Temperature extremes are especially pronounced in sheltered areas farther from the moderating effects of the strait itself (e.g., at Fairfield). Air Quality Study 46 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Many industrial facilities with significant air pollutant emissions (e.g., chemical plants and refineries) are located within the Carquinez Strait subregion. The pollution potential of this area is often moderated by high wind speeds. However, upsets at industrial facilities can lead to short-term pollution episodes, and emissions of unpleasant odors may occur at anytime. Receptors downwind of these facilities could suffer more long-term exposure to air contaminants than individuals elsewhere. It is important that local governments and other agencies maintain buffers zones around sources of air pollution sufficient to avoid adverse health and nuisance impacts on nearby receptors. Areas of the subregion that are traversed by major roadways (e.g., Interstate 80) may also be subject to higher local concentrations of CO and particulate matter, as well as certain toxic air contaminants such as benzene. Air Quality Study 47 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 SECTION 4 SHORT-TERM CONSTRUCTION IMPACTS Implementation of the West Antioch Creek Channel Improvement Project would result in construction activity, which would generate air pollutant emissions. Construction activities such as grading, excavation and travel on unpaved surfaces would generate dust, and can lead to elevated concentrations of PM10 and PM2.5. The operation of construction equipment results in exhaust emissions, which include ROG and NOx. 4.1 SIGNIFICANCE THRESHOLDS The following describes significance thresholds applied in this Air Quality Study. In addition to describing significance thresholds applied in the analysis of short-term construction-related emissions, the following also describes significance thresholds applied in the analysis of long- term operational emissions. As a result, the descriptions of significance thresholds presented in Section 5, Long-Term Operational Impacts of this Air Quality Study refer back to the following description. 4.1.1 Litigation On June 2, 2010, the BAAQMD Board of Directors adopted a set of CEQA thresholds of significance (Bay Area Air Quality Management District 2010b). The thresholds of significance were included in a May 2011 update of the district CEQA guidelines, California Environmental Quality Act Air Quality Guidelines – Updated May 2011 (Bay Area Air Quality Management District 2011). On March 5, 2012 the Alameda Superior Court issued a judgment finding the BAAQMD had failed to comply with CEQA when it adopted the June 2010 thresholds. The court did not determine whether the thresholds were valid on the merits, but found that the adoption of the thresholds was a project under CEQA. The court issued a writ of mandate ordering the District to set aside the thresholds and cease dissemination of them until the District had complied with CEQA. The BAAQMD appealed the Alameda County Superior Court’s decision in the California First District Court of Appeal. On August 13, 2013, the California First District Court of Appeal overturned the March 5, 2012 decision by the Alameda Superior Court. While the August 13, 2013 decision by the Court of Appeal did not result in immediate reinstatement of the June 2010 BAAQMD thresholds, the decision lays the groundwork for reinstatement of the thresholds. Air Quality Study 48 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 The March 5, 2012 order by the Alameda Superior Court to set aside the June 2010 thresholds was based on a procedural action and not on the scientific merits of the thresholds. Because of this, and the August 13, 2013 decision by the Court of Appeal to overturn the Alameda Superior Court decision, this Air Quality Study uses the June 2010 thresholds. 4.1.2 Thresholds The SFBAAB is currently designated as a nonattainment area for ozone and particulate matter air quality standards. The BAAQMD June 2010 significance thresholds include values for ozone precursors and particulate matter. These thresholds are presented in Table 10. The Proposed Project would be considered to result in a significant air quality impact if it would result in emissions greater than the values shown in Table 10. As shown in Table 10, implementation of “Best Management Practices” is considered to reduce the impact of construction-related particulate matter emissions to a less than significant level. The following Best Management Practices measures are from Table 8-1 of the California Environmental Quality Act Air Quality Guidelines – Updated May 2011: 1. All exposed surfaces (e.g., parking areas, staging areas, soil piles, graded areas, and unpaved access roads) shall be watered two times per day. 2. All haul trucks transporting soil, sand, or other loose material off-site shall be covered. 3. All visible mud or dirt track-out onto adjacent public roads shall be removed using wet power vacuum street sweepers at least once per day. The use of dry power sweeping is prohibited. 4. All vehicle speeds on unpaved roads shall be limited to 15 mph. 5. All roadways, driveways, and sidewalks to be paved shall be completed as soon as possible. Building pads shall be laid as soon as possible after grading unless seeding or soil binders are used. 6. Idling times shall be minimized either by shutting equipment off when not in use or reducing the maximum idling time to 5 minutes (as required by the California airborne toxics control measure Title 13, Section 2485 of California Code of Regulations [CCR]). Clear signage shall be provided for construction workers at all access points. 7. All construction equipment shall be maintained and properly tuned in accordance with manufacturer‘s specifications. All equipment shall be checked by a certified visible emissions evaluator. Air Quality Study 49 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 8. Post a publicly visible sign with the telephone number and person to contact at the lead agency regarding dust complaints. This person shall respond and take corrective action within 48 hours. The Air District‘s phone number shall also be visible to ensure compliance with applicable regulations. Implementation of these Best Management Practices measures is considered to reduce construction-related particulate matter air quality impacts to a less than significant level. 4.2 METHODOLOGY As specified in Appendix B of the BAAQMD document California Environmental Quality Act Air Quality Guidelines (Bay Area Air Quality Management District 2012), “For proposed projects that are linear in nature (e.g., road or levee construction, pipeline installation, transmission lines), use the most current version of Sacramento Metropolitan Air Quality Management District’s (SMAQMD) Road Construction Emissions Model (RoadMod) to quantify construction-related criteria air pollutants and precursors. . . Use RoadMod in accordance with the user instructions and default assumptions unless project-specific information is available. The default assumptions are applicable to projects located within the SFBAAB.” The amount of project-related criteria pollutant emissions due to construction activities was calculated using Version 7.1.4 of the Road Construction Emissions Model. The amount and timing of construction activity assumed in the calculation of construction-related emissions is presented in the Project Description section of this Air Quality Study. Output report tables from the Road Construction Emissions Model are presented in the Technical Appendix of this Air Quality Study. Air Quality Study 50 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Table 10. Bay Area Air Quality Management District Significance Thresholds Operational-Related Construction- Related Average Daily Average Daily Maximum Type and Source Emissions Emissions Annual Emissions of Emissions (in lbs/day) (in lbs/day) (in tpy) Reactive Organic Gas 54 54 10 (ROG) Nitrogen Oxides 54 54 10 (NOx) Inhalable Particulate Matter 82 82 15 (PM10)(Exhaust Only) Fine Particulate Matter 54 54 10 (PM2.5)(Exhaust Only) PM10 / PM2.5 Best None None (Fugitive Dust)Management Practices Greenhouse Gases (GHG)None Compliance with Qualified (Projects other than Greenhouse Gas Reduction Strategy, or stationary sources)1,100 MT of CO2e/yr, or 4.6 MT CO2e/SP/yr (residents + employees) ________________________________ Notes: lbs/day = pounds per day. tpy = tons per year. MT = metric tons. CO2e/yr = carbon dioxide equivalent per year. CO2e/SP/yr = carbon dioxide equivalent per service population per year. Source: Bay Area Air Quality Management District 2010b. Air Quality Study 51 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 4.3 IMPACTS The following is a description of construction-related impacts of the West Antioch Creek Channel Improvement Project on criteria pollutant emissions. Implementation of the Proposed Project would result in construction activity, which would generate air pollutant emissions. Construction activities such as demolition, grading, excavation and travel on unpaved surfaces would generate dust, and can lead to elevated concentrations of particulate matter emissions PM10 and PM2.5. The operation of construction equipment results in exhaust emissions, which include ozone precursors ROG and NOx. As noted in the Project Description section of this Air Quality Study, activities in the sub-reaches of the Proposed Project may be combined in various ways. While the construction activities in each of the sub-reaches are relatively well-defined, the combination of sub-reaches that may be constructed concurrently is not known. Table 11 presents estimates of construction-related ROG, NOx, PM10, and PM2.5 emissions. Because the combination of sub-reaches is not known, Table 11 presents emissions for each sub-reach activity individually. By presenting emissions for each sub-reach individually, this approach allows future calculations of various combinations. In addition to showing emissions for each sub-reach individually, Table 11 also separately shows emissions associated with pumps for dewatering. Emissions for dewatering pumps is shown separately because there would be one set of pumps operating regardless of the number of sub-reaches that may be constructed concurrently. For example, if sub-reaches B-1 and B-2 were constructed concurrently, the emissions for sub-reach B-1 would be added to emissions for sub-reach B-2, and emissions for dewatering pumps would also be added; the single set of pumps would dewater both sub-reaches. In this example, NOx emissions for the combination of sub- reaches B-1 and B-2 would be 41.7 ppd (17.6 + 15.3 + 8.8 = 41.7). 4.3.1 Reactive Organic Gas Emissions The maximum hypothetical daily amount of ROG emissions associated with construction of the Proposed Project would be the sum of all the ROG emissions shown in Table 11. This hypothetical scenario is unrealistic because it would involve all sub-reaches and all activities occurring on the same day. Even under this unrealistic scenario, ROG emissions would be 20.2 ppd, which would be less than the 54 ppd significance threshold for construction-related ROG emissions shown in Table 10. Therefore, according to methods described in the Significance Thresholds section of the Air Quality Study, this impact is considered less-than-significant, and no mitigation measures are required. Air Quality Study 52 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Table 11. Construction-Period Emissions for Each Sub-Reach and Activity Criteria Pollutant Emissions Estimated PM10 PM2.5 Sub-Duration (Exhaust (Exhaust Reach Reach Activity (Weeks) ROG NOx Only) Only) Emissions From Construction Activities, Excluding Pumps for Dewatering A A-1 Demolition/Excavation 3 2.6 15.2 1.2 1.1 Culvert Placement 4 2.2 16.9 1.0 0.8 Road Reconstruction 4 1.5 9.3 0.6 0.5 A A-2 Demolition 2 1.2 5.7 0.5 0.4 Excavation 8 2.3 22.3 1.0 0.9 Soil Removal/Hauling 8 1.1 8.3 0.4 0.3 B B-1 16 1.7 17.6 0.7 0.6 B B-2 8 1.6 15.3 0.7 0.5 B B-3 16 1.8 19.6 0.8 0.6 B B-4 12 1.7 15.5 0.7 0.6 Emissions from Pumps for Dewatering Entire All All Pumps for Dewatering Construction 2.5 8.8 0.7 0.6 Period _____________________ Notes: ROG = reactive organic gases. NOx = nitrogen oxides. PM10 = inhalable particulate matter. PM2.5 = fine particulate matter. All values are in pounds per day. Air Quality Study 53 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 4.3.2 Inhalable Particulate Matter (PM10) - Exhaust The maximum hypothetical daily amount of PM10 emissions associated with construction of the Proposed Project would be the sum of all the PM10 emissions shown in Table 11. Even under this unrealistic scenario, PM10 emissions would be 8.6 ppd, which would be less than the 82 ppd significance threshold for construction-related PM10 emissions shown in Table 10. Therefore, according to methods described in the Significance Thresholds section of the Air Quality Study, this impact is considered less-than-significant, and no mitigation measures are required. 4.3.3 Inhalable Particulate Matter (PM2.5) - Exhaust The maximum hypothetical daily amount of PM2.5 emissions associated with construction of the Proposed Project would be the sum of all the PM2.5 emissions shown in Table 11. Even under this unrealistic scenario, PM2.5 emissions would be 6.9 ppd, which would be less than the 54 ppd significance threshold for construction-related PM2.5 emissions shown in Table 10. Therefore, according to methods described in the Significance Thresholds section of the Air Quality Study, this impact is considered less-than-significant, and no mitigation measures are required. 4.3.4 Particulate Matter – Fugitive Dust As shown in Table 10, PM10 and PM2.5 emissions would be reduced to less-than-significant levels with implementation of Best Management Practices. Therefore, according to methods described in the Significance Thresholds section of the Air Quality Study, application of the following mitigation measures would reduce construction-related PM10 and PM2.5 emissions to a less-than-significant level: Mitigation Measures. The following mitigation measures should be implemented: 1. All exposed surfaces (e.g., parking areas, staging areas, soil piles, graded areas, and unpaved access roads) shall be watered two times per day. 2. All haul trucks transporting soil, sand, or other loose material off-site shall be covered. 3. All visible mud or dirt track-out onto adjacent public roads shall be removed using wet power vacuum street sweepers at least once per day. The use of dry power sweeping is prohibited. 4. All vehicle speeds on unpaved roads shall be limited to 15 mph. 5. All roadways, driveways, and sidewalks to be paved shall be completed as soon as possible. Building pads shall be laid as soon as possible after grading unless seeding or soil binders are used. 6. Idling times shall be minimized either by shutting equipment off when not in use or reducing the maximum idling time to 5 minutes (as required by the California Air Quality Study 54 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 airborne toxics control measure Title 13, Section 2485 of California Code of Regulations [CCR]). Clear signage shall be provided for construction workers at all access points. 7. All construction equipment shall be maintained and properly tuned in accordance with manufacturer‘s specifications. All equipment shall be checked by a certified visible emissions evaluator. 8. Post a publicly visible sign with the telephone number and person to contact at the lead agency regarding dust complaints. This person shall respond and take corrective action within 48 hours. The Air District‘s phone number shall also be visible to ensure compliance with applicable regulations. 4.3.5 Nitrogen Oxides Table 11 presents estimates of construction-related NOx emissions for each sub-reach individually.  The largest individual amount would be for Excavation during sub-reach A-1. NOx emissions would be 22.3 ppd for all activities except pumping for dewatering, and 8.8 ppd for dewatering pumping, for a total of 31.1 ppd (22.3 + 8.8 = 31.1).  The smallest individual amount would be for Demolition during sub-reach A-1. NOx emissions would be 5.7 ppd for all activities except pumping for dewatering, and 8.8 ppd for dewatering pumping, for a total of 14.5 ppd (5.7 + 8.8 = 14.5). As noted earlier in this Air Quality Study, activities in the sub-reaches of the Proposed Project may be combined in various ways. However, the combination of sub-reaches that may be constructed concurrently is not known. The significance threshold for construction-related NOx emissions shown in Table 10 is 54 ppd. Table 11 shows that NOx emissions for each individual sub-reach would be below 54 ppd. However, if larger groups of sub-reaches were constructed concurrently, the NOx emissions could exceed 54 ppd. For evaluation and disclosure purposes in this Air Quality Study, a realistic potential set of combinations was analyzed (Matson pers. comm.). The following describes the combinations.  In sub-reach A-1, demolition/excavation, culvert placement, and road reconstruction would occur separately and sequentially. That is, none of these three activities in this sub-reach would occur concurrently.  In sub-reach A-2, demolition would occur by itself. Then, excavation and soil removal/hauling would occur concurrently.  Sub-reaches B-1 and B-2 would occur concurrently. Air Quality Study 55 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013  Sub-reaches B-3 and B-4 would occur concurrently. Table 12 presents emissions that would occur due to construction of the combinations described above. The values in Table 12 were calculated by summing emissions associated with individual sub-reaches, and adding emissions associated with pumps for dewatering. Emissions for each individual sub-reach and for dewatering pumps are shown in Table 11. For example, Table 12 shows 41.7 ppd of NOx emissions associated with sub-reach “B-1 Plus B-2”. The 41.7 ppd is calculated by summing the NOx values shown in Table 11 for sub-reach B-1 (17.6 ppd), sub-reach B-2 (15.3 ppd), and dewatering pumping (8.8 ppd). As shown in the Table 11, the largest amount of NOx emissions would occur during the concurrent construction of sub-reach B-3 and sub-reach B-4. The “B-3 Plus B-4” scenario would result in 43.9 ppd of NOx emissions, which would be less than the 54 ppd significance threshold for construction-related NOx emissions shown in Table 10. Therefore, according to methods described in the Significance Thresholds section of the Air Quality Study, this impact is considered less-than-significant, and no mitigation measures are required. The combination of sub-reaches shown in Table 12 is not the only combination of sub-reaches that could be constructed simultaneously while the impact remains less than significant. Any combination of sub-reaches with a sum of NOx emissions less than 54 ppd would result in a less than significant impact. Air Quality Study 56 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Table 12. Construction Emissions from Potential Combinations of Sub-Reaches and Activities Criteria Pollutant Emissions PM10 PM2.5 (Exhaust (Exhaust Sub-Reach Activity ROG NOx Only) Only) A-1 Demolition/Excavation 5.1 24.0 1.9 1.7 Culvert Placement 4.7 25.7 1.7 1.4 Road Reconstruction 4.0 18.1 1.3 1.1 A-2 Demolition 3.7 14.5 1.2 1.0 Excavation Plus Soil Removal/Hauling 5.9 39.4 2.1 1.8 B-1 Plus B-2 5.8 41.7 2.1 1.7 B-3 Plus B-4 6.0 43.9 2.2 1.8 _____________________ Notes: ROG = reactive organic gases. NOx = nitrogen oxides. PM10 = inhalable particulate matter. PM2.5 = fine particulate matter. All values are in pounds per day. Emissions shown above are calculated by summing emissions from individual sub-reaches from Table 11, and adding emissions from pumps for dewatering. For example, NOx emissions for "B-1 Plus B-2" is calculated as 17.6 + 15.3 + 8.8 = 41.7 pounds per day. Source: CalEEMod emissions model. Air Quality Study 57 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 SECTION 5 LONG-TERM OPERATIONAL IMPACTS This section of this Air Quality Study assesses the long-term operational impact of project-related emissions on air quality. 5.1 SIGNIFICANCE THRESHOLDS Section 4.1, Significance Thresholds, of this Air Quality Study, describes significance thresholds recommended by the BAAQMD and applied in this study to both construction-related and operational criteria pollutant emissions. 5.2 METHODOLOGY The West Antioch Creek Channel Improvement Project would not generate long-term operational emissions. Therefore, the project-related change in operational criteria pollutant emissions has not been quantified for this Air Quality Study. 5.3 IMPACTS The following is a description of operational impacts of the West Antioch Creek Channel Improvement Project on criteria pollutant emissions. Long-term operation of the West Antioch Creek Channel Improvement Project would not generate new vehicle trips, would not geographically re-distribute vehicle travel, and would not result in a change in stationary source emissions. Therefore, the Proposed Project would not result in a change in long-term operational ROG, NOx, PM10 or PM2.5 emissions, and would have a less-than-significant impact on ozone and particulate matter concentrations. This impact is considered less than significant and no mitigation measures are required. Air Quality Study 58 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 SECTION 6 LOCAL CARBON MONOXIDE IMPACTS Carbon monoxide emissions are strongly associated with vehicle travel. Elevated concentrations of CO are found in close proximity to roadway with high traffic volumes. Also, because vehicle CO emission rates increase as vehicle speeds decrease, elevated CO concentrations are associated with high levels of traffic congestion. During the short-term construction period, the West Antioch Creek Channel Improvement Project would generate some vehicle trips and, therefore, would generate some amount of CO emissions. The vehicle trips would be primarily associated with construction worker commute travel. As described in the Construction Schedule section of this Air Quality Study, the construction crew size would be 25 to 30 people. The number of construction-period vehicle trips is expected to be modest, and is not expected to increase traffic volumes enough to result in a substantial change in traffic congestion. Long-term operation of the West Antioch Creek Channel Improvement Project would not generate new vehicle trips, would not geographically re-distribute vehicle travel, and would not result in a change in stationary source emissions. Therefore, the Proposed Project would not result in a change in long-term operational CO emissions. The project site is located in an area designated attainment or unclassified for federal and state CO air quality standards. This is confirmed by low monitored levels of CO concentrations shown in Table 2. Because of the low background concentrations of CO and the low number of vehicle trips that would be generated, the West Antioch Creek Channel Improvement Project is considered to not have the potential for resulting in violations of federal or state CO air quality standards. Therefore, the project is considered to have a less than significant on CO, and no mitigation measures are required. Air Quality Study 59 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 SECTION 7 TOXIC AIR CONTAMINANTS This section of this Air Quality Study describes the impact of the West Antioch Creek Channel Improvement Project related to two types of toxic air contaminants (TAC) emissions:  naturally-occurring asbestos (NOA), and  construction-related diesel particulate matter. 7.1 SIGNIFICANCE THRESHOLDS The following describes thresholds applied in this Air Quality Study to determine the significance of impacts associated with naturally-occurring asbestos and diesel particulate matter. 7.1.1 Naturally-Occurring Asbestos Portions of Contra Costa County contain a type of rock referred to as “ultramafic”. As a result, these areas are considered to be more likely to contain NOA. Emissions of NOA have been attributed to soil-disturbing activities, including construction activities. Construction activities could entrain NOA into the air, exposing on-site sensitive uses and other land uses in areas surrounding a project site to NOA. A screening evaluation of potential impacts associated with NOA was conducted for this Air Quality Study based on a review of the California Department of Conservation map A General Location Guide for Ultramafic Rocks in California – Areas More Likely to Contain Naturally Occurring Asbestos (California Department of Conservation 2000). If the screening evaluation indicates an elevated likelihood of NOA being on the project site, the impact associated with NOA will be considered significant. If the screening evaluation does not indicate an elevated likelihood of NOA being on the project site, the impact will be considered less-than-significant. 7.1.2 Construction-Related Diesel Particulate Matter A component of diesel exhaust is particulate matter. Diesel particulate matter (DPM) has been identified as a TAC (http://www.arb.ca.gov/research/diesel/diesel-health.htm). While the BAAQMD does not present significance threshold specifically for construction-related DPM, the significance thresholds presented in Table 10 do include thresholds for PM10 and PM2.5 from Air Quality Study 60 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 construction-related exhaust. Because a substantial portion of construction-related exhaust is emitted by diesel engines, the PM10 and PM2.5 construction-related exhaust thresholds presented in Table 10 are used in this Air Quality Study to determine the significance of DPM emissions. The BAAMQD thresholds for construction-related exhaust includes 82 ppd for PM10 and 54 ppd for PM2.5. 7.2 METHODOLOGY The following describes the sources of information used to evaluate impacts associated with TAC emissions. 7.2.1 Naturally-Occurring Asbestos The screening evaluation for NOA was based on documents available from the California Department of Conservation website (ftp://ftp.consrv.ca.gov/pub/dmg/pubs/ofr/ofr_2000- 019.pdf). 7.2.2 Construction-Related Diesel Particulate Matter As described in Section 4.2, Methodology, of this Air Quality Study, Version 7.1.4 of the Road Construction Emissions Model has been used to estimate construction-related emissions. 7.3 IMPACTS The following is a description of the TAC emission impacts of the West Antioch Creek Channel Improvement Project. 7.3.1 Naturally-Occurring Asbestos Based on information presented in the California Department of Conservation map A General Location Guide for Ultramafic Rocks in California – Areas More Likely to Contain Naturally Occurring Asbestos¸ the areas more likely to contain NOA which are nearest to the West Antioch Creek Channel Improvement Project site are approximately eight miles south-southeast of the project site in the Mount Diablo State Park. Because no portion of the West Antioch Creek Channel Improvement Project site is in an area considered more likely to contain NOA, the impact of the Proposed Project on NOA is considered less-than-significant and no mitigation measures are required. 7.3.2 Construction-Related Diesel Particulate Matter Table 11 shows project-related construction exhaust emissions for PM10 and PM2.5. As shown in Table 11, PM10 emissions would be below the 82 ppd threshold, and PM2.5 emissions would be Air Quality Study 61 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 below the 54 ppd threshold. Because construction-related exhaust emissions of PM10 and PM2.5 would be below the BAAQMD significance threshold, the impact of the Proposed Project on construction-related diesel particulate matter is considered less than significant and no mitigation measures are required. Air Quality Study 62 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 SECTION 8 GLOBAL CLIMATE CHANGE AND GREENHOUSE GAS IMPACTS This section of this Air Quality Study describes the effects of the West Antioch Creek Channel Improvement Project on global climate change and GHG emissions. Short-term construction of the Proposed Project would generate emissions which are associated with global climate change. As noted earlier in Section 5, Long-Term Operational Impacts, of this Air Quality Study, the West Antioch Creek Channel Improvement Project would not result in a change in long-term operational emissions. 8.1 SIGNIFICANCE THRESHOLDS Section 15064.4(a) of the State CEQA Guidelines states, “The determination of the significance of greenhouse gas emissions calls for a careful judgment by the lead agency consistent with the provisions in section 15064. A lead agency should make a good-faith effort, based to the extent possible on scientific and factual data, to describe, calculate or estimate the amount of greenhouse gas emissions resulting from a project.” Section 15064.4(b) of the State CEQA Guidelines states, “A lead agency should consider the following factors, among others, when assessing the significance of impacts from greenhouse gas emissions on the environment: “(1) The extent to which the project may increase or reduce greenhouse gas emissions as compared to the existing environmental setting; “(2) Whether the project emissions exceed a threshold of significance that the lead agency determines applies to the project.” Neither Section 15064.4(a) nor Section 15064.4(b) of the State CEQA Guidelines make a distinction between construction-related and operational GHG emissions. Air Quality Study 63 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 As shown in Table 10, the BAAQMD does not specify a significance threshold for construction- related GHG emissions. For operational GHG emissions, the BAAQMD provides three alternative thresholds. As noted earlier in Section 4 of this Air Quality Study, Short-Term Construction Impacts, the West Antioch Creek Channel Improvement Project would generate construction-related emissions. The Proposed Project would generate both criteria pollutant and GHG construction- related emissions. As noted earlier in Section 5 of this Air Quality Study, Long-Term Operational Impacts, the Proposed Project would not result in a change in operational emissions; this applies to both criteria pollutant emissions and GHG emissions. While the BAAQMD significance thresholds for GHG emissions apply to operational emissions, rather than construction-related emissions, the BAAQMD GHG thresholds are applied in this Air Quality Study to project-related construction emissions. This approach is applied to provide a quantitative basis for determining the significance of project-related GHG emissions. This approach is considered conservatively strict because the BAAQMD operational significance thresholds for GHG emissions are intended to apply to annual emissions which would repeatedly occur every year for the lifetime of a project. Conversely, the Proposed Project would only generate construction-related emissions, which would only occur once, during the finite construction period. As shown in Table 10, the following three alternative significance thresholds are provided by the BAAQMD for operational GHG emissions:  compliance with a qualified Greenhouse Gas Reduction Strategy,  1,100 metric tons (MT) of CO2e per year, or  4.6 MT of CO2e per service population per year. The first and third alternative thresholds listed above can be applied to long-term operational GHG emissions generated by land use development projects. However, the first and third alternative thresholds have only limited applicability to short-term construction-related emissions generated by infrastructure projects, such as the West Antioch Creek Channel Improvement Project. As a result, the second alternative threshold listed above is applied in this Air Quality Study. If construction of the Proposed Project would generate more than 1,100 MT of CO2 per year, the project is considered to have a significant impact on GHG emissions. 8.2 METHODOLOGY As described earlier in Section 4.2, Methodology, of this Air Quality Study, emissions associated with construction of the West Antioch Creek Channel Improvement Project were quantified using Version 7.1.4 of the Road Construction Emissions Model. Air Quality Study 64 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 8.3 IMPACTS Estimates of construction-related GHG emissions associated with the West Antioch Creek Channel Improvement Project are shown in Table 13. As shown in Table 13, the Proposed Project would result in 800.0 construction-related metric tons of CO2e emissions during the construction period. Because the West Antioch Creek Channel Improvement Project would result in construction- related GHG emissions which are less than the significance threshold of 1,100 metric tons per year of CO2 emissions, this impact is considered less-than-significant and no mitigation measures are required. Air Quality Study 65 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Table 13. Construction-Period Greenhouse Gases Emissions Construction Period Sub- CO2 Emissions Reach Reach Activity (Metric Tons) A A-1 Demolition/Excavation 26.1 Culvert Placement 36.6 Road Reconstruction 26.3 A A-2 Demolition 12.6 Excavation 85.7 Soil Removal/Hauling 57.2 B B-1 173.8 B B-2 79.6 B B-3 184.1 B B-4 118.0 _________ Construction Period Total 800.0 BAAQMD Significance Threshold 1,100 _____________________ Notes: All values are expressed as metric tons of carbon dioxide emissions for the construction period. BAAQMD = Bay Area Air Quality Management District. Source: CalEEMod emissions model. Air Quality Study 66 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 REFERENCES Publications Cited Bay Area Air Quality Management District. 2006. Bay Area 2005 Ozone Strategy. San Francisco, CA. Bay Area Air Quality Management District. 2010a. Bay Area 2010 Clean Air Plan. San Francisco, CA. Bay Area Air Quality Management District. 2010b. Adopted Air Quality CEQA Thresholds of Significance - June 2, 2010. San Francisco, CA. Bay Area Air Quality Management District. 2011. California Environmental Quality Act Air Quality Guidelines – Updated May 2011. San Francisco, CA. Bay Area Air Quality Management District. 2012. California Environmental Quality Act Air Quality Guidelines. San Francisco, CA. Bay Area Air Quality Management District. 2013. Bay Area Air Quality Management District Internet Website. http://www.baaqmd.gov/. California Air Resources Board. 2008a. Comparison of Greenhouse Gas Reductions for the United States and Canada Under the U.S. CAFE Standard and California Air Resources Board Greenhouse Gas Regulations. Sacramento, CA. California Air Resources Board. 2008b. Climate Change Scoping Plan. Sacramento, CA. California Air Resources Board. 2011. Final Supplement to the AB 32 Scoping Plan Functional Equivalent Document. Sacramento, CA. California Air Resources Board. 2013. California Air Resources Board Website http://www.arb.ca.gov California Department of Conservation, Division of Mines and Geology. 2000. A General Location Guide for Ultramafic Rocks in California – Areas More Likely to Contain Naturally Occurring Asbestos. Sacramento, CA. California Energy Commission. 2005. Inventory of California Greenhouse Gas Emissions and Sinks: 1990 to 2002 Update. Sacramento, CA. Air Quality Study 67 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 Contra Costa, County of. 2008. Contra Costa County Greenhouse Gas Emissions Inventory Report. Martinez, CA. Intergovernmental Panel on Climate Change, United Nations. 2007. Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the IPCC. Geneva, Switzerland. U. S. Environmental Protection Agency. 2006. Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2004. Washington, DC. World Meteorological Organization. 2005: Statement on the Status of the Global Climate in 2005: Geneva, 15 December 2005. Geneva, Switzerland. Personal Communications Matson, Mike. Principal. RMC Water and Environment. October 11, 2013 E-mail message to Wayne Shijo, KD Anderson & Associates. Air Quality Study 68 KD Anderson & Associates West Antioch Creek Channel Improvement Project October 21, 2013 TECHNICAL APPENDIX WEST ANTIOCH CREEK CHANNEL IMPROVEMENT PROJECT AIR QUALITY STUDY TECHNICAL APPENDIX Road Construction Emissions Model Output Reports With Dewatering Pump Emissions Included in Each Sub-Reach Activity Road Construction Emissions Model, Version 7.1.4 Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaust Fugitive DustProject Phases (English Units)ROG (lbs/day) CO (lbs/day) NOx (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) CO2 (lbs/day)Grubbing/Land Clearing5.0 23.5 23.9 23.9 1.9 22.0 6.3 1.7 4.6 3,493.1 Grading/Excavation- - - - - - - - - - Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (pounds/day)5.0 23.5 23.9 23.9 1.9 22.0 6.3 1.7 4.6 3,493.1 Total (tons/construction project)0.0 0.2 0.2 0.2 0.0 0.2 0.1 0.0 0.0 28.8 Notes: Project Start Year -> 2014Project Length (months) -> 1Total Project Area (acres) -> 1Maximum Area Disturbed/Day (acres) -> 1Total Soil Imported/Exported (yd3/day)->104 Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaust Fugitive DustProject Phases (Metric Units)ROG (kgs/day) CO (kgs/day) NOx (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) CO2 (kgs/day)Grubbing/Land Clearing2.3 10.7 10.9 10.9 0.9 10.0 2.9 0.8 2.1 1,587.8 Grading/Excavation- - - - - - - - - - Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (kilograms/day)2.3 10.7 10.9 10.9 0.9 10.0 2.9 0.8 2.1 1,587.8 Total (megagrams/construction project)0.0 0.2 0.2 0.2 0.0 0.2 0.0 0.0 0.0 26.1 Notes: Project Start Year -> 2014Project Length (months) -> 1Total Project Area (hectares) -> 0Maximum Area Disturbed/Day (hectares) -> 0Total Soil Imported/Exported (meters3/day)->80Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sume of exhaust and fugitive dust emissions shown in columns K and L.W Antioch Crk Sub-Reach A-1 DemolitionW Antioch Crk Sub-Reach A-1 DemolitionPM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sum of exhaust and fugitive dust emissions shown in columns K and L.10/18/2013W Antioch Crk Sub-Reach A-1 1 Demolition 10-15-13.xls Road Construction Emissions Model, Version 7.1.4 Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (English Units)ROG (lbs/day) CO (lbs/day) NOx (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) CO2 (lbs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation4.6 22.8 25.6 23.6 1.6 22.0 6.0 1.5 4.6 3,672.5 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (pounds/day)4.6 22.8 25.6 23.6 1.6 22.0 6.0 1.5 4.6 3,672.5 Total (tons/construction project)0.1 0.3 0.3 0.1 0.0 0.1 0.0 0.0 0.0 40.4 Notes: Project Start Year -> 2014Project Length (months) -> 1Total Project Area (acres) -> 1Maximum Area Disturbed/Day (acres) -> 1Total Soil Imported/Exported (yd3/day)->0Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (Metric Units)ROG (kgs/day) CO (kgs/day) NOx (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) CO2 (kgs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation2.1 10.4 11.7 10.7 0.7 10.0 2.7 0.7 2.1 1,669.3 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (kilograms/day)2.1 10.4 11.7 10.7 0.7 10.0 2.7 0.7 2.1 1,669.3 Total (megagrams/construction project)0.0 0.2 0.3 0.1 0.0 0.1 0.0 0.0 0.0 36.6 Notes: Project Start Year -> 2014Project Length (months) -> 1Total Project Area (hectares) -> 0Maximum Area Disturbed/Day (hectares) -> 0Total Soil Imported/Exported (meters3/day)->0Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sume of exhaust and fugitive dust emissions shown in columns K and L.W Antioch Crk Sub-Reach A-1 Culvert PlacementW Antioch Crk Sub-Reach A-1 Culvert PlacementPM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sum of exhaust and fugitive dust emissions shown in columns K and L.10/18/2013W Antioch Crk Sub-Reach A-1 2 Culvert Placement 10-15-13.xls Road Construction Emissions Model, Version 7.1.4 Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (English Units)ROG (lbs/day) CO (lbs/day) NOx (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) CO2 (lbs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation- - - - - - - - - - Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving3.9 17.7 18.1 1.3 1.3 - 1.2 1.2 - 2,633.1 Maximum (pounds/day)3.9 17.7 18.1 1.3 1.3 - 1.2 1.2 - 2,633.1 Total (tons/construction project)0.0 0.2 0.2 0.0 0.0 - 0.0 0.0 - 29.0 Notes: Project Start Year -> 2014Project Length (months) -> 1Total Project Area (acres) -> 1Maximum Area Disturbed/Day (acres) -> 1Total Soil Imported/Exported (yd3/day)->0Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (Metric Units)ROG (kgs/day) CO (kgs/day) NOx (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) CO2 (kgs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation- - - - - - - - - - Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving1.8 8.0 8.2 0.6 0.6 - 0.5 0.5 - 1,196.9 Maximum (kilograms/day)1.8 8.0 8.2 0.6 0.6 - 0.5 0.5 - 1,196.9 Total (megagrams/construction project)0.0 0.2 0.2 0.0 0.0 - 0.0 0.0 - 26.3 Notes: Project Start Year -> 2014Project Length (months) -> 1Total Project Area (hectares) -> 0Maximum Area Disturbed/Day (hectares) -> 0Total Soil Imported/Exported (meters3/day)->0Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sume of exhaust and fugitive dust emissions shown in columns K and L.W Antioch Crk Sub-Reach A-1 Reconstruct RdwayW Antioch Crk Sub-Reach A-1 Reconstruct RdwayPM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sum of exhaust and fugitive dust emissions shown in columns K and L.10/18/2013W Antioch Crk Sub-Reach A-1 3 Reconstruct Rdway 10-15-13.xls Road Construction Emissions Model, Version 7.1.4 Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (English Units)ROG (lbs/day) CO (lbs/day) NOx (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) CO2 (lbs/day)Grubbing/Land Clearing3.6 17.2 14.4 49.1 1.1 48.0 11.0 1.0 10.0 2,525.0 Grading/Excavation- - - - - - - - - - Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (pounds/day)3.6 17.2 14.4 49.1 1.1 48.0 11.0 1.0 10.0 2,525.0 Total (tons/construction project)0.0 0.1 0.1 0.3 0.0 0.3 0.1 0.0 0.1 13.9 Notes: Project Start Year -> 2014Project Length (months) -> 1Total Project Area (acres) -> 2Maximum Area Disturbed/Day (acres) -> 2Total Soil Imported/Exported (yd3/day)->0Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (Metric Units)ROG (kgs/day) CO (kgs/day) NOx (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) CO2 (kgs/day)Grubbing/Land Clearing1.6 7.8 6.6 22.3 0.5 21.8 5.0 0.4 4.5 1,147.7 Grading/Excavation- - - - - - - - - - Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (kilograms/day)1.6 7.8 6.6 22.3 0.5 21.8 5.0 0.4 4.5 1,147.7 Total (megagrams/construction project)0.0 0.1 0.1 0.2 0.0 0.2 0.1 0.0 0.0 12.6 Notes: Project Start Year -> 2014Project Length (months) -> 1Total Project Area (hectares) -> 1Maximum Area Disturbed/Day (hectares) -> 1Total Soil Imported/Exported (meters3/day)->0Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sume of exhaust and fugitive dust emissions shown in columns K and L.W Antioch Crk Sub-Reach A-2 DemolitionW Antioch Crk Sub-Reach A-2 DemolitionPM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sum of exhaust and fugitive dust emissions shown in columns K and L.10/18/2013W Antioch Crk Sub-Reach A-2 1 Demolition 10-15-13.xls Road Construction Emissions Model, Version 7.1.4 Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (English Units)ROG (lbs/day) CO (lbs/day) NOx (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) CO2 (lbs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation4.7 23.4 31.0 49.7 1.7 48.0 11.5 1.5 10.0 4,292.8 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (pounds/day)4.7 23.4 31.0 49.7 1.7 48.0 11.5 1.5 10.0 4,292.8 Total (tons/construction project)0.1 0.5 0.7 0.5 0.0 0.5 0.1 0.0 0.1 94.4 Notes: Project Start Year -> 2014Project Length (months) -> 2Total Project Area (acres) -> 2Maximum Area Disturbed/Day (acres) -> 2Total Soil Imported/Exported (yd3/day)->63Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (Metric Units)ROG (kgs/day) CO (kgs/day) NOx (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) CO2 (kgs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation2.2 10.6 14.1 22.6 0.8 21.8 5.2 0.7 4.5 1,951.3 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (kilograms/day)2.2 10.6 14.1 22.6 0.8 21.8 5.2 0.7 4.5 1,951.3 Total (megagrams/construction project)0.1 0.5 0.6 0.5 0.0 0.4 0.1 0.0 0.1 85.7 Notes: Project Start Year -> 2014Project Length (months) -> 2Total Project Area (hectares) -> 1Maximum Area Disturbed/Day (hectares) -> 1Total Soil Imported/Exported (meters3/day)->48Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sume of exhaust and fugitive dust emissions shown in columns K and L.W Antioch Crk Sub-Reach A-2 ExcavationW Antioch Crk Sub-Reach A-2 ExcavationPM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sum of exhaust and fugitive dust emissions shown in columns K and L.10/18/2013W Antioch Crk Sub-Reach A-2 2 Excavation 10-15-13.xls Road Construction Emissions Model, Version 7.1.4 Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (English Units)ROG (lbs/day) CO (lbs/day) NOx (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) CO2 (lbs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation3.5 17.3 17.1 49.1 1.1 48.0 10.9 0.9 10.0 2,866.6 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (pounds/day)3.5 17.3 17.1 49.1 1.1 48.0 10.9 0.9 10.0 2,866.6 Total (tons/construction project)0.1 0.4 0.4 0.5 0.0 0.5 0.1 0.0 0.1 63.1 Notes: Project Start Year -> 2014Project Length (months) -> 2Total Project Area (acres) -> 2Maximum Area Disturbed/Day (acres) -> 2Total Soil Imported/Exported (yd3/day)->0Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (Metric Units)ROG (kgs/day) CO (kgs/day) NOx (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) CO2 (kgs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation1.6 7.8 7.8 22.3 0.5 21.8 5.0 0.4 4.5 1,303.0 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (kilograms/day)1.6 7.8 7.8 22.3 0.5 21.8 5.0 0.4 4.5 1,303.0 Total (megagrams/construction project)0.1 0.3 0.3 0.5 0.0 0.4 0.1 0.0 0.1 57.2 Notes: Project Start Year -> 2014Project Length (months) -> 2Total Project Area (hectares) -> 1Maximum Area Disturbed/Day (hectares) -> 1Total Soil Imported/Exported (meters3/day)->0Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sume of exhaust and fugitive dust emissions shown in columns K and L.W Antioch Crk Sub-Reach A-2 Soil RemovalW Antioch Crk Sub-Reach A-2 Soil RemovalPM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sum of exhaust and fugitive dust emissions shown in columns K and L.10/18/2013W Antioch Crk Sub-Reach A-2 3 Soil Removal 10-15-13.xls Road Construction Emissions Model, Version 7.1.4 Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (English Units)ROG (lbs/day) CO (lbs/day) NOx (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) CO2 (lbs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation4.1 22.0 26.3 189.4 1.4 188.0 40.3 1.2 39.1 4,355.4 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (pounds/day)4.1 22.0 26.3 189.4 1.4 188.0 40.3 1.2 39.1 4,355.4 Total (tons/construction project)0.2 1.0 1.2 3.8 0.1 3.7 0.8 0.1 0.8 191.6 Notes: Project Start Year -> 2014Project Length (months) -> 4Total Project Area (acres) -> 9Maximum Area Disturbed/Day (acres) -> 9Total Soil Imported/Exported (yd3/day)->157Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (Metric Units)ROG (kgs/day) CO (kgs/day) NOx (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) CO2 (kgs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation1.9 10.0 12.0 86.1 0.6 85.5 18.3 0.5 17.8 1,979.7 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (kilograms/day)1.9 10.0 12.0 86.1 0.6 85.5 18.3 0.5 17.8 1,979.7 Total (megagrams/construction project)0.2 0.9 1.1 3.4 0.1 3.4 0.7 0.0 0.7 173.8 Notes: Project Start Year -> 2014Project Length (months) -> 4Total Project Area (hectares) -> 4Maximum Area Disturbed/Day (hectares) -> 4Total Soil Imported/Exported (meters3/day)->120Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sume of exhaust and fugitive dust emissions shown in columns K and L.W Antioch Crk Sub-Reach B-1W Antioch Crk Sub-Reach B-1PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sum of exhaust and fugitive dust emissions shown in columns K and L.10/18/2013W Antioch Crk Sub-Reach B-1 10-15-13.xls Road Construction Emissions Model, Version 7.1.4 Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (English Units)ROG (lbs/day) CO (lbs/day) NOx (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) CO2 (lbs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation4.1 21.7 24.1 57.3 1.3 56.0 12.8 1.1 11.6 3,988.7 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (pounds/day)4.1 21.7 24.1 57.3 1.3 56.0 12.8 1.1 11.6 3,988.7 Total (tons/construction project)0.1 0.5 0.5 0.6 0.0 0.6 0.1 0.0 0.1 87.8 Notes: Project Start Year -> 2014Project Length (months) -> 2Total Project Area (acres) -> 3Maximum Area Disturbed/Day (acres) -> 3Total Soil Imported/Exported (yd3/day)->94Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (Metric Units)ROG (kgs/day) CO (kgs/day) NOx (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) CO2 (kgs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation1.9 9.9 11.0 26.1 0.6 25.5 5.8 0.5 5.3 1,813.0 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (kilograms/day)1.9 9.9 11.0 26.1 0.6 25.5 5.8 0.5 5.3 1,813.0 Total (megagrams/construction project)0.1 0.4 0.5 0.5 0.0 0.5 0.1 0.0 0.1 79.6 Notes: Project Start Year -> 2014Project Length (months) -> 2Total Project Area (hectares) -> 1Maximum Area Disturbed/Day (hectares) -> 1Total Soil Imported/Exported (meters3/day)->72Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sume of exhaust and fugitive dust emissions shown in columns K and L.W Antioch Crk Sub-Reach B-2W Antioch Crk Sub-Reach B-2PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sum of exhaust and fugitive dust emissions shown in columns K and L.10/18/2013W Antioch Crk Sub-Reach B-2 10-15-13.xls Road Construction Emissions Model, Version 7.1.4 Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (English Units)ROG (lbs/day) CO (lbs/day) NOx (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) CO2 (lbs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation4.3 23.6 28.4 175.5 1.5 174.0 37.4 1.3 36.2 4,614.0 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (pounds/day)4.3 23.6 28.4 175.5 1.5 174.0 37.4 1.3 36.2 4,614.0 Total (tons/construction project)0.2 1.0 1.2 3.5 0.1 3.4 0.8 0.1 0.7 203.0 Notes: Project Start Year -> 2014Project Length (months) -> 4Total Project Area (acres) -> 9Maximum Area Disturbed/Day (acres) -> 9Total Soil Imported/Exported (yd3/day)->141Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (Metric Units)ROG (kgs/day) CO (kgs/day) NOx (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) CO2 (kgs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation2.0 10.7 12.9 79.8 0.7 79.1 17.0 0.6 16.5 2,097.3 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (kilograms/day)2.0 10.7 12.9 79.8 0.7 79.1 17.0 0.6 16.5 2,097.3 Total (megagrams/construction project)0.2 0.9 1.1 3.2 0.1 3.1 0.7 0.1 0.6 184.1 Notes: Project Start Year -> 2014Project Length (months) -> 4Total Project Area (hectares) -> 4Maximum Area Disturbed/Day (hectares) -> 4Total Soil Imported/Exported (meters3/day)->108Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sume of exhaust and fugitive dust emissions shown in columns K and L.W Antioch Crk Sub-Reach B-3W Antioch Crk Sub-Reach B-3PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sum of exhaust and fugitive dust emissions shown in columns K and L.10/18/2013W Antioch Crk Sub-Reach B-3 10-15-13.xls Road Construction Emissions Model, Version 7.1.4 Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (English Units)ROG (lbs/day) CO (lbs/day) NOx (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) CO2 (lbs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation4.2 23.1 24.3 21.4 1.4 20.0 5.3 1.2 4.2 3,941.8 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (pounds/day)4.2 23.1 24.3 21.4 1.4 20.0 5.3 1.2 4.2 3,941.8 Total (tons/construction project)0.1 0.8 0.8 0.3 0.0 0.3 0.1 0.0 0.1 130.1 Notes: Project Start Year -> 2014Project Length (months) -> 3Total Project Area (acres) -> 1Maximum Area Disturbed/Day (acres) -> 1Total Soil Imported/Exported (yd3/day)->26Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (Metric Units)ROG (kgs/day) CO (kgs/day) NOx (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) CO2 (kgs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation1.9 10.5 11.0 9.7 0.6 9.1 2.4 0.5 1.9 1,791.7 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (kilograms/day)1.9 10.5 11.0 9.7 0.6 9.1 2.4 0.5 1.9 1,791.7 Total (megagrams/construction project)0.1 0.7 0.7 0.3 0.0 0.3 0.1 0.0 0.1 118.0 Notes: Project Start Year -> 2014Project Length (months) -> 3Total Project Area (hectares) -> 0Maximum Area Disturbed/Day (hectares) -> 0Total Soil Imported/Exported (meters3/day)->20Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sume of exhaust and fugitive dust emissions shown in columns K and L.W Antioch Crk Sub-Reach B-4W Antioch Crk Sub-Reach B-4PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sum of exhaust and fugitive dust emissions shown in columns K and L.10/18/2013W Antioch Crk Sub-Reach B-4 10-15-13.xls Road Construction Emissions Model Output Reports With Dewatering Pump Emissions Not Included in Each Sub-Reach Activity Road Construction Emissions Model, Version 7.1.4 Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaust Fugitive DustProject Phases (English Units)ROG (lbs/day) CO (lbs/day) NOx (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) CO2 (lbs/day)Grubbing/Land Clearing2.6 15.4 15.2 23.2 1.2 22.0 5.7 1.1 4.6 2,506.0 Grading/Excavation- - - - - - - - - - Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (pounds/day)2.6 15.4 15.2 23.2 1.2 22.0 5.7 1.1 4.6 2,506.0 Total (tons/construction project)0.0 0.1 0.1 0.2 0.0 0.2 0.0 0.0 0.0 20.7 Notes: Project Start Year -> 2014Project Length (months) -> 1Total Project Area (acres) -> 1Maximum Area Disturbed/Day (acres) -> 1Total Soil Imported/Exported (yd3/day)->104 Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaust Fugitive DustProject Phases (Metric Units)ROG (kgs/day) CO (kgs/day) NOx (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) CO2 (kgs/day)Grubbing/Land Clearing1.2 7.0 6.9 10.6 0.6 10.0 2.6 0.5 2.1 1,139.1 Grading/Excavation- - - - - - - - - - Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (kilograms/day)1.2 7.0 6.9 10.6 0.6 10.0 2.6 0.5 2.1 1,139.1 Total (megagrams/construction project)0.0 0.1 0.1 0.2 0.0 0.2 0.0 0.0 0.0 18.8 Notes: Project Start Year -> 2014Project Length (months) -> 1Total Project Area (hectares) -> 0Maximum Area Disturbed/Day (hectares) -> 0Total Soil Imported/Exported (meters3/day)->80Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sume of exhaust and fugitive dust emissions shown in columns K and L.W Antioch Crk Sub-Reach A-1 DemolitionW Antioch Crk Sub-Reach A-1 DemolitionPM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sum of exhaust and fugitive dust emissions shown in columns K and L.10/16/2013W Antioch Crk Sub-Reach A-1 1 Demolition 10-16-13 No Pump Gen.xls Road Construction Emissions Model, Version 7.1.4 Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (English Units)ROG (lbs/day) CO (lbs/day) NOx (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) CO2 (lbs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation2.2 14.7 16.9 23.0 1.0 22.0 5.4 0.8 4.6 2,685.4 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (pounds/day)2.2 14.7 16.9 23.0 1.0 22.0 5.4 0.8 4.6 2,685.4 Total (tons/construction project)0.0 0.2 0.2 0.1 0.0 0.1 0.0 0.0 0.0 29.5 Notes: Project Start Year -> 2014Project Length (months) -> 1Total Project Area (acres) -> 1Maximum Area Disturbed/Day (acres) -> 1Total Soil Imported/Exported (yd3/day)->0Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (Metric Units)ROG (kgs/day) CO (kgs/day) NOx (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) CO2 (kgs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation1.0 6.7 7.7 10.4 0.4 10.0 2.5 0.4 2.1 1,220.7 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (kilograms/day)1.0 6.7 7.7 10.4 0.4 10.0 2.5 0.4 2.1 1,220.7 Total (megagrams/construction project)0.0 0.1 0.2 0.1 0.0 0.1 0.0 0.0 0.0 26.8 Notes: Project Start Year -> 2014Project Length (months) -> 1Total Project Area (hectares) -> 0Maximum Area Disturbed/Day (hectares) -> 0Total Soil Imported/Exported (meters3/day)->0Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sume of exhaust and fugitive dust emissions shown in columns K and L.W Antioch Crk Sub-Reach A-1 Culvert PlacementW Antioch Crk Sub-Reach A-1 Culvert PlacementPM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sum of exhaust and fugitive dust emissions shown in columns K and L.10/16/2013W Antioch Crk Sub-Reach A-1 2 Culvert Placement 10-16-13 No Pump Gen.xls Road Construction Emissions Model, Version 7.1.4 Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (English Units)ROG (lbs/day) CO (lbs/day) NOx (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) CO2 (lbs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation- - - - - - - - - - Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving1.5 9.6 9.3 0.6 0.6 - 0.5 0.5 - 1,646.0 Maximum (pounds/day)1.5 9.6 9.3 0.6 0.6 - 0.5 0.5 - 1,646.0 Total (tons/construction project)0.0 0.1 0.1 0.0 0.0 - 0.0 0.0 - 18.1 Notes: Project Start Year -> 2014Project Length (months) -> 1Total Project Area (acres) -> 1Maximum Area Disturbed/Day (acres) -> 1Total Soil Imported/Exported (yd3/day)->0Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (Metric Units)ROG (kgs/day) CO (kgs/day) NOx (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) CO2 (kgs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation- - - - - - - - - - Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving0.7 4.3 4.2 0.3 0.3 - 0.2 0.2 - 748.2 Maximum (kilograms/day)0.7 4.3 4.2 0.3 0.3 - 0.2 0.2 - 748.2 Total (megagrams/construction project)0.0 0.1 0.1 0.0 0.0 - 0.0 0.0 - 16.4 Notes: Project Start Year -> 2014Project Length (months) -> 1Total Project Area (hectares) -> 0Maximum Area Disturbed/Day (hectares) -> 0Total Soil Imported/Exported (meters3/day)->0Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sume of exhaust and fugitive dust emissions shown in columns K and L.W Antioch Crk Sub-Reach A-1 Reconstruct RdwayW Antioch Crk Sub-Reach A-1 Reconstruct RdwayPM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sum of exhaust and fugitive dust emissions shown in columns K and L.10/16/2013W Antioch Crk Sub-Reach A-1 3 Reconstruct Rdway 10-16-13 No Pump Gen.xls Road Construction Emissions Model, Version 7.1.4 Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (English Units)ROG (lbs/day) CO (lbs/day) NOx (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) CO2 (lbs/day)Grubbing/Land Clearing1.2 9.1 5.7 48.5 0.5 48.0 10.3 0.4 10.0 1,538.0 Grading/Excavation- - - - - - - - - - Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (pounds/day)1.2 9.1 5.7 48.5 0.5 48.0 10.3 0.4 10.0 1,538.0 Total (tons/construction project)0.0 0.1 0.0 0.3 0.0 0.3 0.1 0.0 0.1 8.5 Notes: Project Start Year -> 2014Project Length (months) -> 1Total Project Area (acres) -> 2Maximum Area Disturbed/Day (acres) -> 2Total Soil Imported/Exported (yd3/day)->0Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (Metric Units)ROG (kgs/day) CO (kgs/day) NOx (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) CO2 (kgs/day)Grubbing/Land Clearing0.5 4.2 2.6 22.0 0.2 21.8 4.7 0.2 4.5 699.1 Grading/Excavation- - - - - - - - - - Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (kilograms/day)0.5 4.2 2.6 22.0 0.2 21.8 4.7 0.2 4.5 699.1 Total (megagrams/construction project)0.0 0.0 0.0 0.2 0.0 0.2 0.1 0.0 0.0 7.7 Notes: Project Start Year -> 2014Project Length (months) -> 1Total Project Area (hectares) -> 1Maximum Area Disturbed/Day (hectares) -> 1Total Soil Imported/Exported (meters3/day)->0Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sume of exhaust and fugitive dust emissions shown in columns K and L.W Antioch Crk Sub-Reach A-2 DemolitionW Antioch Crk Sub-Reach A-2 DemolitionPM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sum of exhaust and fugitive dust emissions shown in columns K and L.10/16/2013W Antioch Crk Sub-Reach A-2 1 Demolition 10-16-13 No Pump Gen.xls Road Construction Emissions Model, Version 7.1.4 Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (English Units)ROG (lbs/day) CO (lbs/day) NOx (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) CO2 (lbs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation2.3 15.3 22.3 49.0 1.0 48.0 10.9 0.9 10.0 3,305.7 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (pounds/day)2.3 15.3 22.3 49.0 1.0 48.0 10.9 0.9 10.0 3,305.7 Total (tons/construction project)0.1 0.3 0.5 0.5 0.0 0.5 0.1 0.0 0.1 72.7 Notes: Project Start Year -> 2014Project Length (months) -> 2Total Project Area (acres) -> 2Maximum Area Disturbed/Day (acres) -> 2Total Soil Imported/Exported (yd3/day)->63Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (Metric Units)ROG (kgs/day) CO (kgs/day) NOx (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) CO2 (kgs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation1.0 7.0 10.1 22.3 0.5 21.8 4.9 0.4 4.5 1,502.6 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (kilograms/day)1.0 7.0 10.1 22.3 0.5 21.8 4.9 0.4 4.5 1,502.6 Total (megagrams/construction project)0.0 0.3 0.4 0.5 0.0 0.4 0.1 0.0 0.1 66.0 Notes: Project Start Year -> 2014Project Length (months) -> 2Total Project Area (hectares) -> 1Maximum Area Disturbed/Day (hectares) -> 1Total Soil Imported/Exported (meters3/day)->48Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sume of exhaust and fugitive dust emissions shown in columns K and L.W Antioch Crk Sub-Reach A-2 ExcavationW Antioch Crk Sub-Reach A-2 ExcavationPM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sum of exhaust and fugitive dust emissions shown in columns K and L.10/16/2013W Antioch Crk Sub-Reach A-2 2 Excavation 10-16-13 No Pump Gen.xls Road Construction Emissions Model, Version 7.1.4 Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (English Units)ROG (lbs/day) CO (lbs/day) NOx (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) CO2 (lbs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation1.1 9.2 8.3 48.4 0.4 48.0 10.3 0.3 10.0 1,879.6 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (pounds/day)1.1 9.2 8.3 48.4 0.4 48.0 10.3 0.3 10.0 1,879.6 Total (tons/construction project)0.0 0.2 0.2 0.5 0.0 0.5 0.1 0.0 0.1 41.4 Notes: Project Start Year -> 2014Project Length (months) -> 2Total Project Area (acres) -> 2Maximum Area Disturbed/Day (acres) -> 2Total Soil Imported/Exported (yd3/day)->0Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (Metric Units)ROG (kgs/day) CO (kgs/day) NOx (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) CO2 (kgs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation0.5 4.2 3.8 22.0 0.2 21.8 4.7 0.1 4.5 854.3 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (kilograms/day)0.5 4.2 3.8 22.0 0.2 21.8 4.7 0.1 4.5 854.3 Total (megagrams/construction project)0.0 0.2 0.2 0.4 0.0 0.4 0.1 0.0 0.1 37.5 Notes: Project Start Year -> 2014Project Length (months) -> 2Total Project Area (hectares) -> 1Maximum Area Disturbed/Day (hectares) -> 1Total Soil Imported/Exported (meters3/day)->0Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sume of exhaust and fugitive dust emissions shown in columns K and L.W Antioch Crk Sub-Reach A-2 Soil RemovalW Antioch Crk Sub-Reach A-2 Soil RemovalPM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sum of exhaust and fugitive dust emissions shown in columns K and L.10/16/2013W Antioch Crk Sub-Reach A-2 3 Soil Removal 10-16-13 No Pump Gen.xls Road Construction Emissions Model, Version 7.1.4 Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (English Units)ROG (lbs/day) CO (lbs/day) NOx (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) CO2 (lbs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation1.7 13.9 17.6 188.7 0.7 188.0 39.7 0.6 39.1 3,368.3 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (pounds/day)1.7 13.9 17.6 188.7 0.7 188.0 39.7 0.6 39.1 3,368.3 Total (tons/construction project)0.1 0.6 0.8 3.8 0.0 3.7 0.8 0.0 0.8 148.2 Notes: Project Start Year -> 2014Project Length (months) -> 4Total Project Area (acres) -> 9Maximum Area Disturbed/Day (acres) -> 9Total Soil Imported/Exported (yd3/day)->157Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (Metric Units)ROG (kgs/day) CO (kgs/day) NOx (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) CO2 (kgs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation0.8 6.3 8.0 85.8 0.3 85.5 18.0 0.3 17.8 1,531.0 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (kilograms/day)0.8 6.3 8.0 85.8 0.3 85.5 18.0 0.3 17.8 1,531.0 Total (megagrams/construction project)0.1 0.6 0.7 3.4 0.0 3.4 0.7 0.0 0.7 134.4 Notes: Project Start Year -> 2014Project Length (months) -> 4Total Project Area (hectares) -> 4Maximum Area Disturbed/Day (hectares) -> 4Total Soil Imported/Exported (meters3/day)->120Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sume of exhaust and fugitive dust emissions shown in columns K and L.W Antioch Crk Sub-Reach B-1W Antioch Crk Sub-Reach B-1PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sum of exhaust and fugitive dust emissions shown in columns K and L.10/16/2013W Antioch Crk Sub-Reach B-1 10-16-13 No Pump Gen.xls Road Construction Emissions Model, Version 7.1.4 Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (English Units)ROG (lbs/day) CO (lbs/day) NOx (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) CO2 (lbs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation1.6 13.6 15.3 56.7 0.7 56.0 12.2 0.5 11.6 3,001.6 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (pounds/day)1.6 13.6 15.3 56.7 0.7 56.0 12.2 0.5 11.6 3,001.6 Total (tons/construction project)0.0 0.3 0.3 0.6 0.0 0.6 0.1 0.0 0.1 66.0 Notes: Project Start Year -> 2014Project Length (months) -> 2Total Project Area (acres) -> 3Maximum Area Disturbed/Day (acres) -> 3Total Soil Imported/Exported (yd3/day)->94Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (Metric Units)ROG (kgs/day) CO (kgs/day) NOx (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) CO2 (kgs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation0.7 6.2 7.0 25.8 0.3 25.5 5.5 0.2 5.3 1,364.4 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (kilograms/day)0.7 6.2 7.0 25.8 0.3 25.5 5.5 0.2 5.3 1,364.4 Total (megagrams/construction project)0.0 0.3 0.3 0.5 0.0 0.5 0.1 0.0 0.1 59.9 Notes: Project Start Year -> 2014Project Length (months) -> 2Total Project Area (hectares) -> 1Maximum Area Disturbed/Day (hectares) -> 1Total Soil Imported/Exported (meters3/day)->72Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sume of exhaust and fugitive dust emissions shown in columns K and L.W Antioch Crk Sub-Reach B-2W Antioch Crk Sub-Reach B-2PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sum of exhaust and fugitive dust emissions shown in columns K and L.10/16/2013W Antioch Crk Sub-Reach B-2 10-16-13 No Pump Gen.xls Road Construction Emissions Model, Version 7.1.4 Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (English Units)ROG (lbs/day) CO (lbs/day) NOx (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) CO2 (lbs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation1.8 15.5 19.6 174.8 0.8 174.0 36.8 0.6 36.2 3,626.9 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (pounds/day)1.8 15.5 19.6 174.8 0.8 174.0 36.8 0.6 36.2 3,626.9 Total (tons/construction project)0.1 0.7 0.9 3.5 0.0 3.4 0.7 0.0 0.7 159.6 Notes: Project Start Year -> 2014Project Length (months) -> 4Total Project Area (acres) -> 9Maximum Area Disturbed/Day (acres) -> 9Total Soil Imported/Exported (yd3/day)->141Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (Metric Units)ROG (kgs/day) CO (kgs/day) NOx (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) CO2 (kgs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation0.8 7.0 8.9 79.4 0.4 79.1 16.7 0.3 16.5 1,648.6 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (kilograms/day)0.8 7.0 8.9 79.4 0.4 79.1 16.7 0.3 16.5 1,648.6 Total (megagrams/construction project)0.1 0.6 0.8 3.2 0.0 3.1 0.7 0.0 0.6 144.7 Notes: Project Start Year -> 2014Project Length (months) -> 4Total Project Area (hectares) -> 4Maximum Area Disturbed/Day (hectares) -> 4Total Soil Imported/Exported (meters3/day)->108Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sume of exhaust and fugitive dust emissions shown in columns K and L.W Antioch Crk Sub-Reach B-3W Antioch Crk Sub-Reach B-3PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sum of exhaust and fugitive dust emissions shown in columns K and L.10/16/2013W Antioch Crk Sub-Reach B-3 10-16-13 No Pump Gen.xls Road Construction Emissions Model, Version 7.1.4 Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (English Units)ROG (lbs/day) CO (lbs/day) NOx (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM10 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) PM2.5 (lbs/day) CO2 (lbs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation1.7 15.0 15.5 20.7 0.7 20.0 4.7 0.6 4.2 2,954.7 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (pounds/day)1.7 15.0 15.5 20.7 0.7 20.0 4.7 0.6 4.2 2,954.7 Total (tons/construction project)0.1 0.5 0.5 0.3 0.0 0.3 0.1 0.0 0.1 97.5 Notes: Project Start Year -> 2014Project Length (months) -> 3Total Project Area (acres) -> 1Maximum Area Disturbed/Day (acres) -> 1Total Soil Imported/Exported (yd3/day)->26Emission Estimates for ->TotalExhaust Fugitive DustTotalExhaustFugitive DustProject Phases (Metric Units)ROG (kgs/day) CO (kgs/day) NOx (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM10 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) PM2.5 (kgs/day) CO2 (kgs/day)Grubbing/Land Clearing- - - - - - - - - - Grading/Excavation0.8 6.8 7.1 9.4 0.3 9.1 2.1 0.3 1.9 1,343.0 Drainage/Utilities/Sub-Grade - - - - - - - - - - Paving- - - - - - - - - - Maximum (kilograms/day)0.8 6.8 7.1 9.4 0.3 9.1 2.1 0.3 1.9 1,343.0 Total (megagrams/construction project)0.1 0.4 0.5 0.3 0.0 0.3 0.1 0.0 0.1 88.4 Notes: Project Start Year -> 2014Project Length (months) -> 3Total Project Area (hectares) -> 0Maximum Area Disturbed/Day (hectares) -> 0Total Soil Imported/Exported (meters3/day)->20Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sume of exhaust and fugitive dust emissions shown in columns K and L.W Antioch Crk Sub-Reach B-4W Antioch Crk Sub-Reach B-4PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.PM10 and PM2.5 estimates assume 50% control of fugitive dust from watering and associated dust control measures if a minimum number of water trucks are specified.Total PM10 emissions shown in column F are the sum of exhaust and fugitive dust emissions shown in columns H and I. Total PM2.5 emissions shown in Column J are the sum of exhaust and fugitive dust emissions shown in columns K and L.10/16/2013W Antioch Crk Sub-Reach B-4 10-16-13 No Pump Gen.xls Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project APPENDIX B Biological Resources Assessment BIOLOGICAL RESOURCES ASSESSMENT WEST ANTIOCH CREEK CHANNEL IMPROVEMENTS CITY OF ANTIOCH, CONTRA COSTA COUNTY, CALIFORNIA Prepared for Mr. Scott Buenting, P.E., Associate Engineer City of Antioch 200 H Street Antioch, California 94531 832 Escobar Street Martinez, California 94553 (925) 228-1027 APRIL 2013 REVISED SEPTEMBER 2013 Table of Contents West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California ii TABLE OF CONTENTS Section 1. Introduction......................................................................................................1 1.1. Purpose and Need.........................................................................................................1 1.2. Project Background........................................................................................................1 1.3. Project Description.........................................................................................................2 Section 2. Study Methods ................................................................................................4 2.1. Definitions ......................................................................................................................4 2.2. Significance Criteria.......................................................................................................5 2.3. Data Resources .............................................................................................................6 2.4. Regulatory Framework...................................................................................................7 2.5. Personnel and Field Investigation..................................................................................9 2.6. Limitations....................................................................................................................10 Section 3. Environmental Setting...................................................................................12 3.1. Setting..........................................................................................................................12 3.1.1 Regional Setting............................................................................................12 3.1.2 Local Setting..................................................................................................12 3.2. Hydrology Characteristics............................................................................................13 3.3. Vegetation/Land Cover Types......................................................................................13 3.3.1 Ruderal Grassland ........................................................................................14 3.3.2 Alkali Grassland ...........................................................................................17 3.3.3 Seasonal Wetland.........................................................................................17 3.3.4 Alkali Wetland................................................................................................18 3.3.5 Permanent Wetland.......................................................................................18 3.3.6 Riparian Woodland/Scrub .............................................................................19 3.3.7 Stream...........................................................................................................19 3.3.8 Urban.............................................................................................................20 3.4. Movement Corridors and Habitat Fragmentation.........................................................20 Section 4. Assessment and Findings.............................................................................22 4.1. Sensitive Natural Communities....................................................................................22 4.2. Special-Status Plants...................................................................................................23 4.2.1 HCP/NCCP Covered and No-Take Plant Species........................................24 4.2.2 Federal and/or State Listed and California Rare Plant Species....................26 4.2.3 California Rare Plant Rank Species..............................................................26 4.3. Special-Status Wildlife .................................................................................................26 4.3.1 HCP/NCCP Planning Surveys.......................................................................28 4.3.2 Federal/State Listed, Proposed, Candidate, or Fully Protected Fish and Wildlife Species.............................................................................................29 4.3.3 Sensitive and Locally Rare Wildlife Species .................................................39 Section 5. Conclusions, Avoidance and Minimization Measures...................................53 5.1. Conclusions..................................................................................................................53 5.1.1 Critical Habitat...............................................................................................53 5.1.2 Sensitive Natural Communities.....................................................................53 5.1.3 Special-Status Plants....................................................................................53 5.1.4 Special-Status Wildlife...................................................................................54 5.2. Survey Recommendations...........................................................................................54 5.2.1 Wetland Resources.......................................................................................54 5.2.2 Special-Status Plants....................................................................................54 Table of Contents West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California iii 5.3. Avoidance and Minimization Measures........................................................................55 5.3.1 Sensitive Natural Communities.....................................................................55 5.3.2 Special-Status Plants....................................................................................55 5.3.3 Special-Status Wildlife...................................................................................55 5.3.4 General Avoidance and Minimization Recommendations.............................55 Section 6. References....................................................................................................57 LIST OF TABLES Table 1. Parcels or Portions of Parcels in the Study Area............................................................4 Table 2. Covered Species in the HCP/NCCP...............................................................................9 Table 3. No-Take Species in the HCP/NCCP...............................................................................9 Table 2. Land Cover Types in the Study Area............................................................................14 Table 3. Vegetation Community Classifications Systems Comparisons.....................................15 Table 6. Potentially Occurring Special-Status Plant Species......................................................23 Table 7. HCP/NCCP Covered and No Take Plant Species........................................................24 Table 8. Potentially Occurring Special-Status Fish and Wildlife Species ...................................27 Table 9. Results of Planning Surveys for Covered and No-Take Wildlife Species.....................28 LIST OF FIGURES Figure 1. Project Vicinity.............................................................................................................66 Figure 2. Project Components....................................................................................................67 Figure 3. Study Area on USGS Quadrangle...............................................................................68 Figure 4. Aerial View of the Study Area......................................................................................69 Figure 5. Hydrologic Connection of West Antioch Creek............................................................70 Figure 6. Land Cover Types in the Study Area...........................................................................71 Figure 7. Special-Status Plant Species within the Vicinity..........................................................72 Figure 8. Special-Status Wildlife Species within the Vicinity.......................................................73 Figure 9. Delta Smelt Designated Critical Habitat.......................................................................74 Figure 10. California Red-Legged Frog Habitat..........................................................................75 Figure 11. California Black Rail Habitat ......................................................................................76 Figure 12. White-Tailed Kite, Burrowing Owl and Tricolored Blackbird Habitat..........................77 Figure 13. Western Pond Turtle Habitat .....................................................................................78 LIST OF APPENDICES APPENDIX A Figures ..........................................................................................................65 APPENDIX B Laws, Ordinances & Regulations..................................................................79 APPENDIX C Special-Status Plant Species Known to Occur or Potentially Occurring in the Project Vicinity ....................................................................................................87 APPENDIX D Special-Status Fish and Wildlife Species Known to Occur or Potentially Occurring in the Project Vicinity ................................................................100 APPENDIX E California Natural Diversity Database Species List.....................................120 APPENDIX F U.S. Fish and Wildlife Service Species List.................................................127 Table of Contents West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California iv APPENDIX F Project Photographs....................................................................................138 Section 1 Introduction West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 1 Section 1. INTRODUCTION As requested by the City of Antioch, Nomad Ecology prepared this Biological Resources Assessment for the West Antioch Creek Channel Improvements Project located in the City of Antioch in Contra Costa County, California (Figure 1). The study area for this report comprises approximately 72.4 acres and includes portions of 40 parcels. The study area contains a 0.79 mile stretch of West Antioch Creek. A Biological Resources Assessment was prepared in 2009 for a 4.9-acre portion of this project area (previously called Drainage Area 55 Box Culvert at 10th Street), as requested by the Contra Costa County Public Works Department. The original Drainage Area 55 Box Culvert at 10th Street project is identified as a covered project in the East Contra Costa County Habitat Conservation Plan and Natural Community Conservation Plan (HCP/NCCP) (Jones & Stokes 2006). The remainder of the project is not within the HCP/NCCP Inventory Area. The City of Antioch may apply for coverage for a portion or all of the project under the HCP/NCCP. This report is presented under the assumption that the project may be permitted through the HCP, may be permitted via typical non-HCP project permitting, or a combination of the two. This report provides an assessment of existing conditions, evaluates habitat suitability for special-status plant and wildlife species, analyzes potential project impacts to biological resources, and provides recommendations for impact avoidance and minimization. This report identifies Planning Level Surveys required by the HCP/NCCP and complies with all requirements of the HCP/NCCP. This report also addresses biological resources, as required by the California Environmental Quality Act (CEQA). A Wetland Delineation and Preliminary Jurisdictional Determination report (Nomad 2013a) and Botanical Resource Survey Report (Nomad 2013b) have been prepared for this project. 1.1. PURPOSE AND NEED The purpose of the proposed project is to reduce flooding in the project area by increasing the capacity of the West Antioch Creek channel between West 10th Street and West 8th Street and re-establish the capacity of the channel downstream of West 8th Street to the BNSF railroad trestle. 1.2. PROJECT BACKGROUND In 1993, the Contra Costa County Flood Control District completed channel improvements for West Antioch Creek (1993 Project). The 1993 Project improved the conveyance capacity of the West Antioch Creek channel, from approximately 200 feet north of the BNSF railroad crossing upstream to approximately West 8th Street in the City of Antioch, to convey up to the 25-year storm event flows. The 25-year level of protection was the design conveyance criterion for the 1993 Project. The available funding at the time did not allow channel improvements to extend upstream of West 8th Street. As a result, a 650-foot segment of undersized channel exists between the southern limits of the 1993 Project upstream to the earthen trapezoidal channel on the Contra Costa County Fairgrounds property south of West 10th Street. This 650-foot segment of West Antioch Creek channel transitions from an earthen trapezoidal channel near the Contra Costa County Fairgrounds, to structural plate steel arch culverts under West 10th Street, then to a narrow concrete ditch in the stretch of the creek between West 10th Street and West 8th Street. This segment of the West Antioch Creek channel has the capacity to convey runoff from an approximately one to two year return period storm event, as compared to the Contra Costa County design criteria of a 100-year storm for watersheds this size. Furthermore, the previously improved channel Section 1 Introduction West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 2 segment of West Antioch Creek (1993 Project) has significantly diminished capacity due to sediment deposition. As a result, annual flooding can occur adjacent to West Antioch Creek near the intersection of West 10th Street and O Street. Flooding in this area is a public safety concern, results in property damage, and creates economic damages. Frequent flooding results in road closures at the intersection of West 10th Street and O Street and along 4th Street up to several times a year. Road closures result in the loss of commercial business which has led major businesses to relocate out of the area. Furthermore, the effort by the City to enforce road closures, fight floodwaters, and to clean up debris after flooding recedes is a drain on the City’s resources and budget. The Proposed Project was developed to increase the capacity of the West Antioch Creek channel to reduce flooding in the area and the impacts that result from it. 1.3. PROJECT DESCRIPTION The Proposed Project is intended to reduce flooding in the project area. Currently within the project area the West Antioch Creek channel transitions from structural plate steel arch culverts under West 10th street, to a concrete-lined ditch covered by wooden planking under a parking lot at 1400 West Tenth Street, to an open concrete-lined ditch adjacent to a covered parking structure for an apartment building, to an earthen channel, to a concrete box culverts under West Fourth Street, to a concrete channel that extends approximately 400 feet north of West Fourth Street, to an earthen channel that continues north to the BNSF railroad trestle. The Proposed Project would alter two adjacent reaches of the channel. Project work in Reach A (conveyance improvements) would increase the capacity of the conveyance system between West 10th Street to the 1993 Project limits (approximately West 8th Street) (Figure 2). Project work in Reach B (desilting) would desilt the channel between the 1993 Project limits at approximately West 8th Street to approximately 200 feet north of the BNSF railroad trestle. Either reach can be improved independently from the other or concurrently, but work in both reaches must be conducted in order realize improved levels of flood protection. Reach A – Conveyance Improvements Reach A conveyance improvements would include the installation of four pre-cast concrete box culverts across West 10th Street and a new earthen channel from West 10th Street to the 1993 Project limits. Four barrels of pre-cast concrete box culverts measuring 14 feet by 7 feet each would be used for a total length of approximately 100 feet. The new earthen channel would avoid impacting existing buildings on a privately owned parcel and would require the City to acquire a permanent easement or right-of-way along the eastern parcel boundary. This design would allow for 25-year storm event flows. This design would replace 400 feet of open, lined, channel (~0.25 acres) with wider earthen channel and add 200 feet of open earthen channel (total earthen channel area ~1.3 acres). A total of 0.5-acre of paved area currently used for parking would be converted to earthen channel. The northern section of 1400 West Tenth Street, including 0.2-acre of parking and access to service bays would be converted to earthen channel or become inaccessible. An additional 40 linear feet of parking structure associated with an apartment complex would be relocated. Reach B – Desilting Project work in Reach B (desilting) would include the removal of accumulated sediment from the earthen channel from the 1993 Project limits downstream to approximately 200 feet north of the BNSF railroad trestle. Approximately 3,000 linear feet of channel would be desilted. Approximately 30,000 cubic yards of sediment accumulated since the completion of the 1993 Project would be removed from the channel to re-establish the 1993 Project design contours, restoring the design capacity of the channel. Depending on the characterization of the material that is removed, it would be disposed at Jersey Island for use in levee Section 1 Introduction West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 3 buttress construction, Ironhouse Sanitary District’s Wastewater Treatment Plant, Keller Canyon Landfill or another suitable facility. In addition to sediment, the project would remove approximately 7,580 cubic yards of decayed marsh vegetation, which would be disposed of at Jersey Island, Keller Canyon Landfill, or a suitable nearby composting facility. Section 2 Study Methods West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 4 Section 2. STUDY METHODS 2.1. DEFINITIONS The following terms were used to evaluate the sensitivity of on-site biological resources and potential impacts of the proposed project. Terms and definitions are derived from the CEQA Guidelines and regulatory agencies, where applicable. Study Area The study area refers to the area where vegetation types were mapped and habitat was surveyed. The study area for this report comprises approximately 72.4 acres and includes portions of 40 parcels (Table 1). The analysis for this report extends beyond the immediate study area to address potential impacts to special-status wildlife species that could result from construction of the project. Table 1. Parcels or Portions of Parcels in the Study Area ASSESSOR’S PARCEL NUMBER (APN) 066-081-XXX 074-040-047 074-130-038 074-130-067 066-110-005 074-040-XXX 074-130-040 074-130-068 066-110-009 074-130-002 074-130-050 074-130-069 067-010-003 074-130-011 074-130-053 074-130-074 074-030-003 074-130-012 074-130-056 074-130-076 074-040-023 074-130-025 074-130-057 074-130-077 074-040-035 074-130-031 074-130-058 074-130-080 074-040-036 074-130-032 074-130-060 074-130-081 074-040-044 074-130-033 074-130-061 074-130-082 074-040-046 074-130-035 074-130-064 074-130-XXX Project Footprint The project area is based on construction plans and will be smaller than the study area. Construction-related activities within the project footprint include soils excavation, culvert installation, and erosion protection installation. Action Area Defined by the U.S. Fish and Wildlife Service (USFWS) as the area directly or indirectly affected by the proposed action and not merely the immediate area involved in the action. The area is typically larger than the project area and may extend beyond the study area to account for direct and indirect effects to listed species. Direct Impact Impacts (or primary effects) that are caused by the Project and occur at the same time and place [CEQA Guidelines, Title 14 CCR, Section 15358(a)(1)]. Indirect Impact Impacts (or secondary effects) that are caused by the Project and are later in time or farther removed in distance, but are still reasonably foreseeable. These may include growth-inducing effects and other effects related to induced changes in the pattern of land use, population density, or growth rate, and related effects on Section 2 Study Methods West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 5 air and water and other natural systems, including ecosystems [CEQA Guidelines, Title 14 CCR, Section 15358(a)(2)]. Cumulative Impact Two or more individual effects which, when considered together, are considerable or which compound or increase other environmental impacts. The individual effects may be changes resulting from a single project or a number of separate projects. The cumulative impact from several projects is the change in the environment which results from the incremental impact of the project when added to other closely related past, present, and reasonably foreseeable probable future projects. Cumulative impacts can result from individually minor but collectively significant projects taking place over a period of time [CEQA Guidelines, Title 14 CCR, Section 15355]. Critical Habitat Defined by the Endangered Species Act (ESA), as amended (Code of Federal Regulations, Title 50, Section 17), as “a specific geographic area(s) that is essential for the conservation of a threatened or endangered species and that may require special management and protection. Critical habitat may include an area that is not currently occupied by the species but that will be needed for its recovery.” Critical habitat designations are published in the Federal Register. The final boundaries of the critical habitat area are also published in the Federal Register for federally listed species by USFWS and NOAA Fisheries. DPS A distinct population segment (DPS) is a vertebrate population or group of populations that are distinct from other populations of the species and significant in relation to the entire species. The ESA provides for listing species, subspecies, or distinct population segments of vertebrate species. ESU An evolutionarily significant unit (ESU) is a population or group of populations that is substantially reproductively isolated from other conspecific populations and that represents an important component of the evolutionary legacy of the species. The ESU policy for Pacific salmon defines the criteria for identifying a Pacific salmon population as a distinct population segment (DPS), which can be listed under the ESA. 2.2. SIGNIFICANCE CRITERIA The significance criteria are based in part on the Environmental Checklist (CEQA Guidelines Appendix G [Title 14 CCR, Section 15000-15387]). These criteria are used to determine the extent to which the proposed project would impact sensitive biological resources. The threshold of significance may vary for each species or habitat, and is determined by the lead agency. Using these guidelines, the Project would result in a significant impact if it would:  Have a substantial adverse effect, either directly or through habitat modifications, on any species identified as a candidate, sensitive, or special-status species in local or regional plans, policies, or regulations, or by the California Department of Fish and Game or U.S. Fish and Wildlife Service.  Have a substantial adverse effect on any riparian habitat or other sensitive natural community identified in local or regional plans, policies, regulations or by the California Department of Fish and Wildlife or U.S. Fish and Wildlife Service. Section 2 Study Methods West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 6  Have a substantial adverse effect on federally protected wetlands as defined by Section 404 of the Clean Water Act (including, but not limited to, marsh, vernal pool, coastal, etc.) through direct removal, filling, hydrological interruption, or other means.  Interfere substantially with the movement of any native resident or migratory fish or wildlife species or with established native resident or migratory wildlife corridors, or impede the use of native wildlife nursery sites.  Conflict with any local policies or ordinances protecting biological resources, such as a tree preservation policy or ordinance.  Conflict with the provisions of an adopted Habitat Conservation Plan, Natural Community Conservation Plan, or other approved local, regional, or state habitat conservation plan. 2.3. DATA RESOURCES Prior to conducting the field evaluation, various data sources were examined for listed and special-status plant and wildlife species, and sensitive natural communities: U.S. Fish and Wildlife Service (USFWS):  Endangered and Threatened Wildlife and Plants (USFWS 1999, 2008)  Federal Endangered and Threatened Species that Occur in or may be Affected by Projects in Contra Costa County (USFWS 2013a)  Federal Endangered and Threatened Species that Occur in or may be Affected by Projects in the Antioch North, Antioch South, Bird’s Landing, Brentwood, Clayton, Denverton, Honker Bay, Jersey Island, and Rio Vista USGS 7 ½ Minute Quads (USFWS 2013b)  National Wetland Inventory for the Antioch North 7.5-minute USGS topographic quadrangle (USFWS 2013c) National Oceanic and Atmospheric Administration Fisheries (NOAA):  Endangered and Threatened Species; Establishment of Species of Concern List, Addition of Species to Species of Concern List, Description of Factors for Identifying Species of Concern, and Revision of Candidate Species List Under the Endangered Species Act (NOAA 2004)  Endangered and Threatened Species; Revision of Species of Concern List, Candidate Species Definition, and Candidate Species List (NOAA 2006) California Department of Fish and Wildlife1 (CDFW):  List of California Vegetation Alliances and Associations. The Vegetation Classification and Mapping Program (CDFG 2010)  State and Federally Listed Endangered, Threatened and Rare Plants of California (CDFW 2013b)  State and Federally Listed Endangered and Threatened Animals of California (CDFW 2013c)  Special Vascular Plants, Bryophytes, Lichens List (CDFW 2013d)  Special Animals (CDFG 2011) 1 Formerly the California Department of Fish and Game (CDFG). The change to California Department of Fish and Wildlife occurred on January 1, 2013. Section 2 Study Methods West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 7  California Natural Diversity Database (CNDDB) Query for the Antioch North, Antioch South, Bird’s Landing, Brentwood, Clayton, Denverton, Honker Bay, Jersey Island, and Rio Vista USGS 7 ½ Minute Quads (CDFW 2013a) Other Sources:  East Contra Costa County Habitat Conservation Plan and Natural Community Conservation Plan (Jones & Stokes 2006)  The Jepson Manual, 2nd Edition (Baldwin et al. 2012)  The California Native Plant Society’s Inventory of Rare and Endangered Plants of California (CNPS 2001a, 2012)  Specimen Management System for California Herbaria (CCH 2013)  A Manual of California Vegetation (Sawyer et al. 2009)  Contra Costa County Breeding Bird Atlas (CCCBBA 2002)  Contra Costa County Watershed Atlas (CCCCDD 2003)  Annotated Checklist of the East Bay Flora (Ertter and Naumovich 2013)  Unusual and Significant Plants of Alameda and Contra Costa Counties. Seventh Edition (Lake 2010)  Biological Resource Assessment, Drainage Area 55 Box Culvert at 10th Street, City of Antioch, Contra Costa County (Nomad Ecology 2009) Botanical taxonomy and nomenclature conforms to The Jepson Manual, 2nd Edition (Baldwin et al. 2012). Common names of plant species are derived from The Calflora Database (Calflora 2013). Land Cover Types described herein conform to the HCP/NCCP (Jones & Stokes 2006), Preliminary Descriptions of the Terrestrial Natural Communities of California (Holland 1986) and A Manual of California Vegetation (Sawyer et al. 2009); wetland and deepwater habitat classifications conform to Classification of Wetlands and Deepwater Habitats of the United States (Cowardin et al. 1979), where appropriate. Nomenclature for special-status plant species conform to the Inventory of Rare and Endangered Plants of California (CNPS 2001a, 2012) and Special Vascular Plants, Bryophytes and Lichens List (CDFW 2013d). Nomenclature for common and special-status wildlife conforms to the Complete List of Amphibian, Reptile, Bird and Mammal Species in California (CDFG 2008) with taxonomic nomenclature updates conforming to the Checklist of North American Birds (AOU 2012) and supplements published in The Auk for birds, An Annotated Check List of the Amphibians and Reptiles of California and Adjacent Waters (Jennings 2004) for amphibians and reptiles, and Mammals of California (ASM 2013) for mammals. Nomenclature for freshwater and terrestrial invertebrates conforms to Special Animals (CDFG 2011) and A List of Freshwater, Anadromous, and Euryhaline Fishes of California (Moyle and Davis 2000) for freshwater, anadromous, and euryhaline fishes. 2.4. REGULATORY FRAMEWORK Sensitive Natural Communities Sensitive natural communities are characterized as plant assemblages that are unique in constituent components, restricted in distribution, supported by distinctive soil conditions, considered locally rare, potentially support special-status plant or wildlife species and/or receive regulatory protection from municipal, county, state and/or federal entities. The regulatory framework that protects sensitive natural communities is derived from local, state and federal laws and regulations including Section 10 of the federal Rivers and Harbors Act, Sections 401 and 404 of the federal Clean Water Act, Section 1600 et seq. Section 2 Study Methods West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 8 of the California Fish and Game Code, Section 15065 of the CEQA guidelines, and various other city or county codes. Implementation and enforcement of these regulations are conducted by their respective regulatory entities such as the U.S. Army Corps of Engineers, California Regional Water Quality Control Board, CDFW, lead agency and/or various cities or counties. The CNDDB treats a number of natural communities as rare, which are given the highest inventory priority (Holland 1986; CDFG 2010). The HCP/NCCP also includes Uncommon Vegetation Types, which are a subset of Land Cover Types. For a summary of the laws and regulations regarding sensitive natural communities please refer to Appendix B. Special-Status Species Special-status plant species are defined as those species listed as endangered or threatened, are proposed or candidates for listing, or are designated as fully protected species under one or more of the following regulatory statues: ESA, as amended (Code of Federal Regulations, Title 50, Section 17), California Endangered Species Act (CESA) (California Code of Regulations Title 14, Section 670.5), California Fish and Game Code (Sections 1901, 2062, 2067) and the Native Plant Protection Act (NPPA) of 1977. Special-status species may also include locally rare species defined by CEQA guidelines 15125(c) and 15380, which may include species that are designated as sensitive, declining, rare, locally endemic or as having limited or restricted distribution by various federal, state, and local agencies, organizations, and watchlists. Their status is based on their rarity and endangerment throughout all or portions of their range. Such species are referred to as special-status species or “target species” herein. For a summary of the laws and regulations regarding special-status species please refer to Appendix B. The California Native Plant Society (CNPS) has developed and maintains an inventory of rare, threatened and endangered plants of California. This information is published in the Inventory of Rare and Endangered Vascular Plants of California. The rarity ranking contained in the CNPS inventory is endorsed by the CDFW and effectively serves as its list of “candidate” plant species. The following identifies the definitions of the CNPS California Rare Plant Ranks:  Rank 1A: Plants presumed to be extinct in California;  Rank 1B: Plants that are rare, threatened, or endangered in California and elsewhere;  Rank 2: Plants that are rare, threatened, or endangered in California, but are more numerous elsewhere;  Rank 3: Plants about which more information is needed (a review list); and  Rank 4: Plants of limited distribution (a watch list). California Rare Plant Rank 1B and 2 species are considered eligible for state listing as Endangered or Threatened pursuant to the California Fish and Game Code. As part of the CEQA process, such species should be fully considered, as they meet the definition of Threatened or Endangered under the NPPA and Sections 2062 and 2067 of the California Fish and Game Code. California Rare Plant Rank 3 and 4 species are considered to be either plants about which more information is needed or are uncommon enough that their status should be regularly monitored. Such plants may be eligible or may become eligible for state listing, and CNPS and CDFW recommend that these species be evaluated for consideration during the preparation of CEQA documents (CNPS 2001a, 2012), as some of these species may meet NPPA and CESA criteria as threatened or endangered. The East Contra Costa County Habitat Conservation Plan/Natural Communities Conservation Plan Inventory Area (HCP/NCCP) (Jones & Stokes 2006) obtains authorization for take of covered species under FESA and CESA are evaluated and conservation will occur. Covered species (Table 2) are those Section 2 Study Methods West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 9 species fully addressed in the HCP/NCCP and are included in the ESA and NCCP incidental take permits by evaluating and complying with avoidance and minimization requirements at a regional scale. In addition, the HCP/NCCP covers “no-take” species (Table 3), which are species for which take is not authorized under the Natural Community Conservation Plan Act (NCCPA). In order to comply with the terms of the HCP/NCCP, the applicant must avoid all direct and indirect impacts on no-take species. Table 2. Covered Species in the HCP/NCCP COVERED SPECIES (28 SPECIES) PLANTS AMPHIBIANS Mount Diablo manzanita California tiger salamander Brittlescale California red-legged frog San Joaquin spearscale Foothill yellow-legged frog Big tarplant REPTILES Mount Diablo fairy lantern Silvery legless lizard Recurved larkspur Alameda whipsnake Round-leaved filaree Giant garter snake Diablo helianthella Western pond turtle Brewer’s dwarf flax BIRDS Showy madia Tricolored blackbird Adobe navarretia Golden eagle INVERTEBRATES Western burrowing owl Longhorn fairy shrimp Swainson’s hawk Vernal pool fairy shrimp MAMMALS Midvalley fairy shrimp Townsend’s western big-eared bat Vernal pool tadpole shrimp San Joaquin kit fox Table 3. No-Take Species in the HCP/NCCP NO TAKE SPECIES (10 SPECIES) PLANTS WILDLIFE Large-flowered fiddleneck American peregrine falcon Alkali milk-vetch Golden eagle Mount Diablo buckwheat Ringtail Diamond-petaled poppy White-tailed kite Contra Costa goldfields - Caper-fruited tropidocarpum - 2.5. PERSONNEL AND FIELD INVESTIGATION Nomad senior botanist Heath Bartosh, botanist/wetland specialist Erin McDermott, and wildlife ecologist Jerry Roe conducted a site visit on March 12, 2013. An additional site visit was conducted on August 27, 2013 to assess parcels that had been added to the study area for staging areas and access. All proposed impact areas and vegetation communities within the study area were visited and evaluated for their potential to support sensitive biological resources. All plant species in bloom or otherwise recognizable were identified to a level necessary to determine their regulatory status. All wildlife species observed or Section 2 Study Methods West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 10 recognized by diagnostic sign (e.g. tracks, scat, burrow activity, carcasses, castings, prey remains) were recorded and identified to species, where feasible. Rare plant surveys were conducted by Mr. Bartosh and Ms. McDermott on June 12, July 8, July 25, and August 27, 2013. The purpose of these surveys was to conduct a floristic analysis of vascular plants of the study area to document any occurrence of rare, threatened or endangered species and other special status plants and vegetation communities. Surveys were conducted in accordance with California Native Plant Society’s Botanical Survey Guidelines (CNPS 2001b), California Department of Fish and Game’s Protocols for Surveying and Evaluating Impacts to Special Status Native Plant Populations and Natural Communities (CDFG 2009), and U.S. Fish and Wildlife’s Guidelines for Conducting and Reporting Botanical Inventories for Federally Listed, Proposed and Candidate Plants (USFWS 2000). Results of these surveys are summarized in this report and detailed in the Botanical Resource Survey Report (Nomad 2013b). Timing of rare plant surveys was based on peak blooming periods of the potentially-occurring special- status species. Collection dates based on historical collection data compiled from the CNPS’ Inventory of Rare and Endangered Plants and the Consortium of California Herbaria records were analyzed. Results of these surveys are summarized in this report and detailed in the Botanical Resource Survey Report (Nomad 2013b). A wetland delineation was conducted for the study area during the March 12, 2013 site visit. Site visits for the Drainage Area 55 Box Culvert at 10th Street project were conducted on July 8, 2009 and February 24, 2010. Focused botanical surveys or focused species surveys for wildlife species were not conducted during the field investigations. 2.6. LIMITATIONS Based on the timing of this assessment, not all potentially occurring special-status plant, fish or wildlife species can be entirely ruled out. However, determinations of presence/absence within the study area were possible for specific special-status plant species with blooming periods corresponding to the March 2013 site visit, or by direct observation or presence of diagnostic sign for wildlife species. Negative findings during site assessments or focused surveys may not indicate absence unless field surveys conform to agency approved protocols. Based on the timing of the site visit, all plant species growing within the study area may not have been observed due to varying flowering phenologies and life forms, such as bulbs, biennials, and annuals. Other potentially dominant species within vegetation communities on site may be present during other times of the year. Therefore, the present study is not floristic in nature. A complete determination of the presence or absence of potentially occurring botanical resources would require focused surveys to be conducted during all appropriate blooming periods (CNPS 2001b, CDFG 2009, USFWS 2000). Specific plant species identifications in this report are tentative due to the absence of morphological characters, resulting from immature reproductive structures or seasonal desiccations, which are required to make species level determinations. In these cases, cf (compares to) is used to indicate provisional species identification based on gestalt, vegetative morphology and/or its known range. Additionally, certain plant species, especially annuals, may be absent in some years due to annual variations in temperature and rainfall, which influence plant phenology. Colonization of new populations within an area may also occur from year to year. Therefore, since vegetation descriptions are based on one site visit conducted in 2013, vegetation descriptions may change in the event multiple season data are collected as annual species dominance may change depending on the sample season. The phrase “in part” is used to signify that vegetation descriptions may include additional annual species present if surveyed Section 2 Study Methods West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 11 during other seasons. The proposed areas evaluated in this report are based on the project description provided by the City. Significant changes in the project design may warrant further analysis. Section 3 Environmental Setting West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 12 Section 3. ENVIRONMENTAL SETTING 3.1. SETTING 3.1.1 REGIONAL SETTING As described in the Ecological Subregions of California (USDA 1997), the study area is geographically situated on the western edge of the Great Valley within the West Side Fans and Alluvial Terraces subsection of California Ecoregions (USDA 1997). The Ecological Subregions of California is the basis for describing regional variation in California alliance descriptions in A Manual of California Vegetation (Sawyer et al. 2009). Regionally, the West Side Fans and Alluvial Terraces consists of terraces and alluvial fans along the western edge of the San Joaquin Valley, adjacent to the South Coast Ranges, which are characterized by a hot and semi-arid to sub-humid climate. A subsection of the Great Valley subregion, West Side Fans and Alluvial Terraces range in elevation from 0 feet to about 1,500 feet. This ecological subsection is mainly comprised of Quaternary alluvium, and some Plio-Pleistocene sediments. The alluvium is predominantly from sedimentary rock sources in the South Coast Ranges (USDA 1997). Most of the soils are well drained, however some poorly drained soils also occur where calcium carbonates and even sodium can accumulate. For this subsection, the mean annual precipitation ranges from 8 to 16 inches and is almost entirely rainfall. The mean annual temperature is generally between 59 and 62F, and the mean freeze- free period is from 250 to 275 days. Hydrologically, streams of this subsection drain into the San Joaquin River, and all but the largest streams are generally dry during the summer. 3.1.2 LOCAL SETTING The study area is located in the City of Antioch approximately 0.75-mile north of Highway 4. It extends from just south of the intersection of O Street and 10th St. north to the marsh that borders the San Joaquin River. The study area lies approximately 10 miles northeast of the peak of Mount Diablo. It is located within the San Joaquin Valley subregion of the California Floristic Province and within the East and West Antioch Creek Watersheds (CCCCDD 2003). As recorded in the public land survey system, the study area lies within Township 2 North and Range 1 East of the Mount Diablo Baseline and Meridian. It is depicted on the Antioch North (38121a7) 7.5-minute USGS topographic quadrangle (Figure 3). The study area includes portions of 40 parcels that total approximately 72.4 acres, located in an urban area of the City of Antioch. It includes an approximately 0.79-mile stretch of West Antioch Creek. At the upstream end of the project area, the creek is surrounded by homes, apartments, a hotel, the Contra Costa County Fairgrounds, a vacant lot, and a vacant car dealership, and runs under a four-lane roadway at 10th St. Further downstream the creek is bordered by the history museum and industrial warehouses, runs under West 4th Street, and is crossed by a railroad (Figure 4). West Antioch Creek flows into the Dow Wetlands Preserve, which borders the San Joaquin River. Topography of the study area is fairly level, gradually sloping downstream, and ranges from approximately 10-30 feet elevation. Annual average rainfall is approximately 15 inches (PRISM 2007). The underlying geology of the study area consists of undivided Pleistocene and Holocene surficial deposits (Graymer et al. 1994). A total of five soil mapping units are located within the study area: Brentwood clay loam; Joice muck; Marcuse clay; Rincon clay loam, 9-15% slopes; and Sycamore silty clay loam (USDA 1977). Photographs of the study area are included in Appendix D. Section 3 Environmental Setting West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 13 3.2. HYDROLOGY CHARACTERISTICS Hydrology on site can be influenced by many factors, such as precipitation, run-off, geologic stratigraphy, topography, soil permeability, and plant cover. The single hydrologic feature on site is an approximately 0.79-mile stretch of West Antioch Creek. West Antioch Creek is characterized as an intermittent “blue- line” stream on the Antioch North and Antioch South USGS 7.5-minute quadrangles and in the HCP/NCCP. However, it receives local runoff from adjacent development, which may contribute to surface water flow all year. West Antioch Creek contained flowing water during the March and August 2013 and April and July 2009 site visits. West Antioch Creek originates in the Mount Diablo foothills to the south and drains north into the Sacramento-San Joaquin Delta. West Antioch Creek originates in Black Diamond Mine Regional Park, flows north into Antioch Municipal Reservoir, continues north and is joined by several tributaries near Highway 4. Markley Canyon Creek flows into West Antioch Creek approximately 0.5-mile south of the study area. West Antioch Creek flows through the study area and empties into the San Joaquin River, immediately north of the study area (Figure 5). The reach of West Antioch Creek within the study area is highly urbanized. Historically, the creek was discontinuous, but has since been channelized into a continuous channel with engineered banks, surrounded predominately by impervious surfaces (SFEI 2011). Moving from the upstream end of the project to the downstream end, the drainage transitions from an earthen trapezoidal channel near the Contra Costa County Fairgrounds, to a culvert under 10th Street, to a concrete-lined drainage covered by wooden planking under the vacant car dealership’s parking lot, to an open concrete-lined ditch, to the improved open earthen/vegetated channel that continues all the way to the northern end of the study area with culverts under West 4th Street and the railroad tracks. In the study area, West Antioch Creek runs primarily in a north-south alignment; however, the drainage has four hard bends that form 90 degree angles. Garbage and debris were observed in the creek channel during the site visits. West Antioch Creek is tidally influenced near the confluence with the San Joaquin River; however, it is uncertain how far upstream the tidal influence occurs. 3.3. VEGETATION/LAND COVER TYPES This subsection describes vegetation communities following the Land Cover Types described in the HCP/NCCP (Jones & Stokes 2006). HCP/NCCP Land Cover Types observed within the study area include ruderal grassland, alkali grassland, seasonal wetland, alkali wetland, permanent wetland, riparian woodland/scrub, stream, and urban (Table 4). The location of Land Cover Types in the study area is shown in Figure 6 (Appendix A). Vegetation on site is further described by referencing commonly used vegetation classification systems including Preliminary Descriptions of the Terrestrial Natural Communities of California (Holland 1986), Manual of California Vegetation, Second edition (Sawyer et al. 2009) , and California Vegetation (Holland and Keil 1995)2. Holland (1986) provides a generalized community-level description for natural vegetation communities present within the study area. More detail is accomplished using Manual of 2 This is due to the fact that the HCP Land Cover Types, in many cases, do not refer to standard vegetation community treatments and is therefore an effort to relate HCP Land Cover Types to these commonly used classification systems for regional context and regulatory continuity. Section 3 Environmental Setting West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 14 California Vegetation, Second edition which identifies vegetation communities as alliances3. The codes used in Table 5 reflect those associated with Holland (1986) types and the Vegetation Classification and Mapping Program List of California Vegetation Alliances (CDFG 2010). Vegetation that interfaces with urban or developed landscapes, i.e. ruderal, is treated using Holland and Keil (1995). In addition, habitat types from the CNPS Inventory of Rare and Endangered Plants of California (CNPS 2001) are included to reference habitat types listed in the CNPS Inventory to vegetation types on site (Table 5). Table 2. Land Cover Types in the Study Area LAND COVER TYPE ACREAGE Ruderal Grassland 18.27 Alkali Grassland 0.07 Seasonal Wetland 2.23 Alkali Wetland 0.10 Permanent Wetland 4.93 Riparian Woodland/Scrub 1.12 Stream (Open Water) 1.54 Stream (in culvert) 0.10 Urban 44.03 Total 72.4 3.3.1 RUDERAL GRASSLAND As described in the HCP/NCCP ruderal grassland vegetation is characterized by sparse nonnative, typically weedy vegetation, occupying vacant parcels surrounded by developed areas. Based on the description by Holland and Keil (1995), ruderal vegetation is an assemblage of plants, often a mixture of both native and nonnative weed species that thrive in waste areas, heavily grazed pastures, cultivated and fallow fields, roadsides, parking lots, footpaths, around residences and similar disturbed sites in towns and cities and along rural roadways. Ruderal communities are difficult to characterize and are often temporary assemblages. In areas of frequent human disturbance, the majority of wild plants are often introduced weeds rather than natives. Some urban weeds are ornamentals that have escaped from cultivation. Ruderal species may at times be integrated into various other communities (Holland and Keil 1995). A large portion of the study area is characterized as ruderal grassland vegetation, primarily the banks of the berms adjacent to the channelized creek and in open fields. Upland areas in the creek channel were also considered ruderal based on species composition. Non-native plant species typical of ruderal grassland vegetation on site include ripgut brome (Bromus diandrus), wild oats (Avena fatua*), hare barely (Hordeum murinum subsp. leporinum*), Italian ryegrass (Festuca perennis*), Bermuda grass (Cynodon dactylon*), johnsongrass (Sorghum halapense*), charlock (Sinapis arvensis*), milk thistle (Silybum marianum*), whitestem filaree (Erodium moschatum*), red-stemmed filaree (Erodium 3 An alliance is a classification unit of vegetation, containing one or more associations and defined by one or more diagnostic species, often of high cover, in the uppermost layer or layer with the highest canopy cover. Alliances reflect regional to subregional climates, substrates, hydrology, and disturbance regimes.  Denotes a non-native species that has an origin other than that of California Section 3 Environmental Setting Wetland Delineation – West Antioch Creek Channel Improvements Project 15 Table 3. Vegetation Community Classifications Systems Comparisons VEGETATION COMMUNITY AND WETLAND CLASSIFICATION SYSTEMS HCP/NCCP LAND COVER TYPES4 TERRESTRIAL COMMUNITIES5,6 CALIFORNIA & NATIONAL VEGETATION7 CNPS INVENTORY8 WETLANDS & DEEPWATER HABITATS9 Ruderal Grassland Ruderal (Holland & Keil 1995) Not Described Not Described Upland Alkali Grassland Not Described Distichlis spicata Herbaceous Alliance (Saltgrass flats) (41.200.00) Chenopod Scrub (in part) Valley and Foothill Grassland (in part) Upland Seasonal Wetland Not Described Not Described Meadows and Seeps (in part) Palustrine persistent emergent wetlands Alkali Wetland Alkali Meadow (in part) (45310) (Holland 1986) Distichlis spicata Herbaceous Alliance (Saltgrass flats) (41.200.00) Meadows and Seeps (in part) Vernal Pools (in part) Playas (in part) Palustrine persistent emergent wetlands Permanent Wetland Coastal Brackish Marsh (52200) (Holland 1986) Typha angustifolia Alliance (Cattail Marshes) (52.050.00) Marshes and Swamps Palustrine persistent emergent wetland Riparian Woodland/Scrub Central Coast Riparian Scrub (63200) (Holland 1986) Salix lasiolepis Shrubland Alliance (Arroyo Willow Thickets) (61.201.00) Riparian Scrub Palustrine forested or shrub-scrub wetland Stream Not Described Not Described Not Described Riverine streambed 4 East Contra Costa County Habitat Conservation Plan/Natural Community Conservation Plan (Jones & Stokes 2006) 5 Terrestrial Natural Communities of California (Holland 1986) or (Holland & Keil 1995) 6 These classification systems (Manual of California Vegetation and National Vegetation Classification) appear as listed in the Vegetation Classification and Mapping Program List of California Vegetation Alliances (CDFG 2007) and List of Terrestrial Natural Communities (CDFG 2003) 7 A Manual of California Vegetation (Sawyer & Keeler-Wolf 1995) & National Vegetation Classification (Grossman et al. 1998) 8 CNPS Inventory of Rare and Endangered Plants of California Habitat Types (CNPS 2001) 9 Classification of Wetlands & Deepwater Habitats of the U.S. (Cowardin et al. 1979) Section 3 Environmental Setting Wetland Delineation – West Antioch Creek Channel Improvements Project 16 VEGETATION COMMUNITY AND WETLAND CLASSIFICATION SYSTEMS HCP/NCCP LAND COVER TYPES4 TERRESTRIAL COMMUNITIES5,6 CALIFORNIA & NATIONAL VEGETATION7 CNPS INVENTORY8 WETLANDS & DEEPWATER HABITATS9 Urban Not Described Not Described Not Described Upland Section 3 Environmental Setting West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 17 cicutarium*), common vetch (Vicia sativa subsp. sativa*), winter vetch (Vicia villosa subsp. villosa*), stinkwort (Dittrichia graveolens*), bur clover (Medicago polymorpha*), wild radish (Raphanus sativus*), English plantain (Plantago lanceolata*), field bindweed (Convolvulus arvensis*), black mustard (Brassica nigra*), cut-leaved geranium (Geranium dissectum*), prickly lettuce (Lactuca serriola*), fat hen (Atriplex prostratus*), bristly ox-tongue (Helminthotheca echioides*), prickly sowthistle (Sonchus asper subsp. asper*), fennel (Foeniculum vulgare*) and perennial pepperweed (Lepidium latifolium*), in part. Native species observed in low abundance within the vegetation type also include tall willowherb (Epilobium brachycarpum), common bedstraw (Galium aparine), evening primrose (Oenothera elata subsp. hookeri), horseweed (Conyza canadensis), cocklebur (Xanthium strumarium), and saltgrass (Distichlis spicata). Scattered native and non-native trees are present throughout the study area including black walnut (Juglans hindsii), valley oak (Quercus lobata), California fan palm (Washingtonia filifera), Chinese elm (Ulmus parvifolia*), and ngaio tree (Myoporum laetum*). 3.3.2 ALKALI GRASSLAND As described by the HCP/NCCP, alkali grasslands are grasslands that generally occur on alkaline soil units within the Marcuse, Pescadero, Sacramento, and Solano soil series. Dominant grasses in alkali grassland include saltgrass (Distichlis spicata) and wild barley (Hordeum spp.) The associated herb cover consists of halophytes including saltbush (Atriplex spp.), alkali heath (Frankenia salina), alkali weed (Cressa truxillensis), alkali mallow (Malvella leprosa), and common spikeweed (Centromadia pungens). Within the study area alkali grassland is represented by one alliance: Distichlis spicata Herbaceous Alliance. Distichlis spicata Herbaceous Alliance (Saltgrass Flats) As described, saltgrass is dominant or co-dominant in the herbaceous layer with other herbaceous grassland and wetland species. Emergent shrubs such as iodine bush (Allenrolfia oocidentalis), saltbush saltbush (Atriplex spp.) and others may be present at low cover. The canopy is open to continuous and herbs are less than one meter in height. Habitat for this vegetation community includes coastal salt marshes, and inland habitats including playas, swales, and terraces along washes that are typically intermittently flooded from 0 to 4,921 feet (0 to 1,500 meters) in elevation. A small area of alkali grassland is present in the northern portion of the study area, just south of the railroad tracks, on the edge of an access road. It is dominated by saltgrass, with small amounts of Italian ryegrass*, Mediterranean barley (Hordeum marinum subsp. gussoneanum*), alkali mallow (Malvella leprosa*), and fivehook bassia (Bassia hyssopifolia). 3.3.3 SEASONAL WETLAND As described by the HCP/NCCP, seasonal wetlands are freshwater wetlands that support ponded or saturated soil conditions during winter and spring and are dry through the summer and fall until the first substantial rainfall. Seasonal wetlands, although not specifically described in Holland (1986) or Holland and Keil (1995), would be classified by Cowardin (1979) as seasonally persistent palustrine emergent wetlands. As defined, this classification indicates that surface water is present for extended periods, especially early in the growing season, but is absent by the end of the season in most years. When surface water is absent, the water table is often near the land surface. Vegetation is characterized by erect, rooted,  Denotes a species of native origin but not indigenous to the site Section 3 Environmental Setting West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 18 herbaceous hydrophytes, excluding mosses and lichens, and is present for most of the growing season in most years. This community typically occurs as shallow ephemeral bodies of water that occupy valley bottoms or low-lying depressions on poorly drained clay soils. Typically species of annual and perennial native and non-native grasses and forbs that begin their growth as aquatic or semiaquatic plants, typically resembling a wetland community, that make a transition to a dry-land environment as the pool dries and upland grasses and forbs enroot while wetland species desiccate. The length of time that water persists has a major effect on species composition. During and after the establishment of upland species these sites may no longer resemble wetlands. These plant species usually have a wetland indicator status of hydrophytic or facultative. Although seasonal wetlands and vernal pools share similar hydrologic characteristics, species composition of seasonal wetlands is typically ruderal in nature. Therefore, seasonal wetlands are not considered vernal pools, which support a more specialized and less common native flora. Within the study area, seasonal wetlands were present on the margins and floodplain of the West Antioch Creek low flow channel, and extended from the vacant car dealership downstream to West 4th Street. Species present at the upstream end were typical of freshwater seasonal wetlands and became more brackish in nature heading downstream. These areas are likely supported by precipitation runoff in the winter months and urban runoff in the spring and summer months, as well as overflow from the low flow channel during high tides. Plant species characteristic of seasonal wetland in the study area include Italian ryegrass*, wild oats*, burclover*, rabbitsfoot grass (Polypogon monspeliensis*), barnyard grass (Echinochloa crus-galli*), birdfoot trefoil (Lotus corniculatus*), evening primrose (Oenothera elata subsp. hookeri), tall flatsedge (Cyperus eragrostis), waterbentgrass (Polypogon viridis*), perennial pepperweed (Lepidium latifolium*), brass buttons (Cotula coronopifolia*), sand spurrey (Spergularia sp.), wild radish*, Bermuda grass*, fat hen*, and celery (Apium graveolens*). 3.3.4 ALKALI WETLAND As described by the HCP/NCCP, alkali wetlands support ponded or saturated soil conditions and occur as perennial or seasonally wet features on alkaline soils. Alkali wetlands occur where wetlands are present within alkali grassland land cover type. The vegetation of alkali wetlands is composed of halophytic plant species adapted to both wetland conditions and high salinity levels. Typical species include those common to both seasonal and alkali wetlands, such as saltgrass, alkali heath, and common spikeweed. A small area of alkali wetland is present in the northern portion of the study area, just south of the railroad tracks. It borders a dense stand of permanent wetland dominated by narrowleaf cattail (Typha angustifolia). Plant species characteristic of the alkali wetland on site include saltgrass, rabbitfoot grass*, Italian ryegrass*, Mediterranean barley*, and alkali mallow*. It differs from alkali grassland on site in that it is codominated by rabbitfoot grass and contains surface indicators of wetland hydrology. 3.3.5 PERMANENT WETLAND As described by the HCP/NCCP, permanent wetland is characterized by a year-round water source. It is typically dominated by erect, rooted, herbaceous hydrophytic plant species adapted to growing in conditions of prolonged inundation. Of the vegetation types described by Holland (1986) the most similar is coastal brackish marsh. Coastal brackish marsh is dominated by perennial, emergent, herbaceous monocots to 2 meters tall. Cover is often complete and dense. This community is similar to salt marsh and freshwater marsh with some plants characteristic of each and it often intergrades with these communities. It is usually at the interior edges of coastal bays and estuaries or in coastal lagoons, where there is a freshwater input. Salinity may vary considerably, and may increase at high tide or during season of low freshwater runoff or both. Within the study area permanent wetland is represented by one alliance: Typha angustifolia Herbaceous Alliance. Section 3 Environmental Setting West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 19 Typha angustifolia Herbaceous Alliance (Cattail Marshes) As described, narrowleaf cattail (Typha angustifolia) is dominant or co-dominant in the herbaceous layer with other herbaceous wetland species. Emergent trees such as willows may be present at low cover. Herbaceous species are less than 1.5 meters in height and the canopy is intermittent to continuous. According to the membership rules, broadleafed cattail must have greater than 50% relative cover in the herbaceous layer. Habitat for this vegetation community includes semi-permanently flooded freshwater or brackish marshes from 0 to 1,150 feet (0 to 350 meters) in elevation. Within the study area cattail marsh is located adjacent to the low flow channel of West Antioch Creek downstream of West 4th Street and at the margin of the San Joaquin River. These areas are tidally influenced and contain brackish water. These areas are dominated by dense monoculture stands of narrowleaf cattail where standing water is present. Other species are present along the margins in low abundance including tall flatsedge, perennial pepperweed*, Himalayan blackberry (Rubus armeniacus*), pampas grass (Cortaderia jubata*), and western goldentop (Euthamia occidentalis). Scattered arroyo willow (Salix lasiolepis) are present. 3.3.6 RIPARIAN WOODLAND/SCRUB The HCP/NCCP defines riparian woodland/scrub land cover type as dominated by phreatophytic woody vegetation associated with streams and permanent water sources. Riparian woodland is dominated by trees whereas riparian scrub is dominated by young trees and shrubs. Of the vegetation types described by Holland (1986) the most similar is central coast riparian scrub. Central coast riparian scrub is a scrubby streamside thicket, varying from open to impenetrable, dominated by any of several willow species. This early seral community may succeed to any of several riparian woodland or forest types in the absence of severe flooding disturbance. This community occurs on relatively fine-grained sand and gravel bars that are close to river channels and therefore close to ground water. It is distributed along and at the mouths of most perennial and many intermittent streams of the south Coast Ranges, from the Bay Area south to Point Conception. Within the study area riparian woodland/scrub is represented by one alliance: Salix lasiolepis Shrubland Alliance, described below. Salix lasiolepis Shrubland Alliance (Arroyo Willow Thickets) As described, arroyo willow is dominant or co-dominant in the shrub layer or tree canopy with other native shrubs or trees. As a shrubland, emergent trees may be present at low cover. Plants are less than 10 meters in height and the canopy is open to continuous. According to the membership rules for this vegetation type, willow scrub must have greater than 50% relative cover in the shrub or tree canopy (Sawyer et al. 2009). Habitat for this vegetation community throughout California includes stream banks and benches, steep slopes, and stringers along drainages, growing on seasonally or intermittently flooded sites. Arroyo willow shrubland is present in the channel, along a tributary ditch, and north of the railroad tracks. It is comprised almost entirely of arroyo willow. Scattered red willow (Salix laevigata), Fremont cottonwood (Populus fremontii subsp. fremontii) and Himalayan blackberry* are also present. 3.3.7 STREAM The HCP/NCCP defines a stream as a long, narrow body of flowing water that occupies a channel with a defined bed and bank and moves to lower elevations under the force of gravity. West Antioch Creek is shown as a “blue-line stream” on the Antioch North and Antioch South 7.5 minute USGS quadrangles. Section 3 Environmental Setting West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 20 West Antioch Creek is a perennial creek that exhibits an Ordinary High Water Mark and evidence of scour. It has a low flow channel that is mostly unvegetated. Small amounts of permanent wetland vegetation are scattered along the margin of the creek, including tall flatsedge, narrowleaf cattail, and watercress (Nasturtium officinale). 3.3.8 URBAN The HCP/NCCP defines urban sites as areas where the native vegetation has been cleared for residential, commercial, industrial, transportation, or recreational structures. Developed areas include areas that have structures, paved surfaces, horticultural plantings, and lawns smaller than 10 acres. Within the study area, areas mapped as urban include 10th St., O Street, West 4th St., industrial warehouses, apartment buildings, and other paved surfaces. 3.4. MOVEMENT CORRIDORS AND HABITAT FRAGMENTATION Habitat loss, fragmentation, and degradation resulting from land use changes or habitat conversion can alter the use and viability of wildlife movement corridors (i.e. linear habitats that naturally connect and provide passage between two or more otherwise disjunct larger habitats or habitat fragments). In general, studies suggest that habitat corridors provide connectivity for and are used by wildlife, and as such are an important conservation tool (Beier and Noss 1998). According to Beier and Loe (1992), wildlife habitat corridors should fulfill several functions. They should maintain connectivity for daily movement, travel, mate-seeking, and migration; plant propagation; genetic interchange; population movement in response to environmental change or natural disaster; and recolonization of habitats subject to local extirpation. The suitability of a habitat as a wildlife movement corridor is related to, among other factors, the habitat corridor’s dimensions (length and width), topography, vegetation, exposure to human influence, and the species in question (Beier and Loe 1992). Species utilize movement corridors in several ways. “Passage species” are those species that use corridors as thru-ways between outlying habitats. The habitat requirements for passage species are generally less than those for corridor dwellers. Passage species use corridors for brief durations, such as for seasonal migrations or movement within a home range. As such, movement corridors do not necessarily have to meet any of the habitat requirements necessary for a passage species’ everyday survival. Large herbivores, such as deer and elk, and medium-to-large carnivores, such as coyotes, bobcats and mountain lions, are typically passage species. “Corridor dwellers” are those species that have limited dispersal capabilities – a category that includes most plants, insects, reptiles, amphibians, small mammals, and birds – and that use corridors for a greater length of time. As such, wildlife movement corridors must fulfill key habitat components specific to a species’ life history requirements in order for them to survive (Beier and Loe 1992). In general, however, the suitability and/or utility of the landscape – specifically, of the landscape as corridor habitat – is best evaluated on a species-level (Beier and Noss 1998). The study area is almost entirely surrounded by urban development, limiting potential migration, dispersal and home range movement to the West Antioch Creek and its associated riparian corridor. West Antioch Creek is a relatively narrow, channelized and earthen stream corridor crossing through the northern portion of the City of Antioch. The creek and associated floodplain and riparian corridor meet open tidally influenced marshlands of the San Joaquin River at the northern project terminus. West Antioch Creek extends southward along a narrow, channelized corridor through dense urban habitat before going underground. Connection to the undeveloped lands of the northern Diablo Mountain Range is restricted by urbanization and State Route 4, limiting movement of special-status and common species. The study area provides connection to aquatic, marshland and riparian species to adjacent ruderal habitat and large contiguous tidally-influenced marshlands to the north. A number of species observed along West Antioch Creek may travel along the creek corridor and through the study area including western Section 3 Environmental Setting West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 21 pond turtle, river otter, muskrat, raccoon, Virginia opossum, and striped skunk, among others. The corridor also provides connectivity for invasive species such as the New Zealand mud snail, signal crayfish, Louisiana red swamp crayfish, red-eared slider turtles, house mouse, roof rat and brown rat. Habitat upstream of the study area becomes increasingly urbanized, culverted and undergrounded thereby preventing the upstream movement of resident and anadromous fish species. Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 22 Section 4. ASSESSMENT AND FINDINGS In evaluating on-site habitat suitability for special-status plant and wildlife species within the study area, relevant literature, knowledge of regional biota, and observations made during the field investigations were applied as analysis criteria. Criteria determinations for occurrence potential of special-status species are divided into the five categories described below. These determination categories appear in Appendices C and D, which provide a summary of the status, habitat affinities, flowering phenology, habitat suitability and local distribution, and potential for occurrence for each of the target special-status species. It should be noted that local distribution references refer to the CNDDB Element Occurrence Index (EONDX) number. The EONDX is an integer primary key (unique for each record) used within the CNDDB for GIS relational databases. Although the EONDX is assigned sequentially, gaps may appear as records are merged or updated. Factors influencing which determination criteria are applied to target species are detailed below.  None denotes a complete lack of habitat suitability, local range restrictions, and/or regional extirpations.  Not Expected denotes situations where suitable habitat or key habitat elements may be present but may be of poor quality or isolated from the nearest extant occurrences. Incompatible habitat suitability refers to elevation, geology, soil chemistry and type, vegetation communities, microhabitats, and degraded/significantly altered habitats. These factors create unsuitable ecological conditions for the consideration of even a low occurrence potential within the study area.  Absent indicates specified taxa not observed during field investigations and were consequently ruled out. This category also refers to diagnostic vegetative material of shrubby perennial species not observed on site. This category refers only to plant species.  Possible indicates the presence of suitable habitat or key habitat elements that potentially support a specific species or taxa.  Present indicates the target species was either observed directly or its presence was confirmed by diagnostic sign (i.e. tracks, scat, burrows, carcasses, castings, prey remains) during field investigations. 4.1. SENSITIVE NATURAL COMMUNITIES A total of six sensitive communities were observed in the project area: alkali grassland, seasonal wetland, alkali wetland, permanent wetland, riparian woodland/scrub, and stream. Seasonal wetland, alkali wetland, permanent wetland, riparian woodland/scrub, and stream are considered sensitive natural communities as they may qualify as a water of the U.S. and/or Waters of the State falling under U.S. Army Corps of Engineers and Regional Water Quality Control Board jurisdictions through the Clean Water Act and the Porter Cologne Water Quality Act. A wetland delineation has been completed for the study area but has not been submitted to the U.S. Army Corps of Engineers for verification. Alkali grassland is listed as an uncommon vegetation alliance in the HCP/NCCP. Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 23 4.2. SPECIAL-STATUS PLANTS Based on the site reconnaissance, a review of available databases and literature (USFWS 1999, 2013a,b; CDFW 2013a,b,d; CNPS 2001a, 2013; CCH 2013; Baldwin et al. 2012) and familiarity with the regional flora, a total of 71 special-status plant species are known to occur within the vicinity10 of the study area (Appendix C). Of these species, 63 were ruled out based on the lack of suitable habitat such as coastal bluff scrub, coastal scrub, serpentine substrate, or volcanic soils. Species were also ruled out due to distribution restrictions, absence of suitable elevation ranges, or the fact that they would have been detectable during the 2013 March site visit. The 8 remaining species were considered to have the potential to occur within the study based on the presence of suitable habitat (i.e. brackish or freshwater marshes, mud banks, and riparian scrub) and were considered targets for rare plant surveys conducted in June, July, and August 2013. Table 6 summarizes species that had the potential to occur and were considered targets. No rare plants were observed during the surveys. Additional parcels were added to the study area for staging areas and access in August 2013. These additional parcels contained primarily developed and ruderal grassland land cover types. These additional parcels contained two small areas of alkali grassland and alkali grassland, both dominated by dense saltgrass. These areas were surveyed on August 27, 2013 for special-status plant species that occupy alkali habitat and would be detectable in August. All other special-status plant species known from alkali habitats in the region were ruled out due to the quality of habitat on site. Alkali grassland and alkali wetland on site are dominated by dense saltgrass instead of a mosaic of annual grasses and open soil which these special-status species prefer. A complete list of all species considered as part of this assessment, their regulatory status, habitat requirements, local distribution, and potential for occurrence is presented in Appendix C. Special-status plant species recorded in the project vicinity from the California Natural Diversity Database (CNDDB) are depicted in Figure 7. Table 6. Potentially Occurring Special-Status Plant Species POTENTIALLY OCCURRING SPECIAL-STATUS PLANT SPECIES LISTING STATUS1 POTENTIAL FOR OCCURRENCE FEDERAL/STATE LISTED SPECIES Chloropyron molle subsp. molle11 Soft bird’s-beak FE, SR CRPR 1B.2 Not observed during 2013 rare plant surveys. Lilaeopsis masonii Mason's lilaeopsis SR CRPR 1B.1 Not observed during 2013 rare plant surveys. CALIFORNIA RARE PLANT RANK SPECIES Cicuta maculata var. bolanderi Bolander’s water hemlock CRPR 2.1 Not observed during 2013 rare plant surveys. Hibiscus lasiocarpos var. occidentalis Woolly rose-mallow CRPR 2.2 Not observed during 2013 rare plant surveys. Lathyrus jepsonii var. jepsonii Delta tule pea CRPR 1B.2 Not observed during 2013 rare plant surveys. 10 Vicinity is defined as the area included within the nine USGS 7½-minute topographic quadrangles that are centered on the study area Antioch North, Antioch South, Bird’s Landing, Brentwood, Clayton, Denverton, Honker Bay, Jersey Island, and Rio Vista. 11 This species was previously recognized in the first edition of The Jepson Manual (Hickman 1993) as Cordylanthus mollis ssp. mollis. USFWS documents (USFWS 1995, 1997, 2007, 2009, 2013b) refer to this name. Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 24 POTENTIALLY OCCURRING SPECIAL-STATUS PLANT SPECIES LISTING STATUS1 POTENTIAL FOR OCCURRENCE Limosella australis Delta mudwort CRPR 2.1 Not observed during 2013 rare plant surveys. Scutellaria lateriflora Side-flowering skullcap CRPR 2.2 Not observed during 2013 rare plant surveys. Symphyotrichum lentum Suisun Marsh aster CRPR 1B.2 Not observed during 2013 rare plant surveys. 1Explanation of State and Federal Listing Codes and HCP/NCCP Coverage Federal listing codes: California listing codes: FE Federally listed as Endangered SR State listed as Rare California Native Plant Society codes: 1B Rare or Endangered in California and elsewhere 2 Rare or Endangered in California, more common elsewhere California Native Plant Society Threat Codes: .1 Seriously Endangered in California (over 80% of occurrences Threatened / high degree and immediacy of threat) .2 Fairly Endangered in California (20-80% occurrences Threatened) 4.2.1 HCP/NCCP COVERED AND NO-TAKE PLANT SPECIES There are seventeen covered and no-take species listed in the HCP/NCCP. The HCP/NCCP Planning Survey Report lists Land Cover Types that provide habitat for each of the covered and no-take species (Table 7). Of the seventeen covered/no-take species, all seventeen can be ruled out as occurring on site because there is no suitable habitat and they would have been detectable during rare plant surveys conducted in June, July, and August 2013. Table 7 outlines the 17 covered/no take plant species, habitat found on site, and their potential for occurrence. Table 7. HCP/NCCP Covered and No Take Plant Species LAND COVER TYPE SPECIES NAME COMMON NAME LISTING STATUS HCP/NCCP STATUS HABITAT PRESENT POTENTIAL FOR OCCURRENCE Annual grassland Amsinckia grandiflora large-flowered fiddleneck FE, SE CNPS 1B.1 No Take Study area is outside of elevation range for this taxon and the study area does not include the preferred Altamont soil type of this species. No habitat. Chaparral and scrub Arctostaphylos auriculata Mt. Diablo manzanita CNPS 1B.3 Covered No chaparral or scrub present in the study area. No habitat. Would have been detectable during 2013 surveys. Alkali wetland Annual Grassland Seasonal Wetland Astragalus tener var. tener alkali milk-vetch CNPS 1B.2 No Take Although suitable vegetation associations are present, this species does not occur in riverine habitat. Alkali grassland and alkali wetland on site are dominated by dense saltgrass instead of a mosaic of annual grasses and open soil which this species prefers. No habitat. Alkali grassland Alkali wetland Atriplex depressa brittlescale CNPS 1B.2 Covered Suitable vegetation associations are present. Not Observed. Would have been detectable during 2013 surveys. Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 25 Alkali grassland Alkali wetland Atriplex joaquiniana San Joaquin spearscale CNPS 1B.2 Covered Suitable vegetation associations are present. Not Observed. Would have been detectable during 2013 surveys. Annual grassland Blepharizonia plumosa big tarplant CNPS 1B.2 Covered Study area is outside of elevation range for this taxon and the study area does not include the preferred Altamont soil type of this species. No habitat. Annual grassland California macrophylla round-leaved filaree CNPS 1B.1 Covered Study area lacks heavy clay soils that support this species. No habitat. Annual grassland Chaparral and scrub Oak woodland Oak savanna Calochortus pulchellus Mt. Diablo fairy-lantern CNPS 1B.2 Covered This taxon occurs on the ecotone of listed associations. Study area is outside of elevation range for this taxon which is restricted to Mount Diablo and its foothills. No habitat. Alkali grassland Delphinium recurvatum recurved larkspur CNPS 1B.2 Covered Although suitable vegetation associations are present, this species does not occur in riverine habitat. Alkali grassland and alkali wetland on site are dominated by dense saltgrass instead of a mosaic of annual grasses and open soil which this species prefers. No habitat. Annual grassland Chaparral and scrub Eriogonum truncatum Mt. Diablo buckwheat CNPS 1B.1 No Take This taxon occurs on the ecotone of listed associations and at higher elevations locally. No habitat. Annual grassland Eschscholzia rhombipetala diamond-petaled California poppy CNPS 1B.1 No Take Study area lacks suitable alkaline and heavy clay characteristics. No habitat. Chaparral and scrub Oak savanna Oak woodland Helianthella castanea Diablo helianthella CNPS 1B.2 Covered This taxon occurs on the ecotone of listed associations. Study area is also outside of elevation range for this taxon. No habitat. Annual grassland Chaparral and scrub Oak woodland Hesperolinon breweri Brewer’s western flax CNPS 1B.2 Covered This taxon occurs on the ecotone of listed associations. Study area is also outside of elevation range for this taxon. No habitat. Alkali grassland Annual grassland Seasonal wetland Lasthenia conjugens Contra Costa goldfields FE CNPS 1B.1 No Take Although suitable vegetation associations are present, this species does not occur in riverine habitat. Alkali grassland and alkali wetland on site are dominated by dense saltgrass instead of a mosaic of annual grasses and open soil which this species prefers. No habitat. Annual grassland Oak woodland Madia radiata showy madia CNPS 1B.1 Covered Study area is outside of elevation range for this taxon. No habitat. Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 26 Seasonal wetland Navarettia nigelliformis subsp. nigelliformis Adobe navarretia CNPS 4.2 Covered Study area lacks the preferred substrates and is outside of elevation range for this taxon. No habitat. Alkali grassland Tropidocarpum capparideum caper-fruited tropidocarpum CNPS 1B.1 No Take Although suitable vegetation associations are present, this species does not occur in riverine habitat. Alkali grassland on site is dominated by dense saltgrass instead of a mosaic of annual grasses and open soil which this species prefers. No habitat. 1Explanation of State and Federal Listing Codes and HCP/NCCP Coverage Federal listing codes: California listing codes: FE Federally listed as Endangered SE State listed as Endangered California Native Plant Society codes: 1B Rare or Endangered in California and elsewhere 2 Rare or Endangered in California, more common elsewhere 4 Plants of limited distribution - Watch list California Native Plant Society Threat Codes: .1 Seriously Endangered in California (over 80% of occurrences Threatened / high degree and immediacy of threat) .2 Fairly Endangered in California (20-80% occurrences Threatened) .3 Not very Endangered in California (<20% of occurrences Threatened or no current threats known) 4.2.2 FEDERAL AND/OR STATE LISTED AND CALIFORNIA RARE PLANT SPECIES Of the 71 special-status plant species known from the region, 11 are federal and/or state listed. Based on the field investigations, review of available databases and literature, familiarity with local flora, and on- site habitat suitability, 2 federal and/or state listed and California rare plant species were considered to have the potential to occur within the study area: soft bird’s-beak (Chloropyron molle subsp. molle) and Mason's lilaeopsis (Lilaeopsis masonii) (Table 6). These two species were considered targets for rare plant surveys conducted in June, July, and August 2013, and were not observed on site. 4.2.3 CALIFORNIA RARE PLANT RANK SPECIES Of the 71 special-status plant species known from the region, 60 are California Native Plant Society listed. Based on the field investigations, review of available databases and literature, familiarity with local flora, and on-site habitat suitability, 6 species are considered to have the potential to occur within the study area: Bolander’s water hemlock (Cicuta maculata var. bolanderi), woolly rose-mallow (Hibiscus lasiocarpos var. occidentalis), Delta tule pea (Lathyrus jepsonii var. jepsonii), Delta mudwort (Limosella australis), side-flowering skullcap (Scutellaria lateriflora), and Suisun Marsh aster (Symphyotrichum lentum) (Table 6). These six species were considered targets for rare plant surveys conducted in June, July, and August 2013, and were not observed on site. 4.3. SPECIAL-STATUS WILDLIFE Based on the field investigation, review of available databases and literature, familiarity with local fauna, and on-site habitat suitability, a total of 90 special-status fish and wildlife species were considered as part of this assessment (USFWS 1999, 2008, 2013a,b; CDFG 2011, CDFW 2013a,c; NOAA 2004, 2006). Eighteen were determined to have the potential to occur within the study area and could be affected by the project as proposed. These comprise four species listed as threatened or endangered, or designated as fully protected, and 14 special-status species considered to be rare, sensitive or declining by agency or non-governmental watchlists (Table 8). An additional twelve species are not expected to occur on site, but could not be entirely ruled out based on marginal habitat conditions, limited distribution information, or Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 27 the paucity of available life history data. The remaining taxa were ruled out based on the lack of suitable habitat (e.g., serpentine, interior sand dunes, vernal pools, scrub, dense woodlands, mud flats and shoreline habitats), local extirpations, lack of connectivity between areas of suitable and occupied habitat, incompatible land use, and habitat degradation. A complete list of all species considered as part of this assessment, their regulatory status, habitat requirements, local distribution, and potential for occurrence are listed in Appendix D. Special-status fish and wildlife species recorded in the California Natural Diversity Database (CDFW 2013a) are depicted in Figure 8. Table 8. Potentially Occurring Special-Status Fish and Wildlife Species SPECIES LISTING STATUS1 HCP/NCCP STATUS CRITICAL HABITAT POTENTIAL FOR OCCURRENCE Invertebrates Helminthoglypta nickliniana bridgesi Bridge’s coast range shoulderband Fed: None CA: SA - - Possible Fish Hypomesus transpacificus Delta smelt Fed: FT, CH CA: ST, AFS-T - Yes Possible Pogonichthys macrolepidotus Sacramento splittail Fed: None CA: SSC, AFS-V - - Possible Amphibians Rana draytonii California red-legged frog Fed: FT, CH CA: SSC Covered Not within study area Possible Reptiles Emys marmorata Western pond turtle Fed: None CA: SA Covered - Possible Birds Accipiter cooperii Cooper’s hawk (nesting) Fed: None CA: WL - - Possible Agelaius tricolor Tricolored blackbird (nesting colony) Fed: None CA: SSC, ABC, BCC Covered - Possible Asio flammeus Short-eared owl (nesting) Fed: None CA: SSC, ABC - - Possible Athene cunicularia Western burrowing owl (burrow sites & some wintering sites) Fed: None CA: SSC, BCC Covered - Possible Baeolophus inornatus Oak titmouse (nesting) Fed: None CA: SA, ABC - - Possible Circus cyaneus Northern harrier (nesting) Fed: None CA: SSC - - Possible Elanus leucurus White-tailed kite (nesting) Fed: None CA: FP Covered (No Take) - Possible Geothlypis trichas sinuosa Saltmarsh common yellowthroat Fed: None CA: SSC, BCC - - Possible Icteria virens Yellow-breasted chat (nesting) Fed: None CA: SSC - - Possible Lanius ludovicianus Loggerhead shrike (nesting) Fed: None CA: SSC, BCC - - Possible Laterallus jamaicensis coturniculus California black rail Fed: None CA: ST, FP, ABC, BCC - - Possible Melospiza melodia maxillaris Suisun song sparrow Fed: None CA: SSC, BCC - - Possible Picoides nuttallii Nuttall’s woodpecker (nesting) Fed: None CA: SA, ABC, BCC - - Possible Mammals None Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 28 1 Explanation of State and Federal Listing Codes Federal listing codes: California listing codes: FT Federally listed as Threatened ST State listed as Threatened CH Critical Habitat (Designated or Proposed) FP Fully Protected SSC California Species of Special Concern WL Watch List ABC The American Bird Conservancy maintains a Green List of all the highest priority birds for conservation in the continental United States and Canada. Based off the species assessments prepared by Partners in Flight (PIF) and has been expanded to include shorebirds, waterbirds and waterfowl. AFS American Fisheries Society identifies marine, estuarine and diadromous fish species that are at risk of extinction in North America. The AFS has designated the following four classifications in order of conservation importance E – Endangered, T – Threatened, V – Vulnerable, and CD – Conservation Dependent. BCC U.S. Fish and Wildlife Service Birds of Conservation Concern. List of migratory and nonmigratory bird species (beyond those already designated as federally threatened or endangered) that represent the Service’s highest conservation priorities. SA “Special Animals” is a general term that refers to all of the taxa the CNDDB is interested in tracking, regardless of their legal or protection status. This list is also referred to as the list of “species at risk” or “special status species”. The CDFW considers the taxa on this list to be those of greatest conservation need. 4.3.1 HCP/NCCP PLANNING SURVEYS In accordance with Section 6.3 of the HCP/NCCP, planning surveys were conducted to: 1) avoid and minimize impacts on covered species and natural land cover types to the maximum extent practicable on a regional scale; 2) provide the necessary data to track project impacts to allow the Implementing Entity to meet Plan requirements (e.g., land acquisition, stay ahead, wetland restoration); 3) simplify and reduce pre-project survey requirements relative to current and future environmental regulations without the HCP/NCCP; and 4) make survey requirements proportional to impacts—the survey burden should be lower on low-quality habitat than on high-quality habitat. Table 9 describes the results of the planning surveys for covered and no-take species as outlined in Table 6-1 in the HCP/NCCP. Habitat within the project area for each of the wildlife species in Table 9 is shown in Figures 9-13. Avoidance and minimization measures are included in Section 4.3.2. Table 9. Results of Planning Surveys for Covered and No-Take Wildlife Species12 LAND COVER TYPES SPECIES PLANNING SURVEY REQUIREMENTS PLANNING SURVEY OUTCOME San Joaquin kit fox • Assumed if within modeled range of species • Identify/map potential habitat • Not within modeled range of species Grasslands, oak savanna, agriculture, ruderal Western burrowing owl • Assumed if habitat is present • Identify/map potential habitat • Habitat present Giant garter snake • Aquatic habitat accessible from San Joaquin River • Identify/map potential habitat • Not within modeled range of species Aquatic land cover types: Ponds, wetlands, streams, slough, channels & marshes California tiger salamander • Ponds and wetlands in grassland, oak savannah, oak woodlands; vernal pools, reservoirs small lakes • Identify/map potential breeding habitat; document habitat quality/features; photo-document • No breeding habitat present 12 Table taken from “City/County of (blank) Application Form and Planning Survey Report to Comply with and Receive Permit Coverage under the East Contra Costa County Habitat Conservation Plan and Natural Community Conservation Plan” template dated June 16, 2010. Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 29 LAND COVER TYPES SPECIES PLANNING SURVEY REQUIREMENTS PLANNING SURVEY OUTCOME California red-legged frog • Slow-moving streams, ponds and wetlands • Identify/map potential breeding habitat; document habitat quality/features; photo-document • Breeding habitat present • Marginal quality breeding habitat Seasonal wetlands Longhorn fairy shrimp Vernal pool fairy shrimp Midvalley fairy shrimp Vernal pool tadpole shrimp • Vernal pools, sandstone rock outcrops, and sandstone depressions • Identify/map potential breeding habitat • No breeding habitat present Townsend’s big-eared bat • Rock formations with caves, mines, abandoned buildings outside of urban areas • Map/document potential breeding/roosting habitat • No breeding/roosting habitat present Swainson’s hawk • Potential nest sites (trees within species’ range usually below 200’) • Inspect large trees for presence/absence of nest sites • No nests identified • Not within modeled range of species Any land cover type Golden eagle • Potential nest sites (secluded cliffs with overhanging ledges; large trees) • Document/map potential nests • No nests identified • No nesting habitat present As outlined in Section 6.4.1. of the HCP/NCCP, several wildlife species that occur in the inventory area are listed as fully protected (as defined under Sections 3511 and 4700 of the California Fish and Game Code): white-tailed kite, peregrine falcon, golden eagle, and ringtail. As described in Chapter 1, CDFW cannot issue permits for take of these species. To comply with these regulations, covered activities will avoid any take of fully protected wildlife species as defined under the California Fish and Game Code. All three fully protected raptor species forage widely throughout the inventory area but nest in discrete locations. To comply with this measure, project proponents covered under the HCP/NCCP must not disturb or destroy nests of these fully protected species or of other birds (per Section 3503 of the California Fish and Game Code). 4.3.2 FEDERAL/STATE LISTED, PROPOSED, CANDIDATE, OR FULLY PROTECTED FISH AND WILDLIFE SPECIES Invertebrates Ten federally- or State-listed, proposed, candidate, or fully protected invertebrate species13 were considered during this assessment (CDFW 2013a,c; USFWS 2013a,b); none were determined to have the potential to occur within the study area (Appendix D). However, one species, vernal pool fairy shrimp, was reported approximately one-mile to the west along in a unvegetated depression on a dirt access road along the BNSF railroad tracks in 1999 (EONDX #41660). This species is not expected to occur within the study area based on the lack of suitable vernal pools and playa pools typically occupied by this species. 13 Lange’s metalmark butterfly, conservancy fairy shrimp, longhorn fairy shrimp, vernal pool fairy shrimp, San Bruno elfin butterfly, valley elderberry longhorn beetle, delta green ground beetle, vernal pool tadpole shrimp, Callippe silverspot butterfly and California freshwater shrimp. Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 30 Fish Eight federally- or State-listed, proposed, candidate, or fully protected fish species14 were considered during this assessment (CDFW 2013a,c; NOAA 2004, 2006; USFWS 2013a,b), including two steelhead Evolutionary Significant Units (ESU), two Chinook salmon ESUs, one Coho salmon ESU and one green sturgeon DPS. One species, the delta smelt, was determined to have the potential to occur within the study area (Appendix D). The study area is within the steelhead California Central Valley DPS and suitable habitat is present within the study area; however, the species is not reported from West Antioch Creek (Leidy 2007) and is not expected to occur within the study area. Delta Smelt (Hypomesus transpacificus) Status, Distribution and Habitat Requirements Delta smelt was federally listed as a threatened species on March 5, 1993 (58 FR 12854), State listed as threatened on December 9, 1993, and was proposed for State listing as endangered on January 16, 2009 (CDFG 2011). A Five Year Status Review for the delta smelt was published on March 31, 2004 (Service 2004). Delta smelt are slender-bodied euryhaline fish endemic to Sacramento-San Joaquin Delta and its tributaries extending west to Suisun and San Pablo bays (Moyle 2002). They occur in the Sacramento River upstream to Isleton and in the San Joaquin River to Mossdale (Moyle 2002). Delta smelt spawn in freshwater from January to July and rear in shallow water habitat where salinities range from 2-7 ppt (Moyle 2002, 59 FR 65256). Larval sampling surveys suggest spawning occurs in the Sacramento River, Barker, Lindsey, Cache, Georgiana, Prospect, Beaver, Hog, and Sycamore sloughs, in the San Joaquin River off Bradford Island including Fisherman’s Cut, False River along the shore zone between Frank’s and Webb tracts (Wang 1991). During wet years spawning may also occur in Montezuma Slough and Suisun Slough (Wang 1986). Preferred rearing habitat is within the region where fresh and brackish water mix, typically in the region of Suisun Bay, which is associated with the area of highest zooplankton productivity (Knutson and Orsi 1983, Orsi and Mecum 1986, Moyle 2002). Delta smelt typically school in the top 2 m of the water column in the open waters of the Delta and Suisun Bay where they feed primarily on planktonic copepods, cladocerans and amphipods. Critical Habitat Critical habitat for delta smelt was designated on December 19, 1994 (59 FR 65256) and a recovery plan was published in 1996 (USFWS 1996). The Primary Constituent Elements (PCE) for the delta smelt are: 1) spawning habitat – shallow, fresh or slightly brackish backwater sloughs and edgewaters; 2) larval and juvenile transport – to ensure delta smelt larvae are transported from the spawning area to productive rearing or nursery habitat, which comprises the Sacramento and San Joaquin rivers and their tributaries; 3) rearing habitat – maintenance of a 2 ppt isohaline salinity condition and suitable water quality; and 4) adult migration – adequate flow and suitable water quality to attract and provide unrestricted access to suitable spawning habitat (59 FR 65256). Specific areas that have been identified as important delta smelt spawning habitat include Barker, Lindsey, Cache, Prospect, Georgiana, Beaver, Hog, and Sycamore sloughs and the Sacramento River in the Delta, and tributaries of northern Suisun Bay (59 FR 65256). The study area is located within designated critical habitat and contains all four PCE’s (Figure 9). Habitat Assessment and Occurrence in the Project Vicinity West Antioch Creek provides suitable breeding and rearing for delta smelt and contributes toward adequate water flow and suitable water quality to support larval and juvenile transport and adult 14 Green sturgeon (southern DPS), tidewater goby, delta smelt, Coho salmon (Central California Coast ESU), steelhead (Central California Coast ESU, California Central Valley DPS), and Chinook salmon (Central Valley spring-run ESU, Sacramento River winter-run ESU). Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 31 migration; although no spawning records have been reported for this watershed. West Antioch Creek is shown as an intermittent blue-line stream on the Antioch North and Antioch South 7.5 minute USGS quadrangles; however, residential and commercial surface water runoff has led to perennial flows in the creek. South of Tenth Street the creek consists of a narrow earthen channel that flows downstream through two large concrete box culverts into a concrete-lined trapezoidal channel running under and adjacent to a vacant car dealership parking lot. In the vicinity of 8th Street the channel opens into a wider, natural substrate channel and floodplain that has been modified for flood control and is comprised of silt, clay and gravel substrate. The creek flows into a tidally influenced marsh at the northern project terminus, emptying into the San Joaquin River. The study area could potentially support spawning delta smelt; however, no spawning records have been reported for this watershed. West Antioch Creek is more likely to support delta smelt by contributing to adequate water flows in the delta, which supports larval development, transport and adult migration; however, the presence of the species cannot be ruled out. Potential Project Related Effects There is 6.47 acres of Delta Smelt habitat in the study area (Figure 9). The project is likely to affect 4.44 acres of delta smelt habitat resulting in mortality or injury to any or all delta smelt life history stages by increasing turbidity, reducing water quality, temporarily altering shallow water habitat, and changing water velocities. The project may also reduce recruitment, increase the risk of predation, reduce feeding success, and temporarily degrade overall habitat quality. Suspended sediments may contain toxic substances, which may interfere with the development and survivability of delta smelt. The vegetation upon which delta smelt may depend for egg attachment and refugia may become silted over or removed by the proposed actions. As shallow water habitat is removed and turbidity increased, the delta smelt’s feeding, breeding, and sheltering habitat may be reduced as food sources associated with the aquatic plants and found in the water column are removed, and habitat used for spawning substrate and refugia is eliminated. Recommended Avoidance and Minimization Efforts To minimize potential impacts to delta smelt the following avoidance and minimization measures should be implemented: 1. To minimize take of delta smelt and minimize disturbance to delta smelt habitat, desilting activities will be confined to a single calendar year. However, based on the extent of desilting required, in-stream work will be conducted during an extended work window from March 15 to October 15. If work cannot be completed by October 15, the City will request an extension. 2. Standard BMPs should be implemented to maintain water quality and control sedimentation. 3. Prior to dewatering and cofferdam installation/removal, a USFWS-approved biologist should conduct a fish rescue for native fish and immediately relocate them to a suitable location upstream or downstream of the project site as directed by the USFWS. The USFWS-approved biologist should be on site during initial dewatering activities to ensure any fish that remain in the drawdown area are relocated to nearby suitable habitat. The City should submit the qualifications of all potential USFWS-approved biologists to the USFWS for review and approval at least thirty (30) calendar days prior to project initiation. 4. Temporary fills including cofferdams and access roads should be completely removed following project completion. 5. If dewatering is used, pump intakes should be screened with mesh in accordance with NMFS fish screening criteria for anadromous salmonids (NOAA 1997) to prevent uptake of steelhead. Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 32 6. Sediment curtains should be placed downstream of the construction area during the installation and removal of the cofferdam to minimize downstream sediment transfer. 7. A spill prevention plan for potentially hazardous materials should be prepared that includes procedures for handling and storing potentially hazardous materials, as well as cleanup and reporting of any spills. If necessary, containment berms should be constructed to prevent spilled materials from reaching the creek channel. 8. Equipment and materials should not be stored within 50 feet of the creek unless it is on established paved areas. However, if it is necessary to store equipment or materials within 50 feet of the creek, temporary containment berms should be constructed around the equipment/materials. Staging and storage areas for equipment, materials, fuels, lubricants, and solvents should be located outside of the stream channel and banks. Secondary containment should be provided for stationary equipment such as motors, pumps, generators, and compressors located within or adjacent to the West Antioch Creek to contain potential spills. Any equipment or vehicles driven or operated within or adjacent to the creek should be checked and maintained daily to prevent leaks of materials that, if introduced to water, could be deleterious to aquatic life. Maintenance and fueling should be conducted in an area that meets the criteria set forth in the spill prevention plan (i.e., away from the creek). 9. No fueling, cleaning or maintenance of vehicles or equipment, or placement of construction debris, spoils or trash should occur within 50 feet of the creek or floodplain as measured from the top of bank unless it occurs in designated refueling/staging areas on existing paved surfaces with secondary containment in place. Contractors should inspect all equipment/vehicles for leaks prior to using on the project site and should be inspected regularly throughout the project duration. 10. All temporarily disturbed areas should be revegetated with native species suitable for the area. 11. Due to the presence of New Zealand mud snails (a non-native species that range in size from a grain of sand to 1/8 inch in length and are black or brown in color) within West Antioch Creek, which are classified as an invasive species by CDFW, the following precautions are advised: a. All project personnel should be trained in the identification, preventative measures, and physical and chemical cleaning methodologies for New Zealand mud snails prior to working on the project. Brochures or identification cards should be available to all project personnel and CDFW informational posters should be installed at the project site. b. After work in West Antioch Creek, all waders, boots, gear, and other equipment should be thoroughly inspected for New Zealand mud snails. A cleaning station should be established on the project site and maintained throughout the project duration employing both physical and chemical cleaning methodologies. The cleaning station should implement the preventative and treatment methodologies in accordance with CDFW available at http://www.dfg.ca.gov/invasives/mudsnail/. c. A designated cleaning area should be established for heavy equipment and vehicles. All heavy equipment should be cleaned prior to leaving the site in accordance with CDFW guidelines. d. Fish should be relocated to a safe location outside the work area, but should not be translocated to another location other than West Antioch Creek. Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 33 Amphibians Two federally- or State-listed, proposed, candidate, or fully protected amphibian species15 were considered during this assessment (CDFW 2013a,c; USFWS 2013a,b); one was determined to have the potential to occur within the study area (Appendix D). California Red-Legged Frog (Rana draytonii) Status, Distribution and Habitat Requirements The California red-legged frog was listed by the USFWS as a threatened species on May 23, 1996 (61 FR 25813) and is designated a California Species of Special Concern by CDFG (2011). A recovery plan was published for the California red-legged frog on September 12, 2002 (USFWS 2002). The California red-legged frog is one of two species of red-legged frog endemic to the Pacific Coast. The northern red-legged frog (Rana aurora) ranges from southern British Columbia, Canada south to northern Marin County. The California red-legged frog is distributed throughout 26 counties in California, but is most abundant in the San Francisco Bay Area. Populations have become isolated in the Sierra Nevada, northern Coast, northern and southern Transverse and Peninsular Ranges (Jennings and Hayes 1994, Stebbins 2003). Red-legged frogs occurring from southern Del Norte County to northern Marin County are known to hybridize, often exhibiting characteristics of both species (Hayes and Krempels 1986). California red-legged frogs predominantly inhabit permanent water sources such as streams, lakes, marshes, natural and man-made ponds, and ephemeral drainages in valley bottoms and foothills up to 1,500 meters (4,921 feet) in elevation (Jennings and Hayes 1994, Bulger et al. 2003, Stebbins 2003). Adults breed in a variety of aquatic habitats, while larvae and metamorphs use streams, deep pools, backwaters of streams and creeks, ponds, marshes, sag ponds, dune ponds, and lagoons. Stock ponds are frequently used for breeding when they provide suitable hydroperiod, pond structure, vegetative cover, and are managed to control nonnative predators such as bullfrogs and exotic fish. Breeding occurs between November and April within still or slow-moving water with light to dense, riparian or emergent vegetation, such as cattails (Typha spp.), tules (Scirpus spp.) or overhanging willows (Salix spp.) (Hayes and Jennings 1988). Egg masses are attached to vegetation below the surface and hatch after 6 to 14 days (Storer 1925, Jennings and Hayes 1994). Larvae undergo metamorphosis 3½ to 7 months following hatching and reach sexual maturity 2 to 3 years of age (Jennings and Hayes 1984, 1994). Tatarian (2008) noted that a 57% majority of frogs fitted with radio transmitters in the Round Valley of eastern Contra Costa County stayed at their breeding pools, whereas 43% moved into adjacent upland habitat or to other aquatic sites. This study reported a peak of seasonal terrestrial movement in the fall months corresponding to 0.2-inches of precipitation that tapered off into spring. Upland movement activities ranged from 3 to 233 feet, averaging 80 feet, and were associated with a variety of refugia including ground squirrel burrows at the bases of trees or rocks, logs, grass thatch, crevices, cow hoof prints, and a downed barn door; others were associated with upland sites lacking refugia (Tatarian 2008). The majority of terrestrial movements lasted from 1 to 4 days; however, one female was reported to remain in upland habitat for 50 days (Tatarian 2008). Uplands closer to aquatic sites were more often used and were more commonly associated with areas exhibiting higher object cover, e.g. small woody debris, rocks, and vegetative cover. Most frogs move away from breeding ponds to upland areas. The distance moved is site dependent, though one recent study shows that only a few frogs move farther than the nearest suitable non-breeding habitat (Fellers and Kleeman 2007). In this Marin County study, the furthest distance traveled was 1.4 15 California red-legged frog and California tiger salamander – Central Valley DPS Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 34 kilometers (0.9-mile) and most dispersing frogs moved through grazed pastures to reach the nearest riparian habitat (Fellers and Kleeman 2007). Bulger et al. (2003) did not observe habitat preferences among frogs moving between ponds. They did note that when breeding ponds dry, California red-legged frogs use moist microhabitats of dense shrubs and herbaceous vegetation within 100 meters (328 feet) of ponds. Critical Habitat Critical habitat was designated for this species on April 13, 2006 (71 FR 19244) and revisions to the critical habitat designation were published on March 17, 2010 (75 FR 12816). Critical habitat unit designations were determined based on the physical and biological features that are essential to the conservation of the California red-legged frog. Critical habitat units CCS-1, 2A and 2B are located within Contra Costa County, and unit ALA-1A borders the southwest corner of the County; however, the study area is not located within designated critical habitat units. Contra Costa County is located within the East San Francisco Bay recovery unit (CDFG 2006b). Habitat Assessment and Occurrence in the Project Vicinity The creek south of 10th Street consists of a narrow earthen channel that flows downstream through two large concrete culverts into a concrete-lined trapezoidal channel under a vacant car dealership parking lot. The channel opens up into a slightly wider natural channel that has been modified for flood control. Although the earthen and concrete-lined channel do not provide suitable breeding habitat, the natural reach of West Antioch Creek does provide suitable breeding and non-breeding aquatic habitat (Figure 10). The lower reach of the creek flows within a low flow channel and expanded floodplain. Near the confluence with the tidally influenced marsh the creek is increasingly filled with cattails with small areas of open water habitat. Upland and dispersal habitat is along the riparian corridor and degraded ruderal lots above top of bank. The ruderal field on the west side of the creek, north of the vacant car dealership parking lot also provides low quality upland habitat with minimal cover from shrubs or woody debris. This species has not been reported north of State Route 4 and both branches of West Antioch Creek as well as Markley Creek, a main tributary, are underground for at least a half-mile before day-lighting into a natural channel. The nearest reported occurrence (EONDX #48404), consisting of four adult frogs, is located approximately 1.8 miles upstream and south of SR-4 in Markley Canyon Creek in 2002 (Figure 8) (CDFW 2013a). Potential Project Related Effects Within the study area there is 6.47 acres of potential California red-legged frog breeding habitat, 2.23 acres of non-breeding aquatic habitat, and 18.44 acres of upland and dispersal habitat (Figure 10). The project would result in the temporary loss of 4.44 acres of potential California red-legged frog breeding habitat, 2.20 acres of non-breeding aquatic habitat, and 13.75 acres of upland and dispersal habitat (3.29 in the project extent and 10.46 in potential staging areas). If present within the study area, the project could result in direct mortality, injury or harassment to individual California red-legged frogs and may disrupt breeding, foraging, and dispersal activities, and normal behaviors. Replacement of the concrete- lined v-ditch with an earthen lined creek channel would benefit the species by restoring a portion of the channel to more natural conditions. HCP/NCCP Conservation Measures (HCP/NCCP Chapter 6, Section 6.4.3) 1) Preconstruction Survey No preconstruction surveys are required by the HCP/NCCP. 2) Avoidance and Minimization Measures Written notification to USFWS, CDFW, and the Implementing Entity, including photos and habitat assessment, is required prior to disturbance of any suitable breeding habitat. The project proponent Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 35 will also notify these parties of the approximate date of removal of the breeding habitat at least 30 days prior to this removal to allow USFWS or CDFW staff to translocate individuals, if requested. USFWS or CDFW must notify the project proponent of their intent to translocate California red- legged frog within 14 days of receiving notice from the project proponent. The applicant must allow USFWS or CDFW access to the site prior to construction if they request it. There are no restrictions under this HCP/NCCP on the nature of the disturbance or the date of the disturbance unless USFWS or CDFW notify the project proponent of their intent to translocate individuals within the required time period. In this case, the project proponent must coordinate the timing of disturbance of the breeding habitat to allow USFWS or CDFW to translocate the individuals. USFWS and CDFW shall be allowed 45 days to translocate individuals from the date the first written notification was submitted by the project proponent (or a longer period agreed to by the project proponent, USFWS, and CDFW). 3) Construction Monitoring No construction monitoring is required by the HCP/NCCP. Recommended Avoidance and Minimization Efforts To minimize potential impacts to California red-legged frogs the following avoidance and minimization measures should be implemented: 1. No work should occur during or within 24 hours following a rain event exceeding 0.2-inch as measured by the NOAA National Weather Service for Concord, CA (KCCR) base station available at: http://www.wrh.noaa.gov/mesowest/getobext.php?wfo=mtr&sid=KCCR&num=72&raw =0. 2. To prevent California red-legged frogs from becoming entangled, trapped or injured, erosion control materials that use plastic or synthetic mono-filament netting should not be used. This includes products that use photodegradable or biodegradable synthetic netting, which can take several months to decompose. Acceptable materials may include tackified hydroseeding compounds and natural fibers such as jute or twine with a wide aperture mesh. 3. A USFWS-approved biologist(s) should be on site during all project activities that occur below the top of bank that may result in take of California red-legged frogs. The City should submit the qualifications of all potential USFWS-approved biologists to the USFWS for review and approval at least thirty (30) calendar days prior to project initiation. 4. Preconstruction surveys should be conducted by a USFWS-approved biologist(s) immediately prior to the initiation of any ground disturbing activities and vegetation clearing that may result in take of California red-legged frogs. All suitable aquatic and upland habitat including refugia habitat such as dense vegetation, small woody debris, refuse, burrows, should be thoroughly inspected. The USFWS-approved biologist(s) should conduct clearance surveys at the beginning of each day and regularly throughout the workday when construction activities are occurring that may result in take of California red-legged frogs. If a California red-legged frog is observed, the USFWS-approved biologist(s) should implement the species observation and handling protocol outlined below unless otherwise directed by the USFWS. 5. If a California red-legged frog(s) is encountered in the action area, work activities within 50 feet of the California red-legged frog(s) should cease immediately and the Resident Engineer should Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 36 be notified. The Resident Engineer will notify the USFWS-approved biologist. Based on the professional judgment of the USFWS-approved biologist, if project activities can be conducted without injuring or killing the California red-legged frog(s), it may be left at the location of discovery and monitored by the USFWS-approved biologist. All project personnel should be notified of the finding and at no time will work occur within 50 feet of the California red-legged frog(s) without a USFWS-approved biologist present. If it is determined by the USFWS-approved biologist that relocating the California red-legged frog(s) is necessary, the following steps should be followed: a. Prior to handling and relocation the USFWS-approved biologist should take precautions to prevent introduction of amphibian diseases in accordance with the Revised Guidance on Site Assessments and Field Surveys for the California Red-legged Frog (USFWS 2005). Disinfecting equipment and clothing is especially important when biologists are coming to the project area to handle amphibians after working in other aquatic habitats. b. California red-legged frogs should be captured by hand, dipnet or other USFWS- approved methodology, transported by hand, dipnet or temporary holding container, and released as soon as practicable the same day of capture. Handling of California red- legged frogs should be minimized to the maximum extent practicable. Holding/transporting containers and dipnets should be thoroughly cleaned, disinfected and rinsed with freshwater prior to use within the action area. c. California red-legged frogs should be relocated to nearby suitable habitat outside of the work area and released at a location approved by the USFWS. If suitable habitat cannot be identified, the USFWS should be contacted to determine an acceptable alternative. If California red-legged frogs are relocated, the USFWS should be notified within 24 hours of relocation. Reptiles Two federally- or State-listed, proposed, candidate, or fully protected reptile species16 were considered during this assessment (CDFW 2013a,c; USFWS 2013a,b); however, neither were determined to have the potential to occur within the study area (Appendix D). Birds Eleven federally- or State-listed, proposed, candidate, or fully protected bird species17 were considered during this assessment (CDFW 2013a,c; USFWS 2013a,b); two of which were determined to have the potential to nest/winter, roost and forage within the study area (Appendix D). Although suitable habitat is present within the freshwater marsh area for the California clapper rail, this species has not been reported west of Bay Point in northern Contra Costa County; the nearest occurrence is located 9.3 miles to the west (CDFW 2013a). Therefore it is not expected to occur within the study area. 16 Alameda whipsnake and giant garter snake. 17 Golden eagle, Swainson’s hawk, western snowy plover, white-tailed kite, American peregrine falcon, California black rail, California brown pelican, California clapper rail, bank swallow, California least tern and northern spotted owl. Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 37 California Black Rail (Laterallus jamaicensis coturniculus) Status, Distribution and Habitat Requirements The California black rail is State-listed as threatened and designated as fully protected by §3511 of the California Fish and Game Code. It is the smallest subspecies inhabiting North America and is distinguished by its slender bill and darker brown coloration on its crown and back. California black rails are secretive and inhabit shallow, tidal and freshwater marshes and wetlands characterized by tall, dense stands of emergent vegetation such as cattails (Typha spp.) and bulrushes (Scirpus spp.). In the Bay Area, black rails prefer habitat associated with alkali heath (Frankenia grandifolia), and high insect and low amphipod abundance (Eddleman et al. 1994). Within Central California, black rails are year-round residents that occur throughout the San Francisco Bay estuary, Bodega Bay, Tomales Bay, Morro Bay, and Bolinas Lagoon (Eddleman et al. 1994). Nests are built on the ground in tufts of grass or Salicornia spp. beginning in mid-March (Baicich and Harrison 2005). The breeding season lasts through mid-July and the species is typically single-brooded. Precocial young leave the nest within 24 hours of hatching (Baicich and Harrison 2005). Critical Habitat Critical habitat is not designated for this species. Habitat Suitability and Occurrence Data The permanent wetland at the northernmost section of the project area is comprised of narrowleaf cattail forming nearly complete cover except within the low flow channel. Other vegetation species along the margins include flatsedge, perennial pepperweed, Himalayan blackberry, pampas grass, marsh baccharis and scattered arroyo willows. The study area does not contain pickleweed and therefore, does not support California black rail nesting habitat (Figure 11). However, the permanent wetland provides year-round nonbreeding habitat. The nearest reported occurrences are located approximately 2.3 miles to the northwest (EONDX #69045) on Browns Island as reported from surveys conducted between 2004-2006 (CDFW 2013a). Potential Project-Related Effects The project will not result in direct impacts to California black rail nesting habitat based on the lack of nesting habitat within the study area; however, pickleweed dominated habitat may be present within the greater Dow Wetlands Preserve. In such case, project activities could result in nest disturbance, abandonment and nest failure. Disturbance could cause short-term impacts such as failure to breed, nest abandonment, lower numbers of eggs, juvenile abandonment, and overall lower juvenile survivorship. There is 4.93 acres of nonbreeding habitat in the study area (Figure 11). Desilting of the lower reach of West Antioch Creek downstream of 4th Street will result in the loss of 3.01 acres of nonbreeding habitat through the removal of cattails. Such disturbance may alter the bird’s behavior in ways that result in injury, mortality, or reduced foraging success; the temporary loss of habitat due to avoidance of areas that have suitable habitat but intolerable levels of disturbance; and increased movement or flushing from cover, or altered activity patterns, that reduce energy reserves and increase predation risk. Additional Recommended Avoidance and Minimization Measures To minimize potential impacts to California black rails, the following avoidance and minimization measures should be implemented: 1. Within 700 feet of the project footprint, focused preconstruction surveys for active California black rail nests, broods and calling centers should be conducted by a CDFW-approved biologist(s) within two weeks prior to the start of construction and monthly thereafter throughout the duration of the nesting season from February 1 to September 30. If active nests – nests with egg(s) or young present – broods, or calling centers are located the survey area, all construction Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 38 activities within 700 feet of the nest, brood or call center should cease immediately, CDFW should be notified within 24 hours of the observation and a 700 foot no-disturbance buffer should be established until the young have fledged unless otherwise directed by CDFW. 2. A CDFW-approved biologist(s) should be present on site to monitor for California black rails during construction activities occurring downstream of 4th Street. The biological monitor should have the authority to stop work if deemed necessary for any reason to protect federally listed species. If a California black rail is observed in the work area, work within 100 feet of the rail(s) should cease immediately and the CDFW-approved biologist(s) should monitor the rail until it leaves the work area. If the rail does not leave the work area, work should not restart until after the CDFW have made a decision on how to proceed with further construction activities. CDFW should be notified within 24 hours of an observation of a California black rail. White-tailed Kite (Elanus leucurus) Status, Distribution and Habitat Requirements The white-tailed kite is designated as a fully protected species by §3511 of the California Fish and Game Code. This species receives additional protection under the Migratory Bird Treaty Act (MBTA) and California Fish and Game Code §3503. White-tailed kites inhabit open grasslands and savannahs, and breed in a variety of habitats, including grasslands, cultivated fields, oak woodlands and suburban areas where prey is abundant. Nests are built in trees typically near a water source and may occur in suburban areas with adjacent open areas with abundant prey. Breeding occurs between February and July and the species can be double-brooded in some years (Baicich and Harrison 2005). During the non-breeding season, white-tailed kites may roost communally (Dunk 1995). White-tailed kites prey on small mammals, reptiles and occasionally, birds. Habitat Assessment and Occurrence in the Project Vicinity Suitable nesting and roosting habitat is present in the mature trees throughout the study area (Figure 12), and suitable foraging habitat is available in the open riparian and ruderal grassland areas. No white-tailed kites or their nests were observed within the study area; however, a total of four nesting occurrences have been reported within 10 miles of the study area (CDFW 2013a). The nearest two reports of breeding are located approximately 2.2 miles to the northwest in 2005 (EONDX 64354) and approximately 3.7 miles to the northeast in 2004 (EONDX 54958) (CDFW 2013a). White-tailed kite are known to breed throughout all of Contra Costa County (CCCBBA 2002). Potential Project Related Effects The project would not result in the loss of known white-tailed kite nests, but may result in the loss of potential nesting trees and foraging habitat. If present, the project could result in harassment to individual white-tailed kites and may temporarily disrupt foraging activities. Additional Recommended Avoidance and Minimization Measures To minimize potential impacts to white-tailed kites, the following avoidance and minimization measures should be implemented: 1. The removal or trimming of tree within 250 feet of the project footprint should be conducted during the non-breeding season, i.e. between September 1 and February 1, to avoid impacts to nesting white-tailed kites. If tree removal during the non-breeding season is infeasible, trimming or delimbing of suitable trees to discourage nesting should be conducted during the non-breeding season. 2. If project construction begins during the breeding season, i.e. February 1 to August 31, preconstruction surveys should be conducted within the project footprint and a 300-foot buffer, Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 39 by a qualified biologist no more than two weeks prior to equipment or material staging, pruning/grubbing or surface-disturbing activities. 3. If active nests (i.e. nests in the egg laying, incubating, nestling or fledgling stages) are found within 300 feet of the project footprint, non-disturbance buffers should be established at a distance sufficient to minimize disturbance based on the nest location, topography, cover, the nesting pair’s tolerance to disturbance and the type/duration of potential disturbance. No work should occur within the non-disturbance buffers until the young have fledged as determined by a qualified biologist. Buffer size should be determined in cooperation with CDFW and USFWS based on the type of work activity to be performed and the sensitivity of the species/individual(s) to disturbance. If buffers are established and it is determined that project activities are resulting in nest disturbance, work should cease immediately and the CDFW and USFWS should be contacted for further guidance. Mammals Two federally- or State-listed, proposed, candidate, or fully protected mammal species18 were considered during this assessment (CDFW 2013a,c; USFWS 2013a,b); neither of which were determined to have the potential to occur within the study area (Appendix D). 4.3.3 SENSITIVE AND LOCALLY RARE WILDLIFE SPECIES Invertebrates Eighteen sensitive or locally rare invertebrate species19 were considered during the preparation of this assessment (CDFG 2011; CDFW 2013a); one species was determined to have the potential to occur within the study area (Appendix D). Bridges’ Coast Range Shoulderband Snail (Helminthoglypta nickliana bridgesi) Status, Distribution and Habitat Requirements Bridge’s Coast Range shoulderband snail has no formal protection or legal status; however, it is tracked as a Special Animal by the California Department of Fish and Game (CDFG 2011). The ecological requirements of the species include rock piles, thistles and weedy grasslands on open hillsides (CDFW 2013a). Also found under woody debris in streamside oak woodland habitat. Their known range includes the hillsides of Contra Costa County and northern Alameda Counties; recorded in the west slope of Berkeley Hills, Marsh Creek Canyon, Marsh Creek Springs, Tilden Park, Point Isabel (Roth 1999). Habitat Assessment and Occurrence in the Project Vicinity Suitable habitat is present within the ruderal grassland vegetation community types within the study area. One occurrence (EONDX 23088) was recorded from Perkins Canyon on the eastern slope of Mt. Diablo in 1995 (CDFW 2013a). A single shell was observed under a piece of plywood in the ruderal grasslands within the study area on April 23, 2009, 2.5 miles to the east while conducting a site assessment for the Oakley-Trembath Flood Detention Basin (Nomad 2010a). 18 Salt marsh harvest mouse and San Joaquin kit fox. 19 Blennospermatis vernal pool andrenid bee, Antioch dunes anthicid beetle, Sacramento anthicid beetle, midvalley fairy shrimp, San Joaquin dune beetle, Hairy water flea, Antioch efferian robberfly, redheaded sphecid wasp, Bridges’ coast range shoulderband snail, curved-foot hygrotus diving beetle, Middlekauff’s shieldback katydid, California linderiella, molestan blister beetle, Hurd’s metapogon robberfly, Antioch multilid wasp, Antioch andrenid bee, Antioch specid wasp, and Antioch dunes halcitid beetle. Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 40 Potential Project Related Effects The project would result in the loss of ruderal areas that support tall, weedy vegetation suitable for this species. If present, the project could result in the direct mortality or injury of individuals of this species. Recommended Avoidance and Minimization Measures Impacts to Bridges’ coast range shoulderband snails can be avoided or minimized by implementing the following mitigation measures: 1. Minimize habitat loss in areas known to support Bridges’ Coast Range shoulderband snail. Fish Three sensitive or locally rare fish species20 were considered during the preparation of this assessment (CDFG 2011; NOAA 2004, 2006; CDFW 2013a); one of which was determined to have the potential to occur within the study area (Appendix D). The study area lies within the designated ESU for the Chinook salmon Central Valley fall/late fall-run ESU and suitable habitat is present within West Antioch Creek; however, the species has not been reported from West Antioch Creek (Leidy 2007). The reaches of the creek upstream of the study area provide low quality habitat for salmonids based on low flows, silty sediment, and portions of the creek that have been undergrounded or channelized. There is the potential for Chinook salmon to wander into the reach of creek within the study area, but this is unlikely; therefore, this species is not expected to occur within the study area. Sacramento Splittail (Pogonichthys macrolepidotus) Status, Distribution and Habitat Requirements The Sacramento splittail is designated a California Species of Special Concern by CDFW and is designated as vulnerable by the American Fisheries Society (CDFG 2011). Endemic to the lakes and rivers of the Central Valley, the Sacramento splittail is now confined to the Delta, Suisun Bay, lower Napa River, lower Petaluma River, the San Francisco Estuary and associated marshes (Moyle 2002). They inhabit slow-moving river sections, dead-end sloughs and require flooded vegetation for spawning and foraging for young. They have been reported from the deep-water channel near Chipps Island during midwater trawl salmonid surveys every year from 1976-2002 (Moyle et al. 2003). Spawning occurs from late February to early July; peaking March through April (Moyle 2002). The Yolo and Sutter bypasses are important spawning grounds for this species (Moyle 2002). Splittail feed on bottom dwelling invertebrates such as opossum shrimp (Meomysis mercedis), benthic amphipods (Corophium), harpactacoid copepods, clams, and crustaceans (Moyle 2002). Habitat Suitability and Occurrence Data Suitable habitat is present within study area. This species is reported from Delta, Marsh Creek, Walnut Creek and San Ramon Creek (Leidy 2007). Although the species has not been reported from West Antioch Creek (Leidy 2007), there is a possibility of Sacramento splittail occurring within the lower reached of West Antioch Creek within the study area. No in-stream barriers to movement are present between the study area and San Joaquin River. Potential Project-Related Effects If present within the study area, desilting of the lower reaches of West Antioch Creek and channel improvements could result in injury or mortality to Sacramento splittail. In-stream work could result in increasing turbidity, reducing water quality, temporarily altering habitat, and changing water velocities. The project may also reduce feeding success and temporarily degrading overall habitat quality. 20 Chinook salmon Central Valley fall/late fall-run ESU, Sacramento perch and Sacramento splittail. Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 41 Additional Recommended Avoidance and Minimization Measures To minimize potential impacts to Sacramento splittail, the avoidance and minimization measures outlined for the delta smelt should be implemented. Amphibians One sensitive or locally rare amphibian species21 was considered during the preparation of this assessment (CDFG 2011; CDFW 2013a), but was determined not to have the potential to occur within the study area (Appendix D). Reptiles Three sensitive or locally rare reptile species22 were considered during this assessment (CDFG 2011; CDFW 2013a); one of which was determined to have the potential occur within the study area (Appendix D). Western pond turtle (Emys marmorata) Status, Distribution and Habitat Requirements The western pond turtle, a California Species of Special Concern (CDFG 2011), is the only fresh-water turtle native to greater California and is distributed along much of the western coast from the Puget Sound in Washington south to the Baja Peninsula, Mexico (Storer 1930). The literature describes two subspecies of western pond turtle; the northwestern pond turtle (C. m. marmorata) and the southwestern pond turtle (C. m. pallida). Overall, western pond turtles are habitat generalists, and have been observed in slow- moving rivers and streams (e.g. in oxbows), lakes, reservoirs, permanent and ephemeral wetlands, stock ponds, and sewage treatment plants. They prefer aquatic habitat with refugia such as undercut banks and submerged vegetation (Holland 1994), and require emergent basking sites such as mud banks, rocks, logs, and root wads to thermoregulate their body temperature (Holland 1994, Bash 1999). Pond turtles are omnivorous and feed on a variety of aquatic and terrestrial invertebrates, fish, amphibians and aquatic plants. Western pond turtles regularly utilize upland terrestrial habitats, most often during the summer and winter, especially for oviposition (females), overwintering, seasonal terrestrial habitat use, and overland dispersal (Reese 1996, Holland 1994). Females have been reported ranging as far as 500 meters (1,640 feet) from a watercourse to find suitable nesting habitat (Reese and Welsh 1997). Their nest sites are most often situated on south or west-facing slopes, are sparsely vegetated with short grasses or forbs, and are scraped in sands or hard-packed, dry, silt or clay soils (Holland 1994, Rathbun et al. 1992, Holte 1998, Reese and Welsh 1997). Western pond turtles exhibit high site fidelity, returning in sequential years to the same terrestrial site to nest or overwinter (Reese 1996). Females lay their clutch as early as late April in southern and central California to late July, although they predominantly lay in June and July. In the early morning or late afternoon, gravid females leave the water and move upland to nest (Holland 1994). Natural incubation times vary, ranging from 80 – 100+ days in California. In northern California and Oregon, hatchlings remain in the nest after hatching and overwinter, emerging in the spring. In southern and central California, those that do not overwinter emerge from the nest in the early fall (Holland 1994). Habitat Assessment and Occurrence in the Project Vicinity Two western pond turtles were observed during the April 23, 2009 site visit; one basking on a log in mid- channel and the other in the creek itself. The northern portion of the study area downstream of the 21 Foothill yellow-legged frog. 22 Silvery legless lizard, western pond turtle and coast horned lizard. Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 42 concrete-lined trapezoidal channel provides suitable aquatic and basking habitat for this species (Figure 13). The adjacent floodplain and vacant ruderal lot to the west may serve as nesting habitat, but these species are long lived and their presence does not always indicate an active breeding population. Eighteen adults were reported in 1998 at the Dow Wetland Preserve, approximately 0.5-mile to the northwest within easy access to the extensive marshlands to the north and West Antioch Creek to the east (CDFW 2013a). This locale may function as a source population, and if extant, likely augments the population within the Creek. Six red-eared sliders were observed during the March 12, 2013 site visit. Although, these species can co-occur, the red-eared slider is a non-native species that often outcompetes the native western pond turtle. Potential Project-Related Effects There is 8.71 acres of western pond turtle habitat in the study area, 6.64 acres of which could be temporarily impacted (Figure 13). The project could result in direct mortality or injury to individual western pond turtles and cause abandonment, reduced feeding success, loss of nests if breeding on site, decreased recruitment, increased risk to predation, or subject individuals to poor water quality during construction. Additional Recommended Avoidance and Minimization Measures To minimize potential impacts to western pond turtles, the following avoidance and minimization measures should be implemented: 1. A qualified biologist should conduct a preconstruction survey for western pond turtles immediately prior to work activities within the creek or floodplain downstream from the concrete-lined channel. If western pond turtles are detected within the work area, no work should occur until they move or are captured and relocated outside of the work area. The on-site biologist should determine, in consultation with CDFW, if capturing and relocating the individual(s) is necessary. If authorized by CDFW, only a biologist in possession of a valid Scientific Collecting Permit should handle or relocate the turtles. 2. Western pond turtles should be relocated to a safe location outside the work area, but should not be translocated to another location other than West Antioch Creek to prevent the spread of New Zealand mud snails. Birds Twenty sensitive or locally rare bird species23 were considered during this assessment (CDFG 2011; CDFW 2013a); three species were observed on site, and eleven were determined to have the potential to nest, roost and forage within the study area (Appendix D). All birds covered by the HCP/NCCP (tricolored blackbird, western burrowing owl, golden eagle, and Swainson’s hawk) are also considered migratory birds and subject to the prohibitions of the MBTA. Actions conducted under the HCP/NCCP must comply with the provisions of the MBTA and avoid killing or possessing covered migratory birds, their young, nests, feathers, or eggs. Because none of the covered bird species are currently listed under the ESA, none of the covered birds are eligible for a Special Purpose Permit associated with the HCP/NCCP. Should any of the covered birds become listed under the ESA during the permit term, the ESA permit would also constitute an MBTA Special Purpose Permit for that species as specified under 50 23 Cooper’s hawk, sharp-shinned hawk, tricolored blackbird, grasshopper sparrow, great blue heron, short-eared owl, burrowing owl, oak titmouse, ferruginous hawk, mountain plover, northern harrier, yellow warbler, saltmarsh common yellowthroat, yellow-breasted chat, loggerhead shrike, Suisun song sparrow, double-crested cormorant, Nuttall’s woodpecker, purple martin, and Allen’s hummingbird. Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 43 CFR Sec. 21.27 subject to renewal by the Permittee. To fulfill the requirements of the MBTA, covered activities must not result in take as defined by the MBTA of covered bird species. Conservation Measures 1.12 and 1.14 of the HCP/NCCP incorporate avoidance guidelines for compliance with the MBTA. Protection is afforded to these bird species by the Migratory Bird Treaty Act (16 U.S.C. 703-712; MBTA) administered by the U.S. Fish and Wildlife Service (Division of Migratory Bird Management), which makes it unlawful, unless expressly authorized by permit pursuant to federal regulations, to “pursue, hunt, take, capture, kill, attempt to take, capture or kill, offer for sale, sell, offer to purchase, purchase, deliver for shipment, ship, cause to be shipped, deliver for transportation, transport, cause to be transported, carry, or cause to be carried by any means whatever, receive for shipment, transportation or carriage, or export at any time, or in any manner, any migratory bird, or any part, nest, or egg of any such bird.” This includes direct and indirect acts, with the exception of harassment and habitat modification, which are not included unless they result in direct loss of birds, nests or eggs. Most bird species occurring within California fall under the protection of the MBTA, except those species that belong to the families not listed in any of the four treaties, such as wrentit (Chamaea fasciata), European starling (Sturnus vulgaris), California quail (Callipepla californica), ring-necked Pheasant (Phasianus colchicus) and chukar (Alectoris chukar), among others less common in California. In addition, the Migratory Bird Treaty Reform Act (Division E, Title I, Section 143 of the Consolidated Appropriations Act, 2005, PL 108–447; MBTRA), excludes all migratory birds nonnative or that have been human introduced to the U.S. or its territories. It defines a native migratory bird as a species present within the U.S. and its territories as a result of natural biological or ecological processes. This list excluded two additional species commonly observed in the U.S., the rock pigeon (Columba livia) and domestic goose (Anser anser ‘domesticus’). The California Fish and Game Code (CFGC) §3503 prohibits the take, possession, or needless destruction of the nest or eggs of any bird; §3503.5 prohibits the take, possession, or needless destruction of any nests, eggs or birds in the orders Falconiformes (new world vultures, hawks, eagles, ospreys and falcons, among others) or Strigiformes (owls); §3511 prohibits the take or possession of fully protected birds; and §3513 prohibits the take or possession of any migratory nongame bird or part thereof as designated in the MBTA. Burrowing owl (Athene cunicularia) Status, Distribution and Habitat Requirements The burrowing owl is designated a California Species of Special Concern by the CDFW (CDFG 2011) and is federally designated as a Bird of Conservation Concern. This species receives additional protection under the MBTA and California Fish and Game Code §3503. Burrowing owls range throughout the Central Valley, the inner and outer Coastal regions, portions of the San Francisco Bay Area, the southern California Coast, from southern California to the Mexican Border, the Imperial Valley, and in portions of the desert and high desert habitats in southeastern and northeastern California. Burrowing owls require habitat with three basic attributes: open, well drained terrain; short, sparse vegetation; and underground burrows or burrow facsimiles. Throughout their range, burrowing owls occupy grasslands, deserts, sagebrush scrub, agricultural areas (including pastures and untilled margins of cropland), earthen levees and berms, coastal uplands, urban vacant lots, and the margins of airports, golf courses, and roads (Haug et al. 1993). Burrowing owls rely on burrows excavated by fossorial mammals or reptiles, including prairie dogs, ground squirrels, badgers, skunks, armadillos, woodchucks, foxes, coyotes, and gopher tortoises (Karalus and Eckert 1987). Where the number and availability of natural burrows is limited (for example, where burrows have been destroyed or ground squirrels eradicated), owls will occupy drainage culverts, cavities under piles of rubble, discarded pipe, and other tunnel-like structures (Haug et al. 1993). Like other owls, burrowing owls breed once each year in an extended reproductive period, during which most adults mate monogamously. Both sexes reach sexual maturity at one year of age. Clutch sizes vary, and the number of eggs laid is proportionate to prey abundance. The breeding season occurs from February 1 to August 31, but peaks between late April and July in most years. Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 44 Habitat Assessment and Occurrence in the Project Vicinity Suitable nesting habitat is present within the study area in the areas designated as ruderal grassland habitat (Figure 12). California ground squirrel burrows were observed along the earthen channel south of Tenth Street and in the ruderal areas, but no burrowing owl or diagnostic sign was observed. Although no burrowing owls were observed during the site visit; owls could use the site for denning, breeding or foraging at any time of the year. Burrowing owls are widespread throughout the Antioch, Oakley and Brentwood area. In 2008, two adults were observed among six burrows along the railroad tracks near Somersville Road in an area currently under development (CDFW 2013a). This area is approximately 0.6 mile west of the study area. Potential Project-Related Effects There is 18.27 acres of suitable nesting habitat in the study area; 3.15 acres are in the project extent and 10.46 acre may be used for staging areas (Figure 12). The project could result in direct mortality or injury to breeding, resident or transient burrowing owls or cause harassment from noise or increased human activity. The project could impact this species by disrupting breeding, causing the abandonment of nests, altering foraging behaviors, temporarily displacing individuals, or causing reduced reproductive success due to stress. HCP/NCCP Conservation Measures (HCP/NCCP Chapter 6, Section 6.4.3) 1) Preconstruction Survey Prior to any ground disturbance related to covered activities, a USFWS/CDFW-approved biologist shall conduct a preconstruction survey in areas identified in the planning surveys as having potential burrowing owl habitat. The surveys will establish the presence or absence of western burrowing owl and/or habitat features and evaluate use by owls in accordance with CDFW survey guidelines (CDFG 2012). On the parcel where the activity is proposed, the biologist shall survey the proposed disturbance footprint and a 500-foot radius from the perimeter of the proposed footprint to identify burrows and owls. Adjacent parcels under different land ownership will not be surveyed. Surveys should take place near sunrise or sunset in accordance with CDFW guidelines. All burrows or burrowing owls will be identified and mapped. Surveys will take place no more than 30 days prior to construction. During the breeding season (February 1 – August 31), surveys will document whether burrowing owls are nesting in or directly adjacent to disturbance areas. During the nonbreeding season (September 1 – January 31), surveys will document whether burrowing owls are using habitat in or directly adjacent to any disturbance area. Survey results will be valid only for the season (breeding or nonbreeding) during which the survey is conducted. 2) Avoidance and Minimization Measures and Construction Monitoring If burrowing owls are found during the breeding season (February 1 – August 31), the project proponent will avoid all nest sites that could be disturbed by project construction during the remainder of the breeding season or while the nest is occupied by adults or young. Avoidance will include establishment of a non-disturbance buffer zone (described below). Construction may occur during the breeding season if a qualified biologist monitors the nest and determines that the birds have not begun egg-laying and incubation or that the juveniles from the occupied burrows have fledged. During the nonbreeding season (September 1 – January 31), the project proponent should avoid the owls and the burrows they are using, if possible. Avoidance will include the establishment of a buffer zone (described below). If occupied burrows for burrowing owls are not avoided, passive relocation will be implemented. Owls should be excluded from burrows in the immediate impact zone and within a 160-foot buffer Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 45 zone by installing one-way doors in burrow entrances. These doors should be in place for 48 hours prior to excavation. The project area should be monitored daily for 1 week to confirm that the owl has abandoned the burrow. Whenever possible, burrows should be excavated using hand tools and refilled to prevent reoccupation (CDFG 2012). Plastic tubing or a similar structure should be inserted in the tunnels during excavation to maintain an escape route for any owls inside the burrow. Recommended Avoidance and Minimization Efforts To minimize potential impacts to burrowing owls, the following avoidance and minimization measures should be implemented: 1. Within the same calendar year the project is scheduled to begin, focused surveys for burrowing owls should be conducted prior to the burrowing owl breeding season, which occurs from February 1 through August 31. Surveys should be conducted in accordance with the 2012 CDFW survey guidelines (CDFG 2012). If no burrowing owls are observed, ground squirrel burrows should be collapsed within the project footprint to discourage burrowing owls from moving onto the project site. Ground squirrel control and burrow abatement should continue throughout the active construction period. If burrowing owls are observed within the project footprint or 500 feet (150 meters) from the project footprint, burrowing owl exclusion and closure should be conducted in accordance with the 2012 CDFW survey guidelines (CDFG 2012) and in coordination with CDFW. 2. If burrowing owls are found during the breeding season (February 1 – August 31), disturbance to occupied burrows should be avoided until the end of the nesting season. If disturbance cannot be avoided non-disturbance buffers should be established in coordination with CDFW. CDFW should be contacted to determine if passive relocation should be implemented. Cooper’s Hawk (Accipiter cooperii) Status, Distribution and Habitat Requirements The Cooper’s hawk (nesting) is included on the CDFW Watchlist (CDFG 2011). Their range extends across the contiguous United States extending into southern Canada and Mexico, and they are distributed throughout most of California (Curtis et al. 2006). Cooper’s hawks inhabit dense stands of oak woodlands, riparian deciduous forests, or other forest habitats often near water and suburban areas (Baicich & Harrison 2005). This woodland raptor hunts in broken woodlands, along forest edges and suburban areas for medium-sized birds and mammals (Curtis et al. 2006). Typical nest site selection is characterized by mature trees with significant canopy cover, although species will nest in suburban areas in a variety of trees (Curtis et al. 2006). Their breeding begins in April and they are single-brooded (Baicich & Harrison 2005). Habitat Suitability and Occurrence Data Suitable nesting habitat is present among mature trees throughout the study area. A juvenile Cooper’s hawk was observed roosting in a willow tree within the study area during the April 23, 2009 site visit; however, no adults or nests were observed. It is unlikely that this individual nested in the study area based on the lack of nest structures nearby. Suitable foraging habitat is present within the study area. Several bird species that are potential prey for this species were observed in the study area, including red-winged blackbird (Agelaius phoeniceus), Brewer’s blackbird (Euphagus cyanocephalus), goldfinch (Carduelis spp.), cedar waxwing (Bombycilla cedrorum), rock pigeon, mourning dove (Zenaida macroura), belted kingfisher (Ceryle alcyon) and house finch (Carpodacus mexicanus). Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 46 Potential Project-Related Effects If nesting within the study area, the project could result in short-term impacts such as failure to breed, nest abandonment, reduced fecundity and decreased survivorship. Such disturbance may alter the bird’s behavior in ways that result in injury, mortality, or reduced foraging success; the temporary loss of habitat due to avoidance of areas that have suitable habitat but intolerable levels of disturbance; and altered activity patterns. Recommended Avoidance and Minimization Efforts To minimize potential impacts to Cooper’s hawks, the avoidance and minimization measures outlined for the white-tailed kite should be implemented. Loggerhead Shrike (Lanius ludovicianus) Status, Distribution and Habitat Requirements The loggerhead shrike (nesting) is designated as a Species of Special Concern and is included on the Birds of Conservation Concern watchlist (CDFG 2011). This species inhabits a variety of habitats from open grasslands and scrub to woodlands and riparian areas (Yosef 1996, Baicich & Harrison 2005). Loggerhead shrikes are a year-round resident throughout much of California; however, population declines have been observed in the San Francisco Bay Area in areas where oak savannah habitat has been lost (Shuford and Gardali 2008). Trees, shrubs, and fence posts are important habitat features, which serve as hunting perches and an announcement site for territory pair maintenance (Shuford and Gardali 2008). Breeding begins in February and the species is double- to triple-brooded (Baicich & Harrison 2005). Habitat Suitability and Occurrence Data Suitable nesting habitat is present in shrubs and small trees throughout the study area. The Contra Costa County Breeding Bird Atlas (2002) identifies the loggerhead shrike as a confirmed nester in the northern, eastern, central and southern regions of the county. The nearest nesting occurrence (EONDX #51565) was reported 7 miles to the east in Oakley in 2003 (CDFW 2013a). Potential Project-Related Effects If shrike are nesting within the study area, the project could result in short-term impacts such as failure to breed, nest abandonment, reduced fecundity and decreased survivorship. Such disturbance may alter the bird’s behavior in ways that result in injury, mortality, or reduced foraging success; the temporary loss of habitat due to avoidance of areas that have suitable habitat but intolerable levels of disturbance; and altered activity patterns. Recommended Avoidance and Minimization Efforts To minimize potential impacts to loggerhead shrikes, the avoidance and minimization measures outlined for the white-tailed kite should be implemented; however, the survey buffer should extend 50 beyond the project footprint in lieu of the 300 for birds of prey. Northern Harrier (Circus cyaneus) Status, Distribution and Habitat Requirements The northern harrier is designated as a California Species of Special Concern by CDFW (CDFG 2011). The harrier is a medium-sized raptor with long wings and tail and a distinctive white rump patch. The northern harrier is distributed throughout North America, breeding in the northern lands of Alaska, Canada and northern continental United States (Macwhirter and Bildstein 1996). This species migrates long distances and winters in the southern states, Mexico and Central America, and is a year-round resident of coastal California and the Central Valley (Macwhirter and Bildstein 1996). Northern harriers inhabit both freshwater and saltwater marshes and adjacent upland grasslands, and nest on the ground in Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 47 tall grasses or clumps of tall vegetation in grasslands and meadows (Macwhirter and Bildstein 1996). This species breeds from Late March through September; it is single-brooded (Baicich & Harrison 2005). Northern harriers forage on the wing in low flight in marshes, prairies, heavily grazed grasslands, and harvested fields primarily for voles (Microtus spp.), but also feed opportunistically on other small mammals, reptiles, amphibians and small birds (Macwhirter and Bildstein 1996). Habitat Suitability and Occurrence Data Suitable nesting habitat is present in permanent wetland south of 4th Street. Suitable foraging habitat is present throughout the study area. The Contra Costa County Breeding Bird Atlas identifies the northern harrier as a confirmed breeder in the northern and eastern regions of the county (2002). Several northern harriers were observed foraging over the Dow Wetland Preserve during the field March 12, 2013 survey. Potential Project-Related Effects Removal of cattails and other emergent vegetation north of 4th Street would result in the loss of potential nesting and foraging habitat. If nesting within the study area, the project could result in short-term impacts such as failure to breed, nest abandonment, reduced fecundity and decreased survivorship. Such disturbance may alter the bird’s behavior in ways that result in injury, mortality, or reduced foraging success; the temporary loss of habitat due to avoidance of areas that have suitable habitat but intolerable levels of disturbance; and altered activity patterns. Recommended Avoidance and Minimization Efforts To minimize potential impacts to northern harriers, the avoidance and minimization measures outlined for the white-tailed kite should be implemented. Nuttall’s woodpecker (Picoides nuttallii) Status, Distribution and Habitat Requirements The Nuttall’s woodpecker (nesting) is included on the American Bird Conservancy watchlist (CDFG 2011). The primary habitat for Nuttall’s woodpecker includes riparian woodlands and oak woodlands in canyons and shaded areas, characterized especially by coast live (Quercus agrifolia) and valley (Quercus lobata) oaks, oftentimes mixed with willows and western sycamore (Platanus racemosa) (Lowther 2000). The species forages along bark of trees for insects and will feed on acorns (Lowther 2000). The Nuttall’s woodpecker is a cavity nester, building its nests in soft woods such as oaks, willows, cottonwoods, maple, alders, elderberry, snags, and on some occasions fence posts (Lowther 2000). Breeding begins in March and it is single-brooded (Baicich & Harrison 2005). Habitat Suitability and Occurrence Data Suitable nesting habitat is present among mature trees within the study area. The Contra Costa County Breeding Bird Atlas identifies the Nuttall’s woodpecker as a confirmed breeder throughout the county (CCCBBA 2002). No Nuttall’s woodpeckers were observed during the field surveys. Potential Project-Related Effects The project may result in the loss of potential nesting and foraging habitat if the removal of mature trees is required. If nesting within the study area, the project could result in short-term impacts such as failure to breed, nest abandonment, lower numbers of eggs, and decreased survivorship. Such disturbance may alter the bird’s behavior in ways that result in injury, mortality, or reduced foraging success; the temporary loss of habitat due to avoidance of areas that have suitable habitat but intolerable levels of disturbance; and altered activity patterns. Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 48 Recommended Avoidance and Minimization Efforts To minimize potential impacts to Nuttall’s woodpeckers, the avoidance and minimization measures outlined for the white-tailed kite should be implemented; however, the survey buffer should extend 50 feet beyond the project footprint in lieu of the 300 feet for birds of prey. Oak titmouse (Baeolophus inornatus) Status, Distribution and Habitat Requirements The oak titmouse (nesting) is included on the American Bird Conservancy watchlist (CDFG 2011). Primarily an oak obligate species, the oak titmouse inhabits oak woodlands, oak savannahs, piñyon and juniper woodlands and occasionally suburban areas with oaks (Cicero 2000, Baicich & Harrison 2005). This species is a year-round resident throughout much of California in oak woodlands and oak savannah communities. Nests are situated in natural or excavated cavities in trunks, primary and secondary branches, and stumps (Cicero 2000). Breeding begins in March and the species is single-brooded (Baicich & Harrison 2005). Habitat Suitability and Occurrence Data Suitable nesting habitat is present among mature trees within the study area. The Contra Costa County Breeding Bird Atlas identifies the oak titmouse as a confirmed breeder throughout the county (CCCBBA 2002, CDFW 2013a). No oak titmice were observed during the field surveys. Potential Project-Related Effects The project may result in the loss of potential nesting and foraging habitat if the removal of mature trees is required. If nesting within the study area, the project could result in short-term impacts such as failure to breed, nest abandonment, lower numbers of eggs, and decreased survivorship. Such disturbance may alter the bird’s behavior in ways that result in injury, mortality, or reduced foraging success; the temporary loss of habitat due to avoidance of areas that have suitable habitat but intolerable levels of disturbance; and altered activity patterns. Recommended Avoidance and Minimization Efforts To minimize potential impacts to the oak titmouse, the avoidance and minimization measures outlined for the white-tailed kite should be implemented; however, the survey buffer should extend 50 feet beyond the project footprint in lieu of the 300 feet for birds of prey. Saltmarsh Common Yellowthroat (Geothlypis trichas sinuosa) Status, Distribution and Habitat Requirements The saltmarsh common yellowthroat is designated as a California Species of Special Concern and is included on the Birds of Conservation Concern watchlist (CDFG 2011). A year-round resident of the San Francisco Bay Area, the species inhabits dense vegetation in wetlands, marshes, estuaries, prairies and riparian areas of San Francisco and San Pablo bays, and along the coastal areas of Marin, San Francisco, and San Mateo counties (Shuford and Gardali 2008). The species forages on insects and spiders on the ground or within dense vegetation (Guzy and Ritchison 1999). Nests are built near the base of dense vegetation, sometimes over water (Baicich & Harrison 2005). Saltmarsh common yellowthroat breeds from mid-March to late July; it is double-brooded (Baicich & Harrison 2005, Shuford and Gardali 2008). Habitat Suitability and Occurrence Data Suitable nesting habitat is present within the permanent wetland in the study area. The Contra Costa County Breeding Bird Atlas identifies the saltmarsh common yellowthroat as a confirmed breeder along the shoreline in northern Contra Costa County (CCCBBA 2002). No saltmarsh common yellowthroats were observed during the field surveys. Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 49 Potential Project-Related Effects Removal of cattails and other emergent vegetation north of 4th Street would result in the loss of potential nesting and foraging habitat. If nesting within the study area, the project could result in short-term impacts such as failure to breed, nest abandonment, reduced fecundity and decreased survivorship. Such disturbance may alter the bird’s behavior in ways that result in injury, mortality, or reduced foraging success; the temporary loss of habitat due to avoidance of areas that have suitable habitat but intolerable levels of disturbance; and altered activity patterns. Recommended Avoidance and Minimization Efforts To minimize potential impacts to the saltmarsh common yellowthroat, the avoidance and minimization measures outlined for the white-tailed kite should be implemented; however, the survey buffer should extend 50 beyond the project footprint in lieu of the 300 for birds of prey. Short-Eared Owl (Asio flammeus) Status, Distribution and Habitat Requirements The short-eared owl is designated as a California Species of Special Concern by CDFW and as a migratory nongame bird of management concern by the USFWS (CDFG 2011). The short-eared owl historically bred throughout California, west of the deserts (Grinnell and Miller 1944). This species has declined dramatically throughout the state. It is more numerous in winter, concentrating in areas with little snow cover and abundant prey, but even winter numbers have declined (Remsen 1978). Breeding populations have been extirpated from the southern coast and from the San Joaquin Valley (Remsen 1978). The species still breeds in the southern portion of the Sacramento Valley (Yolo and Solano Counties), the Sacramento-San Joaquin Delta, Suisun Marsh, northeastern portions of the state, in the Coast Ranges from Sonoma to Santa Barbara Counties, and in the Owens Valley (Small 1994, Zeiner et al. 1990). The short-eared owl is generally a migratory species, although it is resident in portions of California (Zeiner et al. 1990). Short-eared owls are more numerous in winter, with migrating birds arriving in September and October and leaving in April (Zeiner et al. 1990). Nests are built on the ground in tall stands of grasses in lowland habitats near hunting grounds in marshes, meadows, and even agricultural fields (Grinnell and Miller 1944). The breeding season is from late March to July (Zeiner et al. 1990). The primary cause of decline in short-eared owl populations is the loss of breeding and foraging habitat. In some areas with suitable habitat intact, grazing and hunting have also led to further declines (Remsen 1978). Habitat Suitability and Occurrence Data Suitable nesting habitat is present in permanent wetland south of 4th Street. Suitable foraging habitat is present throughout the study area. The Contra Costa County Breeding Bird Atlas reports the short-eared owl as a possible breeder from one location along the Carquinez shoreline in northern Contra Costa County (2002). No short-eared owls were observed during the field surveys. Potential Project-Related Effects Removal of cattails and other emergent vegetation north of 4th Street would result in the loss of potential nesting and foraging habitat. If nesting within the study area, the project could result in short-term impacts such as failure to breed, nest abandonment, reduced fecundity and decreased survivorship. Such disturbance may alter the bird’s behavior in ways that result in injury, mortality, or reduced foraging success; the temporary loss of habitat due to avoidance of areas that have suitable habitat but intolerable levels of disturbance; and altered activity patterns. Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 50 Recommended Avoidance and Minimization Efforts To minimize potential impacts to short-eared owls, the avoidance and minimization measures outlined for the white-tailed kite should be implemented. Suisun Song Sparrow (Melospiza melodia maxillaris) Status, Distribution, and Habitat Requirements The Suisun song sparrow is designated as a California Species of Special Concern by CDFW and included on the USFWS’ Birds of Conservation Concern (CDFG 2011). They are one of four subspecies endemic to the Bay Area. It is a year-round resident of tidal salt and brackish marshes of Suisun Bay, Carquinez Strait and the Sacramento-San Joaquin Delta west of Kimball Island (Shuford and Gardali 2008). The Suisun song sparrow primarily inhabits tidal channels with dense, short vegetation such as California cord grass (Spartina foliosa), pickleweed (Salicornia virginica), gumplant (Grindelia stricta), rushes (Juncus spp.), and rarely in taller vegetation such as tules (Scirpus spp.) and cattails (Typha spp.) (Shuford and Gardali 2008). Their diet consists mostly of grains with some invertebrates; therefore, exposed ground is a habitat requirement (Shuford and Gardali 2008). Breeding begins in April and the species is often treble-brooded (Baicich & Harrison 2005). The species prefers to nest in dense vegetation, which also provides cover from predators (Shuford and Gardali 2008). Habitat Suitability and Occurrence Data Suitable nesting habitat is present within the permanent wetland in the study area. The Contra Costa County Breeding Bird Atlas identifies the song sparrow as a confirmed breeder along the shoreline in northern Contra Costa County (CCCBBA 2002). Several song sparrows were observed during the March 12, 2013 site visit within the permanent wetland and are presumed to be the M.m. maxillaris based on the location of the observation and the subspecies distribution. Potential Project-Related Effects Removal of cattails and other emergent vegetation north of 4th Street would result in the loss of potential nesting and foraging habitat. If nesting within the study area, the project could result in short-term impacts such as failure to breed, nest abandonment, lower numbers of eggs, and decreased survivorship. Such disturbance may alter the bird’s behavior in ways that result in injury, mortality, or reduced foraging success; the temporary loss of habitat due to avoidance of areas that have suitable habitat but intolerable levels of disturbance; and altered activity patterns. Recommended Avoidance and Minimization Efforts To minimize potential impacts to the Suisun song sparrow, the avoidance and minimization measures outlined for the white-tailed kite should be implemented; however, the survey buffer should extend 50 feet beyond the project footprint in lieu of the 300 feet for birds of prey. Tricolored Blackbird (Agelaius tricolor) Status, Distribution and Habitat Requirements The tricolored blackbird is designated a California Species of Special Concern by CDFW and is included on the American Bird Conservancy Green List and U.S. Fish and Wildlife Service Bird Conservation Concern list (CDFG 2011). They primarily inhabit freshwater marshes dominated by cattails (Typha spp.) and bulrushes (Schoenoplectus spp.) in the Central Valley and the surrounding foothills with outlying populations in Oregon, Washington, and Southern California (Beedy and Hamilton 1999). More recently, tricolored blackbirds have been observed breeding in a wider diversity of habitats including agricultural and upland communities in close proximity to water and abundant food sources (Beedy and Hamilton 1999). Tricolored blackbirds are largely endemic to California, highly colonial and have been reported to breed in groups exceeding 100,000 nests (Shuford and Gardali 2008). This species exhibits low site fidelity and are known to change their nesting location from year to year (Beedy and Hamilton 1999). Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 51 Tricolored blackbird nests are created in emergent vegetation within aquatic and riparian habitats. Breeding occurs from late March to early August and may be double-brooded (Baicich and Harrison 2005). Habitat Suitability and Occurrence Data Suitable nesting habitat is present within the permanent wetland among the dense stands of tule/bulrush within the study area (Figure 12). The Contra Costa County Breeding Bird Atlas identifies the tricolored blackbird as a breeder in southern Contra Costa County; no breeding records in northern Contra Costa County (CCCBBA 2002, CDFW 2013a). No tricolored blackbirds were observed during the field surveys. The nearest reported nesting occurrence (EONDX 11811) is located approximately 10 miles to the southeast at Marsh Creek Reservoir dating back to 1989 (CDFW 2013a). Potential Project-Related Effects There is 4.93 acre of potential nesting and foraging habitat in the study area (Figure 12). Removal of cattails and other emergent vegetation north of 4th Street would result in the loss of 3.01 acre of potential nesting and foraging habitat. If nesting within the study area, the project could result in short-term impacts such as failure to breed, nest abandonment, reduced fecundity, and decreased survivorship. Such disturbance may alter the bird’s behavior in ways that result in injury, mortality, or reduced foraging success; the temporary loss of habitat due to avoidance of areas that have suitable habitat but intolerable levels of disturbance; and altered activity patterns. Recommended Avoidance and Minimization Efforts To minimize potential impacts to the tricolored blackbird, the avoidance and minimization measures outlined for the white-tailed kite should be implemented; however, the survey buffer should extend 50 feet beyond the project footprint in lieu of the 300 feet for birds of prey. HCP/NCCP Conservation Measures (HCP/NCCP Chapter 6, Section 6.4.3) Covered activities with the potential to take tricolored blackbird nests will be avoided during the nesting season (April 1 to July 1). Recommended Avoidance and Minimization Efforts To minimize potential impacts to the tricolored blackbird, the avoidance and minimization measures outlined for the white-tailed kite should be implemented; however, the survey buffer should extend 50 feet beyond the project footprint in lieu of the 300 feet for birds of prey. Yellow-Breasted Chat (Icteria virens) Status, Distribution and Habitat Requirements The yellow-breasted chat (nesting) is designated as a Species of Special Concern (CDFG 2011). Yellow- breasted chat is a widespread summer resident of the eastern U.S. and has a fragmented distribution in the west. Its western North America range includes the Cascade range, central Oregon valleys, southern Idaho and northern Nevada, portions of California, Utah, western Colorado, and central Arizona. In California, its range is primarily in northern California, and this species is scarce in central and southern California (Eckerle and Thompson 2001). The yellow-breasted chat is a large, secretive wood warbler that inhabits early successional riparian area, pond margins, marshes, hedgerows, old pastures and edge habitats with dense shrub understories and an open canopy (Shuford and Gardali 2008). It occurs in forests especially regenerating burned and logged areas (Eckerle and Thompson 2001, Baicich & Harrison 2005). The species nests in dense shrubs up to eight feet in height and breeds from late April through early August; it is double-brooded (Baicich & Harrison 2005, Shuford and Gardali 2008). The species appears to be closely tied to streamside thickets of willows, mesquite, mulefat with tangles of grapevines and other riparian species. During migration, Section 4 Assessment and Findings West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 52 yellow-breasted chat uses habitat similar to its breeding habitat (Dunn and Garrett 1997). Major threats to yellow-breasted chat are loss of lowland riparian habitat and nest parasitism by brown-headed cowbirds (Garrett and Dunn 1981; Roberson and Tenney 1993; Gallagher 1997). Habitat Suitability and Occurrence Data Suitable nesting habitat is present within the permanent wetland in the study area. The Contra Costa County Breeding Bird Atlas identifies the yellow-breasted chat as a confirmed breeder along the shoreline in northeastern Contra Costa County (CCCBBA 2002). No yellow-breasted chats were observed during the field surveys. Potential Project-Related Effects Removal of cattails and other emergent vegetation north of 4th Street would result in the loss of potential nesting and foraging habitat. If nesting within the study area, the project could result in short-term impacts such as failure to breed, nest abandonment, reduced fecundity and decreased survivorship. Such disturbance may alter the bird’s behavior in ways that result in injury, mortality, or reduced foraging success; the temporary loss of habitat due to avoidance of areas that have suitable habitat but intolerable levels of disturbance; and altered activity patterns. Recommended Avoidance and Minimization Efforts To minimize potential impacts to the yellow-breasted chat, the avoidance and minimization measures outlined for the white-tailed kite should be implemented; however, the survey buffer should extend 50 feet beyond the project footprint in lieu of the 300 feet for birds of prey. Mammals Ten sensitive or locally rare mammal species24 were considered during the preparation of this assessment (CDFG 2011; CDFW 2013a); none of which were determined to have the potential to occur within the study area (Appendix D). Planning surveys were conducted for the Townsend’s western big-eared bat and ringtail; however, no suitable breeding or roosting habitat was identified within the study area. 24 Pallid bat, ringtail, Townsend’s western big-eared bat, Berkeley kangaroo rat, western red bat, hoary bat, Yuma myotis bat, San Joaquin pocket mouse, Suisun shrew and American badger. Section 5 Conclusions, Avoidance and Minimization Measures West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 53 Section 5. CONCLUSIONS, AVOIDANCE AND MINIMIZATION MEASURES 5.1. CONCLUSIONS 5.1.1 CRITICAL HABITAT The project is located within delta smelt critical habitat and supports all four PCE’s: 1) spawning habitat; 2) larval and juvenile transport; 3) rearing habitat; and 4) adult migration. The project would result in the temporary loss of submergent and emergent vegetation upon which delta smelt may depend for egg attachment and refugia by removal to increase the flood capacity or by sedimentation during desilting activities. All four PCE’s may also be temporarily impacted by disilting activities, which would increase turbidity, decrease water quality and cause increased sedimentation of breeding and rearing habitat. 5.1.2 SENSITIVE NATURAL COMMUNITIES A total of six sensitive communities were observed in the project area: alkali grassland, seasonal wetland, alkali wetland, permanent wetland, riparian woodland/scrub, and stream. Seasonal wetland, alkali wetland, permanent wetland, riparian woodland/scrub, and stream are considered sensitive natural communities as they may qualify as waters of the U.S. and/or Waters of the State falling under U.S. Army Corps of Engineers and Regional Water Quality Control Board jurisdictions through the Clean Water Act and the Porter Cologne Water Quality Act. A wetland delineation has been completed for the study area but has not been submitted to the U.S. Army Corps of Engineers for verification. Alkali grassland is listed as an uncommon vegetation alliance in the HCP/NCCP. Within the study area, alkali grassland and wetland were mapped in the northern portion of the study area, just south of the railroad tracks. Seasonal wetlands were present on the margins and floodplain of the West Antioch Creek low flow channel, and extended from the vacant car dealership downstream to West 4th Street. Species present at the upstream end were typical of freshwater seasonal wetlands and became more brackish in nature heading downstream. Permanent wetland is located adjacent to the low flow channel of West Antioch Creek downstream of West 4th Street to the margin of the San Joaquin River. Riparian woodland/scrub is present in the channel, along a tributary ditch, and north of the railroad tracks. The low flow channel of West Antioch Creek was mapped as stream land cover type. 5.1.3 SPECIAL-STATUS PLANTS HCP/NCCP Covered and No-Take Plant Species Based on the field investigations, review of available databases and literature, familiarity with local flora, on-site habitat suitability, and results of 2013 rare plant surveys, none of the 17 covered and no-take species listed in the HCP/NCCP are considered to have the potential to occur on site. Federal and/or State Listed and California Rare Plant Species Based on the field investigations, review of available databases and literature, familiarity with local flora, on-site habitat suitability, and results of 2013 rare plant surveys, none of the 11 federal and/or state-listed plant species known from the vicinity are considered to have the potential to occur within the study area. California Native Plant Society Listed and/or Locally Rare Plant Species Based on the field investigations, review of available databases and literature, familiarity with local flora, on-site habitat suitability, and results of 2013 rare plant surveys, none of the 60 California Native Plant Section 5 Conclusions, Avoidance and Minimization Measures West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 54 Society listed plant species known from the vicinity are considered to have the potential to occur within the study area. If these species are present on site, the Project could result in mortality of individuals, loss of subpopulations, or the removal or reduction of their seed bank. However, if avoidance is not feasible, the implementation of mitigation measures described in Section 5.3.1 may reduce impacts to a less than significant level. 5.1.4 SPECIAL-STATUS WILDLIFE HCP/NCCP Covered and No-Take Wildlife Species Based on the field investigations, review of available databases and literature, familiarity with local fauna, and on-site habitat suitability, five of the 21 covered and no-take species listed in the HCP/NCCP are considered to have the potential to occur on site. These include the California red-legged frog, western pond turtle, white-tailed kite, western burrowing owl and tricolored blackbird. Federal/State Listed, Proposed, Candidate, or Fully Protected Fish and Wildlife Species Four federally/state-listed, proposed, Candidate or fully protected fish or wildlife species were determined to have the potential to occur within the study area based on habitat suitability and connectivity and occurrence data. These include the delta smelt, California red-legged frog, California black rail and white- tailed kite. If present during construction activities, the project could result in direct mortality, injury, harassment, or nest abandonment, and would result in the loss of nesting, breeding, feeding and sheltering habitat. Additional impacts may include increase turbidity, decrease water quality reduced food sources associated with the aquatic plants and macroinvertebrates, and the loss of potential spawning and rearing habitat due to sedimentation. Sensitive and Locally Rare Wildlife Species A total of 13 sensitive or locally rare fish and wildlife species were considered to have the potential to occur within the study area including Bridge’s coast range shoulderband snail, Sacramento splittail, western pond turtle, burrowing owl, Cooper’s hawk, loggerhead shrike, oak titmouse, northern harrier, Nuttall’s woodpecker, saltmarsh common yellowthroat, short-eared owl, Suisun song sparrow and yellow-breasted chat. Three of these species, i.e. western pond turtle, Cooper’s hawk and Suisun song sparrow were observed during the April 23, 2009, and March 12, 2013 site visits. If present on site during construction activities, the project could result in direct mortality, injury, harassment, or nest abandonment, and could indirectly impact species by temporarily removing or altering breeding, foraging, and wintering habitat. 5.2. SURVEY RECOMMENDATIONS 5.2.1 WETLAND RESOURCES A Wetland Delineation and Preliminary Jurisdictional Determination report has been completed for the project (Nomad 2013a). 5.2.2 SPECIAL-STATUS PLANTS Surveys performed for this project have met survey requirements for CEQA related sensitive botanical resources. Additional surveys for sensitive natural communities or special-status plant species are neither warranted nor recommended. Results of the rare plant surveys are detailed in the Botanical Resource Survey Report for the project (Nomad 2013b). Section 5 Conclusions, Avoidance and Minimization Measures West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 55 5.3. AVOIDANCE AND MINIMIZATION MEASURES 5.3.1 SENSITIVE NATURAL COMMUNITIES Sensitive natural communities should be avoided to the extent possible. Specifically, alkali wetland and alkali grassland in the study area should be fenced to prevent access during construction and to avoid impacts. 5.3.2 SPECIAL-STATUS PLANTS Surveys should be conducted in June, July, August and September to determine if special-status plant species are present on site. If any special-status plant species are present on site, impacts should be avoided to the maximum extent possible and should be the primary objective. If avoidance is not feasible, minimization measures will be developed for the special-status plant species with the potential to be impacted. 5.3.3 SPECIAL-STATUS WILDLIFE The avoidance and minimization measures outlined in Section 4.3 should be implemented to reduce impacts to listed and special-status species and their habitats. In addition, Conservation Measures outlined in the HCP/NCCP in Sections 5.3.1 and 6.4.1should be implemented to promote landscape, community and species level conservation, management, enhancement and restoration of vegetation and species habitat. Particular emphasis should be placed on the following Conservation Measures:  Conservation Measure 1.7. Establish Stream Setbacks  Conservation Measure 1.10. Maintain Hydrologic Conditions and Minimize Erosion  Conservation Measure 1.11. Avoid Direct Impacts on Extremely Rare Plants, Fully Protected Wildlife Species, or Covered Migratory Birds  Conservation Measure 1.13. Best Management Practices for Flood Control Facility Maintenance  Conservation Measure 2.12. Wetland, Pond, and Stream Avoidance and Minimization 5.3.4 GENERAL AVOIDANCE AND MINIMIZATION RECOMMENDATIONS 1. Prior to the start of construction, a qualified biologist will conduct an educational training program for all construction personnel including contractors and subcontractors. The training will include, at a minimum, a description of the species that could be encountered in the project area, and migratory birds; and the associated habitats of these species; an explanation of the status of these species and protection under state and federal laws; the avoidance and minimization measures to be implemented to reduce impacts to these species; communication and work stoppage procedures in case a listed or special-status species is observed within the project area; and an explanation of the environmental regulatory laws and permit conditions. A fact sheet conveying this information should be prepared and distributed to all construction personnel. Upon completion of the program, personnel should sign a form stating that they attended the program and understand all the avoidance and minimization measures and permit conditions. 2. All slopes or unpaved areas affected by the proposed action should be restored to natural conditions. Slopes and bare ground should be reseeded with native grasses and shrubs characteristic of the floristic region and native local habitats to stabilize soils and prevent erosion. Where disturbance includes the removal of trees or plants, native species should be replanted and maintained until they become established. Section 5 Conclusions, Avoidance and Minimization Measures West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 56 3. Only sandbags filled with clean gravel or sand, i.e. gravel or sand free of dirt, silt or other debris that would adversely affect water quality if released into the stream, should be used for construction of the cofferdams. The dewatering pumps should be screened with 1/4-inch mesh screen material during all dewatering in accordance with NMFS Fish Screening Criteria (1997) for fingerling-sized fish unless otherwise directed by NMFS. 4. Storm Water Pollution Prevention Plans (SWPPP) and erosion control BMPs should be developed and implemented to minimize any wind or water-related erosion and should be in compliance with the requirements of the Regional Water Quality Control Board. The SWPPP should provide guidance for design staff to include provisions in construction contracts for measures to protect sensitive areas and prevent and minimize storm water and non-storm water discharges. Protective measures should include, at a minimum: a. No discharge of pollutants from vehicle and equipment cleaning is allowed into any storm drains or water courses. b. Vehicle and equipment fueling and maintenance operations must be at least 50 feet away from watercourses, except at established commercial gas stations or established vehicle maintenance facility. c. Concrete wastes are collected in washouts and water from curing operations is collected and disposed. Neither should be allowed into watercourses. d. Spill containment kits should be maintained on site at all times during construction operations and/or staging or fueling of equipment. e. Coir rolls or straw wattles that do not contain plastic or synthetic mono-filament netting should be installed along or at the base of slopes during construction to capture sediment. f. Protect graded areas from erosion using a combination of silt fences, fiber rolls, or other suitable materials along toes of slopes or along edges of designated staging areas, and erosion control netting (such as jute or coir) as appropriate on sloped areas. No erosion control materials that use plastic or synthetic mono-filament netting should be used. 5. Staging areas should be located outside areas containing sensitive aquatic resources. 6. All food and food-related trash items will be enclosed in sealed trash containers and properly disposed of off-site. 7. No pets from project personnel will be allowed anywhere in the action area during construction. Section 6 References West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 57 Section 6. REFERENCES Abrams, L. 1955. Illustrated Flora of the Pacific States: Washington, Oregon, and California. Four volumes. American Ornithologists Union (AOU). 1998. Checklist of North American Birds. Seventh ed. pp. 829. American Society of Mammalogists (ASM). 2006. Mammals of California. Austin C.C. and H.B. Shaffer. 1992. Short-, medium- and long-term repeatability of locomotor performance in the tiger salamander Ambystoma californiense. Functional Ecology 6(2): 145-153. Baicich, P.J. and C.J.O. Harrison. 2005. Nests, Eggs, and Nestlings of North American Birds. Second Edition. Princeton University Press. Princeton, New Jersey. 347 pp. Baldwin, B. G., D. H. Goldman, D. J. Keil, R. Patterson, T. J. Rosatti, and D. H. Wilken, editors. 2012. The Jepson manual: vascular plants of California, second edition. University of California Press, Berkeley. Bash, J.S. 1999. The Role of Wood in the Life Cycle of Western Pond Turtles (Clemmys marmorata). An unpublished report to ELWd Systems, a division of Forest Concepts LLC. 14pp. Beedy, Edward C. and William J. Hamilton, Iii. 1999. Tricolored Blackbird (Agelaius tricolor), The Birds of North America Online (A. Poole, Ed.). Ithaca: Cornell Lab of Ornithology; Retrieved from the Birds of North America Online: http://bna.birds.cornell.edu/bna/species/423. Beier, P. and S. Loe. 1992. A Checklist for Evaluating Impacts to Wildlife Movement Corridors. Wildlife Society Bulletin 20(4):434-440. Beier, P. and R.F. Noss. 1998. Do Habitat Corridors Provide Connectivity? Conservation Biology 12(6):1241-1252. December. Bildstein, Keith L. and Ken Meyer. 2000. Sharp-Shinned Hawk (Accipiter striatus), The Birds of North America Online (A. Poole, Ed.). Ithaca: Cornell Lab of Ornithology; Retrieved from the Birds of North America Online: http://bna.birds.cornell.edu/bna/species/482. Bolster, B.C. 2005. Western Red Bat (Lasiurus blossevillii). Species Account. Western Bat Working Group. http://wbwg.org/species_accounts.htm#LABL. Bulger, J.B., N.J. Scott Jr. and R. Seymour. 2003. Terrestrial Activity and Conservation of Adult California Red-Legged Frogs Rana aurora draytonii in Coastal Forests and Grasslands. Biological Conservation. Vol. 110: pp. 85-95. The Calflora Database. 2013. Information on Wild California Plants for Conservation, Education, and Appreciation. http://www.calflora.org/. California Department of Fish and Game. 2008. 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Appendix A Figures West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 65 APPENDIX A FIGURES Somersville Rd.West 10th St. West 4th St. Barbara Prince Marina Park L St.West 10th St. Contra Costa County Fairgrounds San Joaquin River Legend Study Area 2010 Proposed Project Boundaries Sources: California Spatial Information Libray, ESRI Contra Costa County, California September 2013 West Antioch Creek Channel Improvements City of Antioch Project Vicinity Figure 1 Antioch Brentwood Tracy Concord Danville Dublin Oakland Fremont Vallejo San Jose Livermore Fairfield San Mateo Pittsburg Walnut Creek Alameda Solano Contra Costa San Joaquin Santa ClaraSan Mateo Napa Sacramento Stanislaus Marin Biological Resources Assessment 01,000500 Feet 1:12,000 Figure 2. Project Components Somersville Rd.Legend Study Area Sources: California Spatial Information Libray, USGS Contra Costa County, California September 2013 West Antioch Creek Channel Improvements City of Antioch Study Area on the USGS Quadrangle Figure 3 Biological Resources Assessment 01,500750 Feet 1:18,000 West 10th St. West 4th St.L St.Railroad Tracks O St.Legend Study Area Sources: California Spatial Information Libray, ESRI Contra Costa County, California September 2013 0400200 Feet 1:4,800 Biological Resources Assessment West Antioch Creek Channel Improvements City of Antioch Aerial View of the Study Area Figure 4 West Antioch Creek San Joaquin River Black Diamond Mines Study Area Antioch Municipal Reservoir Markley Canyon BIG BREAK LOW E R S H E R M A N I S L A N D W A SHERMAN ISLAND JERSE Y I S L A N D ANTI O C H PORT OF STOCKTON DONLON ISLAND PORT OF STOCKTON BROWNS ISLAND Antioch Dunes NWR OAKLEY MARSH CREEK TRAIL ANTIOCH SHORELINE Oakley Antioch Pittsburg Contra Costa Sacramento Solano Legend Study Area Hydrologic Connection Public Land and Easements County Boundaries Water Bodies Waterways Sources U.S. Geological Survey’s Bay Area Regional Database, ESRI, Contra Costa County, California Spatial Information Library. Contra Costa County, California Biological Resources AssessmentSeptember 2013 00.80.4 Miles 1:50,688 West Antioch Creek Channel Improvements City of Antioch Hydrologic Connection of West Antioch CreekFigure 5 West 4th St. West 10th St. Legend Study Area Project Extent Land Cover Types Ruderal Alkali Grassland Seasonal Wetland Alkali Wetland Permanent Wetland Riparian Woodland/Scrub Stream Stream (in Culvert) Developed Sources: California Spatial Information Libray, Contra Costa County Contra Costa County, California September 2013 Biological Resources Assessment 0250125 Feet 1:3,000 West Antioch Creek Channel Improvements City of Antioch Land Cover Types Figure 6 Carex comosa Madia radiata Madia radiata Isocoma arguta Isocoma arguta Sidalcea keckii Juglans hindsii Campanula exigua Campanula exigua Campanula exigua Campanula exigua Amsinckia lunaris Amsinckia lunaris Atriplex depressa Amsinckia lunaris Amsinckia lunarisAmsinckia lunaris Amsinckia lunaris Atriplex depressa Amsinckia lunaris Meconella oregana Meconella oregana Amsinckia lunaris Amsinckia lunaris Amsinckia lunaris Amsinckia lunaris Downingia pusilla Downingia pusilla Atriplex depressa Atriplex depressa Atriplex depressa Sanicula saxatilis Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Dirca occidentalis Dirca occidentalis Senecio aphanactis Didymodon norrisii Didymodon norrisii Navarretia gowenii Navarretia gowenii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Didymodon norrisii Dirca occidentalis Lilaeopsis masonii Dirca occidentalis Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Dirca occidentalis Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Sanicula saxatilis Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Dirca occidentalis Lilaeopsis masonii Lilaeopsis masoniiLilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masoniiLilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Lilaeopsis masonii Sanicula saxatilis Lilaeopsis masonii Lilaeopsis masonii Atriplex joaquinana Limosella australis Limosella australis Limosella australis Limosella australis Limosella australis Limosella australis Limosella australis Limosella australis Limosella australis Limosella australis Limosella australis Limosella australis Limosella australis Limosella australis Atriplex joaquinana Atriplex joaquinana Atriplex joaquinana Viburnum ellipticum Monolopia gracilens Monolopia gracilens Viburnum ellipticum Viburnum ellipticum Viburnum ellipticum Atriplex joaquinana Atriplex joaquinana Limosella australis Anomobryum julaceum Limosella australis Limosella australis Limosella australis Limosella australis Limosella australis Limosella australis Limosella australisViburnum ellipticum Atriplex joaquinana Limosella australis Limosella australis Limosella australis Atriplex joaquinana Atriplex joaquinana Atriplex joaquinana Atriplex joaquinana Limosella australis Limosella australis Limosella australis Atriplex joaquinana Limosella australis Limosella australis Limosella australis Limosella australis Limosella australis Limosella australis Limosella australis Limosella australis Limosella australis Limosella australis Atriplex joaquinana Atriplex joaquinana Atriplex joaquinana Atriplex joaquinana Atriplex joaquinana Atriplex joaquinana Atriplex joaquinana Limosella australis Limosella australis Limosella australis Limosella australis Limosella australis Eriogonum truncatum Eriogonum truncatum Hesperolinon breweri Hesperolinon breweri Hesperolinon breweri Hesperolinon breweri Hesperolinon breweri Fritillaria liliacea Malacothamnus hallii Stuckenia filiformis Malacothamnus hallii Malacothamnus hallii Malacothamnus hallii Malacothamnus hallii Stuckenia filiformis Malacothamnus hallii Malacothamnus hallii Fritillaria liliacea Sagittaria sanfordii Fritillaria agrestis Fritillaria agrestis Fritillaria agrestis Fritillaria agrestis Fritillaria agrestis Fritillaria agrestis Hesperolinon breweri Hesperolinon breweri Hesperolinon breweri Hesperolinon breweri Hesperolinon breweri Phacelia phacelioides Trifolium hydrophilum Trifolium hydrophilum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Helianthella castanea Helianthella castaneaHelianthella castanea Helianthella castanea Helianthella castanea Helianthella castanea Helianthella castanea Amsinckia grandiflora Helianthella castanea Helianthella castanea Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Helianthella castanea Blepharizonia plumosa Blepharizonia plumosa Blepharizonia plumosa Blepharizonia plumosa Helianthella castanea Helianthella castanea Helianthella castanea Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Helianthella castanea Helianthella castanea Blepharizonia plumosa Blepharizonia plumosa Blepharizonia plumosa Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Helianthella castanea Helianthella castanea Helianthella castanea Blepharizonia plumosa Blepharizonia plumosa Blepharizonia plumosa Blepharizonia plumosa Blepharizonia plumosa Helianthella castanea Helianthella castanea Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentumSymphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Helianthella castanea Blepharizonia plumosa Blepharizonia plumosa Blepharizonia plumosa Blepharizonia plumosa Blepharizonia plumosa Blepharizonia plumosa Streptanthus hispidus Streptanthus hispidus Streptanthus hispidus Symphyotrichum lentum Helianthella castanea Helianthella castanea Helianthella castanea Helianthella castanea Helianthella castanea Helianthella castanea Helianthella castanea Helianthella castanea Helianthella castanea Helianthella castanea Helianthella castanea Helianthella castanea Helianthella castanea Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Blepharizonia plumosa Phacelia phacelioides Phacelia phacelioides Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Symphyotrichum lentum Helianthella castanea Symphyotrichum lentum Helianthella castanea Helianthella castanea Streptanthus hispidus Symphyotrichum lentum Helianthella castanea Helianthella castanea California macrophylla Calochortus pulchellus Calochortus pulchellus Calochortus pulchellus Calochortus pulchellus Calochortus pulchellus California macrophylla California macrophylla California macrophylla Calochortus pulchellus Calochortus pulchellus California macrophylla California macrophylla Calochortus pulchellus Calochortus pulchellus Calochortus pulchellus Calochortus pulchellus Calochortus pulchellus Calochortus pulchellus Calochortus pulchellus Calochortus pulchellus Calochortus pulchellusCalochortus pulchellus Calochortus pulchellus Calochortus pulchellus Calochortus pulchellus Scutellaria lateriflora Scutellaria galericulata Scutellaria galericulata Scutellaria galericulata Plagiobothrys hystriculus Plagiobothrys hystriculus Plagiobothrys hystriculus Potamogeton zosteriformis Arctostaphylos auriculata Arctostaphylos auriculata Plagiobothrys hystriculus Arctostaphylos auriculataTropidocarpum capparideum Arctostaphylos auriculata Arctostaphylos auriculata Astragalus tener var. tener Astragalus tener var. tener Chloropyron molle ssp. molle Chloropyron molle ssp. molle Chloropyron molle ssp. molle Chloropyron molle ssp. molle Cicuta maculata var. bolanderi Centromadia parryi ssp. parryi Centromadia parryi ssp. parryi Cicuta maculata var. bolanderi Centromadia parryi ssp. parryi Centromadia parryi ssp. parryi Cicuta maculata var. bolanderi Cicuta maculata var. bolanderi Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Lathyrus jepsonii var. jepsonii Oenothera deltoides ssp. howellii Centromadia parryi ssp. congdonii Centromadia parryi ssp. congdonii Centromadia parryi ssp. congdonii Centromadia parryi ssp. congdonii Oenothera deltoides ssp. howellii Oenothera deltoides ssp. howellii Oenothera deltoides ssp. howellii Navarretia nigelliformis ssp. radians Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Hibiscus lasiocarpos var. occidentalis Arctostaphylos manzanita ssp. laevigata Eryngium racemosum Cryptantha hooveriEriogonum truncatum Blepharizonia plumosa Blepharizonia plumosa California macrophylla California macrophylla California macrophylla Tropidocarpum capparideum Eschscholzia rhombipetala Atriplex joaquinana Lasthenia conjugens Lasthenia conjugens Lasthenia conjugens Tropidocarpum capparideum Chloropyron molle ssp. molle Centromadia parryi ssp. congdonii Centromadia parryi ssp. congdonii Centromadia parryi ssp. congdonii Hibiscus lasiocarpos var. occidentalis Contra Costa Solano Sacramento Napa San Joaquin Orinda Oakley Concord Benicia Martinez Lafayette Pittsburg Walnut Creek Pleasant Hill West Pittsburg Gri z z l y I s l a n d W i l d l i f e A r e a EBMUDFrank’s Tr a c t Briones Reg i o n a l P a r kEastern SwettKing Ranch Palm Tract CEVal le jo Swett Legend Study Area Distance Radii 1, 5, & 10 miles County Boundaries Public Land and Easements Water Bodies Waterways California Natural Diversity Database Occurrences Presence Presumed Extant Possibly Extirpated Extirpated California Natural Diversity Database Occurrences Precision Non-Specific Specific Sources: ESRI, Contra Costa Information Technology Department, California Spatial Information Library, California Department of Fish and Game.Contra Costa County, California Biological Resource Assessment West Antioch Creek Channel Improvements City of Antioch Special Status Plant Species within the Vicinity September 2013 Figure 7 02.51.25 Miles 1:158,400 hoary bat hoary bat hoary bat hoary bat pallid bat pallid bat pallid bat pallid bat pallid bat pallid bat Delta smelt Delta smelt Delta smelt Delta smelt Delta smelt Delta smelt Delta smelt Delta smelt Delta smelt Delta smelt Delta smelt Delta smelt Delta smelt Delta smelt Delta smelt Delta smelt golden eagle golden eagle golden eagle golden eagle bank swallow golden eagle golden eagle Suisun shrew Suisun shrew burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl burrowing owl Swainson’s hawk Swainson’s hawk American badger American badger Swainson’s hawk Swainson’s hawk western red bat western red bat western red bat Swainson’s hawk Swainson’s hawk Swainson’s hawk Swainson’s hawk Swainson’s hawk Swainson’s hawk Swainson’s hawk Swainson’s hawk American badger American badger Swainson’s hawk Swainson’s hawk Swainson’s hawk Swainson’s hawk Swainson’s hawk Swainson’s hawk Swainson’s hawk Swainson’s hawk Swainson’s hawk Swainson’s hawk western red bat short-eared owl ferruginous hawk northern harrier great blue heron great blue heron Sacramento perch great blue heron Alameda whipsnake Alameda whipsnake Alameda whipsnake Alameda whipsnake Alameda whipsnake Alameda whipsnake Alameda whipsnake Alameda whipsnake Alameda whipsnake Alameda whipsnake Alameda whipsnake Alameda whipsnake Alameda whipsnake Alameda whipsnake Alameda whipsnake Alameda whipsnake Alameda whipsnake Alameda whipsnake Alameda whipsnake Alameda whipsnake white-tailed kite white-tailed kite white-tailed kite loggerhead shrike white-tailed kite giant garter snake giant garter snake giant garter snake giant garter snake giant garter snake western pond turtle western pond turtle western pond turtle western pond turtle western pond turtle western pond turtle San Joaquin kit fox San Joaquin kit fox San Joaquin kit fox San Joaquin kit fox San Joaquin kit fox San Joaquin kit fox San Joaquin kit fox coast horned lizard western pond turtle western pond turtle western pond turtle Suisun song sparrow Suisun song sparrow Suisun song sparrow Suisun song sparrow Suisun song sparrow Suisun song sparrow Suisun song sparrowSuisun song sparrow Suisun song sparrow western pond turtle western pond turtle western pond turtle western pond turtle western pond turtle western pond turtle western pond turtle western pond turtle western pond turtle San Joaquin kit fox coast horned lizard western pond turtle western pond turtle western pond turtle western pond turtle western pond turtle San Joaquin kit fox western pond turtle western pond turtle western pond turtle western pond turtle western pond turtle western pond turtle western pond turtle western pond turtlewestern pond turtle western pond turtle western pond turtle western pond turtle western pond turtle western pond turtle San Joaquin kit fox San Joaquin kit fox western pond turtle Suisun song sparrow western pond turtle Suisun song sparrow western pond turtle western pond turtle western pond turtle western pond turtle western pond turtle western pond turtle western pond turtle western pond turtle western pond turtle Suisun song sparrow big free-tailed bat Suisun song sparrow Suisun song sparrow western pond turtle Suisun song sparrow Suisun song sparrow Suisun song sparrow Suisun song sparrow Suisun song sparrow Suisun song sparrow Suisun song sparrow Suisun song sparrow Suisun song sparrow Suisun song sparrow Suisun song sparrow Suisun song sparrow Sacramento splittail Sacramento splittail Sacramento splittail tricolored blackbird tricolored blackbird tricolored blackbird Antioch andrenid bee California black rail California black rail California black rail California black rail California black rail California black rail California black rail California black rail California black rail California black rail California black rail California black rail California black rail California least tern California black rail California black railCalifornia black rail California black rail California black rail California black rail California black rail California black rail California black rail California black rail California black rail Berkeley kangaroo rat California black rail California black rail California black rail California black rail California black rail California black rail California black rail Antioch multilid wasp California black rail California least tern Berkeley kangaroo rat California black rail California black rail California black rail silvery legless lizard silvery legless lizard silvery legless lizard California linderiella California linderiella silvery legless lizard California linderiella midvalley fairy shrimp midvalley fairy shrimp silvery legless lizard California linderiella silvery legless lizard redheaded sphecid wasp silvery legless lizard California clapper rail California clapper rail California clapper rail California clapper rail California clapper rail California clapper rail California clapper rail California clapper rail California clapper rail California clapper rail California clapper rail California clapper rail California clapper rail molestan blister beetle molestan blister beetle salt-marsh harvest mouse salt-marsh harvest mouse salt-marsh harvest mouse salt-marsh harvest mouse salt-marsh harvest mouse salt-marsh harvest mouse San Joaquin pocket mouse salt-marsh harvest mouse salt-marsh harvest mouse salt-marsh harvest mouse vernal pool fairy shrimp vernal pool fairy shrimp vernal pool fairy shrimp salt-marsh harvest mouse vernal pool fairy shrimp salt-marsh harvest mouse salt-marsh harvest mouse salt-marsh harvest mouse salt-marsh harvest mouse salt-marsh harvest mouse salt-marsh harvest mouse vernal pool fairy shrimp vernal pool fairy shrimp San Joaquin pocket mouse San Joaquin pocket mouse San Joaquin pocket mouse salt-marsh harvest mouse salt-marsh harvest mouse salt-marsh harvest mouse salt-marsh harvest mouse salt-marsh harvest mouse salt-marsh harvest mouse salt-marsh harvest mouse salt-marsh harvest mouse salt-marsh harvest mouse salt-marsh harvest mouse San Joaquin pocket mouse double-crested cormorant salt-marsh harvest mouse salt-marsh harvest mouse salt-marsh harvest mouse salt-marsh harvest mouse salt-marsh harvest mouse salt-marsh harvest mouse salt-marsh harvest mouse salt-marsh harvest mouse salt-marsh harvest mouse salt-marsh harvest mouse salt-marsh harvest mouse American peregrine falcon San Bruno elfin butterfly California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog vernal pool tadpole shrimp California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog vernal pool tadpole shrimp California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog California red-legged frog Sacramento anthicid beetle Hurd’s metapogon robberfly Lange’s metalmark butterfly California tiger salamander California tiger salamander foothill yellow-legged frog California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander foothill yellow-legged frog California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander saltmarsh common yellowthroat saltmarsh common yellowthroat saltmarsh common yellowthroat saltmarsh common yellowthroat saltmarsh common yellowthroat saltmarsh common yellowthroat saltmarsh common yellowthroat saltmarsh common yellowthroat Bridges’ coast range shoulderband Bridges’ coast range shoulderband curved-foot hygrotus diving beetle curved-foot hygrotus diving beetle curved-foot hygrotus diving beetle Blennosperma vernal pool andrenid bee burrowing owl tricolored blackbird tricolored blackbird California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander California tiger salamander Contra Costa Solano San Joaquin Sacramento Napa Orinda Oakley Concord Benicia Martinez Lafayette Pittsburg Walnut Creek Pleasant Hill West Pittsburg Mo u n t D i a b l o S t a t e P a r k Gri z z l y I s l a n d W i l d l i f e A r e a EBMUDFrank’s T r a c t Briones Reg i o n a l P a r kEastern SwettPalm Tract CE Legend Study Area Distance Radii 1, 5, & 10 miles County Boundaries Public Land and Easements Water Bodies Waterways California Natural Diversity Database Occurrences Presence Presumed Extant Possibly Extirpated Extirpated California Natural Diversity Database Occurrences Precision Non-Specific Specific Sources: ESRI, Contra Costa Information Technology Department, California Spatial Information Library, California Department of Fish and Game.Contra Costa County, California Biological Resource Assessment West Antioch Creek Channel Improvements City of Antioch Special Status Wildlife Species within the Vicinity September 2013 Figure 8 02.51.25 Miles 1:158,400 Legend Study Area Project Extent Delta Smelt Habitat (6.47 ac. in Study Area; 4.44 ac. in Project Extent)* Sources: California Spatial Information Libray, Contra Costa County Contra Costa County, California West Antioch Creek Channel Improvements City of Antioch Delta Smelt Designated Critical Habitat and Habitat in the Study Area September 2013 Figure 9 Biological Resources Assessment 0250125 Feet 1:3,000 Delta Smelt Critical Habitat Project Site Solano Yolo San Joaquin Napa Sacramento Alameda Contra Costa StanislausSan Mateo San Francisco El Dorado Sonoma Marin Tracy Oakland Stockton Livermore Pittsburg Fairfield Sacramento Walnut Creek *The entire study area is within Designated Delta Smelt Critical Habitat. Legend Study Area Project Extent CRF Habitat Breeding Habitat (6.47 ac. in Study Area; 4.44 ac. in Project Extent) Non-Breeding Aquatic Habitat (2.33 ac. in Study Area; 2.20 ac. in Project Extent) Upland Habitat (19.46 ac. in Study Area; 3.29 ac. in Project Extent*) Sources: California Spatial Information Libray, Contra Costa County Contra Costa County, California September 2013 Biological Resources Assessment 0250125 Feet 1:3,000 West Antioch Creek Channel Improvements City of Antioch California Red-legged Frog Habitat Figure 10 *An additional 10.46 ac. of upland CRF habitat may be temporarily impacted by staging areas in ruderal grassland. Legend Study Area Project Extent Non-Breeding Rail Habitat (4.93 ac. in Study Area; 3.01 ac. in Project Extent) 700 foot buffer around Habitat Sources: California Spatial Information Libray, Contra Costa County Contra Costa County, California September 2013 Biological Resources Assessment 0250125 Feet 1:3,000 West Antioch Creek Channel Improvements City of Antioch California Black Rail Habitat Figure 11 Legend Study Area Project Extent White-Tailed Kite Nesting Habitat (1.23 acre in Study Area) Breeding Tricolored Blackbird Habitat (4.93 ac. in Study Area; 3.01 ac. in Project Extent) Burrowing Owl Breeding Habitat (18.27 ac. in Study Area; 3.15 ac. in Project Extent*) Sources: California Spatial Information Libray, Contra Costa County Contra Costa County, California September 2013 Biological Resources Assessment 0250125 Feet 1:3,000 West Antioch Creek Channel Improvements City of Antioch White-Tailed Kite, Burrowing Owl, and Tricolored Blackbird Habitat Figure 12 *An additional 10.46 ac. of BUOW habitat may be impacted by staging areas in ruderal grassland. Legend Study Area Project Extent WPT Habitat (8.71 ac. in Study Area; 6.64 ac. in Project Extent) Sources: California Spatial Information Libray, Contra Costa County Contra Costa County, California September 2013 Biological Resources Assessment 0250125 Feet 1:3,000 West Antioch Creek Channel Improvements City of Antioch Western Pond Turtle Habitat Figure 13 Appendix B Laws, Ordinances and Regulations West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 79 APPENDIX B LAWS, ORDINANCES & REGULATIONS Appendix B Laws, Ordinances and Regulations West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 80 Laws, Ordinances & Regulations FEDERAL REGULATIONS FEDERAL ENDANGERED SPECIES ACT (FESA) The Federal Endangered Species Act of 1973, as amended (FESA), was created to “conserve the ecosystems upon which endangered and threatened species depend.” The U.S. Fish and Wildlife Service (USFWS) and National Oceanic and Atmospheric Administration, National Marine Fisheries Service have authority over projects that may result in a “take” of a species listed as threatened or endangered under the FESA. Under the FESA, plant and wildlife species, including all lower taxa including subspecies and varieties, are listed threatened or endangered based on (A) the present or threatened destruction, modification, or curtailment of their habitat or range, (B) overutilization for commercial, recreational, scientific, or educational purposes, (C) disease or predation, (D) the inadequacy of existing regulatory mechanisms, or (E) other natural or manmade factors affecting their continued existence. FESA listing categories include endangered, threatened and candidates for listing. FESA provides protection for species listed as endangered, and prohibits the “take” of such species in areas under federal jurisdiction or in violation of state law. A “take” is defined as any action to “harass, harm, pursue, hunt, shoot, wound, kill, trap, capture or collect, or to attempt to engage in any such conduct. Species listed as threatened do not warrant listing as endangered and are not provided the same protection under Section 9; however, USFWS often applies the same protection as authorized by Section 4(d) of the FESA. Section 4(d) also allows for exceptions to the take rule under special circumstances. If a project would result in a take of a federally listed species, either an incidental take permit, under Section 10(a) of the FESA, or a federal interagency consultation under Section 7 of FESA, is required prior to the take. Current inventories published for species listed under the FESA include the Endangered and Threatened Wildlife and Plants (USFWS 1999), Endangered and Threatened Wildlife and Plants; Review of Native Species That are Candidates or Proposed for Listing as Endangered or Threatened; Annual Notice of Findings on Resubmitted Petitions; Annual Description of Progress on Listing Actions; Proposed Rule (USFWS 2005a), Endangered and Threatened Species; Establishment of Species of Concern List, Addition of Species to Species of Concern List, Description of Factors for Identifying Species of Concern, and Revision of Candidate Species List Under the Endangered Species Act (NOAA 2004). CLEAN WATER ACT The U.S. Army Corps of Engineers (USACE) and the U.S. Environmental Protection Agency (EPA) have jurisdiction over “Waters of the United States, which include navigable waters of the United States, interstate waters, all other waters where the use or degradation or destruction of the waters could affect interstate or foreign commerce, tributaries to any of these waters, and wetlands that meet any of these criteria or that are adjacent to any of these waters or their tributaries. Waters of the United States include marine waters, tidal areas, and stream channels. Under federal regulations, wetlands are defined as “those areas that are inundated or saturated by surface or groundwater at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. Wetlands generally include swamps, marshes, bogs, and similar areas” [33 C.F.R. §328.3(b)]. Presently, to be considered a wetland, a site must exhibit three criteria: hydrophytic vegetation, hydric soils, and wetland hydrology existing under the “normal circumstances” for the site. Wetlands that are non-navigable, isolated, and intrastate only may not be subject to USACE jurisdiction under Section 404 of the CWA, pursuant to the “SWANCC” decision, Solid Waste Agency of Northern Cook County vs. United Stated Army Corps of Engineers (2001) 531 U.S. 159. Although isolated wetlands may not be subject to USACE jurisdiction under Section 404, they are considered “waters of the Appendix B Laws, Ordinances and Regulations West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 81 State” under California’s Porter-Cologne Water Quality Control Act (Cal. Water Code §§ 13020, et seq.) and, as such, are subject to regulation by Regional Water Quality Control Boards (RWQCB). There are nine RWQCBs under the State Water Resources Control Board. Policies regulating the loss of wetlands generally stress the need to compensate for wetland acreage losses by creating wetlands from non-wetland habitat on at least an acre-for-acre basis. That is, mitigation requiring a no-net-loss of wetland functions and values is typically required. Projects that cause the discharge of dredged or fill materials in Waters of the United States require permits from the USACE. Actions affecting small areas of jurisdictional Waters may qualify for a Nationwide Permit (NWP), provided conditions of the NWP are met (such as avoiding impacts to threatened or endangered species or to important cultural sites). Projects that do not meet the Nationwide Permit conditions, or projects that disturb a larger area, require an Individual Permit. The process for obtaining an Individual Permit requires a detailed alternatives analysis and development of a comprehensive mitigation/monitoring plan. Section 401 of the Clean Water Act is discussed below. WATERS OF THE UNITED STATES “Waters of the United States”, which includes “wetlands” and “other waters”, are defined by 33 CFR §328.3 as follows:  All waters which are currently used, or were used in the past, or may be susceptible to use in interstate or foreign commerce, including all waters which are subject to the ebb and flow of the tide.  All interstate waters including interstate wetlands.  All “other waters” such as intrastate lakes, rivers, streams (including intermittent streams), mudflats, sandflats, wetlands, sloughs, prairie potholes, wet meadows, playa lakes, or natural ponds, the use, degradation or destruction of which could affect interstate or foreign commerce including any such waters: o which are or could be used by interstate or foreign travelers for recreational or other purposes; or o from which fish or shellfish are or could be taken and sold in interstate or foreign commerce; or o which are used or could be used for industrial purpose by industries in interstate commerce.  All impoundments of waters otherwise defined as waters of the United States under the definition.  Tributaries of waters identified above.  The territorial seas.  Wetlands adjacent to waters (other than wetlands) identified above. The USACE generally does not consider the following waters to be “waters of the United States.” However, the USACE reserves the right on a case-by-case basis to determine that a particular water body within these categories of waters is a water of the United States. The Environmental Protection Agency also has the right to determine on a case-by-case basis if any of these waters are “waters of the United States.”  Non-tidal drainage and irrigation ditches excavated on dry land.  Artificially irrigated areas which would revert to upland if the irrigation ceased. Appendix B Laws, Ordinances and Regulations West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 82  Artificial lakes or ponds created by excavating and/or diking dry land to collect and retain water and which are used exclusively for such purposes as stock watering, irrigation, settling basins, or rice growing.  Artificial reflecting or swimming pools or other small ornamental bodies of water created by excavating and/or diking dry land to retain water for primarily aesthetic reasons.  Water filled depressions created in dry land incidental to construction activity and pits excavated in dry land for the purpose of obtaining fill, sand, or gravel unless and until the construction or excavation operation is abandoned and the resulting body of water meets the definition of waters of the United States [see 33 CFR 328.3(a)]. Wetlands USACE jurisdictional “wetlands”, as defined by 33 CFR §328.3(b), are those areas which are inundated or saturated by surface or ground water at a frequency and duration sufficient to support, and that under normal circumstances, do support a prevalence of vegetation typically adapted for life in saturated soil conditions. Wetlands generally include swamps, marshes, bogs, and similar areas. Ordinary High Water Mark The USACE’s jurisdiction over “other waters” extends to the limit of the Ordinary High Water Mark or the upward extent of any adjacent wetland. The Ordinary high water mark, as defined by 33 CFR §328.3(e), is the visible line on the shore/bank established by the fluctuations of water and indicated by physical characteristics such as:  A clear, natural line impressed on the bank;  shelving;  changes in the character of soil;  destruction of terrestrial vegetation;  the presence of litter and debris; or  other appropriate means that consider the characteristics of the surrounding areas. RIVERS AND HARBORS ACT Section 10 of the Rivers and Harbors Act of 1899 requires authorization from the Secretary of the Army, acting through the U.S. Army Corps of Engineers, to construct any structure in or over any “navigable water of the United States.” Structures or work outside the limits defined as navigable waters requires a Section 10 permit if the structure or work affects the course, location, or condition of the water body. The law applies to dredging or disposal of dredged materials, excavation, filling, rechannelization, or any other modification of a navigable water of the United States. It includes without limitation, any wharf, dolphin, weir, boom breakwater, jetty, groin, bank protection (e.g. riprap, revetment, bulkhead), mooring structures such as pilings, aerial or subaqueous power transmission lines, intake or outfall pipes, permanently moored floating vessel, tunnel, artificial canal, boat ramp, aids to navigation, and any other permanent, or semi-permanent obstacle or obstruction. Navigable waters are generally defined as waters of the United States that are subject to the ebb and flow of the tide, shoreward to the mean high water mark, and/or are presently used, or have been used in the past, or may be susceptible to use to transport interstate or foreign commerce, as defined in 32 CFR §322.2(a). Appendix B Laws, Ordinances and Regulations West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 83 MIGRATORY BIRD TREATY ACT (MBTA) The Migratory Bird Treaty Act (16 U.S.C. 703-712), administered by the U.S. Fish and Wildlife Service, implements four treaties between the United States and Canada, Mexico, Japan and Russia, respectively, to manage and conserve migratory birds that cross national borders. The Migratory Bird Treaty Act makes it unlawful in any manner, unless expressly authorized by permit pursuant to federal regulations, to pursue, hunt, take, capture, kill, attempt to take, capture or kill, possess, offer for sale, sell, offer to barter, barter, offer to purchase, purchase, deliver for shipment, ship, export, import, cause to be shipped, exported, or imported, deliver for transportation, transport or cause to be transported, carry or cause to be carried, or receive for shipment, transportation, carriage, or export at any time, or in any manner, any migratory bird, or any part, nest, or egg of any such bird. The definition of “take” is defined as any act to “pursue, hunt, shoot, wound, kill, trap, capture or collect, or attempt to pursue, hunt, shoot, wound, kill, trap, capture or collect.” This includes most actions, direct and indirect, that could result in “take” or possession, whether it is temporary or permanent, of any protected species (APLIC and USFWS 2005d). Although harassment and habitat modification do not constitute a take in themselves under the Migratory Bird Treaty Act or Fish and Game Code, such actions that result in direct loss of birds, nests or eggs including nest abandonment or failure are considered take under such regulations. A list of migratory birds protected under the Migratory Bird Treaty Act, available in Section 10.13 of Title 50 of the Code of Federal Regulation, excludes nonnative species that have not been introduced into the U.S. or its territories, and species that belong to the families not listed in any of the four treaties underlying the Migratory Bird Treaty Act, such as wrentit (Chamaea fasciata), European starling (Sturnus vulgaris), California quail (Callipepla californica), Ring-necked Pheasant (Phasianus colchicus) and Chukar (Alectoris chukar), among other species less common in California. On December 8, 2004 the U.S. Congress passed the Migratory Bird Treaty Reform Act (Division E, Title I, Section 143 of the Consolidated Appropriations Act, 2005, PL 108–447; MBTRA), which excludes all migratory birds nonnative or have been human introduced to the U.S. or its territories. It defines a native migratory bird as a species present within the U.S. and its territories as a result of natural biological or ecological processes. The USFWS published a list of the bird species excluded from the Migratory Bird Treaty Act on March 15, 2005 (70 FR 12710), which included two species commonly observed in the U.S., the rock pigeon (Columba livia) and domestic goose (Anser anser ‘domesticus’). BALD AND GOLDEN EAGLE PROTECTION ACT The Bald and Golden Eagle Protection Act (16 U.S.C. 668-668d; June 8, 1940) as amended, provides protection for the bald eagle (Haliaeetus leucocephalus) and golden eagle (Aquila chrysaetos) by prohibiting the taking, possession and commerce of such birds, their nests, eggs or feathers unless expressly authorized by permit pursuant to federal regulations. The Act also provides criminal and civil penalties for violations of the Act and defines take as any action to pursue, shoot, shoot at, poison, wound, kill, capture, trap, collect, molest or disturb. STATE REGULATIONS CALIFORNIA ENDANGERED SPECIES ACT (CESA) The California Endangered Species Act of 1984, administered by the California Department of Fish and Wildlife (CDFW), recognizes that certain species of fish, wildlife and plants are in danger of, or threatened with, extinction because their habitats are threatened with destruction, adverse modification, or severe curtailment, or because of overexploitation, disease, predation, or other factors. The Legislature recognized that these species of fish, wildlife and plants are of ecological, educational, historical, recreational, aesthetic, economic and scientific value to the people of the state, and the conservation, protection and enhancement of these species and their habitat is of statewide concern. The CESA built on the California Native Plant Protection Act (NPPA) (discussed below) and increased regulatory protection Appendix B Laws, Ordinances and Regulations West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 84 for plant species to parallel the CESA. Listing categories under the CESA include endangered, threatened, rare or candidate for listing (Cal. Fish and Game Code §§ 2062, 2067 and 2068). The current inventories published for plants listed under the CESA are the State and Federally Listed Endangered, Threatened and Rare Plants of California (CDFW 2013b) and the Special Vascular Plants, Bryophytes and Lichens List (CDFW 2013d). Current inventories for fish and wildlife species include State and Federally Listed Endangered and Threatened Animals of California (CDFW 2013c) and the Special Animals (CDFG 2011). CESA requires state agencies to consult with the CDFW when preparing California Environmental Quality Act (CEQA) documents to ensure that the state lead agency actions do not jeopardize the existence of listed species. It directs agencies to consult with CDFW on projects or actions that could affect listed species, directs CDFW to determine whether jeopardy would occur, and allows CDFW to identify “reasonable and prudent alternatives” to the project consistent with conserving the species. CESA prohibits the taking of state-listed endangered or threatened plant and wildlife species. CDFW exercises authority over mitigation projects involving state-listed species, including those resulting from CEQA mitigation requirements. CDFW may authorize a taking through an incidental take permit, if the impacts of the take are minimized and fully mitigated. Mitigation often takes the form of an approved habitat management plan or management agreement that avoids or compensates for possible jeopardy. CDFW requires preparation of mitigation plans in accordance with published guidelines. CALIFORNIA FISH AND GAME CODE The California Fish and Game Code provides protection for California’s plant and wildlife species and precludes taking of species listed as fully protected by the California Department of Fish and Wildlife. Section 86 defines take as any action to hunt, pursue, catch, capture, or kill, or attempt to hunt, pursue, catch, capture, or kill. Unless expressly authorized under Chapter 1.5, Article 3, Section 2081, which outlines exceptions for taking of endangered and threatened species, endangered, threatened and fully protected species shall not be taken for any purpose. Section 3503 prohibits the take, possession, or needless destruction of the nest or eggs of any bird; §3503.5 prohibits the take, possession, or needless destruction of any nests, eggs or birds in the orders Falconiformes (new world vultures, hawks, eagles, ospreys and falcons, among others)or Strigiformes (owls); §3511 prohibits the take or possession of fully protected birds; and §3513 prohibits the take or possession of any migratory nongame bird or part thereof as designated in the Migratory Bird Treaty Act. Section 4700 provides protection for fully protected mammals unless expressly authorized under §2081.7. Fully protected mammals include Morrow Bay kangaroo rat, bighorn sheep, except Nelson bighorn sheep (Ovis canadensis nelsoni), northern elephant seal, Guadalupe fur seal, ring-tailed cat, Pacific right whale, salt-marsh harvest mouse, southern sea otter and wolverine. Section 5050 provides protection for fully protected amphibians and reptiles unless expressly authorized under §2081.7. Fully protected amphibians and reptiles include blunt-nosed leopard lizard, San Francisco garter snake, Santa Cruz long-toed salamander, limestone salamander and black toad. Section 5515 provides protection for fully protected fish unless expressly authorized under §2081.7. Fully protected fish include Colorado River squawfish, thicktail chub, Mohave chub, Lost River sucker, Modoc sucker, shortnose sucker, humpback sucker, Owens River pupfish, unarmored threespine stickleback and rough sculpin. PORTER-COLOGNE WATER QUALITY CONTROL ACT AND SECTION 401 OF THE CLEAN WATER ACT The Regional Water Quality Control Board administers both the Porter-Cologne Water Quality Control Act and Section 401 of the Clean Water Act. The Porter-Cologne Water Quality Control Act requires “any person discharging waste, or proposing to discharge waste, within any region that could affect the ‘waters of the State’ to file a report of discharge” with the RWQCB (Cal. Water Code Section 13260). Waters of the State are “any surface water or groundwater, including saline waters, within the boundaries of the state” [Cal. Water Code Section 13050(e)]. Appendix B Laws, Ordinances and Regulations West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 85 Pursuant to Section 401 of the Clean Water Act, the RWQCBs consider waters of the State to include (without limitation) rivers, streams, lakes, bays, marshes, mudflats, unvegetated seasonally ponded areas, drainage swales, sloughs, wet meadows, natural ponds, vernal pools, diked bay lands, seasonal wetlands, and riparian woodlands. The RWQCBs have also claimed jurisdiction and exercised discretionary authority over “isolated waters”, as discussed above. NATIVE PLANT PROTECTION ACT (NPPA) The Native Plant Protection Act of 1977, which is implemented by the CDFW, was created to “preserve, protect and enhance rare and endangered plants in this State.” The NPPA gave the CDFW the authority to designate native plants as endangered or rare and to regulate, through permits, activities such as collecting, transporting, or selling plants protected by the NPPA. The NPPA also provides the definitions of native, threatened and endangered plants in Section 1901 of the California Fish and Game Code. CALIFORNIA ENVIRONMENTAL QUALITY ACT (CEQA) The California Environmental Quality Act of 1970 requires public agencies to evaluate the environmental implications of their actions, and to prevent environmental effects by avoiding or reducing significant impacts of their decisions, where feasible. CEQA was intended to assist public agencies in systematically identifying both the significant effects of proposed projects and the feasible alternatives or feasible mitigation measures which will avoid or substantially lessen such significant effects. In enacting CEQA, the Legislature expressed a policy that public agencies should not approve projects as proposed if there are such feasible alternatives or mitigation measures. Among its goals, CEQA was intended “to preserve for future generations representations of all plant and animal communities” (Cal. Pub. Res. Code §21001c). Through this process impacts and mitigation to state and federally listed plant species are discussed. The California Native Plant Society (CNPS) has developed and maintains an inventory of rare, threatened and endangered plants of California. This information is published in the Inventory of Rare and Endangered Vascular Plants of California. The inventory presents a ranking system for rare plants within the state known as California Rare Plant Ranks. The CNPS inventory is endorsed by the CDFW and effectively serves as its list of “candidate” plant species. The following identifies the definitions of the California Rare Plant Ranks:  Rank 1A: Plants presumed to be extinct in California;  Rank 1B: Plants that are rare, Threatened, or Endangered in California and elsewhere;  Rank 2: Plants that are rare, Threatened, or Endangered in California, but are more numerous elsewhere;  Rank 3: Plants about which more information is needed (a review list): and  Rank 4: Plants of limited distribution (a watch list). Rank 1B and 2 species are considered eligible for state listing as Endangered or Threatened pursuant to the California Fish and Game Code. As part of the CEQA process, such species should be fully considered, as they meet the definition of Threatened or Endangered under the NPPA and Sections 2062 and 2067 of the California Fish and Game Code. Rank 3 and 4 species are considered to be either plants about which more information is needed or are uncommon enough that their status should be regularly monitored. Such plants may be eligible or may become eligible for state listing, and CNPS and CDFW recommend that these species be evaluated for consideration during the preparation of CEQA documents (CNPS 2001), as some of these species may meet NPPA and CESA criteria as threatened or endangered. Appendix B Laws, Ordinances and Regulations West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 86 In addition, CEQA requires that impacts to “resources that are rare or unique to that region” be evaluated [CEQA Guidelines 15125(c)]. This includes botanical resources that are, but not limited to, peripheral populations and disjunct subpopulations. These are informal terms that refer to those species that might be declining or be in need of concentrated conservation actions to prevent decline, but have no legal protection of their own. Also, CEQA Guidelines Section 15380 states “a species not included in any listing…shall nevertheless be considered to be rare or Endangered if the species is likely to become Endangered within the foreseeable future throughout all or a significant portion of its range and may be considered Threatened as that term is used in the ESA.” Appendix C Special-Status Plant Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 87 APPENDIX C SPECIAL-STATUS PLANT SPECIES KNOWN TO OCCUR OR POTENTIALLY OCCURRING IN THE PROJECT VICINITY SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT PREFERENCES, DISTRIBUTION INFORMATION, & ADDITIONAL NOTES* FLOWERING PHENOLOGY/ LIFE FORM HABITAT SUITABILITY & LOCAL DISTRIBUTION POTENTIAL FOR OCCURRENCE FEDERAL/STATE ENDANGERED OR THREATENED AND CALIFORNIA RARE SPECIES Amsinckia grandiflora Large-flowered fiddleneck FE SE 1B.1 No Take Occurs in cismontane woodland and valley and foothill grassland in the foothills of the Diablo Range. Known from fewer than five natural occurrences between 275-550 meters, however reintroductions have also occurred, but those populations are declining. Known from Alameda, Contra Costa and San Joaquin counties. April-May annual herb Suitable vegetation associations present, however study area is outside of elevation range for this taxon and the study area does not include the preferred Altamont soil type of this species. Nearest recorded CNDDB occurrence is a non-specific occurrence 4.15 miles to the southwest in Black Diamond Mines Regional Preserve (EONDX #9687). Not Expected Chloropyron molle ssp. molle Soft bird’s-beak FE SR 1B.2 Coastal salt marshes and swamps. Known from fewer than 20 locations in CCA, NAP, and SOL counties from between 0-3 meters. Presumed extirpated in MRN, SAC, and SON counties. July-November annual herb (hemiparasitic) Suitable vegetation associations and saltwater hydrology present. The nearest recorded CNDDB occurrence is a non-specific location 4 miles east on the San Joaquin River (EONDX #6420). Not Observed Would have been detectable during 2013 surveys. Cirsium hydrophilum var. hydrophilum Suisun thistle FE CEQA 1B.1 Occurs in saltwater marshes and swamps. Known only from SOL County between 0-1 meter. June-September perennial herb Suitable vegetation associations and saltwater hydrology present, however this species has is a Grizzly Bay/ Suisun Marsh endemic and has never been recorded in CCA. Nearest recorded CNDDB occurrence is a non-specific occurrence 16.0 miles to the northwest near Grizzly Island Road (EONDX #6761). This species has a very restricted distribution. Not Expected Cordylanthus nidularis Mt. Diablo bird’s-beak None SR 1B.1 Occurs in chaparral on serpentinite. Know only from CCA between 600-800 meters. July-August annual herb (hemiparasitic) No suitable vegetation associations or appropriate geology present. The nearest recorded CNDDB occurrence is a specific location 10 miles southwest on Mount Diablo (EONDX #8720). None Erysimum capitatum var. angustatum Contra Costa wallflower FE SE 1B.1 Occurs on inland dunes at an elevation of 3-20 meters. Known only from Antioch Dunes in CCA County. March-July perennial herb No suitable dune habitat present. This taxon is only known from the Antioch Dunes which are 1.70 miles north (EONDX #5848). None Appendix C Special-Status Plant Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 88 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT PREFERENCES, DISTRIBUTION INFORMATION, & ADDITIONAL NOTES* FLOWERING PHENOLOGY/ LIFE FORM HABITAT SUITABILITY & LOCAL DISTRIBUTION POTENTIAL FOR OCCURRENCE Lasthenia conjugens Contra Costa goldfields FE CEQA 1B.1 No Take Occurs in cismontane woodland, alkaline playas, valley and foothill grassland, and vernal pools. Occurs on mesic sites. Known from ALA, CCA, MNT, NAP, and SOL counties from between 0-470 meters. Presumed extirpated from MEN, SBA, and SCL counties. March-June annual herb Although suitable vegetation associations are present, this species does not occur in riverine habitat. Alkali grassland and alkali wetland on site are dominated by dense saltgrass instead of a mosaic of annual grasses which this species prefers. Nearest recorded CNDDB occurrence is an extirpated non-specific location 1.25 miles to the southeast (EONDX #42501). Not Expected Lilaeopsis masonii Mason's lilaeopsis None SR 1B.1 Occurs in brackish or freshwater marshes and swamps, riparian scrub. Known from ALA, CCA, NAP, SAC, SJQ, and SOL counties from between 0-10 meters. April-November perennial herb (rhizomatous) Suitable vegetation associations and appropriate tidal hydrologic characteristics are present. Nearest recorded CNDDB occurrence is specific occurrence 0.30 mile east growing along the shore in tidally influenced marsh (EONDX# 7638). All known occurrences within the vicinity are on brackish channels and sloughs (i.e. the San Joaquin River, Dutch Slough, Sandmound Slough, and Old River). Not Observed Would have been detectable during 2013 surveys. Neostapfia colusana Colusa grass FE ST 1B.1 Occurs in large adobe vernal pools. Known from GLE, MER, SOL, STA, an YOL counties between 5-200 meters. Presumed extirpated from COL County. May-August annual herb No suitable vegetation associations or vernal hydrology present. The nearest recorded CNDDB occurrence is a specific record 17 miles north near Olcott Lake (EONDX #6311). None Oenothera deltoides ssp. howellii Antioch Dunes evening-primrose FE SE 1B.1 Occurs on inland dunes at an elevation of 3-20 meters. Known only from three native occurrences in CCA County. An occurrence in SAC County is introduced. March-September perennial herb No suitable dune habitat present. At a minimum, vegetative material of this taxon would have been detectable during the March 2013 site visit. The nearest recorded CNDDB occurrence is a non-specific occurrence 1.65 miles northeast (EONDX #13828). None Sanicula saxatilis Rock sanicle None SR 1B.2 Occurs on rocky substrates in broadleafed upland forest, chaparral, and valley and foothill grassland. Known from fewer than fifteen occurrences from CCA and SCL between 620-1,175 meters. April-May perennial herb Although suitable vegetation associations are present, the study area does not include the preferred rocky substrate and is outside of elevation range for this taxon. The nearest recorded CNDDB occurrence is a specific occurrence 9.00 miles southwest at Mount Diablo (EONDX #4530). Not Expected Sidalcea keckii Keck’s checkerbloom FE CEQA 1B.1 Occurs in cismontane woodland and valley and foothill grassland on serpentinite or clay substrates. Known from FRE, MER, and TUL counties from 75-650 meters. Possibly known from COL, NAP, SOL, and YOL counties. April-June annual herb Although suitable vegetation associations are present within the study area this species is found at higher elevations than those within the study area. This taxon has also never been recorded from CCA. Nearest recorded CNDDB occurrence (EONDX #75788) is a non-specific location approximately 8 miles north in the Montezuma Hills based on an historic collection. Not Expected Appendix C Special-Status Plant Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 89 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT PREFERENCES, DISTRIBUTION INFORMATION, & ADDITIONAL NOTES* FLOWERING PHENOLOGY/ LIFE FORM HABITAT SUITABILITY & LOCAL DISTRIBUTION POTENTIAL FOR OCCURRENCE CALIFORNIA RARE PLANT RANK SPECIES Androsace elongata ssp. acuta California androsace None CEQA 4.2 Chaparral, cismontane woodland, coastal scrub, and valley and foothill grassland. Species is highly localized and often overlooked. Known from ALA, CCA, COL, FRE, GLE, KRN, LAX, MER, SBD, SBT, SCL, SDG, SIS, SJQ, SLO, SMT, STA, and TEH from 150-1,200 meters. March-June annual herb No suitable vegetation associations present. Nearest recorded herbarium collections are from Mt. Diablo State Park, 10 miles southwest. Not Expected Anomobryum julaceum Slender silver moss None CEQA 2.2 Occurs in broadleafed upland forest, lower montane coniferous forest, North Coast coniferous forest on damp rock and soil on outcrops, often on road cuts. Known from BUT, CCA, HUM, LAX, MPA, SBA, SCR, SHA, and SON counties at an elevation of 100-1000 meters. Wet Season moss No suitable vegetation associations present. The nearest recorded CNDDB occurrence is a non-specific occurrence in Mt. Diablo State Park, 10.15 miles to the southwest (EONDX #65107). None Arabis blepharophylla Coast rock cress None CEQA 4.3 Occurs in broadleaved upland forest, coastal bluff scrub, coastal prairie, and coastal scrub. Known from CCA, MNT, MRN, SCR, SFO, SMT, and SON counties between 3-1,100 meters. February-May perennial herb No suitable vegetation associations present. Nearest recorded herbarium collection is from the summit of Mt. Diablo State Park, 10 miles southwest (Accession # CAS531563). None Arctostaphylos auriculata Mt. Diablo manzanita None CEQA 1B.3 Covered Occurs in chaparral on sandstone substrate, and in cismontane woodland. Known only from Contra Costa County at elevations from 135-600 meters. Known from fewer than 20 occurrences. January-March shrub (evergreen) No suitable vegetation associations or substrate present. Would have been detectable during the March 2013 site visit. Nearest CNDDB occurrence is a specific location 4.50 miles to the southwest in Black Diamond Mines Regional park (EONDX #41704). Absent Arctostaphylos manzanita ssp. laevigata Contra Costa manzanita None CEQA 1B.2 Occurs in chaparral on rocky substrates. Known only from Contra Costa County at elevations from 500-1,100 meters. January-February shrub (evergreen) No suitable vegetation associations or substrate present. Would have been detectable during the March 2013 site visit. Nearest CNDDB occurrence is a specific location 5.30 miles to the southwest at Black Diamond Mines Regional Preserve (EONDX #42177). Absent Astragalus tener var. tener Alkali milk-vetch None CEQA 1B.2 No Take Occurs on alkaline substrates in playas, valley and foothill grassland on adobe clay, and vernal pools. Known from ALA, MER, NAP, SOL and YOL counties between 1-60 meters. Presumed extirpated from CCA, MNT, SBT, SCL, SFO, SJQ, SON, and STA counties. March-June annual herb Although suitable vegetation associations are present, this species does not occur in riverine habitat. Alkali grassland and alkali wetland on site are dominated by dense saltgrass instead of a mosaic of annual grasses which this species prefers. Nearest recorded CNDDB occurrence is a specific location 6.30 miles northwest in the Montezuma Hills (EONDX #4693). Not Expected Appendix C Special-Status Plant Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 90 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT PREFERENCES, DISTRIBUTION INFORMATION, & ADDITIONAL NOTES* FLOWERING PHENOLOGY/ LIFE FORM HABITAT SUITABILITY & LOCAL DISTRIBUTION POTENTIAL FOR OCCURRENCE Atriplex cordulata var. cordulata Heartscale None CEQA 1B.2 Occurs in chenopod scrub, meadows and seeps, valley and foothill grassland on sandy, saline or alkaline substrates from 1-375 meters elevation. Known from ALA, CCA, BUT, FRE, GLE, KRN, MAD, MER, SLO, SOL, and TUL counties between 1-375. Presumed extirpated from SJQ, STA, and YOL counties. April-October annual herb Suitable vegetation associations are present. The nearest herbarium record (Accession #CHSC98937) is from Briones Valley. Not Observed Would have been detectable during August 2013 survey. Atriplex depressa Brittlescale None CEQA 1B.2 Covered Occurs in chenopod scrub, meadows and seeps, playas, valley and foothill grassland, and vernal pools on alkaline clay substrates. Known from ALA, CCA, COL, FRE, GLE, MER, SOL, STA, TUL, and YOL counties at an elevation of 1-320 meters. May-October annual herb Suitable vegetation associations are present. Nearest recorded CNDDB occurrence is a non-specific location 5.6 miles to south adjacent to Sand Creek (EONDX #60527). Not Observed Would have been detectable during August 2013 survey. Atriplex joaquiniana San Joaquin spearscale None CEQA 1B.2 Covered Occurs in chenopod scrub, meadows and seeps, playas, and valley and foothill grassland on alkaline substrates from 1-835 meters elevation. Known from ALA, CCA, COL, FRE, GLE, MER, MNT, NAP, SBT, SOL, YOL, and possibly SLO counties. Presumed extirpated from SCL, SJQ, and TUL counties. April-October annual herb Suitable vegetation associations are present. Nearest recorded CNDDB occurrence is a specific location 5.6 miles south near Antioch (EONDX #9591). Not Observed Would have been detectable during August 2013 survey. Blepharizonia plumosa Big tarplant None CEQA 1B.1 Covered Occurs in valley and foothill grassland. Known from ALA and CCA, KRN, MNT, SBT, SJQ, SLO, and STA counties between 30-505 meters. Presumed extirpated in SOL county. Recognized as Blepharizonia plumose ssp. plumose in TJM. July-October annual herb Suitable vegetation associations present, however study area is outside of elevation range for this taxon and the study area does not include the preferred Altamont soil type of this species. Nearest recorded CNDDB occurrences is a non-specific historic location 1.25 miles to the east near Antioch (EONDX #67189). Not Expected Calandrinia breweri Brewer’s calandrinia None CEQA 4.2 Occurs in sandy or loamy, disturbed sites and burns in chaparral and coastal scrub. Known from CCA, LAX, MEN, MNT, MPA, MRN, NAP, ORA, RIV, SBA, SBD, SCL, SCR, SCZ, SDG, SHA, SLO, SMT, SON,SRO, and VEN counties from 10 - 1220 meters in elevation. March-June annual herb No suitable vegetation associations present. Nearest known herbarium collection is in Markley Canyon approximately 3 miles southwest (Accession #UC765774). None California macrophylla Round-leaved filaree None CEQA 1B.1 Covered Occurs in cismontane woodland, valley and foothill grassland on clay soils. Known from ALA, CCA, COL, FRE, GLE, KNG, KRN, LAK, LAS, LAX, MER, MNT, NAP, RIV, SBA, SBT, SDG, SJQ, SLO, SMT, SOL, STA, THE, VEN, and YOL counties between 15-1,200 meters. Presumed extirpated from SCZ Island. Recognized as Erodium macrophyllum in TJM. March-May annual Herb Although suitable vegetation associations are present, the study area lacks heavy clay soils that support this species. Nearest known CNDDB occurrence is a non-specific historic occurrence 1.25 miles east near Antioch (EONDX #45828). Not Expected Appendix C Special-Status Plant Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 91 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT PREFERENCES, DISTRIBUTION INFORMATION, & ADDITIONAL NOTES* FLOWERING PHENOLOGY/ LIFE FORM HABITAT SUITABILITY & LOCAL DISTRIBUTION POTENTIAL FOR OCCURRENCE Calochortus pulchellus Mt. Diablo fairy-lantern None CEQA 1B.2 Covered Occurs in chaparral, cismontane woodland, riparian woodland, and valley and foothill grassland. Known from ALA, CCA, and SOL counties between 30-840 meters. April-June perennial herb (bulbiferous) Although suitable vegetation associations are present, this taxon occurs on the ecotone of listed associations. Study area is outside of elevation range for this taxon which is restricted to Mount Diablo and its foothills. Nearest recorded CNDDB occurrence is a specific location 8.15 miles southwest near North Peak (EONDX #29946). Not Expected Campanula exigua Chaparral harebell None CEQA 1B.2 Occurs on rocky sites, usually on serpentinite, in chaparral. Known from ALA, CCA, SBT, SCL, and STA counties between 275-1,250 meters. May-June annual herb No suitable vegetation associations or preferred substrate present. Study area is also outside of elevation range for this taxon. Nearest CNDDB occurrence is a non-specific location 9.0 miles to the southwest in Mt. Diablo State Park (EONDX #56428). None Centromadia parryi subsp. congdonii Congdon’s tarplant None CEQA 1B.2 Occurs in alkaline valley and foothill grassland. Known from ALA, CCA, MNT, SCL, SLO, and SMT counties between 1-230 meters. Presumed extirpated from SCR and SOL counties. Recognized as Hemizonia parryi subsp. congdonii in TJM June-November annual herb Suitable vegetation associations are present. Nearest recorded CNDDB occurrence (EONDX #84658) is 10 miles east near Oakley where plants were present in non-native grassland along an irrigation canal. Not Observed Would have been detectable during August 2013 survey. Centromadia parryi ssp. parryi Pappose tarplant None CEQA 1B.2 Occurs most often on alkaline substrates in chaparral, coastal prairie, coastal salt marshes and swamps, and mesic valley and foothill grassland. Known from BUT, COL, GLE, LAK, NAP, SMT, SOL, and SON counties between 2-420 meters. Recognized as Hemizonia parryi ssp. parryi in TJM. May-November annual herb Suitable vegetation associations are present. Nearest CNDDB occurrence is a non-specific location 10.30 miles to the north near Birds Landing (EONDX #71416). Not Observed Would have been detectable during August 2013 survey. Chloropyron molle ssp. hispidum Hispid bird’s-beak None CEQA 1B.1 Occurs on alkaline substrates in meadows and seeps, playas, and valley and foothill grassland. Known from ALA, FRE, KRN, MER, PLA, and SOL counties from between 1-155 meters. Apparently extirpated from much of the lower San Joaquin Valley. June-September annual herb (hemiparasitic) Suitable vegetation associations are present. The nearest CNDDB occurrence is a specific location 16.5 miles north near Denverton (EONDX #17844). Not Observed Would have been detectable during 2013 survey. Cicuta maculata var. bolanderi Bolander’s water hemlock None CEQA 2.1 Occurs in coastal, fresh or brackish water marshes and swamps. Known from CCA, MRN, SAC, and SOL counties and from Arizona, New Mexico, and Washington from 0-200 meters. Presumed extirpated in LAX, SBA, and SLO counties. July-September perennial herb Suitable vegetation associations present. Nearest recorded CNDDB occurrence is a non-specific location 2.5 miles northwest on Brown’s Island (EONDX #75858). Not Observed Would have been detectable during 2013 surveys. Appendix C Special-Status Plant Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 92 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT PREFERENCES, DISTRIBUTION INFORMATION, & ADDITIONAL NOTES* FLOWERING PHENOLOGY/ LIFE FORM HABITAT SUITABILITY & LOCAL DISTRIBUTION POTENTIAL FOR OCCURRENCE Cryptantha hooveri Hoover’s cryptantha None CEQA 1A Occurs on inland dunes and sandy valley and foothill grassland between 9-150 meters. Known from KRN County. Presumed extirpated in CCA, MAD, and STA counties. Last seen in 1939. April-May annual herb No suitable dune habitat or sandy valley and foothill grassland habitat present. Nearest recorded CNDDB occurrence is presumed extirpated and is 1.25 miles east near Antioch (EONDX #57196). None Delphinium californicum var. interius Hospital Canyon larkspur None CEQA 1B.2 Occurs in openings in chaparral and mesic cismontane woodland. Known from ALA, CCA, MER, SBT, SCL, SJQ, and STA counties from between 230-1,095 meters. April-June perennial No suitable vegetation associations present. The nearest CNDDB location is a non-specific location 9.0 miles southwest in Donner Canyon (EONDX #15178). None Didymodon norrisii Norris’ beard moss None CEQA 2.2 Occurs on intermittently mesic rock in cismontane woodland and lower montane coniferous forest. Known from BUT, CCA, COL, HUM, LAK, MAD, MNT, MPA, NEV, PLU, SBT, SCR, SIE, TEH, TUL, and TUO counties between 600-1,973 meters. Moss wet season No suitable vegetation associations present. The nearest recorded CNDDB occurrence is a non-specific location 12.5 miles to the southwest in Mt. Diablo State Park (EONDX #65401). None Downingia pusilla Dwarf downingia None CEQA 2.2 Occurs in mesic sites in valley and foothill grassland and vernal pools. Known from FRE, MER, NAP, PLA, SAC, SJQ, SOL, SON, STA, TEH, and YUB counties from between 0-10 meters. March-May annual herb No suitable vegetation associations present. Nearest recorded CNDDB occurrence is a specific location 6.30 miles northwest in vernal pools in Solano County (EONDX #4990). None Eriastrum brandegeeae Brandegee’s eriastrum None CEQA 1B.2 Occurs on volcanic or sandy substrates in chaparral and cismontane woodland. Known from COL, GLE, LAK, SCL, SHA, SMT, THE, and TRI counties between 305-1,030 meters. Identity of CCA occurrence needs confirmation. April-August annual herb No suitable vegetation associations present. Nearest recorded CNDDB occurrence is a non-specific location 10.30 miles at Lime Ridge (EONDX #57209). None Eriogonum nudum var. psychicola Antioch Dunes buckwheat None CEQA 1B.1 Occurs on inland dunes. Known from only a single occurrence in the Antioch Dunes in CCA County between 0-20 meters. July-October perennial herb No suitable vegetation associations or appropriate substrate are present. This taxon is only known from the Antioch Dunes which are 1.5 miles east (EONDX #82562). None Eriogonum truncatum Mt. Diablo buckwheat None CEQA 1B.1 No Take Occurs on sandy sites in chaparral, coastal scrub, and valley and foothill grassland. Known from ALA and CCA counties between 3-350 meters. Presumed extirpated from SOL County. Rediscovered in May 2005, now known from one extant natural occurrence. April-September annual herb Although suitable vegetation associations are present, this taxon occurs on the ecotone of listed associations and at higher elevations locally. Nearest recorded CNDDB occurrence is an historic collection 1.25 miles east near Antioch (EONDX #60625). Not Expected Eschscholzia rhombipetala Diamond-petaled California poppy None CEQA 1B.1 No Take Occurs on alkaline and clayey valley and foothill grassland between 0-975 meters. Known from ALA, SJQ, and SLO counties. Presumed extirpated from CCA, COL, and STA counties. March-April annual herb Although suitable vegetation associations are present, study Alkali grassland on site are dominated by dense saltgrass instead of a mosaic of annual grasses and open soil which this species prefers. The nearest CNDDB occurrence is a non-specific occurrence 1.25 miles east near Antioch (EONDX #21507). Not Expected Appendix C Special-Status Plant Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 93 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT PREFERENCES, DISTRIBUTION INFORMATION, & ADDITIONAL NOTES* FLOWERING PHENOLOGY/ LIFE FORM HABITAT SUITABILITY & LOCAL DISTRIBUTION POTENTIAL FOR OCCURRENCE Fritillaria agrestis Stinkbells None CEQA 4.2 Chaparral, cismontane woodland, piñyon and juniper woodland and valley and foothill grassland, on clay or sometimes serpentinite. Known from ALA, CCA, FRE, KRN, MEN, MER, MNT, MPA, PLA, SAC, SBA, SBT, SCL, SLO, STA, TUO, VEN, and YUB counties between 10-1,555 meters. Presumed extirpated from SCR and SMT counties. March-June perennial herb (bulbiferous) Suitable vegetation associations present. Would have been detectable during the March 2013 site visit. The nearest recorded CNDDB occurrence is a specific location 4.75 miles south in north Livermore Valley (EONDX #9391). Absent Fritillaria liliacea Fragrant fritillary None CEQA 1B.2 Occurs in cismontane woodland, coastal prairie, coastal scrub, valley and foothill grassland near the coast, on clay or serpentinite. Known from ALA, CCA, MNT, MRN, SBT, SCL, SFO, SMT, SOL and SON counties between 3-410 meters. February-April perennial herb (bulbiferous) Suitable vegetation associations present. Would have been detectable during the March 2013 site visit. Nearest recorded CNDDB occurrence is a specific location 6.80 miles northwest in Solano County (EONDX #5849). Absent Galium andrewsii subsp. gatense Phlox-leaf serpentine bedstraw None CEQA 1B.2 Occurs in serpentinite, rocky soils in chaparral, cismontane woodland, and lower montane coniferous forest. Known from ALA, CCA, COL, FRE, LAX, MNT, SBT, SCL, and SLO counties between 150 - 1450 meters. April-July perennial herb No suitable vegetation associations are present. Study area is also outside of elevation range for this taxon. None Helianthella castanea Diablo helianthella None CEQA 1B.2 Covered Occurs in broadleaved upland forest, chaparral cismontane woodland, coastal scrub, riparian woodland, and valley and foothill grassland. Known from ALA, CCA, SDG, and SMT counties. Presumed extirpated from MRN and SFO counties. Recorded from between 60-1,300. March-June perennial herb Although suitable vegetation associations are present, this taxon occurs on the ecotone of listed associations. Study area is also outside of elevation range for this taxon. Nearest recorded CNDDB occurrence is specific location 4.4 miles southwest within Black Diamond Mines Regional Preserve (# 1769). Not Expected Hesperevax caulescens Hogwallow starfish None CEQA List 4.2 Occurs in clayey and mesic valley and foothill grassland and shallow vernal pools between 0-505 meters. Known from ALA, AMA, BUT, CCA, COL, FRE, GLE, KRN, MER, MNT, SAC, SJQ, SLO, SOL, STA, SUT, TEH, and YOL counties. Presumed extirpated from NAP and SDG counties. March-June annual herb Although suitable vegetation associations are present, study area lacks suitable alkaline characteristics and vernal hydrology in non-riverine habitat. Alkali grassland and alkali wetland on site are dominated by dense saltgrass instead of a mosaic of annual grasses and open soil which this species prefers. Nearest herbarium collection is from Antioch, with no other details listed (Accession # JEPS29512). Not Observed Would have been detectable during August 2013 survey. Hesperolinon breweri Brewer’s western flax None CEQA 1B.2 Covered Occurs in chaparral, cismontane woodland, and valley and foothill grassland, usually on serpentinite, at elevations from 30 to 900 meters. Known from CCA, NAP, and SOL counties. May-July annual herb Although suitable vegetation associations are present, this taxon occurs on the ecotone of listed associations. Study area is also outside of elevation range for this taxon. Nearest recorded CNDDB occurrence is a non-specific historic location 1.25 miles east near Antioch (# 32216). Not Expected Appendix C Special-Status Plant Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 94 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT PREFERENCES, DISTRIBUTION INFORMATION, & ADDITIONAL NOTES* FLOWERING PHENOLOGY/ LIFE FORM HABITAT SUITABILITY & LOCAL DISTRIBUTION POTENTIAL FOR OCCURRENCE Hibiscus lasiocarpos var. occidentalis Woolly rose-mallow None CEQA 2.2 Occurs in marshes and swamps. Known from BUT, CCA, COL, GLE, SAC, SJQ, SOL, SUT, and YOL counties from between 0-120 meters. June-September perennial rhizomatous herb aquatic, emergent Suitable vegetation associations and appropriate hydrologic characteristics present. Nearest recorded CNDDB occurrence is a specific location 8.9 miles east on an island in Dutch Slough west of Jersey Island Slough (EONDX #6299). 25-50 plants were observed in 1992. Not Observed Would have been detectable during 2013 surveys. Isocoma arguta Carquinez goldenbush None CEQA 1B.1 Occurs in valley and foothill grassland, often on alkaline soils. Known only from SOL County from between 1-20 meters elevation. August-December perennial shrub Although suitable vegetation associations are present, study area lacks suitable upland alkaline characteristics. At a minimum, vegetative material would have been detectable during the March 2013 site visit. Nearest recorded CNDDB occurrence is a non-specific location 8.0 miles north in Solano County, in the Montezuma Hills (EONDX #42728). Has not been recorded from Contra Costa County. Absent Juglans hindsii Northern California black walnut None CEQA 1B.1 Occurs in riparian forest and riparian woodland. Known from CCA from NAP counties between 0-440 meters. Only one confirmed, native occurrence appears viable as of 2003. Possibly occurs in LAK County. Presumed extirpated from SAC, SOL, and YOL counties. Recognized as Juglans californica var. hindsii in TJM. April-May deciduous tree Suitable vegetation associations are present, however would have been detectable during the March 2013 site visit. Nearest recorded CNDDB occurrence is a non-specific location 17.75 miles southwest in Lafayette (EONDX #12147). Absent Lathyrus jepsonii var. jepsonii Delta tule pea None CEQA 1B.2 Occurs in freshwater and brackish marshes. Known from ALA, CCA, NAP, SAC, SJQ, and SOL counties from 0-4 meters. Presumed extirpated from SCL county. May-September perennial herb Suitable vegetation associations and appropriate hydrologic characteristics present. Nearest recorded CNDDB occurrence is a specific location 0.3 miles north near Antioch Point on the south side of the San Joaquin River (EONDX #84279). Not Observed Would have been detectable during 2013 surveys. Legenere limosa Legenere None CEQA 1B.1 Occurs in vernal pools. Known from ALA, LAK, NAP, PLA, SAC, SCL, SHA, SJQ, SMT, SOL, SON, THE, and YUB counties from between 1-880 meters. Presumed extirpated from STA County. April-June annual herb No suitable vegetation associations or vernal hydrology present. The nearest CNDDB location is a specific location 14.5 miles north near Denverton (EONDX #17381). None Lessingia hololeuca Woolly-headed lessingia None CEQA 3 Occurs in clay or serpentine substrates in broadleafed upland forest, coastal scrub, lower montane coniferous forest, and valley and foothill grassland. Known from ALA, MNT, MRN, NAP, SCL, SMT, SOL, SON, and YOL counties between 15-305 meters. June-October annual herb Although suitable vegetation associations are present, the preferred substrate is absent. Study area is also outside of elevation range for this taxon. The nearest herbarium collection is recorded from near Rio Vista (Accession # POM179721). Not Expected Appendix C Special-Status Plant Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 95 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT PREFERENCES, DISTRIBUTION INFORMATION, & ADDITIONAL NOTES* FLOWERING PHENOLOGY/ LIFE FORM HABITAT SUITABILITY & LOCAL DISTRIBUTION POTENTIAL FOR OCCURRENCE Limosella australis Delta mudwort None CEQA 2.1 Occurs in marshes and swamps and riparian scrub, usually on mud banks, between 0-3 meters. Known from CCA, SAC, SJQ, and SOL counties. Native status in California is inconclusive; definitive study needed. May-August perennial herb (stoloniferous) Suitable vegetation associations and appropriate hydrologic characteristics typical of Delta waters are present. Nearest recorded CNDDB occurrence is a non-specific location 0.7 miles northwest near the Los Medanos wasteway outfall (EONDX #50169). Not Observed Would have been detectable during 2013 surveys. Madia radiata Showy madia None CEQA 1B.1 Covered Occurs in cismontane woodland and valley and foothill grassland between 25-900 meters. Known from FRE, KRN, SBT, SLO, and STA counties. Presumed extirpated from CCA, KNG, MNT, SBA, and SJQ counties. March-May annual herb Suitable vegetation associations present, however study area is outside of elevation range for this taxon. Nearest recorded CNDDB occurrence is a non-specific location 4.80 miles southeast near Lone Tree Valley (EONDX #6753). Not Expected Malacothamnus hallii Hall’s bush mallow None CEQA 1B.2 Occurs in chaparral and coastal scrub at elevations between 10-760 meters. Known from CCA, MEN, MER, SCL, SMT, and STA counties. May-October perennial shrub (evergreen) No suitable vegetation associations present. At a minimum, vegetative material would have been detectable during the March 2013 site visit. Nearest recorded CNDDB occurrence is a non-specific location 9.4 miles southwest in Mt. Diablo State Park (EONDX #63281). Absent Monolopia gracilens Woodland woollythreads None CEQA 1B.2 Occurs on serpentinitic sites in openings of broadleafed upland forest, chaparral, cismontane woodland, North Coast coniferous forest, and valley and foothill grassland. Known from ALA, CCA, MNT, SCL, SCR, SLO, and SMT counties between 100-1,200 meters. March-July annual herb Although suitable vegetation associations are present the preferred substrate is absent. Nearest recorded CNDDB occurrence is a non-specific location 9.4 miles southwest in Mt. Diablo State Park (EONDX #80193). Not Expected Myosurus minimus ssp. apus Little mousetail None CEQA 3.1 Occurs in valley and foothill grassland and vernal pools on alkaline substrates. Known from ALA, CCA, COL, LAK, MER, RIV, SBD, SDG, SOL, TUL, and YOL counties, Baja California and Oregon from 20-640 meters elevation. March-June annual herb Although suitable vegetation associations are present, this species does not occur in riverine habitat. Alkali grassland and alkali wetland on site are dominated by dense saltgrass instead of a mosaic of annual grasses and open soil which this species prefers. The nearest recorded occurrence is a non-specific location from the CNPS Inventory on the Clifton Court Forebay quad (463D). Not Expected Navarretia gowenii Lime Ridge navarretia None CEQA 1B.1 Occurs on chaparral. Known only from four occurrences in CCA and STA counties between 180-305 meters. May-June annual herb No suitable vegetation associations present. Nearest recorded CNNDB occurrence is a specific location 10.75 miles southwest at Lime Ridge (EONDX #72962). None Navarretia nigelliformis subsp. nigelliformis Adobe navarretia None CEQA 4.2 Covered Occurs in vernally mesic valley and foothill grassland and vernal pools, on serpentine or clay substrates at elevations between 100-1,000 meters. Known from ALA, BUT, CCA, COL, FRE, KRN, MER, MNT, PLA, SUT, and TUL counties. April-June annual herb Although suitable vegetation associations are present the study area lacks the preferred substrates and is outside of elevation range for this taxon. Nearest recorded herbarium record (Accession # UC126029) is a historic collection from near Antioch. Not Expected Appendix C Special-Status Plant Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 96 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT PREFERENCES, DISTRIBUTION INFORMATION, & ADDITIONAL NOTES* FLOWERING PHENOLOGY/ LIFE FORM HABITAT SUITABILITY & LOCAL DISTRIBUTION POTENTIAL FOR OCCURRENCE Navarretia nigelliformis subsp. radians Shining navarretia None CEQA 1B.2 Occurs in valley and foothill grassland, cismontane woodland, and vernal pools, sometimes on clay substrates at elevations between 76-1000 meters. Known from ALA, CCA, COL, FRE, MAD, MER, MNT, SBT, SJQ, and SLO counties. April-June annual herb Although suitable vegetation associations are present the study area is outside the elevation range for this taxon. Nearest recorded CNNDB occurrence is a non-specific location 12 miles southwest near Curry Point on Mt. Diablo (EONDX #84667). Not Expected Phacelia phacelioides Mt. Diablo phacelia None CEQA 1B.2 Occurs on rocky substrates in chaparral and cismontane woodland. Known from CCA, SBT, SCL, and STA counties between 500-1,370 meters. April-May annual herb No suitable vegetation associations present. Study area is also outside of elevation range for this taxon. Nearest recorded CNNDB occurrence is a non-specific location 9.30 miles southwest in Mt. Diablo State Park (EONDX #24015). None Plagiobothrys hystriculus Bearded popcorn-flower None CEQA 1B.1 Occurs in valley and foothill grassland (often mesic), vernal pool margins, often vernal swales. Known only from SOL County from between 0-52 meters elevation. April-May annual herb Although suitable vegetation associations are present, appropriate vernal hydrology is absent. This taxon has also never been recorded from CCA County. Nearest recorded CNNDB occurrence is in the Montezuma Hills (EONDX #41667). Not Expected Potamogeton zosteriformis Eel-grass pondweed None CEQA 2.2 Occurs in freshwater marshes and swamps. Known from CCA, LAK, LAS, MOD, and SHA counties and Idaho, Oregon, Utah, and Washington from 0-1,860 meters elevation. June-July annual herb (aquatic) Although suitable vegetation associations are present, appropriate hydrologic characteristics, such as still, open water are not present. Nearest recorded CNDDB occurrence is a non-specific location 12.5 northeast on Webb Island in the Sacramento Delta, based on a 1949 collection (EONDX #50796). Not Expected Sagittaria sanfordii Sanford's arrowhead None CEQA 1B.2 Occurs in freshwater marshes and swamps (shallow freshwater). Known from BUT, DNT, ELD, FRE, MER, MPA, PLA, SAC, SBD, SHA, SJQ, SOL, and THE counties from 0 to 650 meters in elevation. Presumed extirpated from ORA and VEN counties. May-October perennial herb (rhizomatous) Although suitable vegetation associations are present, appropriate hydrologic characteristics, such as still, open water are not present. Nearest recorded CNDDB occurrence is a non-specific location 14 miles northeast on the south side of the Sacramento River near Ida Island (EONDX #84309). Not Expected Scutellaria lateriflora Side-flowering skullcap None CEQA 2.2 Occurs in mesic meadows and seeps and marshes and swamps. Known from INY, SAC, and SJQ counties between 0-500 meters. July-September perennial herb (rhizomatous) Suitable vegetation associations and appropriate hydrologic characteristics typical of Delta waters are present. Taxon has not been recorded from CCA County. Nearest recorded CNDDB occurrence is a non-specific location 17 miles northeast near Bouldin Island (EONDX #32121). Not Observed Would have been detectable during 2013 surveys. Senecio aphanactis Rayless ragwort None CEQA 2.2 Occurs on coastal scrub, chaparral, and cismontane woodland on alkaline soils. Known from ALA, CCA, FRE, LAX, MER, MNT, ORA, RIV, SBA, SCL, SCT, SCZ, SDG, SLO, SOL, SRO, and VEN counties between 15-800 meters. January-April annual herb No suitable vegetation associations present. Nearest recorded CNDDB occurrence is a non-specific historic location 5.2 miles southwest in Black Diamond Mines Regional Preserve (EONDX #264). None Appendix C Special-Status Plant Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 97 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT PREFERENCES, DISTRIBUTION INFORMATION, & ADDITIONAL NOTES* FLOWERING PHENOLOGY/ LIFE FORM HABITAT SUITABILITY & LOCAL DISTRIBUTION POTENTIAL FOR OCCURRENCE Streptanthus albidus ssp. peramoenus Most-beautiful jewel flower None CEQA 1B.2 Occurs on serpentinite in chaparral, cismontane woodland, and valley and foothill grassland. Known from ALA, CCA, MNT, SCL, and SLO between 94-1,000 meters. March-October annual herb Although suitable vegetation associations are present, suitable substrate is absent. Study area is also outside of elevation range for this taxon. Nearest recorded CNDDB occurrence is a non-specific location 9.70 miles southwest near Perkins Canyon (EONDX #63269). Not Expected Streptanthus hispidus Mt. Diablo jewel-flower None CEQA 1B.3 Occurs on rocky sites in chaparral and valley and foothill grassland. Known from fewer than 15 occurrences only in CCA from between 365-1,200. March-June annual herb Although suitable vegetation associations are present, suitable substrate is absent. Study area is also outside of elevation range for this taxon. Nearest recorded CNDDB occurrence is a specific location 8.75 miles southwest in Mt. Diablo State Park (EONDX #4877). Not Expected Stuckenia filiformis Slender-leaved pondweed None CEQA 2.2 Occurs in assorted shallow freshwater marshes and swamps. Known from ALA, BUT, CCA, ELD, LAS, MER, MNO, MOD, MPA, PLA, SHA, SIE, SMT, SOL, and SON between 300-2,150 meters. Possibly occurs in SCL. May-July rhizomatous herb (aquatic) Although suitable vegetation associations are present, appropriate hydrologic characteristics, such as still, open freshwater, are absent. Nearest recorded CNDDB occurrence is a non-specific location 12.40 southwest near Pine Creek (EONDX #74339). Not Expected Symphyotrichum lentum Suisun Marsh aster None CEQA 1B.2 Occurs in brackish and freshwater marshes and swamps. Known from CCA, MRN, NAP, SAC, SJQ, SOL, and SON counties between 0-3 meters. Recognized as Aster lentus in TJM. Intergrades into A. chilensis. USFWS uses the name A. chilensis var. lentus. May-November perennial herb (rhizomatous) Suitable vegetation associations and appropriate hydrologic characteristics typical of Delta waters are present. Nearest recorded CNDDB occurrence is a specific location 0.5 miles northwest between Pittsburg and Antioch points (EONDX #7640). Not Observed Would have been detectable during 2013 surveys. Trifolium hydrophilum Saline clover None CEQA 1B.2 Occurs on mesic and alkaline sites in marshes and swamps and valley and foothill grassland and vernal pools. Known from ALA, MNT, NAP, SBT, SCL, SCR, SLO, SMT, SOL and SON counties between 0-300 meters. Possibly occurs in COL County. April-June annual herb Although suitable vegetation associations are present, this species does not occur in riverine habitat. Alkali grassland and alkali wetland on site are dominated by dense saltgrass instead of a mosaic of annual grasses which this species prefers. Nearest recorded CNDDB occurrence is a non-specific location 17 miles northwest near Benicis based on an historic collection (EONDX #84590). Not Expected Triquetrella californica Coastal triquetrella None CEQA 1B.2 Occurs on soil in coastal bluff scrub and coastal scrub. Known from CA, DNT, MEN, MRN, SDG, SFO, SMT, and SON counties between 10-100 meters. Moss wet season No suitable vegetation associations present. Nearest recorded CNDDB occurrence is a non-specific location 10.15 miles southwest near Mt. Diablo (EONDX #45728). None Appendix C Special-Status Plant Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 98 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT PREFERENCES, DISTRIBUTION INFORMATION, & ADDITIONAL NOTES* FLOWERING PHENOLOGY/ LIFE FORM HABITAT SUITABILITY & LOCAL DISTRIBUTION POTENTIAL FOR OCCURRENCE Tropidocarpum capparideum Caper-fruited tropidocarpum None CEQA 1B.1 No Take Occurs in valley and foothill grassland, often alkaline hills. Known from FRE, MNT, and SLO counties. Presumed extirpated from ALA, CCA, GLE, SCL, and SJQ counties between 1-455 meters. Rediscovered in 2000 on Ft. Hunter Liggett. March-April annual herb Although suitable vegetation associations are present, alkali grassland on site is dominated by dense saltgrass instead of a mosaic of annual grasses which this species prefers. Nearest recorded CNDDB occurrence is a historic non-specific location 7.70 miles southwest near Clayton (EONDX #20435). Not Expected Viburnum ellipticum Oval-leaved viburnum None CEQA 2.3 Occurs on chaparral, cismontane woodland, and lower montane coniferous forest. Known from CCA, FRE, ELD, GLE, HUM, MEN, NAP, SHA, and SON counties between 215-1,400 meters. May-June shrub (deciduous) No suitable vegetation associations present. Nearest recorded CNDDB occurrence is a non-specific location 9.6 miles southwest near Curry Canyon (EONDX #74275). Would have been detectable during March 2013 site visit. Absent 1Explanation of State and Federal Listing Codes and HCP/NCCP Coverage Federal listing codes: California listing codes: California Native Plant Society codes: FE Federally listed as Endangered SE State listed as Endangered 1A Presumed extinct in California FT Federally listed as Threatened ST State listed as Threatened 1B Rare or Endangered in California and elsewhere FPE Federally proposed for listing as Endangered SR State listed as Rare 2 Rare or Endangered in California, more common elsewhere FPT Federally proposed for listing as Threatened SCE State candidate for listing as Endangered 3 Plants for which we need more information - Review list FPD Federally proposed for delisting SCT State candidate for listing as Threatened 4 Plants of limited distribution - Watch list FC Federal candidate species (former Category 1 candidates) SC Species of Concern – No longer maintained by USFWS SLC Species of local concern or conservation importance – No longer maintained by USFWS California Native Plant Society Threat Codes: Survey Recommendation Determinations Based On .1 Seriously Endangered in California (over 80% of occurrences Threatened / high degree and immediacy of threat) - Observed phenology at the time of reconnaissance .2 Fairly Endangered in California (20-80% occurrences Threatened) - Seasonal weather patters .3 Not very Endangered in California (<20% of occurrences Threatened or no current threats known) - Collection dates of herbarium specimens Notes: CNPS List 1A and some List 3 plant species lacking any threat information receive no threat code extension. - Blooming times given by the CNPS Inventory CNPS R-E-D Codes have been discontinued East Contra Costa County Habitat Conservation Plan/Natural Community Conservation Plan (ECCCHCP?NCCP) includes special-status species designated as Covered or No-Take. To be a Covered Species, a species had to meet certain criteria about range, status, impact, and data. Certain species were considered extremely rare and fully protected and are designated No-Take Species. EONDX is the CNDDB Element Occurrence Index number which corresponds to unique records in the California Natural Diversity Database. Abbreviations:AMA Amador BUT Butte CAL Calaveras CCA Contra Costa CNDDB CA Natural Diversity Database CNPS CA Native Plant Society COL Colusa DNT Del Norte ELD El Dorado FRE Fresno GLE Glenn HUM Humboldt KRN Kern LAK Lake LAS Lassen LAX Los Angeles LCP Local Coastal Plan MAD Madera MOD Modoc MEN Mendocino MER Merced MNT Monterey MPA Mariposa MRN Marin NAP Napa NEV Nevada ORA Orange PLA Placer PLU Plumas RIV Riverside SAC Sacramento SBA Santa Barbara SBD San Bernardino SBT San Benito SCL Santa Clara SCR Santa Cruz SCT Santa Catalina Island SCZ Santa Cruz Island SDG San Diego SFO San Francisco SHA Shasta SIE Sierra SIS Siskiyou SJQ San Joaquin West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 99 SMI San Miguel Island SMT San Mateo SNI San Nicolas Island SOL Solano SON Sonoma SRO Santa Rosa Island TEH Tehama TJM The Jepson Manual TJMII The Jepson Manual, 2nd. Ed. TRI Trinity TUL Tulare VEN Ventura YOL Yolo YUB Yuba Appendix D Special-Status Fish and Wildlife Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 100 APPENDIX D SPECIAL-STATUS FISH AND WILDLIFE SPECIES KNOWN TO OCCUR OR POTENTIALLY OCCURRING IN THE PROJECT VICINITY SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT REQUIREMENTS & ADDITIONAL NOTES HABITAT SUITABILITY & LOCAL DISTRIBUTION OCCURRENCE POTENTIAL FEDERAL/STATE LISTED, PROPOSED, CANDIDATE AND/OR FULLY PROTECTED SPECIES INVERTEBRATES: Apodemia mormo langei Lange’s metalmark butterfly Fed: FE CA: SA Xerces-CI Inhabits stabilized dunes along the San Joaquin River; current distribution is restricted to the Antioch Dunes National Wildlife Refuge. Primary host plant for larvae and adults is the naked buckwheat (Eriogonum nudum var. auriculaturm). Adult flight season is August through September. No suitable habitat present. Host plant absent from the study area. The project is located outside of the species’ known range. Species is restricted to the Antioch Dunes National Wildlife Refuge. None Branchinecta conservatio Conservancy fairy shrimp Fed: FE, CH CA: SA Endemic to relatively large, highly turbid vernal pools, playas, lakes, and grassy swales in the Central Valley from 16 to 5,577 feet (5-1,700 meters) in elevation (59 FR 48136). Six disjunct populations reported from Vina Plains in Tehama and Butte counties; greater Jepson Prairie in Solano County; Sacramento NWR in Sacramento County; Tule Ranch portion of Yolo Basin Wildlife Area in Yolo County; Grasslands Ecological Area, Flying M Ranch, Ichord Ranch, and Virginia Smith Trust lands in Merced County, single location in Stanislaus County; and two locations in the Los Padres National Forest in Ventura County (59 FR 48136). Designated critical habitat encompasses 8 units totaling 161,786 acres in Butte, Colusa, Mariposa, Merced, Solano, Stanislaus, Tehama, and Ventura counties (71 FR 7118). No suitable habitat present. Study area lacks vernal pools, playas, lakes, or grassy swales. Project is not located within critical habitat. None Branchinecta longiantenna Longhorn fairy shrimp Fed: FE, CH CA: SA Species is extremely rare and endemic to small disjunct areas within Contra Costa, Alameda, Merced and San Luis Obispo counties. In the Livermore Vernal Pool Region of Alameda and Contra Costa counties, inhabits small, clear, sandstone outcrop vernal pools, but will inhabit seasonal pools with loam or sandy loam soils or shallow, alkaline pools (USFWS 2005). Inhabits larger and warmer grassland pools with clear to turbid water in the San Joaquin and Carrizo Vernal Pool Regions from 75-2,887 feet (23-880 meters) (USFWS 2005). No suitable habitat present. Study area lacks vernal pools. Project is not located within critical habitat. None Appendix D Special-Status Fish and Wildlife Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 101 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT REQUIREMENTS & ADDITIONAL NOTES HABITAT SUITABILITY & LOCAL DISTRIBUTION OCCURRENCE POTENTIAL Branchinecta lynchi Vernal pool fairy shrimp Fed: FT, CH CA: SA Inhabit clear to tea-colored freshwater vernal pools in grass or mud bottomed swales, or basalt flow depression pools in unplowed grasslands (59 FR 48136, Eriksen and Belk 1999). Thirty-two known populations in the Central Valley from Shasta to Tulare counties, and along the Central and South Coast Ranges from Solano to San Benito counties (59 FR 48136). Often occur in low densities and rarely co-occurs with other branchiopod species (Eng et al. 1990, Simovich et al. 1992). Designated critical habitat encompasses 35 units totaling 597,821 acres in Jackson County in Oregon, and Alameda, Amador, Butte, Contra Costa, Fresno, Kings, Madera, Mariposa, Merced, Monterey, Napa, Placer, Sacramento, San Benito, San Joaquin, Alameda, Amador, Butte, Contra Costa, Fresno, Kings, Madera, Mariposa, Merced, Monterey, Napa, Placer, Sacramento, San Benito, San Joaquin counties in California (71 FR 7118). Study area lacks vernal pools and playa pools. Species reported approximately 1 mile west along access road by railroad tracks in 1999 (EONDX #41660). Project is not located within critical habitat. Not expected Callophrys mossii bayensis San Bruno elfin butterfly Fed: FE CA: SA Xerces CI A small brownish butterfly that occurs in the vicinity of its larval host plant, stonecrop (Sedum spathulifolium). Flight period is late February to April. Range is restricted to small populations on north facing slopes in the fog belt in the coastal hills of the northern San Francisco Peninsula. No suitable habitat present within the study area. Host plant absent from the study area. The project is located outside of the species’ known range. None Desmocerus californicus dimorphus Valley elderberry longhorn beetle Fed: FT, CH CA: SA An elongate, red & black bodied beetle with long antenna measuring ½ to 1 inch in length. Endemic to the Central Valley of California in association with elderberry (Sambucus spp.). Eggs are laid in hollow stems measuring 2-8 inches in diameter at the base of the shrub; larva may stay in this stage for up to 2 years before transforming into adults. Active period for adults occurs from March to June. Adults and larvae feed exclusively on Sambucus spp. And exhibit preference for “stressed” elderberries. Presence often inferred based on oval exit holes created when individuals leave the inner shrub to mate and feed. Suitable habitat present; several Sambucus spp. host plants observed within the study area with exit holes. Species presumed to be the California elderberry longhorn beetle (Desmocerus californicus californicus) based on location. The project is located outside of the species’ known range. Project is not located within critical habitat. None Elaphrus viridis Delta green ground beetle Fed: FT, CH CA: SA A small brightly metallic green and bronze colored beetle measuring 0.25-inch. Inhabits grassland-playa-pool complexes in and around the Jepson Prairie in south-central Solano County. Active from February to mid-May. No suitable habitat present within the study area. The project is located outside of the species’ known range. Project is not located within critical habitat. None Lepidurus packardi Vernal pool tadpole shrimp Fed: FE, CH CA: SA A large, distinctive crustacean with an oval carapace and single, long pair of cercopods (59 FR 48136). Inhabits vernal pools and swales in the Sacramento Valley containing clear to highly turbid water; such pools are commonly found in grass bottomed swales of unplowed grasslands and are occasionally mud-bottomed and highly turbid (59 FR 48136). Designated critical habitat encompasses 18 units totaling 228,785 acres in Alameda, Amador, Butte, Colusa, Fresno, Kings, Madera, Mariposa, Merced, Sacramento, Shasta, Solano, Stanislaus, Tehama, Tulare, Yolo, and Yuba counties (71 FR 7118). Study area lacks vernal pools and playa pools. Nearest reported occurrence (EONDX 52749) located ~4 mi south in claypan vernal pool with vernal pool fairy shrimp in 2003 (CDFW 2013a). Project is not located within critical habitat. None Appendix D Special-Status Fish and Wildlife Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 102 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT REQUIREMENTS & ADDITIONAL NOTES HABITAT SUITABILITY & LOCAL DISTRIBUTION OCCURRENCE POTENTIAL Speyeria callippe callippe Callippe silverspot butterfly Fed: FE CA: SA Xerces-CI A medium-sized butterfly that is endemic to native grasslands with the host plant Johnny jump-up (Viola pedunculata). Violas typically grow on hilltops. The active adult period occurs between May and July. Current distribution is restricted to seven locals in San Mateo, Sonoma and Alameda counties. No suitable habitat present within the study area. Viola pedunculata host plant absent from the study area. Not reported from Contra Costa County (CDFW 2013a). None Syncaris pacifica California freshwater shrimp Fed: FE CA: SE Inhabits low elevation, i.e. less than 380 feet (116 meters), perennial and intermittent freshwater streams with structurally diverse pools and streambanks in Marin, Napa and Sonoma Counties. Requires high water quality with minimal pollution and high oxygen content. Outside species known range. Not reported from Contra Costa County (CDFW 2013a). None FISH: Acipenser medirostris Green sturgeon (southern DPS) Fed: FT, CH CA: SSC AFS-V The green sturgeon, southern DPS, is an anadromous fish that is found in marine waters from the Bering Sea to Ensenada, Mexico. The southern DPS includes all spawning populations south of the Eel River (exclusive), principally including the Sacramento River population; NMFS "Special Concern" designation refers to the northern DPS which includes spawning populations north of the Eel River (inclusive) (71 FR 17757). Locally, green sturgeon inhabit Suisun, San Pablo, and San Francisco bays, and coastal bays and estuaries from Monterey Bay north to Puget Sound. Spawning occurs in the Sacramento River between March and June; it may extend slightly longer, into July, in the Klamath River. Critical habitat includes coastal California waters from Monterey Bay, California, North to Cape Flattery, Washington; San Francisco Bay; Sacramento River and lower Feather River; Eastern reaches of the Sacramento-San Joaquin Delta; specified bays and estuaries in California, Oregon and Washington (74 FR 52300). Critical habitat does not include any freshwater tributaries feeding into these water bodies (74 FR 52300). No suitable habitat present within the study area. Study area is not located within southern DPS. Project is not located within critical habitat. None Eucyclogobius newberryi Tidewater goby Fed: FE, CH CA: SSC AFS-E A California endemic fish that inhabits brackish coastal lagoons, estuaries and marshes. Range extends from the Smith River in Del Norte County to Agua Hedionda Lagoon in San Diego County. Species is typically an annual species. The Greater Bay Area recovery unit extends from north of Bodega Head in Sonoma County to the Salinas River Valley in Monterey County (USFWS 2005e). Critical habitat is limited to Humboldt, Mendocino, Sonoma, Marin, San Mateo, Santa Cruz, Monterey, San Luis Obispo, Santa Barbara, Ventura and Los Angeles Counties in California (73 FR 5920). No brackish coastal lagoon, estuary and marsh habitat present within the study area. Project is not located within critical habitat. None Appendix D Special-Status Fish and Wildlife Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 103 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT REQUIREMENTS & ADDITIONAL NOTES HABITAT SUITABILITY & LOCAL DISTRIBUTION OCCURRENCE POTENTIAL Hypomesus transpacificus Delta smelt Fed: FT, CH CA: ST AFS-T Inhabits brackish water in the Sacramento-San Joaquin Delta. Known from Sacramento/San Joaquin Delta, Sacramento River as high as the confluence with the Feather River, Mokelumne River, Cache Slough, Montezuma Slough, San Pablo Bay, Suisun Bay, Suisun Marsh, Carquinez Strait, and Napa River and Marsh. Spawns in freshwater habitat from February to August in shallow water areas with submersed aquatic plants, suitable substrates and refugia. Important spawning habitat include Barker, Lindsey, Cache, Prospect, Georgiana, Beaver, Hog, and Sycamore sloughs and the Sacramento River in the Delta, and tributaries of northern Suisun Bay. Critical habitat includes: areas of all water and all submerged lands below ordinary high water and the entire water column bounded by and contained in Suisun Bay (including Grizzly and Honker Bays); Goodyear, Suisun, Cutoff, First Mallard and Montezuma sloughs; and the existing contiguous waters contained within the Delta (59 FR 65256). Suitable spawning and rearing habitat present within the study area especially the northernmost project area where West Antioch Creek enters the tidally influenced freshwater marsh. Project is within critical habitat and contains all four PCE’s: spawning habitat (PCE-1), larval and juvenile transport (PCE-2), rearing habitat (PCE-3), and adult migration (PCE-4). Possible Oncorhynchus kisutch Coho salmon Central California Coast ESU Fed: FE, CH CA: SE AFS-E An anadromous fish that typically spends 2 years in the ocean before returning to perennial freshwater streams to spawn. ESU includes all naturally spawned populations from Punta Gorda in northern California south to and including the San Lorenzo River in central California, as well as populations in tributaries to San Francisco Bay including Corte Madera and Mill Valley Creeks, excluding the Sacramento-San Joaquin River system, as well as four artificial propagation programs: the Don Clausen Fish Hatchery Captive Broodstock Program, Scott Creek/King Fisher Flats Conservation Program, Scott Creek Captive Broodstock Program, and the Noyo River Fish Station egg-take Program coho hatchery programs (70 FR 37160). Designated critical habitat includes all river reaches accessible to coho including water, substrate, and adjacent riparian zone of estuarine and riverine reaches from Punta Gorda south to San Lorenzo River in central California, including Arroyo Corte Madera Del Presidio and Corte Madera Creek, tributaries to San Francisco Bay (64 FR 24049). Critical habitat includes Mendocino, Marin, Napa, Sonoma, San Mateo, and Santa Cruz counties (64 FR 24049). Project is outside the designated Central California Coast ESU. Project is not located within critical habitat. None Appendix D Special-Status Fish and Wildlife Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 104 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT REQUIREMENTS & ADDITIONAL NOTES HABITAT SUITABILITY & LOCAL DISTRIBUTION OCCURRENCE POTENTIAL Oncorhynchus mykiss irideus Steelhead Central California Coast ESU Fed: FT, CH CA: AFS-T An anadromous fish that spend several years in the ocean; returning to freshwater rivers and tributaries to spawn and rear. Listing includes all naturally spawned anadromous steelhead populations below natural and manmade impassable barriers in California streams from the Russian River (inclusive) to Aptos Creek (inclusive), and the drainages of San Francisco, San Pablo, and Suisun Bays eastward to Chipps Island at the confluence of the Sacramento and San Joaquin Rivers (70 FR 37160). Tributary streams to Suisun Marsh including Suisun Creek, Green Valley Creek, and an unnamed tributary to Cordelia Slough (commonly referred to as Red Top Creek), excluding the Sacramento-San Joaquin River Basin, as well as two artificial propagation programs: the Don Clausen Fish Hatchery, and Kingfisher Flat Hatchery/ Scott Creek (Monterey Bay Salmon and Trout Project) steelhead hatchery programs (70 FR 37160). Designated critical habitat encompasses 1,465 miles streams, 386 square miles estuary habitat in Lake, Mendocino, Sonoma, Napa, Marin, San Francisco, San Mateo, Santa Clara, Santa Cruz, Alameda, Contra Costa, and San Joaquin counties (70 FR 52488). The Laguna de Santa Rosa, Santa Rosa, Berkeley, San Mateo Bayside, East Bay cities, Guadalupe River, Novato, Pinole, Suisun Creek, Benicia, Pittsburg, and Martinez watersheds, and Suisun Bay entire unit were excluded from the designation based on their potential economic impact (70 FR 52488). Primary constituent elements include: (1) freshwater spawning sites, (2) freshwater rearing sites, (3) freshwater migration corridors free of obstructions, (4) estuarine areas free of obstructions, and (5) nearshore marine areas free of obstructions (70 FR 52488). Project is outside the designated Central California Coast ESU. Project is not located within critical habitat. None Oncorhynchus mykiss irideus Steelhead California Central Valley DPS Fed: FT, CH CA: AFS-T An anadromous fish that spend several years in the ocean; returning to freshwater rivers to spawn and rear. Listing includes all naturally spawned anadromous steelhead populations (and their progeny) below natural and manmade impassable barriers in the Sacramento and San Joaquin Rivers and their tributaries, excluding steelhead from San Francisco and San Pablo Bays and their tributaries, as well as two artificial propagation programs: the Coleman NFH, and Feather River Hatchery steelhead hatchery programs (70 FR 37160). Designated critical habitat encompasses 2,308 miles streams, 254 square miles estuary habitat in Tehama, Butte, Glenn, Shasta, Yolo, Sacramento, Solano, Yuba, Sutter, Placer, Calaveras, San Joaquin, Stanislaus, Tuolumne, Merced, Alameda, Contra Costa counties (70 FR 52488). The North Diablo Range watershed and South San Francisco Bay entire unit were excluded from the designation based on their potential economic impact (70 FR 52488). Primary constituent elements include: (1) freshwater spawning sites, (2) freshwater rearing sites, (3) freshwater migration corridors free of obstructions, (4) estuarine areas free of obstructions, and (5) nearshore marine areas free of obstructions (70 FR 52488). Project is within the designated California Central Valley DPS. Suitable habitat present within the study area; however, species not reported from West Antioch Creek (Leidy 2007). Project is located within critical habitat. Not expected Appendix D Special-Status Fish and Wildlife Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 105 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT REQUIREMENTS & ADDITIONAL NOTES HABITAT SUITABILITY & LOCAL DISTRIBUTION OCCURRENCE POTENTIAL Oncorhynchus tshawytscha Chinook salmon Central Valley spring-run ESU Fed: FT, CH CA: ST AFS-T An anadromous fish that spends 1-3 years in the ocean and returns to perennial freshwater streams during the spring to spawn. ESU includes all naturally spawned populations of spring-run Chinook salmon in the Sacramento River and its tributaries to the Carquinez Strait, including the Feather River, as well as the Feather River Hatchery spring-run Chinook program (70 FR 37160). Juveniles rear in the Sacramento and San Joaquin Rivers and tributaries throughout the year. Designated critical habitat encompasses 1,158 miles streams, 254 square miles estuary habitat in Tehama, Butte, Glenn, Shasta, Yolo, Sacramento, Solano, Colusa, Yuba, Sutter, Trinity, Alameda, San Joaquin, and Contra Costa counties (70 FR 52488). The North Diablo Range and San Joaquin Delta watersheds and South San Francisco Bay entire unit were excluded from the designation based on their potential economic impact (70 FR 52488). Primary constituent elements include: (1) freshwater spawning sites, (2) freshwater rearing sites, (3) freshwater migration corridors free of obstructions, (4) estuarine areas free of obstructions, and (5) nearshore marine areas free of obstructions (70 FR 52488). Project is outside the designated Central Valley spring-run ESU. Project is not located within critical habitat. None Oncorhynchus tshawytscha Chinook salmon Sacramento River winter-run ESU Fed: FE, CH CA: SE AFS-E An anadromous fish that spends 1-3 years in the ocean and returns to perennial freshwater streams during the winter to spawn. ESU includes all naturally spawned populations of winter-run Chinook salmon in the Sacramento River and its tributaries downstream to the Carquinez Strait, as well as two artificial propagation programs: winter-run Chinook from the Livingston Stone National Fish Hatchery (NFH), and winter run Chinook in a captive broodstock program maintained at Livingston Stone NFH and the University of California Bodega Marine Laboratory (70 FR 37160). Migrates up Sacramento River to spawn primarily upstream of Red Bluff. Juveniles rear in the Sacramento River throughout the year. Designated critical habitat includes the waterways, bottom and water of the waterways and adjacent riparian zones of the: (1) the Sacramento River from Keswick Dam in Shasta County to Chipps Island in the Sacramento-San Joaquin Delta; (2) all waters from Chipps Island west to Carquinez Bridge, including Honker Bay, Grizzly Bay, Suisun Bay and Carquinez Strait; (3) all waters of San Pablo Bay west of Carquinez Bridge; and (4) all waters of San Francisco Bay north of the San Francisco/Oakland Bay Bridge from San Pablo Bay to the Golden Gate Bridge (58 FR 33212). Project is outside the designated Sacramento River winter-run ESU. Project is not located within critical habitat. None Appendix D Special-Status Fish and Wildlife Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 106 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT REQUIREMENTS & ADDITIONAL NOTES HABITAT SUITABILITY & LOCAL DISTRIBUTION OCCURRENCE POTENTIAL AMPHIBIANS: Ambystoma californiense California tiger salamander Central California DPS Fed: FT, CH CA: ST A large terrestrial salamander that inhabits seasonal/semi-permanent water sources (3-4 months in duration) and adjacent upland habitat with small fossorial mammal activity in lowland grasslands, oak savannah and mixed woodlands. Range includes the Central Valley and Central Coast ranges from Colusa County south to San Luis Obispo and Kern counties from sea level to 3,460 feet (1,054 meters) in elevation with two disjunct populations within Sonoma County and Santa Barbara County. Species have been documented traveling distances up to 1 mile (1.6 km) (Austin and Shaffer 1992). Designated critical habitat encompasses 199,109 acres in 20 counties and is grouped into 4 regions: Central Valley, Southern San Joaquin, East Bay and Central Coast (70 FR 49380). The East Bay Region includes Alameda County, south to Santa Benito and Santa Clara counties, and west to the eastern portions of San Joaquin and Merced counties (70 FR 49380). Primary constituent elements include: (1) standing bodies of fresh water that support inundation during winter rains and hold water for a minimum of 12 weeks in a year of average rainfall; (2) upland habitats adjacent and accessible to breeding ponds that contain small mammal burrows or other underground habitat; and (3) accessible upland dispersal habitat between occupied locations that allow for movement between such sites (70 FR 49380). No suitable habitat present within the study area. Species not reported north of State Route 4; nearest reported occurrence 1.3 miles to the southeast (EONDX #45811). Project is not located within designated critical habitat. None Rana draytonii California red-legged frog Fed: FT, CH CA: SSC A medium-sized frog that inhabits lowlands & foothills in or near permanent sources of deep water with dense, shrubby or emergent riparian vegetation up to 4,921 feet (1,500 meters) in elevation (Jennings and Hayes 1994, Bulger et al. 2003, Stebbins 2003). Range extends from Redding to Baja California, Mexico with hybridization occurring with the California red-legged frog from the Oregon border to Marin County. Breeding occurs between November and April in standing or slow moving water with emergent vegetation, such as cattails (Typha spp.), tules (Scirpus spp.) or overhanging willows (Salix spp.) (Hayes and Jennings 1988). Larvae undergo metamorphosis 3 ½ to 7 months following hatching (Jennings and Hayes 1984, 1994). Designated critical habitat encompasses 1,636,609 acres in 20 counties and is grouped into 4 regions: Central Valley, Southern San Joaquin, East Bay and Central Coast (75 FR 12816). The East Bay Region includes Alameda County, south to Santa Benito and Santa Clara counties, and west to the eastern portions of San Joaquin and Merced counties (75 FR 12816). Primary constituent elements include: (1) aquatic breeding habitat; (2) non-breeding aquatic and riparian habitat; (3) Upland habitats associated with riparian and aquatic habitat; and (4) dispersal habitat that comprising accessible upland or riparian habitat within and between occupied or previously occupied sites that are located within 1 mi (1.6 km) of each other, and that support movement between such sites (75 FR 12816). Suitable breeding and non-breeding aquatic habitat within study area in West Antioch Creek. Suitable upland and dispersal habitat within riparian corridor and adjacent ruderal grassland habitat types. Nearest reported occurrence located 1.8 to the southeast in Markley Canyon Creek in 2002 (EONDX #48404). No occurrences reported north of State Route 4; species unlikely to be present within study area. Project not located within critical habitat; approximately 1.6 miles north of the East San Francisco Bay core area and in the South and East San Francisco Bay recovery unit (USFWS 2002, 2006). Possible Appendix D Special-Status Fish and Wildlife Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 107 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT REQUIREMENTS & ADDITIONAL NOTES HABITAT SUITABILITY & LOCAL DISTRIBUTION OCCURRENCE POTENTIAL REPTILES: Masticophis lateralis euryxanthus Alameda whipsnake Fed: FT, CH CA: ST The Alameda whipsnake is a subspecies of the California whipsnake, Masticophis lateralis, which inhabits the foothills and mixed deciduous and pine forests of the Sierra Nevada and Coast Range mountains from Siskiyou County in northern California to the flatland desert in Cañon de Los Reyes in southern Baja California (Stebbins 2003). The Alameda whipsnake inhabits the inner Coast Ranges in western and central Contra Costa and Alameda counties (Jennings 1983, McGinnis 1992, Swaim 1994). Habitat fragmentation has restricted its range into five recognized subpopulations: Tilden-Briones population, Oakland-Las Trampas population, Hayward-Pleasanton Ridge population, Mount Diablo-Black Hills population, and Sunol-Cedar Mountain population. Designated critical habitat encompasses 154,834 acres in Alameda, Contra Costa and Santa Clara counties (71 FR 58176). Primary constituent elements include: (1) scrub/shrub communities with a mosaic of open and closed canopy; (2) woodland or annual grassland plant communities contiguous to lands containing PCE 1; and (3) lands containing rock outcrops, talus, and small mammal burrows within or adjacent to PCE 1 and or PCE 2 (71 FR 58176). No suitable habitat present. The study area is located outside of the species’ known range. Project is not located within designated critical habitat. None Thamnophis gigas Giant garter snake Fed: FT, CH CA: ST The most aquatic of California garter snakes, this species prefers freshwater marsh and low-gradient streams, and has adapted to drainage canals and irrigation ditches predominantly in the Central Valley. The project is located outside the species’ known range. Project is not located within designated critical habitat. None BIRDS: Aquila chrysaetos Golden eagle (nesting, wintering) Fed: none CA: WL, FP BCC A large diurnal raptor that nests on cliffs and in large trees in open areas. Forages in open terrain including grasslands, deserts, savannahs and early successional stages of forest and shrub habitats (Kochert et al. 2002). A year-round resident in the greater Bay Area. Breeding begins in February to late May; single-brooded (Baicich & Harrison 2005) No suitable habitat present within the study area. The species is known to breed in western, central and southern Contra Costa County including the Antioch South quad (CCCBBA 2002, CDFW 2013a). None Buteo swainsoni Swainson’s hawk (nesting) Fed: none CA: ST ABC, BCC A gregarious summer resident that inhabits open grasslands, shrublands, woodlands, and agricultural areas throughout the Central Valley and the valleys of the Sierra Nevada in Inyo and Mono counties (England et al. 1997). Nests are built in a variety of trees and shrubs; breeding occurs from March to August and are single brooded (Baicich & Harrison 2005). The project is located outside of the species’ known range. Confirmed nester in eastern Contra Costa County east of Antioch (CCCBBA 2002, CDFW 2013a). None Charadrius alexandrinus nivosus Western snowy plover (nesting) Fed: FT, CH CA: SSC ABC, BCC Inhabits beaches, mud flats, estuaries, salt evaporation ponds and inland river channels with banks for foraging. Breeds on sandy beaches, dunes, levees, river banks and dry salt evaporation beds along the California coastline typically in areas with minimal human disturbance. San Francisco Bay is within USFWS Recovery Unit 3 (USFWS 2007). Breeding begins in March; double-brooded (Baicich & Harrison 2005). Federal listing applies only to the Pacific coastal population that nests within 50 miles of the Pacific Ocean on the mainland coast, peninsulas, offshore islands, bays, estuaries, or rivers of the U.S. and Baja, CA; “Species of Special Concern" designation refers to both the coastal & interior populations (CDFG 2011, USFWS 2007). No suitable nesting habitat present within the study area. Not located within designated critical habitat. Not known to breed in Contra Costa County (CCCBBA 2002). None Appendix D Special-Status Fish and Wildlife Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 108 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT REQUIREMENTS & ADDITIONAL NOTES HABITAT SUITABILITY & LOCAL DISTRIBUTION OCCURRENCE POTENTIAL Elanus leucurus White-tailed kite (nesting) Fed: none CA: FP Inhabits grasslands, agriculture fields, oak woodlands, savannah and riparian habitats in rural and urban areas. Feeds primarily on California voles. Year-round resident of Central and Coastal California. Breeding begins in February; sometimes double-brooded (Baicich & Harrison 2005). Suitable nesting habitat among mature trees in study area. A nesting pair was reported approximately 0.5 mile to the west in a willow adjacent to a pond in 1985 (EONDX #6395). The species is known to breed throughout all of Contra Costa County (CCCBBA 2002). Possible Falco peregrinus anatum American peregrine falcon (nesting) Fed: Delisted CA: Delisted FP BCC Typically a year-round resident in California and most common along the coast. Nests on cliffs, but frequently uses man-made structures such as bridges and buildings. Nests are generally located close to water bodies with abundant avian prey. Breeding begins in March; single-brooded (Baicich & Harrison 2005). No suitable nesting habitat present within the study area. No reported occurrences within 20 miles of the study area (CDFW 2013a). Confirmed breeder in central Contra Costa County (CCCBBA 2002, CDFW 2013a). None Laterallus jamaicensis coturniculus California black rail Fed: none CA: ST, FP ABC, BCC Smallest of the rails; inhabits tidal marshes, freshwater wetlands and marshes. Wintering habitat similar to breeding habitat. A year-round resident of the San Francisco Bay Area. Breeding begins in March; sometimes double-brooded (Baicich & Harrison 2005). Suitable tidally influenced marshland habitat present within the study area. Species reported approximately 2.3 miles to the northwest (EONDX #69045). Reported as a possible breeder in northern Contra Costa County (CCCBBA 2002). Possible Pelecanus occidentalis californicus California brown pelican (nesting colony & communal roosts) Fed: Delisted CA: Delisted FP One of six recognized subspecies. Inhabits coastal waters and shoreline along the California Coast and San Francisco Bay. Nests on small isolated coastal islands in colonies off the shore of Southern California south to Baja California, Mexico. Non-breeding distribution extends north along the coast to British Columbia, Canada. Breeding occurs between February and July; single-brooded (Baicich & Harrison 2005). No shoreline nesting habitat present within the study area. Not known to breed in Contra Costa County (CCCBBA 2002). None Rallus longirostris obsoletus California clapper rail Fed: FE CA: SE, FP ABC One of four subspecies from the obsoletus group, restricted to the San Francisco Bay Area. Inhabits coastal wetlands dominated by pickleweed (Salicornia spp.) and cordgrass (Spartina spp.). Wintering habitat similar to breeding habitat. Breeding begins in March; single-brooded (Baicich & Harrison 2005). Suitable tidally influenced marshland habitat present within the study area. Nearest occurrence located 9.3 miles to the west (CDFW 2013a). Species not reported west of Bay Point in northern Contra Costa County. Not known to breed in northern Contra Costa County (CCCBBA 2002). Not expected Riparia riparia Bank swallow (nesting) Fed: none CA: ST Nests in colonies in vertical banks with friable soils. Breeds from April to August. Most of California’s nesting colonies occur along the upper Sacramento River. Breeding begins in April; double-brooded (Baicich & Harrison 2005). No suitable habitat present within the study area. Not reported in the project vicinity (CDFW 2013a). Not known to breed in Contra Costa County (CCCBBA 2002). None Appendix D Special-Status Fish and Wildlife Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 109 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT REQUIREMENTS & ADDITIONAL NOTES HABITAT SUITABILITY & LOCAL DISTRIBUTION OCCURRENCE POTENTIAL Sternula antillarum browni California least tern (nesting colony) Fed: FE CA: SE, FP ABC Breeds in colonies on bare soil, sand and mudflats along the California coast and the San Francisco Bay Area. Winters south to Mexico. Breeding begins in May; single-brooded (Baicich & Harrison 2005). No suitable habitat present within the study area. Nearest occurrence located 5 miles to the west in Pittsburg (CDFW 2013a). Confirmed breeding in westernmost Contra Costa County (CCCBBA 2002). None Strix occidentalis caurina Northern spotted owl Fed: FT CA: SSC ABC Inhabits coniferous forests from western British Columbia to the San Francisco Bay. In California owls inhabit Douglas fir mixed conifer and coastal redwood forests. Requires moderate to high canopy cover with sufficient large dead or dying trees/snags and abundant arboreal or semiarboreal prey base. Breeding begins in April; single-brooded. No suitable habitat present within the study area. Outside of species known range. No suitable habitat present within the study area. Not known to breed in Contra Costa County (CCCBBA 2002). None MAMMALS: Reithrodontomys raviventris Salt-marsh harvest mouse Fed: FE CA: SE, FP A small endemic, pickleweed (Salicornia spp.) obligate species of tidal marshes of the San Francisco Bay Area. Requires adjacent upland tidal zones for escape cover during floods. Two recognized subspecies, R. r. halicoetes that inhabits San Pablo and Suisun bays and R. r. raviventris that inhabits the South San Francisco Bay including Corte Madera and Richmond marshes. No suitable tidal marsh pickleweed habitat with within the study area. Tidal marsh habitat is dominated by tules and cattails, unsuitable for species. Species reported from pickleweed dominated marsh habitat 1,600 feet west of the study area in 1985 (EONDX #23862). Not expected Vulpes macrotis mutica San Joaquin kit fox Fed: FE CA: ST The smallest North American canid, the kit fox inhabits valley bottom and foothills from southern Kern County north to Contra Costa, Alameda, and San Joaquin Counties on the west, and near La Grange, Stanislaus County on the east side of the Central Valley and some of the larger scattered islands of natural land on the Valley floor in Kern, Tulare, Kings, Fresno, Madera, and Merced Counties (USFWS 1998). Species occupies habitats with open or low vegetation with loose soils. In the northern portion of their range, they occupy grazed grasslands and to a lesser extent valley oak woodlands (USFWS 1998). Kit fox are also found in grazed grasslands including areas adjacent to tilled or fallow fields, and suburban settings (USFWS 1998). Requires loose-textured sandy soils for burrowing, and a suitable prey base. No suitable habitat present within the study area. Outside of species known range. None SENSITIVE AND LOCALLY RARE SPECIES INVERTEBRATES: Andrena blennospermatis Blennospermatis vernal pool Andrenid bee Fed: None CA: SA A native solitary bee that specializes in pollinating yellow carpet (Blennosperma spp.) within vernal pools. These bees inhabit the soils in adjacent uplands surrounding vernal pools. No suitable habitat present within the study area. Study area lacks vernal pools; Blennosperma spp. host plant absent. None Appendix D Special-Status Fish and Wildlife Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 110 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT REQUIREMENTS & ADDITIONAL NOTES HABITAT SUITABILITY & LOCAL DISTRIBUTION OCCURRENCE POTENTIAL Anthicus antiochensis Antioch Dunes anthicid beetle Fed: None CA: SA Inhabits stabilized riverine sand dunes. Reported from Contra Costa, Solano, Glenn, Tehama, Sutter, and Shasta counties. Antioch Dunes local reported in 1953 is considered extirpated. No stabilized riverine sand dune habitat within the study area. One reported occurrence (EONDX 6190) from Antioch Dunes dating back to 1953; thought to be extirpated (CDFW 2013a). None Anthicus sacramento Sacramento anthicid beetle Fed: None CA: SA A beetle measuring 3.18-3.63 mm in length that resembles ants in appearance. Interior sand dunes and sand bars. Species has also been reported from sandy dredge spoil heaps. Distributed along the Sacramento and San Joaquin rivers, from Shasta to San Joaquin counties. Feeds primarily on dead insects; larvae are scavenger feeders and fungivores. Suitable sandy riverine habitat along West Antioch Creek. Species not reported from Contra Costa County; occurrence data is limited (CDFW 2013a). Not expected Branchinecta mesovallensis Midvalley fairy shrimp Fed: None CA: SA Endemic to the Central Valley vernal pools and artificial habitats such as roadside ditches and railroad toe-drains. Restricted to the Southeastern Sacramento, Southern Sierra Foothill, San Joaquin, and Solano-Colusa Vernal Pool regions (USFWS 2005). Inhabits vernal pools and grassy swales; species tolerant of warm water and extremely short-lived pools/swales (USFWS 2005). Reported from Jepson Prairie, Travis Air Force Base, Mather Field, Byron Airport, Haystack Mountain, Arena Plains National Wildlife Reserve in Solano, Sacramento, Contra Costa, San Joaquin, Merced, Madera and Fresno counties. May co-occur with vernal pool fairy shrimp (USFWS 2005). No suitable vernal pool/vernal swale habitat present within the study area. Nearest reported occurrence (EONDX 48372) ~12 miles to the southeast near Marsh Creek Road on an unspecified date (CDFW 2013a). None Coelus gracilis San Joaquin dune beetle Fed: None CA: SA An endemic darkling beetle of California and Baja California, Mexico. This small nocturnal, flightless sand burrowing beetle inhabits coastal dune scrub with herbaceous plants and sandy soils. Primarily found under vegetation or vegetative debris in the fore-dunes and sand hummocks from Santa Cruz to San Diego counties. No coastal dune scrub habitat within the study area. One reported occurrence (EONDX 22743) from Antioch Dunes dating back to 1974; thought to be extirpated (CDFW 2013a). None Dumontia oregonensis Hairy water flea Fed: None CA: SA A freshwater flea with primitive anomopod characteristics discovered in 1998 from the Agate Desert Preserve, Whetstone Savannah Preserve and Denman Wildlife Area in Oregon. Inhabits freshwater pools and vernal pools. Recorded from two locations in California: Mather Field in Sacramento County and Travis Air Force Base in Solano County. No suitable freshwater pool or vernal pool habitat present within study area. Species not recorded from Contra Costa County. None Efferia antiochi Antioch efferian robberfly Fed: None CA: SA Inhabits sand dunes. Recorded from Contra Costa and Fresno counties. No sand dune habitat within the study area. One reported occurrence (EONDX 6191) from Antioch Dunes dating back to 1981; presumed extant (CDFW 2013a). None Eucerceris ruficeps Redheaded sphecid wasp Fed: None CA: SA Inhabits interior sand dunes. Recorded from Contra Costa, Stanislaus, and Fresno counties. No sand dune habitat within the study area. One reported occurrence (EONDX 60286) from Antioch Dunes in 1979; presumed extant (CDFW 2013a). None Appendix D Special-Status Fish and Wildlife Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 111 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT REQUIREMENTS & ADDITIONAL NOTES HABITAT SUITABILITY & LOCAL DISTRIBUTION OCCURRENCE POTENTIAL Helminthoglypta nickliniana bridgesi Bridges’ coast range shoulderband (snail) Fed: None CA: SA Inhabits open hillsides in Alameda and Contra Costa counties and lowland grassland areas with thistles, weeds and rock piles. The Bridges’ Coast Range shoulderband snail range include Contra Costa County and northern Alameda Counties, as well as on the west slope of the Berkeley Hills, Marsh Creek Canyon, Tilden Park and Point Isabel (Roth 1999). Suitable habitat present within ruderal grassland areas in the study area. Observed from Oakley-Trembath Flood Detention Basin 2.5 miles to the east (Nomad 2010). Possible Hygrotus curvipes Curved-foot hygrotus diving beetle Fed: None CA: SA Inhabits small ponds, roadside ditches, vernal wetlands, and pools in intermittent streams, most of which support alkali-tolerant vegetation and dry up during the summer. Known from western margin of San Joaquin Valley, from Oakley in Contra Costa County south through Alameda County No suitable habitat within study area. Nearest reported occurrence (EONDX 7180) 6 miles to the east comprising four individuals collected and stored at California Academy of Sciences (CDFW 2013a). None Idiostatus middlekauffi Middlekauff's shieldback katydid Fed: None CA: SA Only reported from one location in California, the Antioch Dunes in 1965. Although none have been reported since then, the species is considered to be extant. No suitable interior dunes habitat present within the study area. Nearest reported occurrence (EONDX 6192) from Antioch Dunes in 1965; presumed extant (CDFW 2013a). None Linderiella occidentalis California linderiella Fed: None CA: SA An aquatic crustacean in the Anostroca family smaller than the vernal pool fairy shrimp with distinctive red eyes. Inhabit clear large vernal pools and lakes, but are fairly tolerant of high water temperatures and turbidity. Most common fairy shrimp in the Central Valley. Study area lacks vernal pools and playa pools. Species reported approximately 1 mile west along access road by railroad tracks in 1999 (EONDX #41661). Not expected Lytta molesta Molestan blister beetle Fed: None CA: SA Inhabits dry vernal pools from host plants including Lupinus spp. (Halstead and Haines 1992), Trifolium wormskioldii (Holstein 1980), and Eriodium spp. (Selander 1960). Size varies from 11-22 mm in length. Identified by black coloration with orange markings on the thorax. The larvae are nest parasites of solitary bees. Recorded from Tulare, Kern, Yolo, Contra Costa, Fresno, Merced, and Madera counties. No dry vernal pool habitat present within the study area. Nearest reported occurrence (EONDX 12876) from Brentwood in 1945; presumed extant (CDFW 2013a). None Metapogon hurdi Hurd’s metapogon robberfly Fed: None CA: SA Predaceous fly that feeds on other insects. Type locality from Antioch; paratypes collected from unspecified location near Fresno in 1922. Habitat and prey species requirements unknown. Habitat suitability within study area unknown. Species not reported since 1975 (CDFW 2013a). Not expected Myrmosula pacifica Antioch multilid wasp Fed: None CA: SA Inhabits sandy areas. Recorded from Yolo, Contra Costa and Inyo counties. No sand dune habitat within the study area. Nearest reported occurrence (EONDX 6186) from Antioch Dunes in 1952; presumed extant (CDFW 2013a). None Appendix D Special-Status Fish and Wildlife Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 112 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT REQUIREMENTS & ADDITIONAL NOTES HABITAT SUITABILITY & LOCAL DISTRIBUTION OCCURRENCE POTENTIAL Perdita scitula antiochensis Antioch andrenid bee Fed: None CA: SA Inhabits sand dunes associated with buckwheat (Eriogonum spp.), snakeweed (Gutierrezia spp.), Lessingia (Lessingia glandulifera), and golden-aster (Heterotheca spp.). Recorded from only two locations in eastern Contra Costa County. No sand dune habitat within the study area. Nearest reported occurrence (EONDX 6187) from Antioch Dunes in 1977; presumed extant (CDFW 2013a). None Philanthus nasalis Antioch specid wasp Fed: None CA: SA Inhabits sand dunes. Species has been extirpated from the only known location in Contra Costa County, but has been recorded more recently in Santa Cruz County in association with cudweed [Pseudognaphalium (=Gnaphalium) beneolens], Gnaphalium “zayanteense” and Ben Lomond buckwheat (Eriogonum nudum decurrens) species. No sand dune habitat within the study area. One reported occurrence (EONDX 6188) from Antioch Dunes in 1959; extirpated (CDFW 2013a). None Sphecodogastra antiochensis Antioch Dunes halcitid bee Fed: None CA: None Xerces-CI Only reported from one location in California, the Antioch Dunes in 1982. Species is considered to be extant. No sand dune habitat within the study area. Nearest reported occurrence (EONDX 59332) from Antioch Dunes in 1982; presumed extant (CDFW 2013a). None FISH: Archoplites interruptus Sacramento perch (within native range only) Fed: none CA: SSC AFS-T Historically found in the sloughs, slow-moving waters, and lakes of the Central Valley; prefers warm water, aquatic vegetation is essential for young. Extant native populations restricted to the Sacramento-San Joaquin Delta, Pajaro and Salinas River drainages, and Clear Lake. Study area is outside the species’ native range. Species not known to occur in Marsh Creek or its tributaries. Species reported as extinct in the March, Walnut and San Ramon creeks watersheds (Leidy 2007). None Oncorhynchus tshawytscha Chinook salmon Central Valley fall/late fall-run ESU Fed: SC CA: SSC AFS-V An anadromous fish that spends 1-3 years in the ocean and returns to perennial freshwater streams during the winter to spawn. The ESU includes all naturally spawned populations of fall-run Chinook salmon in the Sacramento and San Joaquin River Basins and their tributaries, east of Carquinez Strait, California (69 FR 19975). The Central Valley fall/late fall-run ESU refers to populations spawning in the Sacramento & San Joaquin Rivers and their tributaries; "Species of Special Concern" designation refers only to the fall-run (69 FR 19975). Project is within the designated ESU. Suitable habitat present within the study area; however, species not reported from West Antioch Creek (Leidy 2007). Not expected Pogonichthys macrolepidotus Sacramento splittail Fed: none CA: SSC AFS-V Endemic to the lakes and rivers of the Central Valley, but now confined to the Delta, Suisun Bay, lower Napa River, lower Petaluma River, the San Francisco Estuary and associated marshes (Moyle 2002). Inhabits slow-moving river sections, dead-end sloughs; requires flooded vegetation for spawning and foraging for young. Spawning occurs from late February to early July; peaking March through April (Moyle 2002). Yolo and Sutter bypasses are important spawning grounds for this species (Moyle 2002). Suitable habitat present within study area. Species reported from Delta, Marsh Creek and Walnut/San Ramon Creek; not reported from West Antioch Creek (Leidy 2007). No in-stream barriers to movement between study area and San Joaquin River. Possible Appendix D Special-Status Fish and Wildlife Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 113 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT REQUIREMENTS & ADDITIONAL NOTES HABITAT SUITABILITY & LOCAL DISTRIBUTION OCCURRENCE POTENTIAL AMPHIBIANS: Rana boylii Foothill yellow-legged frog Fed: none CA: SSC A medium-sized frog that inhabits rocky, cascading streams in woodland, chaparral and coniferous forests from the Oregon border to San Luis Obispo County and the western foothills of the Sierra Nevada below 6000 feet. No suitable habitat present within the study area. Species does not inhabit low-grade streams with silty substrates. None REPTILES: Anniella pulchra pulchra Silvery legless lizard Fed: none CA: SSC A small legless lizard measuring up to 7 inches in length with shovel-shaped nose and blunt tail. Displays distinct coloration: a bright silver dorsal surface with a yellowish underbelly and a single black dorsal stripe. Feeds on a variety of insects, beetles, and arachnids. Inhabits sandy or loose loamy soils and leaf litter from Contra Costa County to northwestern Baja. Areas of sandy soils present in floodplain within the study area; area subject to annual flooding. Nearest reported occurrence (EONDX 74654) from Antioch Dunes in 1966; presumed extant (CDFW 2013a). Not expected Emys marmorata Western pond turtle Fed: none CA: SSC A moderate sized freshwater turtle that inhabits permanent or nearly permanent bodies of water and low gradient slow moving streams below 6,000 feet elevation. Range extends from Washington to the northern Bay Area counties along the Pacific slope drainages. Two recognized subspecies the northwestern pond turtle (E. m. marmorata) which ranges north of the American River and the southwestern pond turtle (E. m. pallida) which ranges from the coastal areas south of San Francisco. Subspecies interbreed within the gradation zone that defines the two subspecies. Suitable habitat present within study area. Two individuals observed during April 23, 2009 site visit. Suitable aquatic and basking habitat present. Possible Phrynosoma blainvillii Coast horned lizard Fed: none CA: SSC A dorsoventrally flattened lizard with several spiny dorsal scales and backward projecting spines on the head. Inhabits a variety of habitats including scrub, chaparral, grasslands and woodlands with sandy to gravelly substrate from Shasta County to Los Angeles County within the Sacramento and San Joaquin Valleys and neighboring foothills. Active from April-October, peaking in April/May. Diet consists of native ants and beetles, but may also feed on other insects that are seasonally abundant. No suitable habitat present within the study area. Two reported occurrences (EONDX 48126, 66137) from Mt. Diablo in 2002 and 2005 (CDFW 2013a). None BIRDS: Accipiter cooperii Cooper’s hawk (nesting) Fed: none CA: WL Inhabits dense stands of oak woodlands, riparian deciduous forests, or other forest habitats often near water & suburban areas. Hunts in broken woodlands & along forest edges. Breeding begins in April; single-brooded (Baicich & Harrison 2005). Juvenile observed in dead Willow in the study area during April 23, 2013 site visit. Suitable nesting habitat is present among mature trees in study area (CDFW 2013a). Confirmed breeder in western and central Contra Costa County (CCCBBA 2002). Possible Appendix D Special-Status Fish and Wildlife Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 114 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT REQUIREMENTS & ADDITIONAL NOTES HABITAT SUITABILITY & LOCAL DISTRIBUTION OCCURRENCE POTENTIAL Accipiter striatus Sharp-shinned hawk (nesting) Fed: none CA: WL Inhabits north-facing slopes in conifers, including ponderosa pine, black oak, & Jeffrey pines, preferably in riparian areas. Forages primarily for small birds along woodland edges & openings, hedgerows, brushy pastures, & shorelines. Breeding begins in April; single-brooded (Baicich & Harrison 2005). Suitable nesting habitat is present among mature trees in study area (CDFW 2013a). Confirmed breeder in western and southern Contra Costa County, but not reported to nest in northern portion of the county (CCCBBA 2002). Not expected Agelaius tricolor Tricolored blackbird (nesting colony) Fed: none CA: SSC ABC, BCC Highly colonial species, most numerous in central valley & vicinity. Largely endemic to California. Nest in emergent vegetation within aquatic and riparian habitats. Breeds from mid-March through early August; double-brooded (Baicich & Harrison 2005, Shuford and Gardali 2008). Suitable habitat present in permanent wetland in study area. Confirmed breeder in southern Contra Costa County; no breeding records in northern Contra Costa County (CCCBBA 2002, CDFW 2013a). Possible Ammodramus savannarum Grasshopper sparrow (nesting) Fed: none CA: SSC An inconspicuous sparrow that inhabits moderately open grasslands and prairies with patchy bare ground, cultivated fields and forest clearings with short to moderately tall grasses and scattered shrubs (Vickery 1996, Baicich & Harrison 2005, Shuford and Gardali 2008). Areas with native bunchgrasses are important features in southern California (Shuford and Gardali 2008). Breeds from min-March through August; double or treble-brooded (Baicich & Harrison 2005, Shuford and Gardali 2008). Marginal nesting habitat in ruderal grassland within the study area. No reported occurrences within 20 miles of the study area (CDFW 2013a). Confirmed breeder in western Contra Costa County (CCCBBA 2002, CDFW 2013a). Not expected Ardea herodias Great blue heron (rookery site) Fed: none CA: SA A large wading bird that inhabits a variety of aquatic habitats including shores, tideflats, marshes, swamps, ponds, lakes, rivers and streams. Nests colonially in large trees near water bodies. Breeding begins in March; single-brooded (Baicich & Harrison 2005). Marginally suitable rookery habitat present among mature trees within the study area. No nest structures observed in study area. Known to breed in western, northern and eastern Contra Costa County (CCCBBA 2002). Not expected Asio flammeus Short-eared owl (nesting) Fed: none CA: SSC ABC Inhabits open grasslands, prairies, marshes and agricultural fields with sufficient vegetative cover and abundant small mammal prey. Nests on the ground in a shallow depression. Breeds in Great Basin, Sacramento-San Joaquin Delta, San Joaquin Valley, and isolated areas along the southern California Coast (Shuford and Gardali 2008). Breeds from March through July; single-brooded (Baicich & Harrison 2005, Shuford and Gardali 2008). Suitable nesting present in permanent wetland in study area. Reported as a possible breeder from one location along the Carquinez shoreline in northern Contra Costa County (CCCBBA 2002). Possible Athene cunicularia Burrowing owl (burrow sites & some wintering sites) Fed: none CA: SSC BCC Valley bottoms and foothills with low vegetation and fossorial mammal activity. Listing includes wintering observations with/without a burrow in San Francisco, Ventura, Sonoma, Marin, Napa and Santa Cruz counties. Breeding begins in March; single-brooded (Baicich & Harrison 2005). Suitable habitat present within the study area. Ground squirrel activity in ruderal grassland lot in study area that could be used for nesting. Several occurrences reported within five miles (CDFW 2013a). Confirmed breeder in eastern Contra Costa County (CCCBBA 2002, CDFW 2013a). Possible Appendix D Special-Status Fish and Wildlife Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 115 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT REQUIREMENTS & ADDITIONAL NOTES HABITAT SUITABILITY & LOCAL DISTRIBUTION OCCURRENCE POTENTIAL Baeolophus inornatus Oak titmouse (nesting) Fed: none CA: SA ABC Primarily an oak obligate species, the oak titmouse inhabits oak woodlands, oak savannahs, piñyon and juniper woodlands and occasionally suburban areas with oaks. Year-round resident throughout much of California. Breeding begins in March; single-brooded (Baicich & Harrison 2005). Suitable nesting habitat among mature trees within study area. Confirmed breeder throughout all of Contra Costa County (CCCBBA 2002). Possible Buteo regalis Ferruginous hawk (wintering) Fed: none CA: WL BCC Breeds in the northern states and Canada; winters south from California and Texas to Mexico. Wintering habitat consists of open grasslands, deserts and cultivated fields. Breeding begins in April; single-brooded (Baicich & Harrison 2005). No suitable wintering habitat within the study area. Known to winter in Contra Costa County (EONDX 66098, 72123, 72124) (CDFW 2013a). None Charadrius montanus Mountain plover Fed: none CA: SA ABC, BCC Breeds east of the Rocky Mountains in the high plains and winters in low elevation interior valleys and plains of the Sacramento and San Joaquin Valleys, inner portion of the San Francisco Bay region, and south to Imperial Valley (Shuford and Gardali 2008). Winters between September to mid-March in short grass prairies, alkali flats, heavily grazed grasslands, burned fields, and playa habitats with low to absent vegetation (Shuford and Gardali 2008). No suitable habitat present in the study area. No occurrences within the study area (CDFW 2013a). No reported breeding occurrences in Contra Costa County (CCCBBA 2002). None Circus cyaneus Northern harrier (nesting) Fed: none CA: SSC Inhabits both freshwater and saltwater marshes and adjacent upland grasslands. Nests on the ground in tall grasses in grasslands and meadows. Breeding begins in March; single-brooded (Baicich & Harrison 2005). Suitable nesting habitat present in permanent wetland. Species observed on site. Confirmed breeder in northern and eastern Contra Costa County (CCCBBA 2002, CDFW 2012). Possible Dendroica petechia brewsteri Yellow warbler (nesting) Fed: none CA: SSC BCC Nests in dense, shrubby thickets dominated by willows along water courses and wet meadows. Builds nests in a variety of riparian trees, most commonly willows (Salix spp.) and cottonwoods (Populus spp.). Occasionally breeds in mixed-conifer forests with shrubby understories (Shuford and Gardali 2008). Breeds from April to late July; sometimes double-brooded (Baicich & Harrison 2005, Shuford and Gardali 2008). No suitable dense, shrubby nesting habitat present in the study area. Confirmed breeder in western, and possible breeder in eastern, Contra Costa County (CCCBBA 2002). None Geothlypis trichas sinuosa Saltmarsh common yellowthroat Fed: none CA: SSC BCC Year-round resident of the San Francisco Bay Area. Inhabits dense vegetation in wetlands, marshes, estuaries, prairies and riparian areas of San Francisco and San Pablo bays, and along the coastal areas of Marin, San Francisco, and San Mateo counties (Shuford and Gardali 2008). Breeds from mid-March to late July; double-brooded (Baicich & Harrison 2005, Shuford and Gardali 2008). Suitable nesting habitat present in permanent wetland. Confirmed breeder in northwestern Contra Costa County (CCCBBA 2002, CDFW 2013a). Four reported occurrences 2 miles to the northwest on Browns Island and Sherman Island in 2004 (CDFW 2013a). Possible Appendix D Special-Status Fish and Wildlife Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 116 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT REQUIREMENTS & ADDITIONAL NOTES HABITAT SUITABILITY & LOCAL DISTRIBUTION OCCURRENCE POTENTIAL Icteria virens Yellow-breasted chat (nesting) Fed: none CA: SSC A large, secretive wood warbler that inhabits early successional riparian area, pond margins, marshes, hedgerows, old pastures and edge habitats with dense shrub understories and an open canopy (Shuford and Gardali 2008). Occurs in forests especially regenerating burned and logged areas (Eckerle and Thompson 2001, Baicich & Harrison 2005). Distributed throughout northern California and the Central Valley. Nests in dense shrubs up to eight feet in height; breeds from late April through early August; double-brooded (Baicich & Harrison 2005, Shuford and Gardali 2008). Suitable nesting habitat present in permanent wetland. Confirmed nester in northern Contra Costa County (CCCBBA 2002a). Possible Lanius ludovicianus Loggerhead shrike (nesting) Fed: none CA: SSC BCC Year-round resident in California. Inhabits shrublands and open woodlands associated with grasslands with areas bare ground and impaling sites such as thorny vegetation, multi-stemmed plants or barbed wire (Shuford and Gardali 2008). Breeds from early February through July; double- to triple-brooded (Baicich & Harrison 2005, Shuford and Gardali 2008). Suitable nesting habitat within the study area. Confirmed breeder in northern, eastern, central and southern Contra Costa County (CCCBBA 2002). Possible Melospiza melodia maxillaris Suisun song sparrow Fed: none CA: SSC BCC A medium-sized sparrow that inhabits marshes containing cattails, tules, and other sedges, and Salicornia; also known to frequent tangles bordering sloughs. One of four subspecies in the San Francisco Bay Area. Endemic to the Suisun Marsh tidal marshlands from the Carquinez Strait to Sherman Island and Big Break (Shuford and Gardali 2008). Breeding begins in April; often treble-brooded (Baicich & Harrison 2005). Suitable nesting habitat present in permanent wetland. Within subspecies known range (Shuford and Gardali 2008). Confirmed nester in the Suisun Bay tidal marshlands of northern Contra Costa County (CCCBBA 2002, CDFW 2013a). Possible Phalacrocorax auritus Double-crested cormorant (rookery site) Fed: none CA: WL Rookery sites are located near large water bodies and on small islands, shorelines, and cliff ledges. Nest consists of a structure of twigs and plant material in a tree or tall manmade structures. Breeding begins in early March to mid-June; single-brooded (Baicich & Harrison 2005). No suitable rookery sites present within the study area. One recorded occurrence (EONDX 27030) of nests found on utility towers on Sherman Island in 1988; no other occurrences within a 10-mile radius of study area (CDFW 2013a). None Picoides nuttallii Nuttall’s woodpecker (nesting) Fed: none CA: ABC BCC Inhabits oak woodland and mixed riparian woodlands. Forage along bark of trees for insects; also feeds on acorns. Cavity nester. Breeding begins in March; single-brooded (Baicich & Harrison 2005). Suitable nesting habitat among mature trees within study area. Confirmed breeder in all of Contra Costa County (CCCBBA 2002). Possible Progne subis Purple martin (nesting) Fed: none CA: SSC Nests in tall, old trees near a body of water in open forests, woodlands, & riparian habitats. Forages in valley foothills, meadows, grasslands, montane hardwood, riparian habitats, closed-cone pine-cypress, ponderosa pine, Douglas fir, & redwood forests. Breeds from May to mid-August; primarily single-brooded (Baicich & Harrison 2005, Shuford and Gardali 2008). No suitable nesting habitat is present within the study area. No reported occurrences within Contra Costa County (CDFW 2013a); species is not known to breed in Contra Costa County (CCCBBA 2002). None Appendix D Special-Status Fish and Wildlife Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 117 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT REQUIREMENTS & ADDITIONAL NOTES HABITAT SUITABILITY & LOCAL DISTRIBUTION OCCURRENCE POTENTIAL Selasphorus sasin Allen’s hummingbird (nesting) Fed: none CA: BCC ABC Inhabits a variety of woodland and scrub habitats. Breeds in a variety of habitats including moist coastal areas, scrub, chaparral and woodlands. Breeding begins in February; double-brooded (Baicich & Harrison 2005). Suitable nesting habitat is present among trees and shrubs within the study area. Confirmed breeder in western and central Contra Costa County; not reported from northern portion of county (CCCBBA 2002). Not expected MAMMALS: Antrozous pallidus Pallid bat Fed: none CA: SSC WBWG-H Inhabits rocky terrain in open areas in lowlands, foothills and mountainous areas near water throughout California below 2,000 meters. Roost in caves, rock crevices, mines, hollow trees, buildings and bridges in arid regions in low numbers (<200). Active from March-November; migrates in some areas, but may hibernate locally. Marginal roost habitat present in trees and snags within study area. Suitable foraging habitat in study area. Nearest reported occurrence (EONDX #66593) 9 miles to west (CDFW 2013a). Not expected Bassariscus astutus Ringtail Fed: none CA: FP A small, nocturnal carnivore that feeds on arthropods, mammals including Neotoma spp., and some fruits. Inhabits a variety of areas from riparian, montane and coniferous woodlands, chaparral, desert and tropical habitats with rocky outcroppings, canyons, or talus slopes near open water up to 1,400 meters (Poglayen-Neuwall and Toweill 1988). Breeding season occurs from February to May. Dens in rocky areas in crevices, tree hollows, dens made by other animals, and manmade structures in rural /suburban areas; relocates to new denning site every few days. No suitable habitat within study area. No occurrences reported in the region (CDFW 2013a). None Corynorhinus townsendi Townsend’s western big-eared bat Fed: none CA: SSC WBWG-H An obligate cave rooster and moth specialist. Inhabits caves and mines, but may also use bridges, buildings, rock crevices and tree hollows in coastal lowlands, cultivated valleys and nearby hills characterized by mixed vegetation throughout California below 3,300 meters. Exhibits high site fidelity and is highly sensitive to disturbance. Forages along edge habitats near water; may travel long distances during foraging bouts. No suitable roost habitat present in study area. Known from Mt. Diablo (CDFW 2013a). None Dipodomys heermanni berkeleyensis Berkeley kangaroo rat Fed: none CA: SA Inhabits open grass hilltops and open spaces in chaparral and blue oak/digger pine woodlands; needs fine, deep, well-drained soils for burrowing. Past collections of the species have been made in the vicinity of Mount Diablo, the Berkeley Hills, Strawberry Canyon, Orinda Park Pool, Calaveras Reservoir, and Siesta Valley. More recent – and as-yet unconfirmed – kangaroo rat occurrences have been reported in the Sunol Valley Regional Wilderness well within the species recognized range. Populations in the vicinity of the Berkeley Hills are considered extirpated due to predation by domestic cats. No suitable habitat within the study area. One reported occurrence (EONDX 24074) from Mt. Diablo dating back to 1936 (CDFW 2013a). None Lasiurus blossevillii Western red bat Fed: none CA: SSC WBWG-H Primarily associated with intact riparian habitat; species is ubiquitous throughout most of California except the northern Great Basin region. Roosts individually in foliage within trees along riparian areas, orchards and suburban areas. Favors cottonwoods, willows, sycamores, and walnut trees (Bolster 2005). Feeds primarily on moths, but will eat a variety of other insects. No suitable intact riparian roosting habitat present within study area. One occurrence (EONDX #69704) reported from a non-specific location in Antioch (CDFW 2013a). None Appendix D Special-Status Fish and Wildlife Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 118 SPECIES NAME COMMON NAME LISTING STATUS1 HABITAT REQUIREMENTS & ADDITIONAL NOTES HABITAT SUITABILITY & LOCAL DISTRIBUTION OCCURRENCE POTENTIAL Lasiurus cinereus Hoary bat Fed: none CA: SA WBWG-M Ubiquitous throughout California. A solitary foliage rooster that prefers evergreens, but will use deciduous trees in forested habitats, particularly in edge habitat (Bolster 2005). May forage in small to large groups. Feeds primarily on moths, but will eat a variety of other insects. Migrates great distances. No evergreen roosting habitat present within the study area. One recorded occurrence (EONDX 69700) in Brannan Island State Recreation Area, Sacramento County, 9 miles to the northeast in 1999 (CDFW 2013a). None Myotis yumanensis Yuma myotis bat Fed: none CA: SA WBWG-LM A riparian obligate species. Ubiquitous throughout California. Inhabits riparian areas near permanent water sources. Roosts in a variety of habitats including bridges, buildings, caves, mines, cliff crevices and trees. Forages above water and in riparian areas. No suitable intact riparian roosting habitat present within study area. No occurrences reported from Contra Costa County (CDFW 2013a). None Perognathus inornatus inornatus San Joaquin pocket mouse Fed: none CA: SA Endemic to California. Inhabits grasslands and blue oak woodlands with friable soils in the foothills and valley bottoms of the Central Valley from the Marysville Buttes to the Corrizo Plain. Eats insects and seeds of various grasses, forbs and shrub including Artemisia and Atriplex spp., has fur-lined cheek pouches, and experiences daily torpor. Breeding occurs from March to July; two litters are typical (Jameson and Peeters 2004). No suitable habitat present within the study area. Three reported occurrences within 5 miles in foothills to the south (CDFW 2013a). None Sorex ornatus sinuosus Suisun shrew Fed: none CA: SSC Inhabits tidal marshes of the northern shores of San Pablo Bay, Suisun Bay, and Grizzly Island; requires dense low-lying cover and drift-weed and other litter above the mean high tide line for nesting and foraging. Breeding occurs from late February to early June; one to two litters annually (Jameson and Peeters 2004). Outside species known range. Species does not occur on southern shores of the delta (CDFW 2013a). None Taxidea taxus American badger Fed: none CA: SSC A large mustelid that inhabits open areas with friable soils within woodland, grassland, savannah and desert habitats. A fossorial mammal that preys predominately on ground squirrels (Ammospermophilus and Spermophilus spp.) and pocket gophers (Thomomys spp.). Mating occurs in late summer; young are born in March and April (Jameson and Peeters 2004). No suitable habitat present within the study area. Nearest reported occurrence is greater than 5 miles in the foothills to the south (CDFW 2013a). None 1 Explanation of State and Federal Listing Codes Federal listing codes: California listing codes: FE Federally listed as Endangered SE State listed as Endangered FT Federally listed as Threatened ST State listed as Threatened FPE Federally proposed for listing as Endangered SCE State candidate for listing as Endangered FPT Federally proposed for listing as Threatened SCT State candidate for listing as Threatened FPD Federally proposed for delisting SCD State candidate for delisting FC Federal candidate species (former Category 1 candidates) SSC California Species of Special Concern SC Species of Concern (NMFS regulated species only) FP Fully Protected CH Critical Habitat (Designated or Proposed) WL Watch List SSC Species of Special Concern designated by the Marine Mammal Commission FSC Federal Species of Concern – No longer maintained by USFWS Sacramento Regional Office SLC Species of local concern or conservation importance – No longer maintained by USFWS Appendix D Special-Status Fish and Wildlife Species West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 119 Other status codes: ABC The American Bird Conservancy maintains a Green List of all the highest priority birds for conservation in the continental United States and Canada. Based off the species assessments prepared by Partners in Flight (PIF) and has been expanded to include shorebirds, waterbirds and waterfowl. AFS American Fisheries Society identifies marine, estuarine and diadromous fish species that are at risk of extinction in North America. The AFS has designated the following four classifications in order of conservation importance E – Endangered, T – Threatened, V – Vulnerable, and CD – Conservation Dependent. BCC U.S. Fish and Wildlife Service Birds of Conservation Concern. List of migratory and nonmigratory bird species (beyond those already designated as federally threatened or endangered) that represent the Service’s highest conservation priorities. SA “Special Animals” is a general term that refers to all of the taxa the CNDDB is interested in tracking, regardless of their legal or protection status. This list is also referred to as the list of “species at risk” or “special status species”. The Department of Fish and Game considers the taxa on this list to be those of greatest conservation need. WBWG Western Bat Working Group: H – High Priority indicates species that are imperiled or are at high risk of imperilment based on available information on distribution, status, ecology and known threats; M – Medium Priority indicates a lack of information to assess the species’ status; L – Low Priority indicates relatively stable populations based on available data. The WBWG also uses intermediary designations including MH – Medium-High and LM – Low-Medium priorities. Xerces Xerces Society for Invertebrate Conservation. Red List identifies endangered, threatened or at-risk pollinator species. PE – Possibly Extinct indicates species only known from historical occurrences; CI – Critically Imperiled indicates species at very high risk of extinction; I – Imperiled indicates species at high risk of extinction; V – Vulnerable indicates species at moderate risk of extinction; DD – Data Deficient indicates lack of information to sufficiently assess status. Appendix E California Natural Diversity Database Species List West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 120 APPENDIX E CALIFORNIA NATURAL DIVERSITY DATABASE SPECIES LIST Appendix E California Natural Diversity Database Species List West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 121 Appendix E California Natural Diversity Database Species List West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 122 Appendix E California Natural Diversity Database Species List West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 123 Appendix E California Natural Diversity Database Species List West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 124 Appendix E California Natural Diversity Database Species List West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 125 Appendix E California Natural Diversity Database Species List West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 126 Appendix F U.S. Fish and Wildlife Service Species List West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 127 APPENDIX F U.S. FISH AND WILDLIFE SERVICE SPECIES LIST Appendix F U.S. Fish and Wildlife Service Species List West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 128 Appendix F U.S. Fish and Wildlife Service Species List West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 129 Appendix F U.S. Fish and Wildlife Service Species List West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 130 Appendix F U.S. Fish and Wildlife Service Species List West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 131 Appendix F U.S. Fish and Wildlife Service Species List West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 132 Appendix F U.S. Fish and Wildlife Service Species List West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 133 Appendix F U.S. Fish and Wildlife Service Species List West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 134 Appendix F U.S. Fish and Wildlife Service Species List West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 135 Appendix F U.S. Fish and Wildlife Service Species List West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 136 Appendix F U.S. Fish and Wildlife Service Species List West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 137 Appendix G Project Photographs West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 138 APPENDIX F PROJECT PHOTOGRAPHS Photo 1. View of West Antioch Creek looking downstream (north) up O Street, showing the earthen trapezoidal channel near the Contra Costa Fairgrounds and the culvert under 10th St. Photo taken February 27, 2009. Photo 2. Looking upstream (south) at concrete lined ditch, covered with wooden planking. 10th St. is to the left of the photo, and the vacant car dealership is to the right. Photo taken February 27, 2009. Appendix G Project Photographs West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 139 Photo 3 View of the open concrete channel, looking downstream (north). County-owned vacant lot and apartment carport is visible in the right of the photo. Photo taken March 25, 2009. Photo 4.View of seasonal wetlands, facing northwest. Ruderal grassland vegetation on the berm and adjacent field is visible in the distance. Photo taken July 8, 2009. Appendix G Project Photographs West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 140 Photo 5. View of West Antioch Creek in improved open earthen channel, looking downstream (north). Photo taken February 27, 2009. Photo 6. View of low flow channel and adjacent seasonal wetlands on floodplain. Looking upstream. Photo taken March 12, 2013. Appendix G Project Photographs West Antioch Creek Channel Improvements Project, City of Antioch, Contra Costa County, California 141 Photo 7. View of low flow channel and adjacent seasonal wetlands looking downstream toward the culvert crossing under West 4th St. Photo taken March 12, 2013. Photo 8. View of low flow channel and adjacent permanent wetland looking downstream (north) toward the railroad tracks and the San Joaquin River. Photo taken March 12, 2013. Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project APPENDIX C Cultural Resources Assessment 2525 Warren Drive ● Rocklin, CA 95677 ● Tel: (916) 782-9100 ● Fax: (916) 782-9134 ● Web: www.ecorpconsulting.com 14 October 2013 Mindy Gentry, Senior Planner City of Antioch 200 ‘H’ Street Antioch, CA 94531 RE: Confidential Cultural Resources Addendum for the West Antioch Creek Channel Improvement Project Dear Mindy: The City of Antioch, in conjunction with the Contra Costa County Public Works Department (CCCPWD), is preparing to make channel improvements to West Antioch Creek (Project Area) to reduce flood risk in the Project Area by increasing the capacity of the channel between West Tenth Street and West Eighth Street. The City will re-establish the 25-year flood protection capacity of the channel downstream of West Eighth Street to the BNSF railroad trestle (Figure 1). The Project Area was originally inventoried for cultural resources in 2010 (Attachment A); however, in 2012, the City opted to expand the Project Area in order to encompass the full extent of the channel improvements. This expansion includes approximately 3,000 linear feet of channel to be desilted. Although the 2010 inventory included a records search, literature review, and field survey of the Project Area, since the Project boundaries have changed, an updated records search to include the newly proposed acreage and field survey of the additional acreage were required. This letter report serves to amend the original report and describes the results of the supplemental cultural resources inventory of the newly proposed additional acreage. All regulatory and historical contexts are hereby incorporated by reference from the original cultural resources inventory report; Sections 2.0 and 4.0 (Attachment A). The former Al Eames Ford dealership buildings are located at 1400 West 10th Street in Antioch near the Project. An historic structure evaluation including an architectural evaluation to determine if the Ford dealership buildings qualify for the National Register of Historic Places (NRHP) or the California Register of Historical Resources (CRHR) was completed. The historic architectural evaluation report of the Ford dealership buildings is included as Attachment B. Project Description The Proposed Project will improve the flood capacity of the West Antioch Creek channel to a 25-year level of protection and reduce flooding in the Project Area within the City of Antioch. This project would alter two adjacent reaches of the channel. Project work in Reach A (conveyance improvements) would increase the capacity of the conveyance system between West 10th Street to the 1993 Project limits (approximately West 8th Street). Project work in Reach B (desilting) would desilt the channel between the 1993 Project limits at approximately West 8th Street to approximately 200 feet north of the BNSF railroad trestle to restore design capacity. Either reach can be improved independently from the other or concurrently, but work in both reaches must be conducted to realize improved levels of flood protection. Area of Potential Effects The Area of Potential Effects (APE) consists of the horizontal and vertical limits of the project, and includes the area within which significant impacts or adverse effects to Historical Resources or Historic 2012-140/West Antioch Creek-Culvert/ Cultural Resources Addendum 2 Properties could occur as a result of the project. The horizontal APE consists of all areas where activities associated with the project are proposed, and in the case of the current project, equals the project area subject to environmental review under CEQA. This includes areas proposed for construction, channel expansion, vegetation removal, sediment removal, trenching, staging, and other elements described in the official project description. The horizontal APE is illustrated in Figure 1 and also represents the survey coverage area (Figure 2). The horizontal APE is composed of a north-south waved alignment along West Antioch Creek between an area beginning approximately 200 feet north of the BNSF railroad tracks and ending at West 8th Street. The APE includes channel segments and associated areas totaling approximately 26.83 acres. The vertical APE is described as the maximum depth below the surface to which excavations for project foundations and facilities will extend. Thus, the vertical APE includes all subsurface areas where archaeological deposits could be affected. The subsurface vertical APE varies across the project, depending on depth of foundation and digging for channel expansion and trenching. Ground disturbance of up to 20 feet below the surface may be necessary in order to make modifications and adjustments to the channel. The vertical APE also is described as the maximum height of poles and equipment, which could impact the physical integrity and integrity of setting of cultural resources, including districts and traditional cultural properties. For the current project, the above-surface vertical APE is up to 20 feet above the surface, which may be the maximum height of the proposed construction activities. Cultural Resources Inventory The efforts to identify Historical Resources within the Project Area consisted of various literature reviews, a records search at the Northwestern Information Center, historic map and aerial research, and a pedestrian survey of the entire Project Area. An updated records search was conducted on 20 May 2013 (NWIC search # 12-1408, Attachment C). The original records search for the property was completed at the Northwest Information Center (NWIC) on 26 May 2010 (NWIC search #09-1497; within Attachment A). The purpose of the supplemental records search was to expand the previous search area to include newly proposed project expansion and serve as an update to the previously conducted records search. In addition to the official records and maps for archaeological sites and surveys in Contra Costa County, the following historic references were also reviewed: Historic Property Data File for Contra Costa County (Office of Historic Preservation (OHP) 2013a); The National Register Information System website (National Park Service 2013); Office of Historic Preservation, California Historical Landmarks website (OHP 2013b); California Historical Landmarks (OHP 1996 and updates); Gold Districts of California (Clark 2005); California Gold Camps (Gudde 1975); 1500 California Place Names (Bright 1998); Directory of Properties in the Historical Resources Inventory (1999); Caltrans Local Bridge Inventory (Caltrans 2013b); Caltrans State Bridge Inventory (Caltrans 2013a); and Historic Spots in California (Kyle 2002). Other references examined include a property search with the Contra Costa County Mapping Information website (Contra Costa County 2013), historic GLO land patent records (BLM 2013), and numerous aerial photographs taken between 1939 and 2010. Historic maps reviewed include:  1908 (reprinted in 1951) USGS Antioch Creek, CA (1:62,500 scale)  1953 USGS Antioch North, CA (1:24,000 scale)  1953 (Photorevised 1968) USGS Antioch North, CA (1:24,000 scale)  1978 USGS Antioch North, CA (1:24,000 scale) 2012-140/West Antioch Creek-Culvert/ Cultural Resources Addendum 3 Letters requesting historical information relevant to the Project Area were sent to the Antioch Historical Society and the Contra Costa County Historical Society during the original inventory in order to solicit comments or obtain historical information that either repository might have regarding events, people, or resources of historical significance in the area (in Attachment A). The records search consisted of a review of previous research and literature, records on file with the NWIC for previously recorded resources, and historical aerial photographs and maps of the vicinity. Previous Research Nineteen previous cultural resource investigations have been conducted within one mile of the property, covering approximately 25 percent of the total area surrounding the property within the record search radius (Table 1). These studies revealed the presence of resources from the historical period including railroads, refuse dumps, residences, and school buildings. The previous studies were conducted between 1976 and 2010 and vary in size from 1.74 acres to 7,000 acres. Table 1 – Previous Cultural Studies In or Within 1.0 Mile of the Project APE Report Number Author(s) Report Title Year Area Covered Within Project APE? 1418 Archaeological Resource Service An Archaeological Reconnaissance of a Proposed Park Site Situated in Northwestern Antioch (ARs 78-138) 1978 30 Acres No 4991 Wirth Associates, Inc. Western Leg-Alaska Highway Pipeline Project 1980 Unspecified Linear Survey No 5798 Banks, P. An Investigation of the Cultural Resources Within the Antioch Marina Park, Antioch, Contra Costa County, California 1983 18 Acres No 7386 David Chavez & Associates Cultural Resources Evaluation for the Delta Landing EIR/EIS, Antioch, Contra Costa County, California 1985 483 Acres Yes 11826 Theodoratus Cultural Research Montezuma I & II Cultural Resources 1980 N/A No 13256 Allan G. Bramlette, et al. Archaeological Resources Inventory for Los Vaqueros Water Conveyance Alignments, Contra Costa County, California 1991 7,000 Acres Yes 18352 Busby, Colin I. Assessment of Archaeological Resources: East/Central Contra Costa County Wastewater Management Plan 1976 N/A Yes 21181 Basin Research Associates Cultural Resources Assessment- Proposed Housing Site Between West 7th and 9th Streets and I Street, City of Antioch, Contra Costa County, California 1997 1.74 Acres No 22812 Basin Research Associates Contra Costa County Water Multipurpose Pipeline Project, Environmental Documentation Study, Cultural Resources Review 1997 Unspecified Linear Survey Yes 2012-140/West Antioch Creek-Culvert/ Cultural Resources Addendum 4 Report Number Author(s) Report Title Year Area Covered Within Project APE? 25238 Pacific Legacy, Inc. Archaeological Survey Report for the Highway 4/Somersville Cell Site, Antioch, Contra Costa County 2002 N/A No 30387 CRM TECH Historical Resources Compliance Report, Burlington Northern Santa Fe Railway Double Track Project (Segment 2) 2005 Unspecified Linear Survey No 30579 Basin Research Associates Cultural Resources Report, Delta Energy Center Site (DEC) and Associated Linears, Cities of Pittsburg and Antioch, Contra Costa County, California 2004 Unspecified Linear Survey No 31405 William Self Associates, Inc. Archaeological Survey and Cultural Resources Assessment for the City of Antioch’s proposed Antioch Recycled Water Pipeline project 2006 Unspecified Linear Survey Yes 33545 National Park Service (Western Regional Office) Draft Comprehensive Management Plan, Environmental Impact Statement, Juan Bautista de Anza National Historic Trail, Arizona and California 1994 N/A No 33821 Jones & Stokes Cultural Resources Inventory Report for the Ironhouse Sanitary District, Wastewater Treatment Plant Expansion, Contra Costa and Sacramento Counties, California 2007 N/A Yes 35196 William Self Associates, Inc. Cultural Resource Assessment, Delta Diablo Sanitation District and the City of Antioch, Recycled Water Pipeline Extension Project, Antioch, Contra Costa County, California 2006 Unspecified Linear Survey Yes 35861 Caltrans Historic Property Survey Report, District 4, Contra Costa County, Route BNSF RR, Post Mile 1146.1 to MP 1164.4 2009 Unspecified Linear Survey No 37097 William Self Associates, Inc. Cultural Resources Assessment Report Supplement Delta Diablo Sanitation District and the City of Antioch Recycled Water Pipeline Extension Project, Antioch, Contra Costa County, California 2010 Unspecified Linear Survey No 38226 LSA Associates, Inc. Revised Cultural Resources Assessment of the Accidental Discovery at the Antioch Marina Boat Launch Facility Project, Antioch, Contra Costa County, California (Corps File No. SPK-2004-00520; LSA Project No. CAN1002) 2010 N/A No The results of the records search indicate that areas along the creek have been previously surveyed for cultural resources through several linear and block surveys. The records search also determined that ten previously recorded historic-era cultural resources are located within one mile of the Project Area, but none were recorded within the Project Area (Table 2). 2012-140/West Antioch Creek-Culvert/ Cultural Resources Addendum 5 Table 2 – Previously Recorded Cultural Resources Within 1.0 Mile of the Project APE? Site Number CA-CCO- Primary Number P-07- Recorder and Year Age/ Period Site Description 718H 806 S. Ashkar 1998; J. Smallwood 2004; S. Atchley, G. Roark 1999 Historic Atchison, Topeka, and Santa Fe Railroad Line N/A 813 S. Baker 2006 Historic Southern Pacific: Northern Contra Costa Route N/A 2563 R. Harmon 2002 Historic Antioch Marina spoils site N/A 2779 M. Dobkin, W. Hill 2006 Historic Sycamore Park Subdivision N/A 2780 B. Larson, J. Cheney, M. Bunse 2002 Historic Hawthorne Hill Subdivision N/A 2784 B. Larson 2002 Historic John Marsh Elementary School N/A 2884 Site record missing from NWIC Historic Residence on 20th Street N/A 2885 M. Dobkin, W. Hill 2006 Historic 329 West 20th Street N/A 2886 M. Dobkin, W. Hill 2006 Historic 415 West 20th Street N/A 2887 Site record missing from NWIC Historic Residence on 20th Street Records The Office of Historic Preservation’s Directory of Properties, Historic Property Data File (OHP 2013a; dated 4/5/2012) did not include any properties within the Project Area; however, many properties were listed within the City of Antioch, primarily historic-era buildings and structures. The National Register Information System (National Park Service 2013) failed to reveal any listed or eligible properties within the Project Area. However, several listed properties are located nearby, including the Riverview Union High School located adjacent to the northwest portion of the Project Area, the R. B. Hard building located 0.55 mile northeast of the Project Area, and the Williamson Ranch located south of the City of Antioch. A review of California Historical Landmarks (OHP 1996) listed the nearest historical landmark as Number 932: Mount Diablo Coal Field, located 4.3 miles southwest of the Project Area. The OHP Website for California Historical Landmarks also lists the Mount Diablo Coal Field as the nearest landmark (OHP 2013). A review of Historic Spots in California (Kyle 2002) notes that the City of Antioch is located within the Rancho Los Medanos, meaning “the sandbanks.” The 8,859 acres of land was granted to Jose Noriega in 1835 and two years later he sold the land to John Marsh, a local doctor and scholar. Kyle (2002) describes the City of Antioch as being established by twin brothers, William Wiggin and Joseph Horton Smith, in December 1849. Originally called Smith’s Landing, the brothers established the first hotel and eating establishment, known as the New York House. When a group of settlers landed in San Francisco wishing to establish a colony, William Smith met them and convinced many of them to settle at Smith’s Landing. A review of 1500 California Place Names (Bright 1998) mentions that the residents named the City of Antioch during a picnic in 1851. The name comes from a city in Syria mentioned in the Bible. Historic federal government land patent records available on the BLM’s General Land Office (GLO) website (BLM 2013) revealed that the Project Area in Township 2 N, Range 1 E was part of the 8,859- acre Rancho Los Medanos land grant patented to Ellen Fallon, Michael Murray, Jonathan D. Stevenson, and James Welch on October 8, 1872 (Table 3). 2012-140/West Antioch Creek-Culvert/ Cultural Resources Addendum 6 Table 3 – GLO Land Patent Records Patentee Patent Date Serial Number Patent Type/Authority Location Ellen Fallon, Michael Murray, Jonathan D. Stevenson, James Welch 10/8/1872 CACAAA 000476 March 3, 1851: Grant- Spanish/Mexican (9 Stat. 631) 8,859 Acres The Project Area is parceled into multiple APNs with different sizes and land use descriptions. A search on the Contra Costa County Mapping Information website (Contra Costa County 2013) revealed that APN 074-130-060 consists of 83,800 square feet with a “commercial/auto agencies” land use description. APN 074-130-050 consists of 19,428 square feet with a “government owned/institutional” land use description. Database research for each APN was conducted, but not every parcel located within or adjacent to the Project Area is described here. The Caltrans Structure, Maintenance & Investigations website for state (Caltrans 2013a) and local (Caltrans 2013b) bridges did not list any historic bridges in or within one mile of the Project Area. The Handbook of North American Indians (Wilson and Towne 1978) lists the nearest Native American village as Chupcan, located approximately one mile east of the Project Area. Map Review and Aerial Photographs The review of historical aerial photographs and maps of the Project Area provide information on the past land uses of the property.  The 1908 (reprinted in 1951) USGS Antioch Creek, CA (1:62,500 scale) map does not indicate the West Antioch Creek in the approximate location of the Project Area.  Aerial photographs taken in 1939 show the Project Area as an undeveloped plot of land that appears to have been used for agricultural production. The portion of the West Antioch Creek within the Project Area is not clearly visible on the aerial photographs; however, a faint north/south line near the Project Area can be seen as connecting to the southern portion of the creek. The areas east of the Project Area appear to have been graded with east/west rows of unidentified objects.  The 1953 USGS Antioch North, CA (1:24,000 scale) map shows a building west of the Project Area near the intersection of West 10th and O Streets. This map also shows the westward extension of West 10th Street, directly south of the Project Area. The West Antioch Creek does not appear on the map.  Aerial photographs taken in 1958 show the Project Area primarily as open fields and the currently-standing Holiday Lodge. One building located directly east of the lodge facilities appears in the photos. The portion of West Antioch Creek within the Project Area appears on the photographs, heading north from the intersection of O and West 10th Streets, then curving northwest, and then heading straight north. The portion of the creek north of the Project Area continues to run straight north till it intersects West 4th Street (currently, the creek turns west between West 5th and West 6th streets, then north again to avoid commercial buildings along West 4th Street).  Aerial photographs from 1965 show several objects (possibly automobiles) within a parking lot and a large building (Ford dealership) directly west of the Project Area. The building located east of the Holiday Lodge complex still appears, and is located west of the Ford dealership building. The photographs also reveal that the West Antioch Creek concrete channel (current configuration) had been constructed around the perimeter of the parking lot. 2012-140/West Antioch Creek-Culvert/ Cultural Resources Addendum 7  The 1953 (Photorevised 1968) USGS Antioch North, CA (1:24,000 scale) map shows the addition of the creek alignment within the Project Area. Several additional buildings are located east and west of the Project Area.  The 1978 USGS Antioch North, CA (1:24,000 scale) map shows the Project Area and surrounding areas in their current state, with the addition of the apartment buildings located directly east of the northern end of the Project Area. In summary, the Project Area appears to have been originally used for agricultural purposes, which may have included crops or grazing, or both. Between 1939 and 1953, the portion of West 10th Street located directly south of the Project Area was constructed, as well as the Holiday Lodge complex on the western end of the Project Area. Between 1953 and 1958, West Antioch Creek appears to have been modified, creating a curve in a northwestern direction and moving the creek to the west. Between 1958 and 1965 the creek’s concrete channel within the Project Area had been constructed. When more buildings were constructed, other portions of the creek north of the Project Area were offset and redirected. The former Al Eames Ford dealership buildings located at 1400 West 10th Street in Antioch are in the Study Area. An historic structure evaluation including an architectural evaluation to determine if the Ford dealership buildings qualify for the National Register of Historic Places (NRHP) or the California Register of Historical Resources (CRHR) was completed. The Ford dealership buildings were evaluated as not eligible for the NRHP or the CRHR. The historic architectural evaluation report of the Ford dealership buildings is included as Attachment B. Native American Heritage Commission Native American consultation was initiated by contact with the California Native American Heritage Commission (NAHC) on 18 September 2013 to request a search of the Sacred Lands File for the Project Area. A response was received from the NAHC on 25 September 2013. Although the search failed to yield information on Native American cultural resources located within or adjacent to the project area, the NAHC provided a list of individuals and organizations in the Native American community that may be able to provide information about unrecorded sites in the project vicinity. The documentation of the original Native American coordination is presented within the previous inventory report in Attachment A. The updated sacred lands search and list of contacts obtained from the NAHC in 2013 is presented in Attachment E. Field Survey A pedestrian survey of the new areas added to the Project Area was completed on 23 August 2013. All accessible areas were surveyed within the project footprint, including the West Antioch Creek channel and all other areas used for soil stockpiling and hauling operations. The first area surveyed (APN-074-130-081) was an open grass field located in the southwestern portion of the project, proposed for soil stockpiling. This area consisted of a multi-leveled graded field with short, sparse grasses and weed vegetation. The ground surface was mostly visible with approximately 60 percent visibility. Due to the grading, the entire field has been disturbed and no cultural resources were identified. Several areas of modern refuse and transient camps were observed in the southern portions of the field. An area in the northern end of the project area (APN-074-040-044) consisting of a wide channel of the creek, was not accessible due to enclosed fencing from adjacent buildings as well as the railroad right-of- way. This area consisted primarily of tall reeds and overgrown creek vegetation, which was observed as 2012-140/West Antioch Creek-Culvert/ Cultural Resources Addendum 8 impenetrable. An additional football-shaped soil stockpiling area (APN-074-040-036) located along the west side of O Street and south of the railroad right-of-way could not be accessed due to a chain-link fence surrounding the perimeter. This area was observed from the east side of the fence and appeared to be graded with a surface of pavement and gravel with a concrete ditch set around the perimeter. Three other open fields proposed for soil stockpiling were surveyed at 15-meter transect intervals. These areas included parcels APN-074-130-076, APN-074-130-064, and a 200 by 200 foot parcel along the southwest intersection of 10th and O Streets. No newly identified cultural resources were observed within the surveyed areas. Status of Cultural Resources in the Project Area No archaeological sites were identified in the Project Area. The Project Area contains several buildings and structures that have been evaluated as not eligible. The West Antioch Creek Canal (EC-10-34) was evaluated as not eligible by ECORP (see Attachment A). The Eames Ford dealership buildings were also previously evaluated as not eligible by Mead & Hunt (see Attachment B). There are no cultural resources evaluated as eligible for the CRHR or NRHP in the Project Area. Therefore, no known Historical Resources, as defined by CEQA, will be impacted by the Project, and no known Historic Properties, as defined in Section 106 NHPA, will be affected. Unanticipated Discovery There remains a possibility that unrecorded cultural resources are present beneath the ground surface, and that such resources could be exposed during project construction. Both CEQA and Section 106 of the National Historic Preservation Act require the lead agency to address any unanticipated cultural resource discoveries during project construction. Therefore, ECORP recommends the following mitigation measures be adopted and implemented by the lead agency to reduce potential adverse impacts to less than significant. Mitigation Measure #1: Unanticipated Discovery: If subsurface deposits believed to be cultural or human in origin are discovered during construction, then all work must halt within a 100-foot radius of the discovery. A qualified professional archaeologist, meeting the Secretary of the Interior’s Professional Qualification Standards for prehistoric and historic archaeologist, shall be retained to evaluate the significance of the find, and shall have the authority to modify the no-work radius as appropriate, using professional judgment. A Native American monitor, following the Guidelines for Monitors/Consultants of Native American Cultural, Religious, and Burial Sites established by the Native American Heritage Commission, may also be required. Work cannot continue within the no-work radius until the archaeologist conducts sufficient research and data collection to make a determination that the resource is either 1) not cultural in origin; or 2) not potentially significant or eligible for listing on the NRHP or CRHR. If a potentially-eligible resource is encountered, then the archaeologist, lead agency, and project proponent shall arrange for either 1) total avoidance of the resource, if possible; or 2) test excavations to evaluate eligibility and, if eligible, total data recovery as mitigation. The determination shall be formally documented in writing and submitted to the lead agency as verification that the provisions in CEQA/NEPA for managing unanticipated discoveries have been met. 2012-140/West Antioch Creek-Culvert/ Cultural Resources Addendum 9 In the event that evidence of human remains is discovered, construction activities within 100 feet of the discovery will be halted or diverted and the requirements of Mitigation Measure #1 will be implemented. In addition, the provisions of Section 7050.5 of the California Health and Safety Code, Section 5097.98 of the California Public Resources Code, and Assembly Bill 2641 will be implemented. When human remains are discovered, state law requires that the discovery be reported to the County Coroner (Section 7050.5 of the Health and Safety Code) and that reasonable protection measures be taken during construction to protect the discovery from disturbance (AB 2641). If the Coroner determines the remains are Native American, the Coroner notifies the Native American Heritage Commission which then designates a Native American Most Likely Descendant (MLD) for the project (Section 5097.98 of the Public Resources Code). The designated MLD then has 48 hours from the time access to the property is granted to make recommendations concerning treatment of the remains (AB 2641). If the landowner does not agree with the recommendations of the MLD, the NAHC can mediate (Section 5097.94 of the Public Resources Code). If no agreement is reached, the landowner must rebury the remains where they will not be further disturbed (Section 5097.98 of the Public Resources Code). This will also include either recording the site with the NAHC or the appropriate Information Center; using an open space or conservation zoning designation or easement; or recording a document with the county in which the property is located (AB 2641). The Lead Agency is responsible for ensuring compliance with these mitigation measures because damage to significant cultural resources is in violation of CEQA and Section 106. Section 15097 of Title 14, Chapter 3, Article 7 of CEQA, Mitigation Monitoring or Reporting, “the public agency shall adopt a program for monitoring or reporting on the revisions which it has required in the project and the measures it has imposed to mitigate or avoid significant environmental effects. A public agency may delegate reporting or monitoring responsibilities to another public agency or to a private entity which accepts the delegation; however, until mitigation measures have been completed the lead agency remains responsible for ensuring that implementation of the mitigation measures occurs in accordance with the program.” If you have any questions or comments about the cultural resources supplemental report, please contact me at lwestwood@ecorpconsulting.com or by phone at (916) 782-9100. Questions regarding the Project may be directed to Chris Stabenfeldt at cstabenfeldt@ecorpconsulting.com or (916) 782-9100. Sincerely, Lisa Westwood, RPA Cultural Resources Manager Enclosures: Attachment A: Confidential Cultural Resources Inventory Report West Antioch Creek Public Safety Improvement Project, 2010* Attachment B: Historic Architectural Evaluation of the Former Al Ford Dealership Buildings, 2013 Attachment C: Updated Records Search Confirmation Attachment D: Updated Field Survey Photographs Attachment E: Updated Native American Coordination * Westwood and Pappas, 2010, Cultural Resources Inventory Report, West Antioch Creek Public Safety Improvement Project, City of Antioch, Contra Costa County, California, Project No. 2009-040 2012-140/West Antioch Creek-Culvert/ Cultural Resources Addendum 10 References Bright, William 1998 1500 California Place Names: Their Origin and Meaning. University of California Press, Berkeley and Los Angeles, California. Bureau of Land Management (BLM) 2013 Bureau of Land Management, General Land Office Records. Electronic document, http://www.glorecords.blm.gov/, accessed 5 September 2013 Caltrans 2013a Structure and Maintenance & Investigations, Historical Significance–State Agency Bridges website June 2009, Electronic Document, http://www.dot.ca.gov/hq/structur/strmaint/hs_state.pdf, accessed 5 September 2013. 2013b Structure and Maintenance & Investigations, Historical Significance–Local Agency Bridges website June 2009, Electronic Document, http://www.dot.ca.gov/hq/structur/strmaint/hs_state.pdf, accessed 5 September 2013. Clark, William B. 1975 2005 Gold Districts of California. California Department of Conservation, California Geological Survey, California Contra Costa County 2013 Contra Costa County California, Mapping Information Center, http://ccmap.us/, accessed 5 September 2013 Gudde, Erwin G. 1975 California Gold Camps: A Geographical and Historical Dictionary of Camps, Towns, and Localities Where Gold Was Found and Mined; Wayside Stations and Trading Centers. University of California Press, Berkeley and Los Angeles, California Kyle, Douglas 2002 Historic Spots in California. Stanford University Press. Stanford, California. National Park Service (NPS) 1983 Archaeology and Historic Preservation: Secretary of the Interior’s Standards and Guidelines. 48 FR (Federal Register) 44716-68. 2013 National Register Information System Website. Electronic document, http://www.nr. nps.gov/nrloc1.htm, accessed 28 August 2013. Office of Historic Preservation 2013 Office of Historic Preservation California Historical Landmarks Website, Electronic document. http://ohp.parks.ca.gov/?page_id=21387, accessed 28 August 2013. 2012 Directory of Properties in the Historic Property Data File for Contra Costa County. On file at NWIC, Sonoma State University, California. 1999 Directory of Properties in the Historical Resources Inventory 1996 California Historical Landmarks. California Department of Parks and Recreation, Sacramento, California. Wilson, N. L., and A. H. Towne 1978 Nisenan. In Handbook of North American Indians, Vol. 8: California, edited by R.F. Heizer, pp. 387-397. Smithsonian Institution, Washington, D.C. Figure 1. Project Location and Vicinity 2013-041 West Antioch Creek-Culvert Map Date: 9/18/2013 Service Layer Credits: Copyright:© 2012 DeLorme I 0 1,000 2,000 Scale in Feet Antioch North (1978, NAD27)CA 7.5-minute Topographic QuadrangleUS Geological Survey ›PROJECT ›PROJECT Location: N:\2012\2012-140 West Antioch Creek\MAPS\Cultural_Resources\CRM_Site_Vicinity\WAC_CRM_Vicinity.mxd (KO)-KOrtega 9/18/2013 Contra Costa County, CaliforniaRancho Los Medano Land GrantLatitude: 38° 0' 53" NLongitude: 121° 49' 33" WWatershed: Suisun Bay & San Joaquin Delta (18050001 & 1804003) Project Area - 26.83 acres Figure 2. Survey Coverage 2013-041 West Antioch Creek-Culvert Map Date: 9/19/2013 Service Layer Credits: Copyright:© 2012 DeLorme I 0 1,000 2,000 Scale in Feet Antioch North (1978, NAD27)CA 7.5-minute Topographic QuadrangleUS Geological Survey ›PROJECT Location: N:\2012\2012-140 West Antioch Creek\MAPS\Cultural_Resources\Overview_Maps\WAC_SurveyCoverage.mxd (KO)-KOrtega 9/19/2013 26.83 AcresContra Costa County, CaliforniaRancho Los Medano Land Grant Project Boundary Survey Coverage (15m Transects) No Access ATTACHMENT A Confidential Cultural Resources Inventory Report West Antioch Creek Public Safety Improvement Project, 2010 This Attachment contains information on the specific location of cultural resources. This information is not for publication or release to the general public. It is for planning, management and research purposes only. Information on the specific location of prehistoric and historic sites is exempt from the Freedom of Information Act and California Public Records Act. DRAFT CONFIDENTIAL Cultural Resources Inventory Report West Antioch Creek Public Safety Improvement Project City of Antioch, Contra Costa County, California Project No. 2009-040 Prepared For: Contra Costa County Public Works Department 255 Glacier Drive Martinez, California 94553 Prepared By: Lisa Westwood, RPA and Stephen Pappas ECORP Consulting, Inc. 2525 Warren Drive Rocklin, California 95677 July 2010 CONFIDENTIAL Cultural Resources Inventory Report CONTENTS West Antioch Creek Public Safety Improvement Project 1.0 MANAGEMENT SUMMARY ..................................................................................... 1 2.0 INTRODUCTION ..................................................................................................... 1 2.1 Project Location................................................................................................ 1 2.2 Project Description............................................................................................ 1 2.3 Area of Potential Effect...................................................................................... 4 2.4 Regulatory Context ........................................................................................... 4 2.5 Report Organization .......................................................................................... 6 3.0 SETTING ................................................................................................................. 7 3.1 Environmental Setting ....................................................................................... 7 3.2 Geology and Soils.............................................................................................. 7 3.3 Vegetation and Wildlife...................................................................................... 7 4.0 CULTURAL CONTEXT ............................................................................................. 8 4.1 Regional Prehistory ........................................................................................... 8 4.2 Ethnography..................................................................................................... 9 4.3 Regional History...............................................................................................10 4.5 Local History....................................................................................................11 4.5.1 Canals..................................................................................................12 4.6 Potential for Buried Resources ..........................................................................13 5.0 METHODS ..............................................................................................................13 5.1 Personnel Qualifications....................................................................................13 5.2 Records Search Methods ..................................................................................14 5.3 Native American Consultation Methods..............................................................15 5.4 Field Methods ..................................................................................................15 6.0 RESULTS ................................................................................................................16 6.1 Records Search................................................................................................16 6.1.1 Previous Research.................................................................................16 6.1.2 Records................................................................................................17 6.1.3 Map Review and Aerial Photographs.......................................................19 6.2 Native American Consultation Results................................................................20 6.3 Field Survey Results.........................................................................................20 6.3.1 Newly Identified Resources....................................................................26 6.3.2 Buildings and Structures........................................................................27 7.0 EVALUATION .........................................................................................................28 7.1 Federal Evaluation Criteria................................................................................28 7.2 State Evaluation Criteria ...................................................................................29 7.3 Research Topics for Canals...............................................................................30 8.0 EVALUATION .........................................................................................................35 8.1 West Antioch Creek Canal.................................................................................35 9.0 MANAGEMENT CONSIDERATIONS ......................................................................36 9.1 Conclusions .....................................................................................................36 9.2 Unanticipated Discovery ...................................................................................36 10.0 REFERENCES CITED .............................................................................................39 LIST OF FIGURES Figure 1. Project Site and Vicinity........................................................................................ 2 Figure 2. Area of Potential Effect and Coverage................................................................... 3 Figure 3. Project Alternatives.............................................................................................. 5 Figure 4. Inside vacant lot, adjacent to apartment complex (at left); view east toward O Street.................................................................................................................21 Figure 5. Canal, south of 10th Street, view north; car dealership in background at left..........22 Figure 6. Wooden boardwalk covering canal along car dealership property; view south towards 10th Street, with O Street at left. Main building of dealership at right........23 Figure 7. Project overview of central portion of canal (view west); secondary building of auto dealership in background.............................................................................24 Figure 8. View of unlined channel north of Project Area (view south), with apartment complex at left....................................................................................................25 Figure 9. Holiday Lodge building (center) and secondary building at auto dealership (right), view north. .............................................................................................26 LIST OF TABLES Table 1 – Known Cultural Studies In or Within 0.5 Mile of the Project Property ...................... 16 Table 2 – Known Cultural Resources In or Within 0.5 Mile of the Project Property.................. 17 Table 4 – GLO Land Patent Records .................................................................................... 18 LIST OF ATTACHMENTS Attachment A – Records Search Confirmation Attachment B – Native American Consultation Attachment C – Project Area Photographs Attachment D – Confidential Cultural Resource Site Locations and Site Records 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 1 1.0 MANAGEMENT SUMMARY In 2010, the Contra Costa County Public Works Department (CCCPWD) retained ECORP Consulting, Inc. (ECORP) to conduct a cultural resources inventory for the proposed West Antioch Creek Public Safety Improvements Project (Project). CCCPWD proposes to replace a culvert and concrete-lined ditch that conveys a portion of West Antioch Creek in the City of Antioch, Contra Costa County, California (Project Area). The purpose of the project is to alleviate flooding of the intersection of O Street and 10th Street, which is caused by an undersized ditch segment. The cultural resources inventory included a records search, literature review, and field survey. The records search results indicated that nine previous cultural resources studies have been conducted within one mile of the Project Area. As a result of those studies, no sites have previously been recorded within the Project Area; however, ten cultural resources have been recorded within one mile of the Project Area. As a result of the field survey, one cultural resource was recorded inside the Project Area: the West Antioch Creek Canal (EC-10-34). This resource has been evaluated at not eligible using the National Register of Historic Places (NRHP) and California Register of Historical Resources (CRHR) eligibility criteria. Recommendations for the selection of project alternatives and for the management of unanticipated discoveries are provided. 2.0 INTRODUCTION In May 2010, ECORP was retained by the CCCPWD to conduct a cultural resources inventory of the proposed Project Area located in the City of Antioch, Contra Costa County, California. A cultural resources survey of the property was required to identify potentially eligible cultural resources (archaeological sites and historic buildings, structures, and objects) that could be affected by the project. 2.1 Project Location The Project Area consists of approximately two acres of property located in an unsectioned portion (part of the Los Medanos land grant) of Township 2N, Range 1E, Mount Diablo Base and Meridian, as depicted on the 1978 Antioch North USGS 7.5’ topographic quadrangle map (Figures 1 and 2). The Project Area is situated west of O Street and generally north of 10th Street in the northwestern portion of the City. It traverses two Assessor Parcel Numbers (APNs): 074-130-060 (former Ford dealership) and 074-130-050 (vacant parcel). Adjacent properties that may be impacted include the apartment complex (APNs 074-130-056, -057, and -058) and the Holiday Lodge hotel (APN 074-130-077). 2.2 Project Description The Contra Costa County Flood Control and Water Conservation District (FC District) and the City of Antioch propose to replace the undersized culvert under 10th Street and a 650-foot long stretch of a concrete-lined ditch that both carry a segment of West Antioch Creek. The purpose 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 4 of the project is to alleviate flooding of the intersection of O Street and 10th Street, which is caused by an undersized ditch segment. Three alternatives to replace these facilities have been proposed, as detailed in the written project description provided by CCCPWD (March 3, 2010) (Figure 3). In all three options, the existing concrete-lined ditch, culvert, and wood-plank decking will ultimately be removed or filled in, and the new alignment will eliminate the nearly 90-degree bends in the existing channel. Alternative 1, the preferred alternative, involves the installation of a sub-grade box culvert that will preserve the most recent use of the former Ford dealership property. It will require the removal of the carport at the apartment complex, but there will be no impacts to the apartment buildings. Alternative 2 would include the installation of multiple box culverts and an open concrete-lined channel along the approximate path of Alternative 1. The use of an open channel through the former Ford dealership parking lot would eliminate future use in that capacity. No structures or buildings would be removed as a result of this alternative. Alternative 3 would use a combination of a multiple box culvert and an earthen channel that would be constructed west of the proposed alignments for Alternative 1 and 2. This alternative would require demolition of two buildings - the two former Ford dealership buildings and one the of Holiday Lodge hotel buildings. 2.3 Area of Potential Effect The Area of Potential Effects (APE) is illustrated in Figures 1 and 2 and also represents the survey coverage area. It is composed of an S-shaped alignment that measures approximately 300 feet wide and 2,000 feet long. The vertical APE depends upon the alternative selected; however, it is expected to extend no deeper than 15 feet below the surface. 2.4 Regulatory Context To meet the regulatory requirements of this project, this cultural resources investigation was conducted pursuant to the provisions for the treatment of cultural resources contained within Section 106 of the National Historic Preservation Act (NHPA) and in the California Environmental Quality Act (CEQA; Pub. Res. Code § 21000 et seq.). The goal of NHPA and CEQA is to develop and maintain a high-quality environment that serves to identify the significant environmental effects of the actions of a proposed project and to either avoid or mitigate those significant effects where feasible. CEQA pertains to all proposed projects that require state or local government agency approval, including the enactment of zoning ordinances, the issuance of conditional use permits, and the approval of development project maps. NHPA pertains to projects that entail some degree of federal funding or permit approval. 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 5 Figure 3. Project Alternatives. 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 6 NHPA and CEQA (Title 14, CCR, Article 5, Section 15064.5) apply to cultural resources of the historical and prehistoric periods. Any project with an effect that may cause a substantial adverse change in the significance of a cultural resource, either directly or indirectly, is a project that may have a significant effect on the environment. As a result, such a project would require avoidance or mitigation of impacts to those affected resources. Significant cultural resources must meet at least one of four criteria that define eligibility for listing on either the California Register of Historical Resources (CRHR) (Pub. Res. Code § 5024.1, Title 14 CCR, Section 4852) or the National Register of Historic Places (NRHP) (36 CFR 60.4). Cultural resources eligible for listing on the NRHP are automatically eligible for the CRHR. In anticipation of the possibility that the project may affect waters of the United States (U.S.), thereby requiring the project proponent to meet the requirements of Section 404 of the Clean Water Act and obtain a permit from the U.S. Army Corps of Engineers’ Sacramento District Regulatory Branch, this report is also in compliance with the 2007 Sacramento District Regulatory Branch Guidelines for Compliance with Section 106 of the National Historic Preservation Act of 1966, as amended. Moreover, because this project qualifies as a federal undertaking, regulations (36 CFR Part 800) implementing Section 106 of the National Historic Preservation Act (NHPA) require that cultural resources be identified and then evaluated using NRHP eligibility criteria. 2.5 Report Organization The following report documents the study and its findings and was prepared in conformance with the California Office of Historic Preservation’s Archaeological Resource Management Reports: Recommended Contents and Format. Attachment A includes a confirmation of the records search with the California Historical Resources Information System. Attachment B contains documentation of Native American Consultation. Attachment C presents photographs of the Project Area, and Attachment D includes confidential cultural resource site locations and site records. Sections 6253, 6254, and 6254.10 of the California Code authorize state agencies to exclude archaeological site information from public disclosure under the Public Records Act. In addition, the California Public Records Act (Government Code §6250 et seq.) and California’s open meeting laws (The Brown Act, Government Code §54950 et seq.) protect the confidentiality of Native American cultural place information. Likewise, the Information Centers of the California Historical Resources Information System maintained by the Office of Historic Preservation prohibit public dissemination of records search information. In compliance with these requirements, and those of the Code of Ethics of the Society for California Archaeology and the Register of Professional Archaeologists, the results of this cultural resource investigation were prepared as a confidential document, which is not intended for public distribution in either paper or electronic format. 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 7 3.0 SETTING 3.1 Environmental Setting The Project Area is located within the built environment of the City of Antioch, California. It is bounded to the east by residential development, and to the west by commercial development. Portions of the Project Area are paved. Apartment buildings and vacant lots are present on the northern and southern ends of the Project Area. The County Fairgrounds are also located directly south of the Project Area. The Project Area includes a channelized section of West Antioch Creek, which flows into the San Joaquin River, located approximately 0.5 mile north of the Project Area. Elevations range from 20 to 30 feet above mean sea level. 3.2 Geology and Soils The Natural Resources Conservation Service of the US Department of Agriculture lists two soil types present inside the Project Area: Brentwood Clay Loam and Sycamore Silty Clay Loam. Brentwood Clay Loam, which is present in the southern two thirds of the Project Area, is characterized as a well-drained alluvium that is derived from sedimentary rock. Sycamore Silty Clay Loam, which is mapped in the northern third of the Project Area, is described as a poorly- drained alluvium, also derived from sedimentary rock (United Stated Department of Agriculture (USDA) 2010). Interestingly, both soil types are characterized as having no flooding or ponding potential, which suggests that the flooding problems observed in the Project Area are related to increased runoff from paved surfaces upstream along West Antioch Creek. Given the presence of alluvium and the proximity to the San Joaquin River, there is a potential for buried subsurface cultural deposits. In addition, the location of any such deposits may not be predicable by the course of West Antioch Creek, as its channel was previously modified during earlier flood control efforts. 3.3 Vegetation and Wildlife The plant species found in this area include non-native weedy herbaceous species, such as wild oats (Avena sp.), ripgut brome (Bromus diandrus), soft chess (B. hordeaceus), prickly lettuce (Lactuca serriola), curly dock (Rumex crispus), tall white-top (Lepidium latifolium), dallis grass (Paspalum sp.), and mustard (Brassica sp.). Woody vegetation is limited to scattered ornamental species, such as fan palm (Washingtonia robusta). Wildlife species that may occur in this area include a variety of urban generalist species, such as American crow (Corvus brachyrhynchos), house finch (Carpodacus mexicanus), Brewer’s blackbird (Euphagus cyanocephalus), striped skunk (Mephitis mephitis), and house mouse (Mus musculus). 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 8 4.0 CULTURAL CONTEXT 4.1 Regional Prehistory It is generally believed that human occupation of California began at least 10,000 years before present (B.P.). The archaeological record indicates that between approximately 10,000 and 8,000 years B.P., a predominantly hunting economy existed, characterized by archaeological sites containing numerous projectile points and butchered large animal bones. Animals that were hunted probably consisted mostly of large species still alive today. Bones of extinct species have been found, but cannot definitely be associated with human artifacts. Although small animal bones and plant grinding tools are rarely found within archaeological sites of this period, small game and floral foods were probably exploited on a limited basis. A lack of deep cultural deposits from this period suggests that groups included only small numbers of individuals who did not often stay in one place for extended periods (Wallace 1978). Around 8,000 years BP, there was a shift in focus from hunting towards a greater reliance on plant resources, with a slight reduction in mobility. Archaeological evidence of this trend consists of a much greater number of milling tools (e.g., metates and manos) for processing seeds and other vegetable matter. The period from 10,000 B.P. to 5,500 years B.P. (8,000 to 3,500 B.C.) is referred to as the Early Holocene (Shell Bead Period Scheme D) or Lower Archaic (Economic Period) (Milliken et al. 2007). Sites associated with the later part of this time period, such as the Metcalf Creek Site (CA-SCL-178), Duncan's Landing Site (CA-SON-348/H), and a burial at CA-CCO-637, have numerous millingstones and handstones, along with a variety of wide-stemmed and leaf-shaped projectile points, characteristic of a diverse and mobile forager economic pattern (Fredrickson 1989a, cited in Milliken et al. 2007). The Early Period (Middle Archaic), between about 3,500 and 500 B.C. (5,500 and 2,450 years B.P.) showed the first indicators of decreased mobility and regional trade networks (Milliken et al. 2007). Olivella and Haliotis shell beads, sometimes associated with red ochre, began to appear in burials dating to this time period, such that rectangular Haliotis and Olivella beads are the markers of the Early Period bead horizon until 2,800 years ago (Ingram 1998; Wallace and Lathrop 1975; Gerow 1968; Milliken et al. 2007). Obsidian trade - particularly distribution of obsidian from the Clear Lake and Napa sources - began during this time period. The Lower Middle Period (Initial Upper Archaic) between 500 B.C. and A.D. 430 (2,450 and 1,520 years B.P.) is signaled by the virtual disappearance of the rectangular shell beads, which had been in use for the previous three millennia. They were replaced by split-beveled and tiny saucer Olivella beads, which have been interpreted as decorative and religious in function. The indicators for increasing sedentism that had begun in the Early Period continued during the Lower Middle Period, by which time thick, rich, black midden soils had accumulated at habitation sites, possibly indicating use of multi-seasonal residential bases. Bone and shell tools and ornaments began to appear as well (Milliken et al. 2007). The Upper Middle Period (Late Upper Archaic) between A.D. 430 and 1050 (1,520 and 900 years B.P.) was marked by a dramatic cultural disruption. The Olivella saucer bead network completely collapsed, and half of the sites were abandoned. The shell bead assemblages and burial patterns of this time period reflect a new cultural tradition emerging in the Bay Area, 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 9 referred to as the Meganos complex. The new cultural expressions that accompanied the Meganos complex may be associated with the arrival of a new group of people - one that preferred sea otter pelts for cloaks or vests and dorsal extended burials (Milliken et al. 2007). The Initial Late Period (Lower Emergent) and Terminal Late Period (Protohistoric) occurred between A.D. 1050 and 1550 (900 and 400 years B.P.) and between A.D. 1550 and 1776, respectively. These periods are characterized by fully shaped mortars, new Olivella and Haliotis bead types and ornaments, effigies, arrow-sized projectile points, and social elite control of obsidian, which point towards an increase in social stratification. The Terminal Late Period was characterized by the emergence of clam shell disk beads, which abruptly replaced the signature Olivella bead types. Some suggest that the change in shell bead types, mortuary wealth distribution, and technology shifts was a result of populations exceeding the environment's carrying capacity, or forced migrations due to conflict, or both (Milliken et al. 2007). 4.2 Ethnography Ethnographically, the Project Area lies in the Bay Miwok portion of Eastern Miwok territory, a narrow band of land that stretches between present-day Walnut Creek and Mount Diablo on the west and up the Consumnes and Mokelumne rivers southeast of Sacramento, California. The Eastern Miwok have been divided into two areas: the Bay Miwok and the Plains Miwok. The territory of the Bay Miwok extended eastwards from Walnut Creek in the eastern portion of Contra Costa County to the Sacramento-San Joaquin delta. The Plains Miwok inhabited the southern drainages of the Mokelumne and Consumnes rivers and both banks of the Sacramento River from Rio Vista to Freeport (Levy 1978). Plains and Bay Miwok are each part of a distinct language group which covered a large geographic area. However, politically the Miwok were divided into much smaller groups known as tribelets. Each tribelet, containing 100 to 500 inhabitants, was an independent polity that controlled all natural resources within a defined boundary. The Settlements within a tribelet included semi-permanent settlements and a larger number of seasonally occupied campsites, used for hunting, fishing, and gathering when away from the permanent settlement. One tribelet near Antioch, Chupcan, is documented as having been occupied during the early Historic period (1804 to 1812) (Levy 1978). Tribelets were composed of several settlements. The capital of the tribelet was the principal settlement where the chief of the tribelet resided. The capital contained a subterranean assembly house and a mourning/ceremonial house. Residential structures were typically conical and covered with bark or thatched tule with a central pole support. Tule balsa boats and nets made from hemp and milkweed were used for fishing. The bow and arrow was common for hunting land mammals. Hunted animals included deer, elk, antelope, bear, and a variety of small mammals. Fish, mussels, clams, and snails were common staples. Seeds, oats, acorns, pine nuts, mushrooms, greens, roots, and berries were gathered. Some burning of meadows was practiced to increase the harvest of seeds and to lure deer to new growth (Levy 1978). The Eastern Miwok first encountered Spanish exploratory groups in the second half of the eighteenth century. Towards the end of the 1700s, Spanish missions near the coast attempted to bring Eastern Miwok to the coastal missions to replenish the declining native populations at 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 10 the missions. The first half of the nineteenth century marks a period of decline in the native population as a result of missionization and the spread of epidemics of European diseases. As a way of resisting Spanish incursions, the Eastern Miwok seemed to have formed groups consisting of multiple tribelets in order to assemble larger fighting forces against the Spanish. During this period, the Eastern Miwok diet was supplemented by beef and horse meat obtained during raids on Spanish herds. During the 1840s, an influx of settlers made up of Euro- Americans brought with them a new wave of diseases. Plains Miwok in the Central Valley became involved in agricultural work on the big land-grant ranchos and in gold mining at the start of the gold rush. The population of the Eastern Miwok drastically dwindled during the 19th Century. The population was estimated at nearly 20,000 in 1805. By 1950, only approximately 100 Eastern Miwok were known to remain, mostly on reservations (Levy 1978). 4.3 Regional History The first significant European settlement of California began during the Spanish Period (1769 to 1821) when 21 missions and four presidios were established between San Diego and Sonoma. Although located primarily along the coast, the missions dominated the majority of the California region during this period. The purpose of the missions and presidios was to establish Spanish economic, military, political, and religious control over the Alta California territory. This included the forced movement of much of the native population to the missions, followed by conversion to Catholicism and instruction in Spanish crafts and agriculture (Castillo 1978; Cleland 1941). During the Spanish period several Spanish exploratory expeditions led by Fages, Portolá, Crespi, Anza, Rivera, and Moraga passed through the Project vicinity to explore the Central Valley (Levy 1978:486). The initial Spanish exploration of the San Ramon, Amador, and Livermore Valleys took place between 1769 and 1810 (Levy 1978). The Mexican Period (1822 to 1848) began with the success of the Mexican Revolution in 1821, but the Spanish mission system continued until the 1830s when the Mexican government secularized the missions. The vast land holdings of the missions in California were divided into large land grants called ranchos. The Mexican government granted ranchos along the coast and in the Central Valley to Mexican soldiers and settlers (Castillo 1978). Following the secularization of the missions in 1833, the Project area became part of the land included in the Rancho los Medanos ("The Sand Hills"), granted to Jose Noriega on July 24, 1835. The Rancho los Meganos consisted of four leagues between Mt. Diablo and Brentwood (Cowan 1956). In 1837, Noriega sold Los Maganos to John Marsh for $500 (Emanuels 1993; Bramlette et al. 1991). Marsh built what became known as the "Stone House" on the rancho in 1856 (Emanuels 1993). John Sutter, a European immigrant, built a fort at the confluence of the Sacramento and American Rivers in 1839 and petitioned the Mexican governor of Alta (Upper) California for a land grant which he received in 1841. Sutter built a flour mill and grew wheat near the fort (Bidwell 1971). Gold was discovered in the flume of Sutter’s lumber mill at Coloma on the South Fork of the American River in January 1848 (Marshall 1971). That same year, the Treaty of Guadalupe Hidalgo ended the Mexican-American War and marked the beginning of the 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 11 American Period (1848 to present). California became a U. S. territory in 1848 and a state in 1850. The discovery of gold initiated the 1849 California Gold Rush, bringing thousands of miners and settlers to California, most of whom settled in the north. 4.5 Local History Contra Costa County is one of the original 27 California counties that were created upon statehood in 1850, with roots in grazing, agriculture, and coal mining, the latter of which took place at the same time as the Gold Rush. In 1848, coal was discovered on the northern slopes of Mount Diablo, attracting immigrants from all over the world, who settled in boomtowns. By 1880, the coal boom had collapsed, leaving many of those towns abandoned. However, the population centers of Pittsburgh, Antioch, and Brentwood, as well as the railroads and road networks that were built to transport coal and passengers, remained and were utilized in subsequent industries, such as sand mining and orchard crops (Estes et al. 2006; Kyle 2002). Although the coal industry was largely replaced with agriculture by 1880, grazing and crop raising had always been an important part of the county's economy. In 1852, S. Hastings, the Contra Costa County Assessor, reported an "estimate of the aggregate quantity of tillable land in this county is 132,500 acres. Grazing land, 53,000 acres. The amount of Government land is probably 4,000 acres." Cattle and barley, along with broom corn, were the dominant livestock and crops raised in the county (Hastings 1852 in Eddy 1852). In 1857, possibly driven by the demand for beef created by the Gold Rush (Bramlette et al. 1991), nearly 80 percent of the land within Contra Costa County was cultivated, primarily with wheat and barley, and was one of the leading egg producers in the state. It is, therefore, no coincidence that cattle and chickens were also the dominant animals raised (Higley 1858). According to J.J. White, County Assessor in 1861 (Higley 1861): "The valleys in this county extend all the way from fifteen to twenty miles, and are well watered. Even on the hills and mountains innumerable springs are found affording excellent pasture the whole year round for stock of all kinds. Cattle and sheep have done very well; the prices for them are very low and discouraging. Considerable improvement is continually going on in all descriptions of stock- raising in this county-particularly in sheep and horses; the latter, as exhibited at our county Fair, showed that no little attention or pains were taken to improve the breed. In the business of sheep-raising it is certainly difficult to select a better locality, both as to climate and advantages of pasturage, and several persons have taken advantage of the same, as can be seen by the numerous herds that are grazing in the different valleys all over the county. Nor have I heard of any disease existing among them, other than what can be easily remedied by proper care and attention." The City of Antioch was established by two twin brothers from Maine, William Wiggin Smith and Joseph Horton Smith, who arrived in California in July 1849. The twins were carpenters by trade, as well as ordained ministers. Seeking a new life out West, the two brought their families and began working as carpenters at the New York of the Pacific (now the City of Pittsburg, 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 12 approximately 4.5 miles west of Antioch). Dr. John Marsh offered the brothers two-quarter sections of land located on his Los Maganos Rancho (Kyle 2002). The brothers continued to work at the New York of the Pacific while maintaining their newly acquired land, which they had named Smith’s Landing. Eventually, the brothers established a restaurant and hotel called the New York House, primarily used by miners and other travelers heading east during the Gold Rush. In February of 1850, Joseph died of malaria, leaving his brother with both quarter sections of land (Kyle 2002). In summer of 1851, William received word that a ship of New Englanders landing in San Francisco were looking to establish a colony on the west coast. Eager to attract people onto his land, William met the group of colonists in San Francisco and offered them parcels on which to build homes and create a community. Approximately half of the colonists accepted the offer, while several others headed east to strike it rich in the gold-bearing areas of the Sierra foothills. The name of Antioch was finally chosen at the 1851 Fourth of July picnic held at William’s house (Kyle 2002). Over the years, Antioch slowly grew with the local grazing, agriculture, and mining industries and remained a key city within Contra Costa County. 4.5.1 Canals The need to control the flow of water in Contra Costa County was realized in the early part of the 20th century. According to JRP and Caltrans (2000:76-77), the US Bureau of Reclamation (USBR) constructed the Central Valley Project’s (CVP) first canal in 1937, a 46-mile long canal named the Contra Costa Canal, located west of the current Project Area: This canal was designed primarily to provide water for industries threatened by salinity intrusions into Suisun Bay. It was included in the CVP at least in part as a concession to politically and economically powerful industries which might have otherwise opposed the CVP on the grounds that the project would have increased their salinity problems. These influential companies promoted the “Contra Costa County Conduit” concept, which was supported by the State Water Plan Authority (Jackson and Paterson 1977) The USBR opened an office in Antioch in 1936 and began surveys of the proposed route. Over the next two years, studies settled on a canal design with a capacity of 350 cfs. As this volume exceeded the USBR’s design, the Contra Costa Water District agreed to pay the extra $500,000 to expand the canal. Construction was underway even before the canal’s final capacity had been set. By 1940, the facility had reached Pittsburg, and test pumping began that July (Jackson and Paterson 1977) The canal had reached 38 miles west of the Rock Slough intake when the entire CVP was classified as a “limited defense activity,” and in May 1942, work was suspended for the duration of World War II. Construction resumed after the War Production Board returned control of the CVP to the USBR in September 1945, 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 13 and the Contra Costa Canal system was completed in 1948 (Jackson and Paterson 1977). Contra Costa Canal within the CVP was to deliver water to “an upland agricultural area, many industrial plants in the upper Bay region, and a number of Contra Costa County municipalities.” The Contra Costa County Water District purchased the water from the USBR and sold it to local retailers. It has continued to do so since the first “interim contract” with the Bureau between 1948 and 1951, and by a finalized agreement since that date (Jackson and Paterson 1977) The Contra Costa Canal gradually diminishes in size as it wends its way west from its intake at Rock Slough in the Delta to its terminus in Martinez. It is predominantly open and concrete lined, with occasional piped segments laid underground. Siphons, like that on Kirker Creek, carry the canal across major drainages, while small or intermittent waterways pass beneath the canal in culverts. Wasteways and turnouts are provided at regular intervals to drop water to consuming industries along the margin of Suisun Bay. At Port Chicago, the canal swings south and passes through Concord and Pleasant Hill before swinging north to Pacheco and terminating in Martinez Reservoir (Robinson 1979). 4.6 Potential for Buried Resources Based on the development within and surrounding the Project Area, the potential for buried resources is low. Prior to urban development, the Project Area was used for agricultural production. Both the agriculture and the urban development have altered the original landscape. 5.0 METHODS 5.1 Personnel Qualifications All phases of the cultural resources investigation were conducted by Registered Professional Archaeologist Lisa Westwood, who meets the Secretary of the Interior’s Professional Qualifications Standards for prehistoric and historical archaeologist. Stephen Pappas co- authored the report, and Dr. Roger Mason, RPA provided technical report review and quality assurance. Resumes are available upon request. Lisa Westwood is a Registered Professional Archaeologist who meets the Secretary of the Interior’s Professional Qualifications Standards for prehistoric and historical archaeologist with more than 15 years of cultural resource management, contract archaeology, museum curation, and teaching experience in northern and central California, southern Utah, New Mexico, and the Midwest. She holds a B.A. degree in Anthropology and an M.A. degree in Anthropology (Archaeology). She has participated in or supervised numerous survey, testing, and data recovery excavations, has recorded and mapped hundreds of prehistoric and historical sites, and has cataloged, identified, and curated hundreds of thousands of artifacts. She has 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 14 conducted evaluations of cultural resources for eligibility to the National Register of Historic Places and California Register of Historical Resources and is well versed in impact assessment and development of mitigation measures for CEQA and Section 106 (NHPA) projects. She has authored or co-authored more than 150 cultural resources management reports. Stephen Pappas is a Staff Archaeologist and Field Director for ECORP and has six years of experience in cultural resources management, primarily in California and New Mexico. He holds a B.A. degree in Anthropology and has participated in all aspects of archaeological fieldwork, including survey, test excavation, data recovery, and construction monitoring. He has extensive familiarity in meeting the cultural resource requirements of the California Environmental Quality Act (CEQA) and Section 106 of the National Historic Preservation Act. Roger Mason meets the Secretary of the Interior’s Professional Qualifications Standards for prehistoric and historical archaeologist, holding a B.A. degree and a Ph.D. in Anthropology (Archaeology). He is the author of over 200 reports dealing with cultural resource surveys, evaluations, and mitigation programs in California. In addition to comprehensive knowledge of cultural resource management activities, he is adept in the management of many types of projects, supervision and coordination of subconsultants, supervision and training of employees, client relations, federal/state/tribal liaison activities, federal contracting, and proposal and bid preparation. In addition to the numerous technical and professional reports that he has prepared over the years, Dr. Mason has written published articles and monographs, presented professional papers, and provided public lectures. He is a certified member of the Register of Professional Archaeologists. 5.2 Records Search Methods A records search for the property was completed at the Northwest Information Center (NWIC) on 26 May 2010 (NWIC search #09-1497; Attachment A). The purpose of the records search was to determine the extent of previous surveys within a one-mile (1,600-meter) radius of the proposed project location, and whether previously documented prehistoric or historic archaeological sites, architectural resources, or traditional cultural properties exist within this area. In addition to the official records and maps for archaeological sites and surveys in Contra Costa County, the following historic references were also reviewed: Historic Property Data File for Contra Costa County (Office of Historic Preservation (OHP) 2010a); The National Register Information System website (National Park Service 2010); Office of Historic Preservation, California Historical Landmarks website (OHP 2010b); California Historical Landmarks (OHP 1996 and updates); Gold Districts of California (Clark 2005); California Gold Camps (Gudde 1975); 1500 California Place Names (Bright 1998); Directory of Properties in the Historical Resources Inventory (1999); Caltrans Local Bridge Inventory (Caltrans 2010b); Caltrans State Bridge Inventory (Caltrans 2010a); and Historic Spots in California (Kyle 2002). Other references examined include a property search with the Contra Costa County Mapping Information website (Contra Costa County 2010), historic GLO land patent records (BLM 2010), and numerous aerial photographs taken between 1939 and 2010. Historic maps reviewed include: 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 15  1908 (reprinted in 1951) USGS Antioch Creek, CA (1:62,500 scale)  1953 USGS Antioch North, CA (1:24,000 scale)  1953 (Photorevised 1968) USGS Antioch North, CA (1:24,000 scale)  1978 USGS Antioch North, CA (1:24,000 scale) Letters requesting historical information relevant to the Project Area were sent to the Antioch Historical Society and the Contra Costa County Historical Society in order to solicit comments or obtain historical information that either repository might have regarding events, people, or resources of historical significance in the area (Attachment A). 5.3 Native American Consultation Methods ECORP contacted the California Native American Heritage Commission (NAHC) on 14 May 2010 to request a search of the sacred land files for the Project Area. ECORP contacted all persons or organizations recommended by the NAHC by letter on 25 May 2010 to request information on unrecorded cultural resources that may exist within the current Project Area, or to inquire about any concerns regarding sacred sites or traditional cultural properties in the vicinity that might be affected by the proposed action. Each individual was subsequently telephoned on 28 and 30 June 2010 to ensure that the materials had been received and to further solicit comments (Attachment B). 5.4 Field Methods On 2 June 2010, the entire Project Area was subjected to an intensive pedestrian survey under the guidance of the Secretary of the Interior's Standards for the Identification of Historic Properties (National Park Service 1983) using transects spaced 10 meters apart. A total of one person-day was expended in the field. At that time, the ground surface was examined for indications of surface or subsurface cultural resources. The general morphological characteristics of the ground surface were inspected for indications of subsurface deposits that may be manifested on the surface, such as circular depressions or ditches. Whenever possible, the locations of subsurface exposures caused by such factors as rodent activity, water or soil erosion, or vegetation disturbances were examined for artifacts or for indications of buried deposits. No subsurface investigations or artifact collections were undertaken during the pedestrian survey. All cultural resources encountered during the survey were recorded using Department of Parks and Recreation 523-series forms approved by the California Office of Historic Preservation. The resources were photographed, mapped, and sketched as necessary to document their presence. Isolates were to be recorded with a Primary Record and Location Map, while sites were to be recorded with a Primary Record, Archaeological Site Record, Location Map, Sketch Map, and any other pertinent forms. Any cultural resource that contained at least three artifacts in a ten square-meter area or consisted of one or more features was considered a site. Any indications of cultural presence in the Project Area that failed to meet the definition of a site were recorded as isolates or were noted on a location map. 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 16 6.0 RESULTS 6.1 Records Search The records search consisted of a review of previous research and literature, records on file with the NWIC for previously recorded resources, and historical aerial photographs and maps of the vicinity. 6.1.1 Previous Research Nine previous cultural resource investigations have been conducted within one mile of the property, covering approximately 15 percent of the total area surrounding the property within the record search radius (Table 1). These studies revealed the presence of historical sites including railroads, refuse dumps, residences, and school buildings. The previous studies were conducted between 1976 and 2007 and vary in size from 1.74 acres to 7,000 acres. Table 1 – Known Cultural Studies In or Within 0.5 Mile of the Project Property Report Number Author(s) Report Title Year Area Covered Includes Project Area 11826 Theodoratus Cultural Research Montezuma I & II Cultural Resources 1980 N/A No 13256 Allan G. Bramlette, et al. Archaeological Resources Inventory for Los Vaqueros Water Conveyance Alignments, Contra Costa County, California 1991 7,000 Acres Yes 18352 Busby, Colin I. Assessment of Archaeological Resources: East/Central Contra Costa County Wastewater Management Plan 1976 N/A Yes 21181 Basin Research Associates Cultural Resources Assessment- Proposed Housing Site Between West 7th and 9th Streets and I Street, City of Antioch, Contra Costa County, California 1997 1.74 Acres No 22812 Basin Research Associates Contra Costa County Water Multipurpose Pipeline Project, Environmental Documentation Study, Cultural Resources Review 1997 Unspecified Linear Survey Yes 31405 William Self Associates, Inc. Archaeological Survey and Cultural Resources Assessment for the City of Antioch’s proposed Antioch Recycled Water Pipeline project 2006 Unspecified Linear Survey Yes 33545 National Park Service (Western Regional Office) Draft Comprehensive Management Plan, Environmental Impact Statement, Juan Bautista de Anza National Historic Trail, Arizona and California 1994 N/A No 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 17 Table 1 – Known Cultural Studies In or Within 0.5 Mile of the Project Property (Continued) Report Number Author(s) Report Title Year Area Covered Includes Project Area 33821 Jones & Stokes Cultural Resources Inventory Report for the Ironhouse Sanitary District, Wastewater Treatment Plant Expansion, Contra Costa and Sacramento Counties, California 2007 N/A Yes 35196 William Self Associates, Inc. Cultural Resource Assessment, Delta Diablo Sanitation District and the City of Antioch, Recycled Water Pipeline Extension Project, Antioch, Contra Costa County, California 2006 Unspecified Linear Survey Yes The results of the records search indicate that areas along the creek have been previously surveyed for cultural resources through several linear and block surveys. The records search also determined that ten previously recorded historic-era cultural resources are located within one mile of the Project Area (Table 2). Table 2 – Known Cultural Resources In or Within 0.5 Mile of the Project Property Site Number CA-CCO- Primary Number P-07- Recorder and Year Age/ Period Site Description 718H 806 S. Ashkar 1998; J. Smallwood 2004; S. Atchley, G. Roark 1999 Historic Atchison, Topeka, and Santa Fe Railroad Line N/A 813 S. Baker 2006 Historic Southern Pacific: Northern Contra Costa Route N/A 2563 R. Harmon 2002 Historic Antioch Marina spoils site N/A 2779 M. Dobkin, W. Hill 2006 Historic Sycamore Park Subdivision N/A 2780 B. Larson, J. Cheney, M. Bunse 2002 Historic Hawthorne Hill Subdivision N/A 2784 B. Larson 2002 Historic John Marsh Elementary School N/A 2884 Site record missing from NWIC Historic Residence on 20th Street N/A 2885 M. Dobkin, W. Hill 2006 Historic 329 West 20th Street N/A 2886 M. Dobkin, W. Hill 2006 Historic 415 West 20th Street N/A 2887 Site record missing from NWIC Historic Residence on 20th Street 6.1.2 Records The Office of Historic Preservation’s Directory of Properties, Historic Property Data File (OHP 2010a; dated 2/8/2010) did not include any properties within the Project Area; however, many properties were listed within the City of Antioch, primarily historic-era buildings and structures. The National Register Information System website (National Park Service 2010) failed to reveal any listed or eligible properties within the Project Area; however, the R. B. Hard building is 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 18 located 0.55 mile northeast of the Project Area, the Riverview Union High School is located 0.3 mile to the northwest, and the Williamson Ranch is located south of the City of Antioch. A review of California Historical Landmarks (OHP 1996) listed the nearest historical landmark as Number 932: Mount Diablo Coal Field, located 4.3 miles southwest of the Project Area. The OHP Website for California Historical Landmarks also lists the Mount Diablo Coal Field as the nearest landmark (OHP 2010). A review of Historic Spots in California (Kyle 2002) notes that the City of Antioch is located within the Rancho Los Medanos, meaning “the sandbanks.” The 8,859 acres of land was granted to Jose Noriega in 1835 and two years later he sold the land to John Marsh, a local doctor and scholar. Kyle (2002) describes the City of Antioch as being established by twin brothers, William Wiggin and Joseph Horton Smith, in December 1849. Originally called Smith’s Landing, the brothers established the first hotel and eating establishment, known as the New York House. When a group of settlers landed in San Francisco wishing to establish a colony, William Smith met them and convinced many of them to settle at Smith’s Landing. A review of 1500 California Place Names (Bright 1998) mentions that the residents named the City of Antioch during a picnic in 1851. The name comes from a city in Syria mentioned in the Bible. Historic federal government land patent records available on the BLM’s General Land Office (GLO) website (BLM 2010) revealed that the Project Area in Township 2 North, Range 1 East was part of the 8,859-acre Rancho Los Medanos land grant patented to Ellen Fallon, Michael Murray, Jonathan D. Stevenson, and James Welch on October 8, 1872 (Table 3). Table 3 – GLO Land Patent Records Patentee Patent Date Serial Number Patent Type/Authority Location Ellen Fallon, Michael Murray, Jonathan D. Stevenson, James Welch 10/8/1872 CACAAA 000476 March 3, 1851: Grant- Spanish/Mexican (9 Stat. 631) 8,859 Acres A search on the Contra Costa County Mapping Information website (Contra Costa County 2010) revealed that APN 074-130-060 consists of 83,800 square feet with a “commercial/auto agencies” land use description. APN 074-130-050 consists of 19,428 square feet with a “government owned/institutional” land use description. The Caltrans Structure, Maintenance & Investigations website for state (Caltrans 2010a) and local (Caltrans 2010b) bridges did not list any historic bridges in or within 1.0 mile of the Project Area. 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 19 The Handbook of North American Indians (Wilson and Towne 1978) lists the nearest Native American village as Chupcan, located approximately one mile east of the Project Area. From 1804 to 1812, an estimated 103 Chupcan villagers were baptized. No responses from the letters sent to the Antioch Historical Society or the Contra Costa County Historical Society have been received to date. 6.1.3 Map Review and Aerial Photographs The review of historical aerial photographs and maps of the Project Area provide information on the past land uses of the property.  The 1908 (reprinted in 1951) USGS Antioch Creek, CA (1:62,500 scale) map does not indicate the West Antioch Creek in the approximate location of the Project Area.  Aerial photographs taken in 1939 show the Project Area as an undeveloped plot of land that appears to have been used for agricultural production. The portion of the West Antioch Creek within the Project Area is not clearly visible on the aerial photographs; however, a faint north/south line near the Project Area can be seen as connecting to the southern portion of the creek. The areas east of the Project Area appear to have been graded with east/west rows of unidentified objects.  The 1953 USGS Antioch North, CA (1:24,000 scale) map shows a building west of the Project Area near the intersection of West 10th and O Streets. This map also shows the westward extension of West 10th Street, directly south of the Project Area. The West Antioch Creek does not appear on the map.  Aerial photographs taken in 1958 show the Project Area primarily as open fields and the currently-standing Holiday Lodge. One building located directly east of the lodge facilities appears in the photos. The portion of West Antioch Creek within the Project Area appears on the photographs, heading north from the intersection of O and W 10th Streets, then curving northwest, and then heading straight north. The portion of the creek north of the Project Area continues to run straight north till it intersects West 4th Street (currently, the creek turns west between West 5th and West 6th streets, then north again to avoid commercial buildings along West 4th Street.  Aerial photographs from 1965 show several objects (possibly automobiles) within a parking lot and a large building (Ford dealership) directly west of the Project Area. The building located east of the Holiday Lodge complex still appears, and is located west of the Ford dealership building. The photographs also reveal that the West Antioch Creek concrete channel (current configuration) had been constructed around the perimeter of the parking lot.  The 1953 (Photorevised 1968) USGS Antioch North, CA (1:24,000 scale) map shows the addition of the creek alignment within the Project Area. Several additional buildings are located east and west of the Project Area. 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 20  The 1978 USGS Antioch North, CA (1:24,000 scale) map shows the Project Area and surrounding areas in their current state, with the addition of the apartment buildings located directly east of the northern end of the Project Area. In summary, the Project Area appears to have been originally used for agricultural purposes, which may have included crops or grazing, or both. Between 1939 and 1953, the portion of West 10th Street located directly south of the Project Area was constructed, as well as the Holiday Lodge complex on the western end of the Project Area. Between 1953 and 1958, West Antioch Creek appears to have been modified, creating a curve in a northwestern direction offsetting the creek to the west. Between 1958 and 1965 the creek’s concrete channel within the Project Area had been constructed. While more buildings were constructed, other portions of the creek north of the Project Area were offset and redirected. 6.2 Native American Consultation Results A search of the Sacred Land File by the NAHC failed to indicate the presence of Native American cultural resources in the Project Area. Follow-up telephone calls were successful in gathering comments on the proposed project from the list of Native American contacts provided by the NAHC. Both Andrew Galvan of the Ohlone Indian Tribe and Ramona Garibay of the Trina Marine Ruano Family had no concerns or knowledge of any resources within the Project Area. Two detailed telephone messages were left for Katherine Erolinda Perez, but no responses have been received. A record of all correspondence is provided in Attachment B. If any additional comments are received after the submission of this report, then they will be forwarded to the lead agencies for further consideration and appropriate action. 6.3 Field Survey Results Due to access issues, the field survey was carried out in sections. Using a gate key provided by CCCPWD, the fenced vacant lot located directly south of the apartment complex was first surveyed. The lot was heavily vegetated with annual weeds and plants, and had a large concentration of modern urban trash, such as bottles, plastic, shoes, CDs, and roof shingles, which appeared to have been thrown over the fence from the apartments or from the sidewalk along O Street (Figure 4). None of the debris was identified as historical and therefore, was not recorded or given further consideration in the current study. 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 21 Figure 4. Inside vacant lot, adjacent to apartment complex (at left); view east toward O Street. The canal corridor was surveyed in sections. The portion south of 10th Street was accessed from the fairgrounds property. This portion of the canal was unlined and channeled water northward, under 10th street by a pair of culverts (Figure 5). The channel was approximately 10 feet wide; due to the presence of flowing water, the depth could not be determined. No evidence for cultural resources, other than the canal itself, was identified in this portion of the survey area. 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 22 Figure 5. Canal, south of 10th Street, view north; car dealership in background at left. The portion of the canal that traversed along the eastern side of the car dealership property was found to be improved, either by concrete lining or with a 20-foot wide wooden boardwalk, or both. As a result of the high percentage of pavement or concrete cover, very little natural ground surface was visible. On the northern side of 10th Street, the canal emerges from culverts as a concrete lined canal, covered by a wooden boardwalk for approximately 200 feet, upon which cars were parked at the time of the survey (Figure 6). No evidence for cultural resources, other than the canal itself, was identified in this portion of the survey area. 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 23 Figure 6. Wooden boardwalk covering canal along car dealership property; view south towards 10th Street, with O Street at left. Main building of dealership at right. North of the boardwalk, the canal is again open, and concrete lined, as it makes two nearly 90- degree bends around the car dealership and apartment buildings (Figure 7). The canal measures approximately 20 feet wide (top of bank to top of bank), but due to flowing water, the depth could not be determined. Thick natural vegetation is present between the concrete and chain link fences on either side of the canal, making a pedestrian survey of the portion of the canal shown in Figure 7 very dangerous and impossible. However, those portions of the canal were easily viewed from the other side of the chain link fence, so that survey coverage was complete. No evidence for cultural resources, other than the canal itself, was identified in this portion of the survey area. 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 24 Figure 7. Project overview of central portion of canal (view west); secondary building of auto dealership in background. North of the second bend, and adjacent to the apartment complex, the canal returns to an earthen lining, supported by stone rip-rap in some places (Figure 8). Proceeding northward, outside of the project area, the channel takes on a braided configuration, and is filled with large quantities of modern urban trash. The entire channel from the end of the concrete to its terminus at 4th Street was surveyed. No evidence for cultural resources, other than the canal itself, was identified in this portion of the survey area. 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 25 Figure 8. View of unlined channel north of Project Area (view south), with apartment complex at left. Finally, the paved portion of the Project Area around the auxiliary building of the Holiday Lodge complex and the secondary automotive building next to the former Ford dealership was also surveyed (Figure 9). The building was found to be in disrepair, as the majority of the complex appears to have been abandoned. No evidence for cultural resources, other than the possibility of the building itself, was identified in this portion of the survey area. 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 26 Figure 9. Holiday Lodge building (center) and secondary building at auto dealership (right), view north. 6.3.1 Newly Identified Resources As a result of the survey, one newly identified cultural resource was recorded inside the Project Area: a segment of the West Antioch Creek Canal (EC-10-34). The recorded segment measures 575 feet long and extends from the southern side of the intersection of O Street and West 10th Street north to about West 8th Street. The northern 100 feet of the segment consists of large broken rocks (rip-rap) lining the sides of the creek, while the southern portion is lined with a 20-foot wide (at top) concrete channel which follows the eastern side of an adjacent parking lot. A wooden planked footpath that runs along the western side of O Street covers most of the southern 200 feet of the concrete channel. According to historic aerial photographs and maps, there is no strong evidence for a natural creek occurring inside the project area. The 1953 topographic map of the Project Area does not include any waterway, seasonal or perennial inside the Project Area; however a riparian belt appears to meander just east of the Project Area, on the eastern side of O Street, on the 1939 aerial photograph, prior to the construction of O Street. 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 27 The 1968 revised map of the 1953 topo shows the channel as a newly added feature, indicating that it was constructed after 1953 and before 1968, possibly to reroute the creek to the western side of O Street, which would have cut off flow through the historical creek. Historical aerials show an earthen-lined channel constructed by 1958. Therefore, using both historical aerials and topographic maps, the construction date of the channel has been narrowed to the time period between 1953 and 1958. Subsequently, between 1958 and 1965, the channel was slightly realigned to exhibit nearly 90- degree bends and portions appear to have been reinforced with concrete. Then, in the late 1980s or early 1990s, another channel modification occurred, immediately north (downstream) of the project area. The channel was graded and realigned from the former straight north-south alignment to a more natural configuration that exists today. Immediately following the reconfiguration, new buildings and structures are clearly visible along Fourth Street. Based on these records, the West Antioch Creek channel was artificially constructed to divert West Antioch Creek between 1953 and 1958 (likely due to the development of residential housing in Antioch at the time), was remodeled prior to 1965, and again in the late 1980s or early 1990s. Therefore, the channel is 52 to 57 years old, with at least two subsequent and rather substantial changes to its integrity of setting, location, and materials. 6.3.2 Buildings and Structures Several alternatives proposed by the CCCPWD involve demolition of up to three structures: a carport situated on the western side of the southernmost apartment building, the former Ford dealership building, and an auxiliary motel building associated with the Holiday Lodge. Alternative 1, the preferred alternative, involves the installation of a sub-grade box culvert that will preserve the most recent use of the former Ford dealership property. It will require the removal of the carport at the apartment complex, but there will be no impacts to the apartment buildings. Alternative 2 would include the installation of multiple box culverts and an open concrete-lined channel along the approximate path of Alternative 1. The use of an open channel through the former Ford dealership parking lot would eliminate future use in that capacity. No structures or buildings would be removed as a result of this alternative. Alternative 3 would use a combination of a multiple box culvert and an earthen channel that would be constructed west of the proposed alignments for Alternative 1 and 2. This alternative would require demolition of two buildings - the former Ford dealership building and one of the Holiday Lodge hotel buildings. Because demolition of historically significant structures (Historical Resources as defined by CEQA) is considered a significant impact under CEQA and an adverse effect under Section 106 NHPA, it is important to first determine whether or not any of these structures are considered cultural resources, and, if so, whether or not they are significant. Significance is established using the eligibility criteria for inclusion in the NRHP and CRHR, discussed in the following section. In order to first establish whether any of these three structures are considered cultural 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 28 resources, ECORP consulted county assessor records, as well as historical aerial photographs and topographic maps of the project area that collectively span the period between 1908 and present. Carport. The carport associated with the southernmost apartment complex was constructed sometime between 1979 and 1984, and therefore, is less than 50 years old and not a cultural resource. Demolition of the carport does not require further evaluation. Ford Dealership. According to County assessor’s records, the main building of the former Ford dealership was constructed in 1962 and is 48 years old. A second automotive building was constructed adjacent to the main building sometime between 1968 and 1978. As such, these structures are considered to be modern, and, if Alternative 3 is selected, demolition of the former Ford dealership buildings can be approved without further evaluation. However, if the project approval process continues such that either building is over 50 years of age at the time of approval, then the building must be evaluated for significance by an architectural historian. Auxiliary Building of the Holiday Lodge. The date of construction of the Holiday Lodge complex is not on record with the County Assessor; however, historical aerials and topographic maps provide a narrow window of time when the buildings were constructed. Based on these documents, the building was constructed sometime between 1953 and 1958 and is between 52 and 57 years old. Given its age, which is marginally considered historic, this structure should be evaluated for significance by an architectural historian, if Alternative 3 will be considered. 7.0 EVALUATION This section provides an evaluation of the significance of the West Antioch Creek Canal (EC-10- 34), the only cultural resource located within the Project Area, other than the buildings discussed above. Significance is evaluated using the eligibility criteria for the National Register of Historic Places (NRHP) and the California Register of Historical Resources (CRHR). 7.1 Federal Evaluation Criteria Under federal regulations implementing Section 106 of the NHPA (36 CFR 800), cultural resources identified in the Project APE must be evaluated using NRHP eligibility criteria. The eligibility criteria for the NRHP are as follows (36 CFR 60.4): “The quality of significance in American history, architecture, archaeology, and culture is present in districts, sites, buildings, structures, and objects of state and local importance that possess aspects of integrity of location, design, setting, materials, workmanship, feeling, association, and (A) Is associated with events that have made a significant contribution to the broad patterns of California’s history and cultural heritage; (B) Is associated with the lives of persons important in our past; 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 29 (C) Embodies the distinctive characteristics of a type, period, region, or method of construction, or represents the work of an important creative individual, or possesses high artistic values; or (D) Has yielded, or may be likely to yield, information important in prehistory or history.” In addition, the resource must be at least 50 years old, except in exceptional circumstances (36 CFR 60.4). Historical buildings, structures, and objects are usually evaluated under Criteria A, B, and C based on historical research and architectural or engineering characteristics. Archaeological sites are usually evaluated under Criterion D, the potential to yield information important in prehistory or history. An archaeological test program may be necessary to determine whether the site has the potential to yield important data. The lead federal agency, in this case, the US Army Corps of Engineers, makes the determination of eligibility based on the results of the evaluation and seeks concurrence from the State Historic Preservation Officer (SHPO). Effects to NRHP-eligible resources (historic properties) are adverse if the project may alter, directly or indirectly, any of the characteristics of an historic property that qualify the property for inclusion in the National Register in a manner that would diminish the integrity of the property’s location, design, setting, materials, workmanship, feeling, or association. 7.2 State Evaluation Criteria Under state law (the California Environmental Quality Act [CEQA]), cultural resources are evaluated using CRHR eligibility criteria in order to determine whether any of the resources are Historical Resources, as defined by CEQA. CEQA requires that impacts to Historical Resources be identified and, if the impacts would be significant, that mitigation measures to reduce the impacts be applied. CEQA guidelines state that a Historical Resource is a resource that 1) is listed in or has been determined eligible for listing in the CRHR by the State Historical Resources Commission; 2) is included in a local register of historical resources, as defined in Public Resources Code 5020.1(k); 3) has been identified as significant in an historical resources survey, as defined in Public Resources Code 5024.1(g); or 4) is determined to be historically significant by the CEQA lead agency [CCR Title 14, Section 15064.5(a)]. In making this determination, the CEQA lead agency usually applies the CRHR eligibility criteria. For this Project, only the fourth definition of a Historical Resource is applicable because there are no resources previously determined eligible or listed on the CRHR, there are no resources included in a local register of historical resources, and no resources identified as significant in a qualified historical resources survey. The eligibility criteria for the CRHR are as follows [CCR Title 14, Section 4852(b)]: 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 30 (1) It is associated with events that have made a significant contribution to the broad patterns of local or regional history, or the cultural heritage of California or the United States; (2) It is associated with the lives of persons important to local, California, or national history. (3) It embodies the distinctive characteristics of a type, period, region, or method of construction, or represents the work of a master or possesses high artistic values; or (4) It has yielded, or has the potential to yield, information important to the prehistory or history of the local area, California, or the nation. In addition, the resource must retain integrity. Integrity is evaluated with regard to the retention of location, design, setting, materials, workmanship, feeling, and association [CCR Title 14, Section 4852(c)]. Historical buildings, structures, and objects are usually evaluated under Criteria 1, 2, and 3 based on historical research and architectural or engineering characteristics. Archaeological sites are usually evaluated under Criterion 4, the potential to yield information important in prehistory or history. An archaeological test program may be necessary to determine whether the site has the potential to yield important data. The CEQA lead agency makes the determination of eligibility based on the results of the test and evaluation program. Cultural resources determined eligible for the NRHP by a federal agency are automatically eligible for the CRHR. Impacts to a Historical Resource (as defined by CEQA) are significant if the resource is demolished or destroyed or if the characteristics that made the resource eligible are materially impaired [CCR Title 14, Section 15064.5(a)]. 7.3 Research Topics for Canals Historical canals can provide information about the developing economy of rural settlements and how it relates to more regional events in history, including mining, and can shed light on the early development patterns of communities. In response to a growing economy, rural communities often needed to modify their landscapes to accommodate development or to irrigate farmlands, or both. Small canals of the type found inside the Project Area were typically used to channel irrigation water into previously uncultivated land, but were also constructed to control the flow of water during flood events, proving flood protection for the built environment. Based on archival research, the West Antioch Creek Canal was constructed expressly for the purpose of providing flood protection to the growing community of Antioch. According to JRP and Caltrans (2000: 92-93): Water systems may be found eligible to the National Register of Historic Places under any of the National Register criteria, although some criteria are more commonly relevant than others. Of 22 eligible water systems identified with one, 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 31 or more than one, specified criteria in OHP’s statewide inventory as of mid-1995, 21 systems (95%) were listed under Criterion A; 14 (64% ) were listed under Criterion C; while only one each (5%) came under criteria B and D. It appears that water conveyance systems are most likely to be found eligible for the National Register of Historic Places under Criterion A (events) or C (type or style of construction, district), and fewer will be found eligible under B (people) or D (information potential). More than one of the National Register criteria may apply to water conveyance systems, such as when a system is eligible under both A and C, for its association with important events and its engineering values. A system may also contain individually eligible properties, such as associated archeological sites that may be eligible under D or structures eligible under C. The research design and evaluation procedures for historic water conveyance systems in California was developed by JRP and Caltrans in 2000 and provides specific thresholds for canals. While the canals studied by JRP and Caltrans are larger than the Contra Costa Canal, the research themes and significance thresholds apply to the current Project, and therefore, are provided verbatim: Criterion A Like other kinds of public works facilities, water conveyance systems are inherently important to the communities they serve, providing infrastructure essential for community development. Water supply has been particularly pivotal in the development of California and other parts of the arid West. Irrigation and reclamation canals provide the lifeblood of farming communities; municipal water canals are of critical importance in city development; hydroelectric canals serve a very specific purpose, but their benefits are widely distributed; mining canals also served a focused purpose, but nonetheless played very key roles in the economies of mining-based communities; and major multi-purpose systems provided far- reaching benefits to many sectors of the state’s population. Thus, it is not surprising that water conveyance systems have been found eligible for the National Register of Historic Places under Criterion A for their association with important events. For a water conveyance system to be eligible under Criterion A, it must be found to be associated with specific important events (e.g., first long-distance transmission of hydroelectric power) or important patterns of events (e.g., development of irrigated farming). This document has established historic contexts for many of these themes, but other events may also be found significant, and assessing local significance may require further research. A system must be adequately documented, through accepted means of documentary or archeological research, as being associated with the important events; speculative associations cannot confer eligibility. The significance of the documented association must then be demonstrated. In other words, the system’s association with the important event must also be an important association, not mere coexistence. For example, an 1850s mining ditch evaluated 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 32 for its association with the gold rush would normally not be found eligible under Criterion A if it served only unimportant mines that produced little gold, and it possessed no other associations. Criterion B For eligibility under Criterion B, a property must be associated with an important person’s productive life and must be the property that is most closely associated with that person. For instance, the office in which a prominent engineer prepared his/her most important designs could be eligible under Criterion B and would be more closely associated with his/her work than would the place where that person was born. On the other hand, a property such as a dam that represents the work of a master engineer would be eligible under Criterion C, as the work of a master, rather than B, as representing an important person. Water conveyance systems will rarely be found eligible under Criterion B. There may be instances, however, when a water conveyance system would be eligible under Criterion B, notably when the person’s association with the system is very strong and no properties more intimately associated with that person remain. Researching associations with people important in water history should include a careful evaluation as to whether the water system under investigation is the property that best represents that association. In California notable names for which there might be associations with water planning, construction, or engineering include: Anthony Chabot, George Chaffey, Frederick Eaton, William Mulholland, George Maxwell, Robert Marshall, Elwood Mead and C. E. Grunsky. Criterion C Water conveyance systems have been found eligible for the National Register of Historic Places under Criterion C for their engineering or design values. Examples of different types, periods, or methods of construction; the works of a master; properties with high artistic merit; and properties which together constitute a historic district may be eligible under Criterion C. Properties eligible under C may have unique values or they may be the best or good examples of a type of property. The earliest, best preserved, largest, or sole surviving examples of particular types of water conveyance systems or a property that introduced a design innovation may be eligible as examples of evolutionary trends in engineering. To be considered a good representative of that type, period, or method of construction, a water conveyance system must possess “distinctive characteristics,” the common features or traits of that type, period, or method of construction. Through those distinctive characteristics, a property must clearly illustrate one or more of the following: the pattern of features common to a particular class of resources; the individuality or variation of features that occurs within the class; the evolution of that class; or the transition between classes of resources. When water systems are examined as good examples of a particular class of property, it is necessary to establish a comparative framework in order to understand how they relate to other properties with similar characteristics. 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 33 Water conveyance systems can be eligible as the work of a master when designed by a figure of acknowledged greatness in the field or by someone unknown whose workmanship is distinguishable from others by its style and quality. However, the system must be a good example of the designer’s work, and not all works of a master will be eligible. Systems designed by individuals identified in the Criterion B discussion above should be examined for the possibility of their eligibility under Criterion C as the work of a master. High artistic values can also be found in properties that articulate a particular concept of design so well that it expresses an aesthetic ideal. To be eligible for its artistic value, a property must express the aesthetic ideal or design concept more fully than other properties of its type. A large water conveyance system with multiple components will often be evaluated as a district rather than as a single property. An eligible historic district must possess a significant concentration or linkage of resources that are united historically or aesthetically by plan or physical development. It should be a significant and distinguishable entity, although its components need not possess individual distinction. Criterion D Water conveyance systems may be eligible for the National Register if they may be likely to yield information important in history or prehistory. These properties must be studied within an appropriate historic context and they must possess the potential to answer specific important research questions. Once the research value of a property is realized, it is no longer eligible under Criterion D. However, properties that have yielded important information may in rare cases also be found eligible under Criterion A when that data has proven seminal to research in that field. The properties most commonly found eligible under Criterion D are archeological sites, but buildings, structures, and objects can also, if infrequently, be found eligible for their information potential. In order for these other property types to be eligible under D, the physical properties themselves must be or have been the principal source of the important information. Because water conveyance systems are often complex properties that may be composed of both structural elements and directly associated resources, eligibility under Criterion D may derive from both the research value of individual elements and/or relationships among those parts. The information value of water conveyance systems has not been widely recognized to date, and few water conveyance systems have been found significant for their research potential. Attention has generally focused on the ability of water conveyance systems to yield important information about vernacular competencies and construction methods. That work has examined the traditional models water conveyance systems were drawn from, how such models were modified to meet new situations, and the factors that influenced the success or failure of those constructions. Prehistoric irrigation systems, Spanish irrigation systems, and early mining and irrigation systems of the American Period all have 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 34 the potential to provide such insights. Certain water conveyance systems also may possess research value stemming from their associations with other types of resources. When documentary sources fail to reveal the precise alignment of a water system, field verification of the route may help locate associated properties both directly related and incidental to those systems. Knowing the period during which the water conveyance system operated may also guide the interpretation of associated resources. Mining ditches in the foothills of the Sierra Nevada are particularly likely to possess this kind of limited value. While unlikely to be individually eligible, systems that possess incidental information may require consideration within the larger context of any important information they can generate as a group. With that said, their aggregate value may be fully realized through appropriate survey efforts, rendering such properties ineligible after their alignment and period of use are verified. Associated archeological sites that are either directly related to the construction and maintenance of water conveyance systems or linked by dependence on their water also may be eligible under Criterion D. Occupation sites directly associated with the construction and operation of water conveyance systems, such as construction camps, ditch tenders’ cabins, and operators’ housing compounds, may contain archaeological deposits and features with the potential to provide important information. Other types of incidental habitation sites also may contain such information. For example, Native Americans commonly relocated near mining ditches after they were displaced from traditional occupation sites, and miners also situated their camps near ditches when other sources of potable water were not readily available. Detailed descriptions and evaluations of associated archeological sites are normally undertaken only when those properties will be directly impacted by a project. Unevaluated occupation sites should be treated as potentially eligible for the National Register until they are formally evaluated. Integrity Water conveyance systems that appear to meet the National Register criteria must also retain integrity, which is the ability of a property to convey its significance. To retain historic integrity, a system must possess at least several, and usually most, of the seven aspects of integrity: location, design, setting, materials, workmanship, feeling, and association. The property’s essential physical features, important elements that were present during the historic period, must be present and visible. To address integrity, the appearance of the water system and its setting during its period of significance must be known and the following questions should be asked: Does the system follow the alignment of its period of significance? Have the significant elements of design, materials, and workmanship been retained? Does the setting still evoke the important qualities of the water system? And does the property retain the feeling and associations needed to convey its significance? For water conveyance systems or features within a 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 35 system that may be eligible under Criterion D, an evaluation will normally focus on whether the property retains the potential to yield important information. That consideration will usually focus on location, design, and materials, although it is possible that other elements of integrity may sometimes apply. As with other types of historic properties, the fundamental test of the integrity of a water conveyance system consists of the relationship between its current appearance and its appearance during the period of significance. Integrity will not be lost as the result of modifications that were undertaken during the system’s period of significance, and modifications made within that time may actually contribute to the importance of the property. Subsequent repairs or modifications may have greater effects on the system’s integrity than abandonment and deterioration of the system. An abandoned system that has deteriorated in place can retain integrity despite erosion or sedimentation, while systems that continue in use may have lost integrity because they have been substantially modified in the course of maintenance and repairs (JRP and Caltrans 2000: 93-95). 8.0 EVALUATION This section provides an evaluation of the significance of the West Antioch Creek Canal (EC-10- 34) located within the Project APE using the NRHP and CRHR eligibility criteria as they relate to water conveyance systems. 8.1 West Antioch Creek Canal The West Antioch Creek Canal (EC-10-34) has not been associated with important events in California or National history. The canal was constructed long after the CVP’s Contra Costa Canal for the purpose of providing flood control protection to the City of Antioch. Therefore, it is not part of the infrastructure that was essential for community development and is not eligible under Criterion A of the NRHP or Criterion 1 of the CRHR. Archival research did not reveal any association between the canal and any persons important in state or national history, and did not reveal any association with those notable names in canal construction and engineering, such as Anthony Chabot, George Chaffey, Frederick Eaton, William Mulholland, George Maxwell, Robert Marshall, Elwood Mead and C. E. Grunsky Therefore, it is not eligible under Criterion B of the NRHP or Criterion 2 of the CRHR. In addition, the canal is very similar to canals of this same era, and while the boardwalk cover is not a common element of flood control canals, neither it nor the canal exhibit “distinctive characteristics” or represent evolutionary trends in engineering, and are not representative of the work of a master. In addition, historical aerial photographs show the boardwalk having been constructed in recent years. Therefore, the canal is not eligible under Criterion C of the NRHP or Criterion 3 of the CRHR. Finally, the segment of the canal studied in the current analysis does not have any archaeological sites or features associated with it that could be used to answer important 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 36 questions in history. There does not appear to be any research value associated with the canal itself that is not already (and better) documented in the archival record, primarily through historical aerials and topographic maps. Therefore, the canal is not eligible under Criterion D of the NRHP or Criterion 4 of the CRHR. Based on the archival research and field inventory, the West Antioch Creek Canal does not appear to meet any of the significance criteria for inclusion in the NRHP or CRHR. It is not an Historic Property defined by Section 106 of NHPA, and is not considered an Historical Resource under CEQA. 9.0 MANAGEMENT CONSIDERATIONS 9.1 Conclusions The West Antioch Creek Canal has been evaluated as not eligible for the CRHR or NHRP. If the U.S. Army Corps of Engineers determines that the canal is ineligible for the NRHP and the State Historic Preservation Officer concurs, then no mitigation measures for the canal will be necessary under Section 106. If the CCCPWD determines that the canal is ineligible for the CRHR and, therefore, is not an Historical Resource for the purposes of CEQA, then no mitigation measures for the canal will be necessary under CEQA. In addition, and assuming that the canal is formally determined not significant by the agencies, the carport has been determined to be a recent structure that is not considered a cultural resource under either state or federal law. Therefore, implementation of Alternative 1 will not have a significant impact to historical resources under CEQA or an adverse effect to historic properties under Section 106. Likewise, because Alternative 2 does not propose demolition of any structures, and assuming that the canal is formally determined not significant by the agencies, implementation of this alternative will not have a significant impact to historical resources under CEQA or an adverse effect to historic properties under Section 106. Because Alternative 3 would require demolition of the former Ford dealership building and one of the Holiday Lodge hotel buildings, both of which are old enough to require further consideration, implementation of this alternative would first require that these structures be evaluated for significance by an architectural historian. 9.2 Unanticipated Discovery There always remains a possibility that unrecorded cultural resources are present beneath the ground surface, and that such resources could be exposed during project construction. Both CEQA and Section 106 of the National Historic Preservation Act, via NEPA, require the lead agency to address any unanticipated cultural resource discoveries during project construction. Therefore, ECORP recommends the following mitigation measures be adopted and implemented by the lead agency to reduce potential adverse impacts to less than significant. 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 37 Mitigation Measure #1: Unanticipated Discovery If subsurface deposits believed to be cultural or human in origin are discovered during construction, then all work must halt within a 200- foot radius of the discovery. A qualified professional archaeologist, meeting the Secretary of the Interior’s Professional Qualification Standards for prehistoric and historic archaeologist, shall be retained at the Applicant’s expense to evaluate the significance of the find. A Native American monitor, following the Guidelines for Monitors/Consultants of Native American Cultural, Religious, and Burial Sites established by the Native American Heritage Commission, may also be required and, if required, shall be retained at the Applicant’s expense. Work cannot continue at the discovery site until the archaeologist conducts sufficient research and data collection to make a determination that the resource is either 1) not cultural in origin; or 2) not potentially significant or eligible for listing on the NRHP or CRHR. If a potentially-eligible resource is encountered, then the archaeologist, lead agency, and project proponent shall arrange for either 1) total avoidance of the resource, if possible; or 2) test excavations to evaluate eligibility and, if eligible, total data recovery as mitigation. The determination shall be formally documented in writing and submitted to the lead agency as verification that the provisions in CEQA/NEPA for managing unanticipated discoveries have been met. In the event that evidence of human remains is discovered, construction activities within 200 feet of the discovery will be halted or diverted and the requirements of Mitigation Measure #1 will be implemented. In addition, the provisions of Section 7050.5 of the California Health and Safety Code, Section 5097.98 of the California Public Resources Code, and Assembly Bill 2641 will be implemented. When human remains are discovered, state law requires that the discovery be reported to the County Coroner (Section 7050.5 of the Health and Safety Code) and that reasonable protection measures be taken during construction to protect the discovery from disturbance (AB 2641). If the Coroner determines the remains are Native American, the Coroner notifies the Native American Heritage Commission which then designates a Native American Most Likely Descendant (MLD) for the project (Section 5097.98 of the Public Resources Code). The designated MLD then has 48 hours from the time access to the property is granted to make recommendations concerning treatment of the remains (AB 2641). If the landowner does not agree with the recommendations of the MLD, the NAHC can mediate (Section 5097.94 of the Public Resources Code). If no agreement is reached, the landowner must rebury the remains where they will not be further disturbed (Section 5097.98 of the Public Resources Code). This will also include either recording the site with the NAHC or the appropriate Information Center; using an open space or conservation zoning designation or easement; or recording a document with the county in which the property is located (AB 2641). The Lead Agency is responsible for ensuring compliance with these mitigation measures because damage to significant cultural resources is in violation of CEQA and Section 106. 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 38 Section 15097 of Title 14, Chapter 3, Article 7 of CEQA, Mitigation Monitoring or Reporting, “the public agency shall adopt a program for monitoring or reporting on the revisions which it has required in the project and the measures it has imposed to mitigate or avoid significant environmental effects. A public agency may delegate reporting or monitoring responsibilities to another public agency or to a private entity which accepts the delegation; however, until mitigation measures have been completed the lead agency remains responsible for ensuring that implementation of the mitigation measures occurs in accordance with the program.” 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 39 10.0 REFERENCES CITED Beardsley, R. K. 1954 Temporal and Areal Relationships in Central California Archaeology, Parts I & II. University of California Archaeological Survey Reports, Nos. 25 & 25, Berkeley. Bidwell, John 1971 Sutter’s Fort. In California Heritage: An Anthology of History and Literature, edited by John and Laree Caughey, pp. 134-138. F. E. Peacock Publishers, Itasca, Illinois. Revised Edition. Bramlette, Allan G., Mary Praetzellis, Adrian Praetzellis, Katherine M. Dowdall, Patrick Brunmeier, and David A. Frederickson 1991 Archaeological Resources Inventory for Los Vaqueros Water Conveyance Alignments, Contra Costa County, California. Prepared for Jones & Stokes, Sacramento. Anthropological Studies Center, Sonoma State University Academic Foundation, Inc., Rohnert Park, California. Brewster, John A. 1857 Table of Statistics – Compiled from the Official Reports of the County Assessors, for the Year 1857, Returned to the Surveyor General. Electronic document, http://www.slc.ca.gov/Misc_Pages/Historical/Surveyors_General/reports/Brewste r_1857.pdf, accessed 28 June 2010. Bright, William 1998 1500 California Place Names: Their Origin and Meaning. University of California Press, Berkeley and Los Angeles, California. Bureau of Land Management (BLM) 2010 Bureau of Land Management, General Land Office Records. Electronic document, http://www.glorecords.blm.gov/, accessed 29 June 2010 Caltrans 2010a Structure and Maintenance & Investigations, Historical Significance–State Agency Bridges website June 2009, Electronic Document, http://www.dot.ca.gov/hq/structur/strmaint/hs_state.pdf, accessed 30 June 2010. 2010b Structure and Maintenance & Investigations, Historical Significance–Local Agency Bridges website June 2009, Electronic Document, http://www.dot.ca.gov/hq/structur/strmaint/hs_state.pdf, accessed 30 June 2010. Castillo, Edward D. 1978 The Impact of Euro-American Exploration and Settlement. In Handbook of North American Indians, Volume 8: California, edited by R.F. Heizer, pp. 99-127. William C. Sturtevant, general editor, Smithsonian Institution, Washington D.C. 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 40 Clark, William B. 2005 Gold Districts of California. California Department of Conservation, California Geological Survey, California. Cleland, Robert G. 1941 The Cattle on a Thousand Hills: Southern California, 1850-1870. Huntington Library, San Marino, California. Contra Costa County 2010 Contra Costa County, California, Mapping Information website. Electronic document, http://www.ccmap.us/gis/, accessed 30 June 2010. Cowan, Robert G. 1956 Ranchos of California. Academy Literary Guild, Fresno, California. Eddy, William M. 1852 Annual Report of the Surveyor General. Electronic document http://www.slc.ca.gov/Misc_Pages/Historical/Surveyors_General/reports/Eddy_18 52.pdf, accessed 28 June 2010. Emanuels, George 1993 California's Contra Costa County, an Illustrated History. 5th edition. Diablo Books, Walnut Creek. Estes, Allen, Aimee Arrigoni, David Buckley, James Allan, and William Self 2006 Cultural Resource Assessment, Delta Diablo Sanitation District and the City of Antioch Recycled Water Pipeline Extension Project, Antioch, Contra Costa County, California. Prepared for RMC Water and Environment, Walnut Creek. William Self Associates, Inc., Orinda. Frederickson, D.A. 1989 Prehistory of the Laguna: An Overview. Submitted to David W. Smith Consulting, Oakland. Copies available from Northwest Information Center, Department of Anthropology, Sonoma State University, Rohnert Park, California. Gerow, B.A. 1968 An Analysis of the University Village Complex with a Reappraisal of Central California Archaeology. Stanford University Press, Stanford. Gudde, Erwin G. 1975 California Gold Camps: A Geographical and Historical Dictionary of Camps, Towns, and Localities Where Gold Was Found and Mined; Wayside Stations and Trading Centers. University of California Press, Berkeley and Los Angeles, California 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 41 Hastings, S. 1852 Report of the County Assessor of Contra Costa County. In Annual Report of the Surveyor General by William M. Eddy. Appendix C. Electronic document http://www.slc.ca.gov/Misc_Pages/Historical/Surveyors_General/reports/Eddy_18 52.pdf, accessed 28 June 2010. Higley, Horace A. 1858 Table of Statistics – Compiled from the Official Reports of County Assessors, for the Year 1858, Returned to the Surveyor General. Electronic document http://www.slc.ca.gov/Misc_Pages/Historical/Surveyors_General/reports/Higley_1 858.pdf, accessed 28 June 2010. 1861 Annual Re port of the Surveyor General for the Year 1861. Electronic document http://www.slc.ca.gov/Misc_Pages/Historical/Surveyors_General/reports/Higley_1 861.pdf, accessed 28 June 2010. Ingram, B.L. 1998 Differences in Radiocarbon Age Between Shell and Charcoal from a Holocene Shellmound in Northern California. Quarternary Research 49:102-110. Jackson, W. Turrentine and Alan M. Paterson, 1977 The Sacramento-San Joaquin Delta: The Evolution and Implementation of Water Policy, an Historical Perspective, California Water Resources Center, University of California, Davis, Contribution No. 163 (June 1977), 30. In Water Conveyance Systems in California: Historic Context Development and Evaluation Procedures by JRP and Caltrans (2000). JRP and Caltrans 2000 Water Conveyance Systems in California: Historic Context Development and Evaluation Procedures. JRP Historical Consulting Services, Davis, and the California Department of Transportation, Sacramento. Kyle, Douglas 2002 Historic Spots in California. Stanford University Press. Stanford, California. Levy, Richard 1978 Costanoan. In Handbook of North American Indians, Volume 8, California, Robert F. Heizer, Ed., pp. 485-495. Smithsonian Institution, Washington. Marshall, James W. 1971 The Discovery. In California Heritage: An Anthology of History and Literature, edited by John and Laree Caughey, pp. 191-192. F. E. Peacock Publishers, Itasca, Illinois. Revised Edition. 2009-040 Task Order 3 West Antioch Creek/Survey Report/West Antioch Inventory Report 42 Milliken, R., R.T. Fitzgerald, M.G. Hylkema, R. Groza, T. Origer, D.G. Bieling, A. Leventhal, R.S. Wiberg, A. Gottsfield, D. Gillette, V. Bellifemine, E. Strother, R. Cartier, and D.A. Fredrickson 2007 "Punctuated Culture Change in the San Francisco Bay Area." In California Prehistory: Colonization, Culture, and Complexity, edited by Terry L. Jones and Kathryn A. Klar. Alta Mira Press. National Park Service (NPS) 1983 Archaeology and Historic Preservation: Secretary of the Interior’s Standards and Guidelines. 48 FR (Federal Register) 44716-68. 2010 National Register Information System Website. Electronic document, http://www.nr.nps.gov/nrloc1.htm, accessed June 29, 2010. Office of Historic Preservation (OHP) 1996 California Historical Landmarks. California Department of Parks and Recreation, Sacramento, California. 2010a Directory of Properties in the Historic Property Data File for Contra Costa County. On file at NWIC, Sonoma State University, California. 2010b Office of Historic Preservation California Historical Landmarks Website, Electronic document. http://ohp.parks.ca.gov/?page_id=21387, accessed June 22, 2010. Robinson, Michael C. 1979 Water for the West: The Bureau of Reclamation, 1902-1977 (Chicago: Public Works Historical Society, 1979), pages 67-69. Cited in Water Conveyance Systems in California: Historic Context Development and Evaluation Procedures by JRP and Caltrans (2000). United States Department of Agriculture (USDA) 2010 Natural Resources Conservation Service Web Soil Survey. Electronic document, http://websoilsurvey.nrcs.usda.gov/app/WebSoilSurvey.aspx., Accessed July 1, 2010. Wallace, William J. 1978 "Post-Pleistocene Archeology, 9000 to 2000 BC." In Handbook of North American Indians, Vol. 8: California, edited by R.F. Heizer, pp. 25-36. Smithsonian Institution, Washington, D.C. Wallace, W.J. and D.W. Lathrop 1975 West Berkeley (CA-ALA-307): A Culturally Stratified Shellmound on the East Shore of San Francisco Bay. Contributions of the University of California Archaeological Research Facility, No. 29. LIST OF ATTACHMENTS Attachment A – Records Search Confirmation Attachment B – Native American Consultation Attachment C – Project Area Photographs Attachment D – Confidential Cultural Resource Site Locations and Site Records ATTACHMENT A Records Search Confirmation 2009-040 Task Order 3 West Antioch Creek/Historical Society Consultation/Antioch Hist Soc Ltr 2525 Warren Drive Rocklin, California 95677 Phone: (916) 782-9100 Fax: (916) 782-9134 Web: www.ecorpconsulting.com 1 July 2010 Antioch Historical Society 1500 W. Fourth Street Antioch, California 94509 RE: Cultural Resources Identification Effort at West Antioch Creek, Antioch, California (ECORP Project No. 2009-040). Dear Antioch Historical Society: ECORP Consulting, Inc. has been retained to assist in the planning of the development on the project indicated above. As part of the identification effort, we are seeking information from all parties that may have knowledge of or concerns with historic properties or cultural resources in the area of potential effect. Included are maps showing the project area outlined. We would appreciate input on this undertaking from the historical society with concerns about possible cultural properties or potential impacts within or adjacent to the area of potential effect. If possible, please fax your response to my attention at (916) 782-9134. If you have any questions, please contact me at (916) 782-9100 or LWestwood@ecorpconsulting.com. Thank you in advance for your assistance in our cultural resource management study. Sincerely, Lisa Westwood, RPA Cultural Resource Manager Attachment(s) 2009-040 Task Order 3 West Antioch Creek/Historical Society Consultation/Contra Costa County Hist Soc Ltr 2525 Warren Drive Rocklin, California 95677 Phone: (916) 782-9100 Fax: (916) 782-9134 Web: www.ecorpconsulting.com 1 July 2010 Contra Costa County Historical Society 610 Main Street Martinez, California 94553 RE: Cultural Resources Identification Effort at West Antioch Creek, Antioch, California (ECORP Project No. 2009-040). Dear Contra Costa County Historical Society: ECORP Consulting, Inc. has been retained to assist in the planning of the development on the project indicated above. As part of the identification effort, we are seeking information from all parties that may have knowledge of or concerns with historic properties or cultural resources in the area of potential effect. Included are maps showing the project area outlined. We would appreciate input on this undertaking from the historical society with concerns about possible cultural properties or potential impacts within or adjacent to the area of potential effect. If possible, please fax your response to my attention at (916) 782-9134. If you have any questions, please contact me at (916) 782-9100 or LWestwood@ecorpconsulting.com. Thank you in advance for your assistance in our cultural resource management study. Sincerely, Lisa Westwood, RPA Cultural Resource Manager Attachment(s) ATTACHMENT B Native American Consultation Native American Contacts West Antioch Creek, 2009-040, Contra Costa County Date Contacted Name Affiliation 1. Letter 2. Phone 3. Phone Response Received? Comments Native American Heritage Commission 915 Capital Mall, Room 364 Sacramento, CA 95814 N/A 5/14/2010 N/A N/A Yes No sacred lands; list of three contacts provided Katherine Erolinda Perez PO Box 717 Linden, CA 95236 (209) 887-3415 Ohlone/Costanoan No. Valley Yokuts Bay Miwok 5/24/2010 6/28/2010 6/30/2010 No 6/28/2010 SP left detailed message 6/30/2010 SP left detailed message Andrew Galvan The Ohlone Indian Tribe PO Box 3152 Fremont, CA 94539 chochenyo@aol.com (510) 882-0527 cell (510) 687-9393 fax Ohlone/Costanoan Bay Miwok Plains Miwok Patwin 5/24/2010 6/28/2010 6/30/2010 Yes 6/28/2010 SP left detailed message 6/30/2010 SP spoke with Andrew, he said that he had no questions or concerns regarding the project. Ramona Garibay, Representative Trina Marine Ruano Family 16010 Halmar Lane Lathrop, CA 95330 soaprootmo@msn.com (209) 629-8619 Ohlone/Costanoan Bay Miwok Plains Miwok Patwin 5/24/2010 6/28/2010 6/29/10 Yes 6/28/2010 Phone number provided is out of service. Sent detailed E-mail. 6/29/2010 Ramona called back at 3:00, She said that she does not have any questions or concerns regarding the project. 2525 Warren Drive, Rocklin, California 95677 • Tel: (916) 782-9100 • Fax: (916) 782-9134 • Web: www.ecorpconsulting.com May 14, 2010 Ms. Debbie Pilas-Treadway Associate Governmental Program Analyst Native American Heritage Commission 915 Capital Mall, Room 364 Sacramento, CA 95814 RE: Cultural Resources Identification Effort for West Antioch Creek Improvements Project in Contra Costa County County, California T2N, R1E, Unsectioned. Dear Ms. Pilas-Treadway: ECORP Consulting, Inc. has been retained to assist in the planning of the development on the project indicated above. As part of the identification effort, we are seeking information from all parties that may have knowledge of or concerns with historic properties or cultural resources in the area of potential effect. Included is a map showing the project area outlined. We would appreciate input on this undertaking from the Native American community with concerns about possible traditional cultural properties or potential impacts within or adjacent to the area of potential effect. Please understand that this is not a request for location, data or any other information that may be deemed sensitive or confidential to individual Native Americans, Native American organizations, or Federally Recognized Tribes. Information on other parties that may have interests or concerns in the undertaking would be appreciated. Please fax your response to my attention at (916) 782-9134. If you have any questions, please contact me at (916) 782-9100. Thank you in advance for your assistance in our cultural resource management consultation. Sincerely, Lisa Westwood, RPA Cultural Resource Manager 2009-040 Task Order 3 West Antioch Creek/ NA Consultation/NA Letters/NA Ltr 2525 Warren Drive Rocklin, California 95677 Phone: (916) 782-9100 Fax: (916) 782-9134 Web: www.ecorpconsulting.com 25 March 2010 Katherine Erolinda Perez North Valley Yokuts Tribe P.O. Box 717 Linden, California 95236 RE: Cultural Resources Identification Effort at West Antioch Creek, Antioch, California (ECORP Project No. 2009-040). Dear Ms. Perez: ECORP Consulting, Inc. (ECORP) is currently conducting a cultural resources inventory of a 2-acre parcel located in the City of Antioch in Contra Costa County. The study is being conducted in advance of approval of the proposed West Antioch Creek Public Safety Improvement project. The project area is situated near 10th and O Streets and in unsecectioned parts of Township 2N, Range 1E MDBM. For your reference, the boundaries of the project area are marked on the enclosed topographic quadrangle map. The purpose of the study is to identify cultural resources that could be affected by the proposed project, as required by Section 106 of the National Historic Preservation Act (NHPA) and the California Environmental Quality Act (CEQA). The investigation includes a records search conducted with the Northwest Information Center at Sonoma State University and a search of the Native American Heritage Commission’s Sacred Lands File, and a field survey and inventory. As part of this study, ECORP would like to identify archaeological, historic resources, or locations that are of cultural importance to the local Native American community. We would appreciate any information you may have regarding Native American cultural resources located in or near the proposed project location that could be affected by the proposed development of the parcel. ECORP will forward your comments or requests to the federal (Section 106) lead agency for consideration and appropriate action. The lead agency will respond to your comments after a permit application has been submitted, at which time the Section 106 process will be initiated. At this time, however, cultural resources investigations are being conducted for project planning purposes only. ECORP is gathering information on potentially unrecorded cultural resources that might be affected by this project. We encourage you to participate in this process. The potential impacts that this project may have on cultural resources important to the Native American community cannot be evaluated unless we are aware the resources exist. If possible, for project planning purposes, we would like to receive a response from you about this project within the next two weeks. If we have not heard from you within 30 days of the receipt of this letter, we will assume that you do not wish to comment on this project. If you have any questions, please feel free to call me at (916) 782-9100 or via email at lwestwood@ecorpconsulting.com. Thank you for your assistance and participation in this project. Sincerely, Lisa Westwood, RPA Cultural Resource Manager Attachment(s) 2009-040 Task Order 3 West Antioch Creek/ NA Consultation/NA Letters/NA Ltr 2525 Warren Drive Rocklin, California 95677 Phone: (916) 782-9100 Fax: (916) 782-9134 Web: www.ecorpconsulting.com 25 March 2010 Andrew Galvan The Ohlone Indian Tribe P.O. Box 3152 Fremont, California 94539 RE: Cultural Resources Identification Effort at West Antioch Creek, Antioch, California (ECORP Project No. 2009-040). Dear Mr. Galvan: ECORP Consulting, Inc. (ECORP) is currently conducting a cultural resources inventory of a 2-acre parcel located in the City of Antioch in Contra Costa County. The study is being conducted in advance of approval of the proposed West Antioch Creek Public Safety Improvement project. The project area is situated near 10th and O Streets and in unsecectioned parts of Township 2N, Range 1E MDBM. For your reference, the boundaries of the project area are marked on the enclosed topographic quadrangle map. The purpose of the study is to identify cultural resources that could be affected by the proposed project, as required by Section 106 of the National Historic Preservation Act (NHPA) and the California Environmental Quality Act (CEQA). The investigation includes a records search conducted with the Northwest Information Center at Sonoma State University and a search of the Native American Heritage Commission’s Sacred Lands File, and a field survey and inventory. As part of this study, ECORP would like to identify archaeological, historic resources, or locations that are of cultural importance to the local Native American community. We would appreciate any information you may have regarding Native American cultural resources located in or near the proposed project location that could be affected by the proposed development of the parcel. ECORP will forward your comments or requests to the federal (Section 106) lead agency for consideration and appropriate action. The lead agency will respond to your comments after a permit application has been submitted, at which time the Section 106 process will be initiated. At this time, however, cultural resources investigations are being conducted for project planning purposes only. ECORP is gathering information on potentially unrecorded cultural resources that might be affected by this project. We encourage you to participate in this process. The potential impacts that this project may have on cultural resources important to the Native American community cannot be evaluated unless we are aware the resources exist. If possible, for project planning purposes, we would like to receive a response from you about this project within the next two weeks. If we have not heard from you within 30 days of the receipt of this letter, we will assume that you do not wish to comment on this project. If you have any questions, please feel free to call me at (916) 782-9100 or via email at lwestwood@ecorpconsulting.com. Thank you for your assistance and participation in this project. Sincerely, Lisa Westwood, RPA Cultural Resource Manager Attachment(s) 2009-040 Task Order 3 West Antioch Creek/ NA Consultation/NA Letters/NA Ltr 2525 Warren Drive Rocklin, California 95677 Phone: (916) 782-9100 Fax: (916) 782-9134 Web: www.ecorpconsulting.com 25 March 2010 Ramona Garibay, Representative Trina Marine Ruano Family 16010 Halmar Lane Lathrop, California 95330 RE: Cultural Resources Identification Effort at West Antioch Creek, Antioch, California (ECORP Project No. 2009-040). Dear Ms. Garibay: ECORP Consulting, Inc. (ECORP) is currently conducting a cultural resources inventory of a 2-acre parcel located in the City of Antioch in Contra Costa County. The study is being conducted in advance of approval of the proposed West Antioch Creek Public Safety Improvement project. The project area is situated near 10th and O Streets and in unsecectioned parts of Township 2N, Range 1E MDBM. For your reference, the boundaries of the project area are marked on the enclosed topographic quadrangle map. The purpose of the study is to identify cultural resources that could be affected by the proposed project, as required by Section 106 of the National Historic Preservation Act (NHPA) and the California Environmental Quality Act (CEQA). The investigation includes a records search conducted with the Northwest Information Center at Sonoma State University and a search of the Native American Heritage Commission’s Sacred Lands File, and a field survey and inventory. As part of this study, ECORP would like to identify archaeological, historic resources, or locations that are of cultural importance to the local Native American community. We would appreciate any information you may have regarding Native American cultural resources located in or near the proposed project location that could be affected by the proposed development of the parcel. ECORP will forward your comments or requests to the federal (Section 106) lead agency for consideration and appropriate action. The lead agency will respond to your comments after a permit application has been submitted, at which time the Section 106 process will be initiated. At this time, however, cultural resources investigations are being conducted for project planning purposes only. ECORP is gathering information on potentially unrecorded cultural resources that might be affected by this project. We encourage you to participate in this process. The potential impacts that this project may have on cultural resources important to the Native American community cannot be evaluated unless we are aware the resources exist. If possible, for project planning purposes, we would like to receive a response from you about this project within the next two weeks. If we have not heard from you within 30 days of the receipt of this letter, we will assume that you do not wish to comment on this project. If you have any questions, please feel free to call me at (916) 782-9100 or via email at lwestwood@ecorpconsulting.com. Thank you for your assistance and participation in this project. Sincerely, Lisa Westwood, RPA Cultural Resource Manager Attachment(s) 1 Stephen Pappas From:Stephen Pappas Sent:Monday, June 28, 2010 10:53 AM To:'soaprootmo@msn.com' Subject:Cultural Resources letter for West Antioch Creek Ms. Ramona Garibay, This E-mail is to follow up the letter we sent out May 25, 2010 regarding the West Antioch Creek project located in the City of Antioch, California. I was wondering if you had received our letter and map for the project, if not, I can resend the letter and map. If you have any comments or questions regarding the project, please feel free to call or E-mail me. Thank you, Stephen Pappas Staff Archaeologist ECORP Consulting, Inc. 2525 Warren Drive Rocklin, CA 95677 (916) 782-9100 (916) 782-9134 fax ATTACHMENT C Project Area Photographs State of California ⎯ The Resources Agency Primary # DEPARTMENT OF PARKS AND RECREATION HRI# PHOTOGRAPH RECORD Trinomial Page 1 of 1 Resource Name or #: West Antioch Creek Year 2010 Camera Format: Digital Lens Size: 35mm Film Type and Speed: Digital (Lisa Westwood) Negatives Kept at: ECORP Consulting, Inc. Mo. Day Time Exp./Frame Subject/Description View Toward Accession # 6 2 P1010008 View of canal crossing under car lot, from O-street sidewalk, viewing toward 10th street 10th street 6 2 P1010009 View of canal from same photo point as above, with building #2 in background 6 2 P1010011 View of ground conditions within fenced lot just north of the canal 6 2 P1010012 Detail of boarded canal roof that cars park on, at northern end 6 2 P1010013 Northern end of boarded canal roof with Building #1 in background 6 2 P1010014 View of canal with Building #2 in background 6 2 P1010015 Building #1 at left, Building #2 at right; with fenced in lot in foreground 6 2 P1010016 Detail of canal as it emerges from underneath the boarded canal roof at the northern end. Water flows toward camera. 6 2 P1010017 Backside of Building #2 at left and Building #1 at right, as viewed from Holiday Lodge parking lot 6 2 P1010018 Left to right: vacant Holiday Lodge main building, Building #3 (two story), and backside of Building #2, as viewed from Holiday Lodge parking lot 6 2 P1010019 Building #3 as viewed from Holiday Lodge parking lot 6 2 P1010020 Vacant portion of Holiday Lodge building 6 2 P1010021 Southern end of project area, where canal enters the culverts beneath 10th street North 6 2 P1010022 View of northern fence within fenced lot north of canal and south of apartment buildings East 6 2 IMAGE_137 Canal as it passes west of apartment complex with carport at right. View from inside fenced lot. North 6 2 IMAGE_138 Rock "rip-rap" along western face of canal near palm trees shown in IMAGE_137 6 2 IMAGE_139 Canal from inside fenced lot. Building #2 at right, end of Building #1 at left South 6 2 IMAGE_140 Canal adjacent to apartment buildings, showing degradation of defined channel and presence of debris 6 2 IMAGE_141 Canal adjacent to apartment buildings (at left) South 6 2 IMAGE_142 Canal adjacent to apartment buildings (at left) South DPR 523I (1/95) IMAGE_137 IMAGE_138 IMAGE_139 IMAGE_140 IMAGE_141 IMAGE_142 P1010008 P1010009 P1010011 P1010012 P1010013 P1010014 P1010015 P1010016 P1010017 P1010018 P1010019 P1010020 P1010021 P1010022 ATTACHMENT D Confidential Cultural Resource Site Locations and Site Records This attachment contains information on the specific locations of cultural resources. This information is not for publication or release to the general public. It is for planning, management and research purposes only. Information on the locations of prehistoric and historic sites are exempted form the California Freedom of Information Act, as specified in Government Code 6254.10. ATTACHMENT B Historic Architectural Evaluation of the Former Al Ford Dealership Buildings, 2013 \\sac-fp01\entp\4108300\130321.01\TECH\final\130620A.docx June 20, 2013 Mr. Chris Stabenfeldt ECORP Consulting, Inc. 2525 Warren Drive Rocklin, CA 95677 Subject: Historic Architectural Evaluation Former Al Eames Ford Dealership Buildings (APN 074-130-060) Antioch, Contra Costa County, California Dear Mr. Stabenfeldt: ECORP Consulting, Inc. (ECORP) requested that Mead & Hunt, Inc. (Mead & Hunt) prepare a historic architectural evaluation of the former Al Eames Ford Dealership buildings at 1400 West 10th Street in Antioch, California, to determine if either of the buildings qualifies for listing in the National Register of Historic Places (National Register) or the California Register of Historical Resources (California Register). See Attachment 1 for a location map. Mead & Hunt conducted a literature review, researched the history and architecture of the buildings, and completed a physical inspection of the buildings, and found no evidence to suggest the buildings possess qualities that qualify them for listing in the National Register or California Register. Based on available information, the buildings are not a designated local landmark or listed in a previous historic resource survey. As such, the former Al Eames Ford Dealership buildings are not considered historic properties under Section 106 of the National Historic Preservation Act (Section 106) or historical resources for the purposes of California Environmental Quality Act (CEQA). Objectives, Survey Methodology, and Research Design The objective of the historic architectural evaluation is to determine if the buildings qualify for listing in the National Register or the California Register and determine if the buildings are designated a local landmark or listed in a historic resource survey to comply with Section 106 and CEQA. See the Regulatory Context section below for further information on compliance with Section 106 and CEQA. On May 28, 2013, Mead & Hunt staff spoke with second generation owner Gary Eames regarding the history of the former Al Eames Ford Dealership buildings. On May 29, 2013, Mead & Hunt staff conducted a site visit to record the physical features of the buildings to assist in assessing their age, architectural features, and historic character. The site visit was completed by Mead & Hunt staff exceeding the Secretary of the Interior’s Standards for Professional Qualifications in history and architectural history. See the Description section below for a physical description of the building and Attachment 2, which includes a Department of Parks and Recreation 523 Form. Mr. Chris Stabenfeldt June 20, 2013 Page 2 \\sac-fp01\entp\4108300\130321.01\TECH\final\130620A.docx ECORP made a records search request to the Northwest Information Center (NWIC) of the California Historical Resources Information System and results were provided to Mead & Hunt on May 23, 2013, for cultural resource studies and documented properties within the general project area (see Attachment 3 for a list of these studies). Based on information provided to Mead & Hunt, none of the previous studies included the former Al Eames Ford Dealership buildings. A search of the California Office of Historic Preservation’s historic resources database listed five properties that have been identified as National Register-listed, State Landmarks, or as points of interest in Antioch (see Attachment 4). None of these properties are related to the former Al Eames Ford Dealership buildings and none of the properties are located on the parcel or immediately adjacent to the buildings on the parcel. Based on a review of the City of Antioch General Plan, the former Al Eames Ford Dealership buildings are not listed as a historical landmark or identified in a local survey of historic resources. Primary and secondary sources research materials provide an understanding of the development and history of Antioch and whether the former Al Eames Ford Dealership buildings have an association with any important historic themes or represent a distinctive property type within the city, region, state, or nation. Site-specific research determined the age of the building.1 Property Description The parcel (APN 074-130-060) includes two buildings: the dealership main building constructed in 1962 and an auxiliary body shop building constructed in 1972, which is located at the rear (north end) of the parcel.2 Attachment 1 includes a location map and Figure 1 provides an overview of the subject parcel. 1 Site-specific research to determine the age of the buildings included aerials dating to 1957-1966, city directories dating to 1956 and later, and an interview with the current property owner 2 City directories list the Al Eames Ford Dealership at this location in 1961. However, according to the property owner, whose family has owned the building since its construction, the dealership was constructed in 1962. Mr. Chris Stabenfeldt June 20, 2013 Page 3 \\sac-fp01\entp\4108300\130321.01\TECH\final\130620A.docx Figure 1. Location of subject parcel and former Al Eames Ford Dealership buildings. Al Eames Ford Dealership Main Building The main building is of concrete block construction and rests on a poured concrete foundation. Exterior walls consist of exposed concrete block with large areas on the principal (south) and side (east) elevations covered with brick veneer. Upper portions of the principal (south) and side (east and west) elevations are clad in vertical composite wood siding. Fenestration consists of replacement fixed-frame and plate glass storefront windows and a bank of four small, one-beside-one, sliding sash windows along the side (east) elevation. The main building has an aluminum-frame glass entry door to the former showroom on the side (east and west) elevations and four secondary metal doors to the building. Five metal, overhead retractable garage doors are located on the rear half of the side (east and west) elevations. The low-pitched front-gable roof is covered with rolled asphalt and has wide overhanging eaves that feature exposed wood brackets. Large wood-frame awnings with metal supports shelter driveways on the side (east and west) elevations. Mr. Chris Stabenfeldt June 20, 2013 Page 4 \\sac-fp01\entp\4108300\130321.01\TECH\final\130620A.docx The main building features several alterations, including replacement of the original storefront windows with narrow fixed-frame windows and brick veneer along the principal (south) elevation. The large awning on the side (west) elevation was constructed in 1985 and the overhead retractable garage doors were replaced c.2000. Several original windows have been enclosed with concrete block; others are covered with plywood. Brick planters located along the main (south) elevation, at the corners of the parcel, and at driveway entrances were later additions. Original signage has been removed. Images of the main building are provided in Figures 2, 3, and 4. Figure 2. Former Al Eames Ford Dealership Main Building located at 1400 West 10th Street, view facing northwest. Figure 3. Former Al Eames Ford Dealership Main Building, view facing east. Mr. Chris Stabenfeldt June 20, 2013 Page 5 \\sac-fp01\entp\4108300\130321.01\TECH\final\130620A.docx Figure 4. Detail of enclosed storefront windows of the Former Al Eames Ford Dealership Main Building, view facing northwest. Al Eames Ford Dealership Auxiliary Body Shop Building The concrete block auxiliary body shop building was constructed in 1972 to serve as a body shop for Al Eames Ford Dealership. Exterior walls exhibit vertical composite wood siding with six service bays located along the primary (east) elevation. An image of the auxiliary body shop building is provided in Figure 5. Figure 5. Al Eames Ford Dealership Auxiliary Body Shop Building, view facing north. Mr. Chris Stabenfeldt June 20, 2013 Page 6 \\sac-fp01\entp\4108300\130321.01\TECH\final\130620A.docx Historic Context Antioch was established in 1849 by William Wiggin Smith and Joseph Horton Smith. The discovery of coal near Mount Diablo resulted in an influx of immigrants and the establishment of towns in Contra Costa County in the mid-nineteenth century. Coal mining and agriculture fueled the local economy in the early years. A network of roads and railroads was constructed to transport goods and passengers. The San Joaquin River also provided an efficient means of transportation within the region. Early commercial development in Antioch occurred primarily along present-day West 2nd Street and West 3rd Street. Throughout the late nineteenth century and early decades of the twentieth century, Antioch gradually expanded south with new residential areas and isolated commercial buildings.3 Following national trends, construction and commercial growth in Antioch slowed considerably during the Great Depression. The post-World War II American economy was characterized by a housing boom and an increase in consumer goods, including automobile sales. New purpose-built automobile dealerships were constructed throughout the nation; their design is sometimes reflective of architectural planning guides provided by automobile manufacturers. No evidence suggests that the former Al Eames Ford Dealership building reflects a standard plan design by an automobile manufacturer. In Antioch, transportation corridors developed along State Highway 4 and West 10th Street.4 Automobile sales surged after World War II and numerous automobile-oriented businesses, including dealerships, opened along or near major urban transportation and commercial corridors, which was a common pattern throughout the nation and in California, and was reflected in Antioch during the post- World War II period. Among the earliest automobile dealerships during this period was Ralph’s, a c.1949 local dealership for the Hudson Motor Car Company, located at the corner of A Street and Wilbur Avenue and away from the subject parcel. In 1956 local businessman Al Eames began purchasing Flying A gas stations and acquired the Ford franchise in Antioch. City directories indicate that the original Al Eames Ford Sales was located at the corner of H Street and Third Street in downtown Antioch and away from the subject parcel. By 1962 Al Eames Ford Sales relocated to its current location on the northwest corner of West 10th Street and O Street, at the western edge of the city. According to the current owner and aerial photographs of the period, the main building was constructed in 1962. The front portion of the original rectangular building featured a showroom with large plate glass windows fronting West 10th Street to showcase the latest Ford models to passing motorists. The building also had an awning on the side (east) elevation, which is still extant. Two other automobile dealerships opened along West 10th Street within just a few years. Don Campbell’s Chevrolet dealership at the corner of West 10th Street and Somersville Road (currently Auto Center Drive) advertised new modern facilities and factory-trained mechanics in 1963. Another nearby auto dealership was Mazzei Pontiac/Cadillac, constructed in 1963 at 1530 West 10th 3 Antioch Historical Society et al., eds., Images of America: Antioch (Arcadia Publishing, 2005), 7; Mildred Brooke Hoover et al., eds., revised by Douglas E. Kyle, Historic Spots in California, 5th Edition (Stanford, Calif.: Stanford University Press, 2002), 66-67; Nationwide Environmental Title Research, LLC, Historic Topographical Maps, 1918, 1936, 1943, 1947, http://www.historicaerials.com/ (accessed 2 June 2013). 4 Robert Genat, The American Car Dealership (Osceola, Wis.: MBI Publishing Company), 42-44. Mr. Chris Stabenfeldt June 20, 2013 Page 7 \\sac-fp01\entp\4108300\130321.01\TECH\final\130620A.docx Street; this building is still extant. The corridor along West 10th Street traditionally was an entrance point into the city in which the three dealerships and other automobile-related business lined the street; however, over the years, the dealerships and other businesses moved to locations with greater visibility and access from State Highway 4.5 Four mechanic stalls were added to the rear of Al Eames Ford Dealership’s main building in 1964. The business gradually required more room and a separate building was constructed at the rear of the lot as a body shop in 1972. In 1985 Al Eames purchased the adjacent parcel to the west, demolished an existing building for more lot space, and added an awning to the side (west) elevation of the main building. Gary Eames, son of Al Eames, took over the Ford dealership until his retirement in 2000.6 Regulatory Context Application of the California Register of Historical Resources Criteria A property is a “historical resource” under California law if it is eligible for listing in the California Register, per Public Resource Code Section (PRC §) 5024.1. Historical resources include: a resource listed in or formally determined eligible for listing in the California Register; a resource included in a local register of historical resources as defined in PRC § 5020.1(k); or any object, building, structure, site, area, place, record or manuscript that a lead agency determines to be historically significant. A resource shall be considered to be “historically significant” if it meets the criteria for listing on the California Register. Criteria for listing include: 1. Association with events that have made a significant contribution to broad patterns of local or regional history 2. Association with the lives of persons important to local, California, or national history 3. Embodies the distinctive characteristics of a type, period, or region 4. Has yielded or has potential to yield information important to prehistory or history In addition to meeting one or more of the criteria for listing, the property must retain integrity. Integrity is defined as the ability of a property to convey its historic significance. The California Register references 5 Paul Burgarino, “Revitalization of auto-based storefronts gives Antioch street new life” Contra Costa Times, 11 November 2012, http://www.contracostatimes.com/antioch/ci_22053640 (accessed 14 June 2013).; Hudsonjet.net, “History of Hudson Dealerships,” http://home.comcast.net/~sarahdyoung/hudsondealerships.html (accessed 2 June 2013); Contra Costa County Telephone Directory, 1956, 1957, 1961, 1962, 1963 (available at Pleasant Hill Public Library, Pleasant Hill, California); Gary Eames, phone interview by Mead & Hunt, Inc., 28 May 2013; Nationwide Environmental Title Research, LLC, Historic Aerials 1957, 1958, 1964, 1966, http://www.historicaerials.com/ (accessed 2 June 2013). 6 Gary Eames, phone interview by Mead & Hunt, Inc., 28 May 2013. Mr. Chris Stabenfeldt June 20, 2013 Page 8 \\sac-fp01\entp\4108300\130321.01\TECH\final\130620A.docx the National Park Service’s seven aspects of integrity, including location, design, setting, materials, workmanship, feeling, and association, for determining integrity. PRC § 21084.1 and CEQA Guidelines (§15064.5 (D)(4)) require the evaluation of the historic significance of a property even if it is not listed in the California Register or in a local register of historical resources. In evaluating properties that are less than 50 years old, the California Register regulations require only that sufficient time has passed in order to obtain a scholarly perspective sufficient to allow an understanding of the property’s historic importance. Actions that would cause a substantial adverse change in the significance of a historical resource may result in a significant effect on the environment. Substantial adverse change is defined under CEQA as demolition or alteration such that a property no longer conveys its historical significance or no longer possesses the physical characteristics that account for its inclusion in the California Register or a local register, as determined by the lead agency. Application of the National Register Criteria for Evaluation The National Register is the official federal list of districts, sites, buildings, structures, and objects significant in American history, architecture, archaeology, engineering, and culture. Properties can be significant at the local, state, or national level. To qualify for listing in the National Register, properties generally must be at least 50 years old, possess historic significance, and retain physical integrity. For the former Al Eames Ford Dealership Building to be eligible for listing in the National Register, it must retain integrity and possess significance under one or more of the National Register Criteria, which include: A. Association with events or activities that have made a significant contribution to the broad patterns of history B. Association with the lives of persons significant in our past C. Association with the distinctive characteristics of a type, period, or method of construction, or represents the work of a master, possesses high artistic values, or represents a significant and distinguishable entity whose components may lack individual distinction D. Holds the potential to provide important information about prehistory or history To determine if a property is significant under one or more of these criteria, site-specific research and documentation must be completed to appropriately evaluate it within the associated historic context(s). In addition, a property must retain integrity to convey its significance by retaining the essential physical features common to its property type as discussed above. For more information on the National Register Criteria, see How to Apply the National Register Criteria for Evaluation (National Park Service 1990, revised 1998). Mr. Chris Stabenfeldt June 20, 2013 Page 9 \\sac-fp01\entp\4108300\130321.01\TECH\final\130620A.docx Evaluation and Recommendation The former Al Eames Ford Dealership buildings were evaluated for historical and architectural significance under the evaluation criteria for the California Register and the National Register. The former Al Eames Ford Dealership buildings were constructed after the formative period of post-World War II development, which began in 1945, and reflect a continuation of common post-World War II trends in commercial development that were well underway in Antioch and throughout the region by 1962. In addition, the buildings are the second location of Al Eames’ Ford dealership business in Antioch; individually under commerce, the original location would better exemplify the contribution of this local business to early and important commercial development in Antioch. Research does not suggest that this dealership individually served as the impetus to the growth of automobile services along West 10th Street nor does research indicate that this dealership individually was an important factor that spurred commercial growth within the community or the region during the 1960s. The former Al Eames Ford Dealership buildings lacks a direct and important association individually with a significant local or regional event or trend and does not possess significance under California Register Criterion 1 or National Register Criterion A. Research did not reveal the building to be associated with a person significant in local or regional history and the building has no known potential to provide information important to pre-history or history. Therefore, the building is not considered to possess significance under California Register Criteria 2 or 4 and National Register Criterion B or D. Automobile dealerships from the late post- World War II period and recent past represent a common property type constructed in Antioch, the region, the state, and nationally during the 1960s. Character- defining features of automobile dealerships of this period include a plate glass storefront for displaying new automobiles, signage (either free-standing or attached to the building) to attract passing motorists, a service wing with service bays, and broad overhangs or canopies to visually connect the adjacent sales lot to the building and showroom. Location may also be a character-defining feature; dealerships and sale lots were preferably sited on a corner parcel and along a major transportation corridor to capture the attention of motorists and those waiting at stoplights.7 Alterations to the former Al Eames Ford Dealership building result in the loss of integrity. The glass storefront is enclosed and now exhibits small fixed-frame windows that represent a loss of the primary character-defining feature of the type, obscuring its design and historic function and severing its associative values. No signage from the 1960s remains. Additional alterations that add to a loss of integrity include altered exterior wall materials, altered fenestration on side and rear elevations (replacement doors and windows), and the addition of the canopy to the side (west) elevation. Research did not indicate that the dealership building replicates or adheres to planning guides or standard plans for automobile showrooms developed by automobile manufacturers. The 1972 body shop does not meet the general age threshold for inclusion in the National Register or California Register and does not possess exceptional importance to qualify under Criterion Consideration G: Properties that have Achieved Significance Within the Last Fifty Years. As such, the former Al Eames Ford Dealership buildings do not retain the level of integrity necessary to convey the essential physical features of a 1960s 7 Chester H. Liebs, Main Street to Miracle Mile: American Roadside Architecture (Baltimore, Md.: The John Hopkins University Press, 1995), 88-90; Genat, The American Car Dealership, 39-63. Mr. Chris Stabenfeldt June 20, 2013 Page 10 \\sac-fp01\entp\4108300\130321.01\TECH\final\130620A.docx automobile dealership and showroom property type and do not qualify for listing in the California Register under Criterion 3 or the National Register under Criterion C. The former Al Eames Ford Dealership is recommended not eligible for listing in the California Register or the National Register. It is not considered a historic property under Section 106 and Mead & Hunt recommends a finding of no historic properties affected (per CFR 800.4(d)(1)). Under the CEQA, since the building is not a historical resource as defined in PRC § 5024.1, any changes to the former Al Eames Ford Dealership buildings resulting from the project would not cause a substantial adverse change in a historical resource. No further work is recommended. Sincerely, MEAD & HUNT, Inc. Timothy Smith Attachments Attachment 1. Location Map Location of the former Al Eames Ford Dealership, 1400 West 10th Street, Antioch, California Assessor Parcel Number (APN) 074-130-060. Attachment 2. Department of Parks and Recreation 523 Form DPR 523A (1/95) Page 1 of 6 *Required Information. State of California — The Resources Agency Primary # DEPARTMENT OF PARKS AND RECREATION HRI # PRIMARY RECORD Trinomial NRHP Status Code: Other Listings Review Code Reviewer Date *Resource Name or #: Al Eames Ford Dealership Building P1. Other Identifier: *P2. Location: *a. County Contra Costa County/Route/Postmile: b. Address 1400 West 10th St City Antioch Zip 94509 *c. UTM: USGS Quad: Antioch North, (1979) d. UTM: 10S 603228E 4207755N *e. Other Locational Data (APN #) 074-130-060 *P3a. Description: (Briefly describe resource below) See continuation sheet, page 3 *P3b. Resource Attibutes: HP6: 1-3 story commercial building **P4. Resources Present: X Building Structure Object Site District Elements of District Other P5a. Photograph or Drawing (Photograph required for buildings, structures, and objects.) P5b. Description of Photo: Facing northwest *P6. Date Constructed/Age: 1962 (main); 1972 (auxiliary) X Historic Prehistoric Both *P7. Owner and Address: *P8. Recorded by: Mead & Hunt, Inc. 180 Promenade Circle Sacramento, California 95834 *P9. Date Recorded: 5/29/2013 *P10. Type of Survey: Intensive X Reconnaissance Other Describe: *P11. Report Citation: Historic Architectural Evaluation of former Al Eames Ford Dealership Building, Mead & Hunt, Inc., 2013 (letter report to Mr. Chris Stabenfeldt, ECORP, dated 20 June 2013) *Attachments: NONE X Map Sheet X Continuation Sheet Building, Structure and Object Record Linear Resource Record Archaeological Record District Record Milling Station Record Rock Art Record Artifact Record Photograph Record Other (List): Caltrans DPR 523B (1/95) Page 2 of 6 *Required Information State of California  The Resources Agency: Primary # DEPARTMENT OF PARKS AND RECREATION HRI#: BUILDING, STRUCTURE, AND OBJECT RECORD *Resource Identifier: Al Eames Ford Dealership building *NRHP Status Code: 6Z B1. Historic Name: Al Eames Ford Dealership building B2. Common Name: County/Route/Postmile: B3. Original Use: Car dealership B4. Present Use: Commercial *B5. Architectural Style: Modern *B6. Construction History: 1962 (main building); 1972 (auxiliary body shop building) *B7. Moved? X No Yes Unknown Date: Original Location: *B8. Related Features (describe below): B9a. Architect: Unknown B9b. Builder: Unknown *B10. Significance: Theme: Commercial Development Area: Period of Significance: N/A Property Type: COMMERCE Applicable Criteria: N/A (See Continuation Sheet, page 3) B11. Additional Resource Attributes: B12. References: (See Continuation Sheet, page 3) (Sketch Map with north arrow required.) See Sketch map attached. B13. Remarks: B14. Evaluator: Timothy Smith Mead & Hunt, Inc. 180 Promenade Circle, Suite 240 Sacramento, CA 95834 Date of Evaluation: June 2013 (This space reserved for official comments.) Caltrans DPR 523L (1/95) Page 3 of 6 State of California  The Resources Agency Primary #: DEPARTMENT OF PARKS AND RECREATION HRI #/Trinomial CONTINUATION SHEET X Continuation Update Resource Identifier: Al Eames Ford Dealership County/Route/Postmile: *P3a. Description: (Briefly describe resource below) (Continued) The former Al Eames Ford Dealership includes a 1962 main building and a 1972 auxiliary building located at the rear of the property.1 The main building is of concrete block construction and rests on a poured concrete foundation. Exterior walls consist of exposed concrete block with large areas on the principal (south) and side (east) elevations covered with brick veneer. Upper portions of the principal (south) and side (east and west) elevations are clad in vertical composite wood siding. Fenestration consists of replacement fixed-frame and plate glass storefront windows and a bank of four small, one-beside-one, sliding sash windows along the side (east) elevation. The main building has an aluminum-frame glass entry door to the former showroom on the side (east and west) elevations and four secondary metal doors to the building. Five metal, overhead retractable garage doors are located on the rear half of the side (east and west) elevations. The low-pitched front-gable roof is covered with rolled asphalt and has wide overhanging eaves that feature exposed wood brackets. Large wood-frame awnings with metal supports shelter driveways on the side (east and west) elevations. The main building features several alterations, including replacement of the original storefront windows with narrow fixed- frame windows and brick veneer along the principal (south) elevation. The large awning on the side (west) elevation was constructed in 1985 and the overhead retractable garage doors were replaced c.2000. Several original windows have been enclosed with concrete block; others are covered with plywood. Brick planters located along the main (south) elevation, at the corners of the parcel, and at driveway entrances were later additions. Original signage has been removed. The concrete block auxiliary body shop building was constructed in 1972 to serve as a body shop for Al Eames Ford Dealership. Exterior walls exhibit vertical composite wood siding with six service bays located along the primary (east) elevation. B10. Significance: (Continued) The former Al Eames Ford Dealership buildings were evaluated for historical and architectural significance under the evaluation criteria for the California Register and the National Register. The former Al Eames Ford Dealership buildings were constructed after the formative period of post-World War II development, which began in 1945, and reflect a continuation of common post- World War II trends in commercial development that were well underway in Antioch and throughout the region by 1962. In addition, the buildings are the second location of Al Eames’ Ford dealership business in Antioch; individually under commerce, the original location would better exemplify the contribution of this local business to early and important commercial development in Antioch. Research does not suggest that this dealership individually served as the impetus to the growth of automobile services along West 10th Street nor does research indicate that this dealership individually was an important factor that spurred commercial growth within the community or the region during the 1960s. The former Al Eames Ford Dealership buildings lacks a direct and important association individually with a significant local or regional event or trend and does not possess significance under California Register Criterion 1 or National Register Criterion A. Research did not reveal the building to be associated with a person significant in local or regional history and the building has no known potential to provide information important to pre-history or history. Therefore, the building is not considered to possess significance under California Register Criteria 2 or 4 and National Register Criterion B or D. Automobile dealerships from the late post-World War II period and recent past represent a common property type constructed in Antioch, the region, the state, and nationally during the 1960s. Character-defining features of automobile dealerships of this period include a plate glass storefront for displaying new automobiles, signage (either free-standing or attached to the building) to attract passing motorists, a service wing with service bays, and broad overhangs or canopies to visually connect the adjacent sales lot to the building and showroom. Location may also be a character-defining feature; dealerships and sale lots were preferably sited on a corner parcel and along a major transportation corridor to capture the attention of motorists and those waiting at stoplights.2 Alterations to the former Al Eames Ford Dealership building result in the loss of integrity. The glass storefront is enclosed and now exhibits small fixed-frame windows that result in a loss of the primary character-defining feature 1 City directories list the Al Eames Ford Dealership at this location in 1961. However, according to the property owner, whose family has owned the building since its construction, the dealership was constructed in 1962. 2 Chester H. Liebs, Main Street to Miracle Mile: American Roadside Architecture (Baltimore, Md.: The John Hopkins University Press, 1995), 88-90; Genat, The American Car Dealership, 39-63. Caltrans DPR 523L (12/94) Page 4 of 6 State of California  The Resources Agency Primary #: DEPARTMENT OF PARKS AND RECREATION HRI #/Trinomial CONTINUATION SHEET X Continuation Update Resource Identifier: Al Eames Ford Dealership County/Route/Postmile: of the type, obscuring its design and historic function and severing its associative values. No signage from the 1960s remains. Additional alterations that add to a loss of integrity include altered exterior wall materials, altered fenestration on side and rear elevations (replacement doors and windows), and the addition of the canopy to the side (west) elevation. Research did not indicate that the dealership building replicates or adheres to planning guides or standard plans for automobile showrooms mentioned in the historic context. The 1972 auxiliary body shop building does not meet the general age threshold for inclusion in the National Register or California Register and does not possess exceptional importance to qualify under Criterion Consideration G: Properties that have Achieved Significance Within the Last Fifty Years. As such, the former Al Eames Ford Dealership buildings do not retain the level of integrity necessary to convey the essential physical features of a 1960s automobile dealership and showroom property type and do not qualify for listing in the California Register under Criterion 3 or the National Register under Criterion C. The former Al Eames Ford Dealership is recommended not eligible for listing in the California Register or the National Register. B12. References: Antioch Historical Society et al., eds., Images of America: Antioch. N.p.: Arcadia Publishing, 2005. Burgarino, Paul. “Revitalization of Auto-based Storefronts Gives Antioch Street New Life.” Contra Costa Times, 11 November 2012. http://www.contracostatimes.com/antioch/ci_22053640 (accessed 14 June 2013). Contra Costa County Telephone Directory, 1956, 1957, 1961, 1962, 1963. Available at Pleasant Hill Public Library, Pleasant Hill, California. Eames, Gary. Phone interview by Mead & Hunt, Inc., 28 May 2013. Genat, Robert. The American Car Dealership. Osceola, Wis.: MBI Publishing Company, n.d. Hoover, Mildred Brooke Hoover et al., eds., revised by Douglas E. Kyle. Historic Spots in California, 5th Edition. Stanford, Calif.: Stanford University Press, 2002. Hudsonjet.net, “History of Hudson Dealerships,” 2013. http://home.comcast.net/~sarahdyoung/hudsondealerships.html (accessed 2 June 2013). Liebs, Chester H. Main Street to Miracle Mile: American Roadside Architecture. Baltimore: The John Hopkins University Press, 1995. Nationwide Environmental Title Research, LLC, Historic Aerials 1918, 1936, 1943, 1947, 1957, 1958, 1964, 1966. http://www.historicaerials.com/ (accessed 2 June 2013). DPR 523J (1/95) Page 5 of __6___ *Required information State of California  The Resources Agency Primary # DEPARTMENT OF PARKS AND RECREATION HRI# LOCATION MAP Trinomial Resource Identifier: Al Earns Ford Dealership Building County/Route/Postmile: Contra Costa Map Name: Antioch North *Scale: 1:24,000 *Date of Map: 1979 DPR 523K (1/95) Page 6 of __6__ *Required information State of California  The Resources Agency Primary # DEPARTMENT OF PARKS AND RECREATION HRI# SKETCH MAP Trinomial *Resource Identifier: Al Eames Ford Dealership Building County/Route/Postmile: Contra Costa *Drawn By: Mead & Hunt, Inc. *Date: 2013 Attachment 3. Previous Cultural Resource Studies Identified Through IC Request Attachment 3. Previous Cultural Resource Studies Identified Through IC Request A review of these studies did not reveal information related to the former Al Eames Ford Dealership buildings or buildings on immediately adjacent parcels. Report Title Report No. Author Date Montezuma I & II Cultural Resources 11826 Theodoratus Cultural Research 1980 Archaeological Resources Inventory for Los Vaqueros Water Conveyance Alignments, Contra Costa County, California 13256 Allan G. Bramlette, et al. 1991 Assessment of Archaeological Resources: East/Central Contra Costa County Wastewater Management Plan 18352 Colin I. Busby 1976 Cultural Resources Assessment- Proposed Housing Site Between West 7th and 9th Streets and I Street, City of Antioch, Contra Costa County, California 21181 Basin Research Associates 1997 Contra Costa County Water Multipurpose Pipeline Project, Environmental Documentation Study, Cultural Resources Review 22812 Basin Research Associates 1997 Archaeological Survey and Cultural Resources Assessment for the City of Antioch’s proposed Antioch Recycled Water Pipeline project 31405 William Self Associates, Inc. 2006 Draft Comprehensive Management Plan, Environmental Impact Statement, Juan Bautista de Anza National Historic Trail, Arizona and California 33545 National Park Service (Western Regional Office) 1994 Cultural Resources Inventory Report for the Ironhouse Sanitary District, Wastewater Treatment Plant Expansion, Contra Costa and Sacramento Counties, California 33821 Jones & Stokes 2007 Cultural Resource Assessment, Delta Diablo Sanitation District and the City of Antioch, Recycled Water Pipeline Extension Project, Antioch, Contra Costa County, California 35196 William Self Associates, Inc. 2006 Archaeological Reconnaissance of Proposed Park Site Situated in Northwestern Antioch (ARs 78-138) 1418 Archaeological Resource Service 1978 Western Leg – Alaska Highway Pipeline Project: Cultural Resources; Volume II: Pacific Gas Transmission Company, Pacific Gas and Electric Company, Evaluation of Previously Recorded Archaeological Sites 4991 Wirth Associates, Inc. 1980 An Investigation of the Cultural Resources Within the Antioch Marina Park, Antioch, Contra Costa County, California 5798 Peter M. Banks 1983 Cultural Resources Evaluation for the Delta Landing EIR/EIS, Antioch, Contra Costa County, California 7386 David Chavez & Associates Cultural Resources Consultants 1985 Archaeological Survey Report for the Highway 4/Somersville Cell Site, Antioch, Contra Costa County 25238 Pacific Legacy, Inc. 2002 Report Title Report No. Author Date Historical Resources Compliance Report: Burlington Northern Santa Fe Railway, Double Track Project (Segment 2), Oakley (MP 1146.1) to Port Chicago (MP 1164.4), In and near the Cities of Oakley, Antioch, and Pittsburgh, and the Port Chicago Naval Weapons Station, Contra Costa County 30387, 35861 CRM Tech 2005 Cultural Resources Report: Delta Entergy Center Site (DEC) and Associated Linears, Cities of Pittsburg and Antioch, Contra Costa County, California 30579 Basin Research Associates, Inc. 2004 Cultural Resource Assessment Report Supplement, Delta Diablo Sanitation District and the City of Antioch Recycled Water Pipeline Extension Project, Antioch Contra Costa County, California 37097 William Self Associates, Inc. 2010 Revised Cultural Resources Assessment of the Accidental Discovery at the Antioch Marina Boat Launch Facility Project, Antioch, Contra Costa County, California (Corps File No. SPK- 2004-00520; LSA Project No. CAN1002) 38577 LSA Associates, Inc. 2010 Revised Preliminary Historic Resources Inventory, Contra Costa County, California HRI-1989 Contra Costa County Community Development Dept. 1989 Attachment 4. Built Environment Properties in the California Historic Properties Database Attachment 4. Built Environment Properties in the California Historic Properties Database None of these properties are related to the former Al Eames Ford Dealership buildings and none of the properties are located on the parcel or immediately adjacent to the buildings on the parcel. Name Status Date Listed Landmark Plaque Number Black Diamond Mines National Register 1991 N1737 Roswell Butler Hard House National Register 1993 N1844 Mount Diablo Coal Field State Landmark 1980 932 Riverview Union High School Building National Register 1998 N2033 Shannon-Williamson Ranch National Register 1987 N1478 Source: California State Parks, Office of Historic Preservation. California Historic Resources for Grass Valley, Nevada County, California, available at http://ohp.parks.ca.gov/ListedResources/?view=county&criteria=7 (accessed 2 June 2013). ATTACHMENT C Updated Records Search Confirmation ATTACHMENT D Updated Field Survey Photographs State of California  The Resources Agency Primary # DEPARTMENT OF PARKS AND RECREATION HRI# PHOTOGRAPH RECORD Trinomial Page 1 of 1 Resource/Project Name: West Antioch Creek Year 2013 Camera: Lens Size: 35mm Film Type and Speed: Digital Negatives Kept at: ECORP Consulting, Inc. Mo. Day Time Exp./Frame Subject/Description View Toward Accession # 8 23 Overview of field 074 130 081 from NE corner SW 023 8 23 Field 074 130 081 east end North 024 8 23 field 074 130 081 east end South 025 8 23 field 074 130 081 SE corner NE 026 8 23 field 074 130 081 south end East 027 8 23 field 074 130 081 from center NW 028 8 23 field 074 130 081 from center NE 029 8 23 field 074 130 081 from center at bi-level South 030 8 23 field 074 130 081 from center at bi-level North 031 8 23 field 074 130 081 overview of SE portion SE 032 8 23 field 074 130 081 along north center West 033 8 23 field 074 130 081 along north center East 034 8 23 field 074 130 081 along north center SE 035 8 23 field 074 130 081 along center South 036 8 23 field 074 130 081 along center North 037 8 23 field 074 130 081 center NW 038 8 23 field 074 130 081 center South 039 8 23 field 074 130 081 center North 040 8 23 field 074 130 081 west end NE 041 8 23 field 074 130 081 west edge SW 042 8 23 field 074 130 081 west edge NE 043 8 23 field 074 130 081 west side overview SE 044 8 23 North end APE creek 074 040 044 from west end SE 045 8 23 Pavement in 074 040 047 (mess up) SW 046 8 23 Pavement in 074 040 047 (mess up) South 047 8 23 Clipboard (mess up) - 048 8 23 Heavy vegetated area north of RR tracks NE 049 8 23 Creek area 074 040 044 directly south of RR tracks East 050 8 23 Pavement west of creek area 074 040 044 North 051 8 23 Transmission pole in APE 074 040 047 SW 052 8 23 Area north of museum parking lot 074 040 046 NE 053 8 23 East central portion of APE 074 040 036 North 054 8 23 Fenced off area in 074 040 036 (football shaped) NW 055 8 23 Fenced off area in 074 040 036 (football shaped) West 056 8 23 Stacked pallets west of fenced off area in 074 040 036 (football shaped) NW 057 8 23 Fenced off area in 074 040 036 (football shaped) West 058 8 23 Fenced off area in 074 040 036 (football shaped) SE 059 8 23 Fenced off area in 074 040 036 (south of football shaped) West 060 8 23 Central portion (adjacent to O Street) West 061 8 23 Parking lot, NE intersection of O and 10th streets South 062 8 23 South end of Project SE 063 8 23 Boardwalk at O and 10th intersection North 064 8 23 Boardwalk at O and 10th intersection South 065 8 23 South end of 074 130 076 north of motel North 066 State of California  The Resources Agency Primary # DEPARTMENT OF PARKS AND RECREATION HRI# PHOTOGRAPH RECORD Trinomial Page 1 of 1 Resource/Project Name: West Antioch Creek Year 2013 Camera: Lens Size: 35mm Film Type and Speed: Digital Negatives Kept at: ECORP Consulting, Inc. Mo. Day Time Exp./Frame Subject/Description View Toward Accession # 8 23 Center of 074 130 064 North 067 8 23 Creek area of 074 130 XXX SE 068 8 23 Creek area of 074 130 XXX NE 069 8 23 Creek area of 074 130 XXX North 070 8 23 Creek area of 074 130 XXX narrow portion South 071 8 23 Creek area of 074 130 XXX at west turn NW 072 8 23 Creek area of 074 130 XXX at north-south North 073 8 23 North creek area 074 040 044 from east side North 074 8 23 North central Creek area 074 040 044 West 075 8 23 North creek area 074 040 044 looking towards museum South 076 8 23 North creek area 074 040 044 (north end of fenced off area) West 077 8 23 North creek area 074 040 044 (north end of fenced off area) NW 078 8 23 North Creek area 074 040 044 directly north of W 4Th Street South 079 ATTACHMENT E Updated Native American Coordination Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project APPENDIX D Noise Assessment Environmental Noise Assessment West Antioch Creek Channel Improvement Project Antioch, California BAC Job # 2012-078 Prepared For: ECORP Consulting, Inc. Attn: Mr. Chris Stabenfeldt 2525 Warren Drive Rocklin, CA 95677 Prepared By: Bollard Acoustical Consultants, Inc. Paul Bollard, President October 17, 2013 3551 Bankhead Road < Loomis, CA 95650 < Phone: (916) 663-0500 < Fax: (916) 663-0501 < BACNOISE.COM Bollard Acoustical Consultants, Inc. (BAC) Environmental Noise Analysis West Antioch Creek Channel Improvement Project – Antioch, California Page 1 CEQA Checklist NOISE – Would the Project Result in: NA – Not Applicable Potentially Significant Impact Less than Significant with Mitigation Incorporated Less Than Significant Impact No Impact a) Exposure of persons to or generation of noise levels in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies? X b) Exposure of persons to or generation of excessive groundborne vibration or groundborne noise levels? X c) A substantial permanent increase in ambient noise levels in the project vicinity above levels existing without the project? X d) A substantial temporary or periodic increase in ambient noise levels in the project vicinity above level existing without the project? X e) For a project located within an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project expose people residing or working in the project to excessive noise levels? X f) For a project within the vicinity of a private airstrip, would the project expose people residing or working in the project area to excessive noise levels? X Bollard Acoustical Consultants, Inc. (BAC) Environmental Noise Analysis West Antioch Creek Channel Improvement Project – Antioch, California Page 2 Introduction & Project Description The West Antioch Creek Channel Improvement Project (Proposed Project) is located in the City of Antioch, Contra Costa County. The Proposed Project would reduce flood risk in the project area by increasing the capacity of the West Antioch Creek channel between West Tenth Street and West Eighth Street and re-establishing the 25 year flood protection capacity of the channel downstream of West Eighth Street to the BNSF railroad trestle. The Proposed Project is intended to reduce flooding in the project area. Currently within the project area the West Antioch Creek channel transitions from structural plate steel arch culverts under West Tenth Street, to a concrete-lined ditch covered by wooden planking under a parking lot at 1400 West Tenth Street, to an open concrete-lined ditch adjacent to a carport for an apartment building, to an earthen channel, to a concrete box culverts under West Fourth Street, to a concrete channel that extends approximately 400 feet north of West Fourth Street, to an earthen channel that continues north to the BNSF railroad trestle. The Proposed Project would alter two adjacent reaches of the channel. Project work in Reach A (conveyance improvements) would increase the capacity of the conveyance system between West Tenth Street and approximately West Eighth Street. Project work in Reach B (desilting) would desilt the channel from approximately West Eighth Street to approximately 200 feet north of the BNSF railroad trestle to restore design capacity. Either reach can be improved independently from the other or concurrently, but work in both reaches must be conducted to realize improved levels of flood protection. Figure 1 shows the project extents. Five alternatives were proposed for Reach A (conveyance). All alternatives would use pre-cast concrete box culverts under West Tenth Street. However, the alternatives differ in the conveyance configuration from West Tenth Street to approximately West Eighth Street. Although the conveyance configurations differ under these alternatives, the proposed hours of construction and heavy equipment required for construction is similar. As a result, the potential noise impact associated with each of the alternatives is also considered to be similar. As a result, a single analysis of construction noise generation is considered to be representative of potential impacts for all Reach A alternatives. Bollard Acoustical Consultants, Inc. (BAC) Environmental Noise Analysis West Antioch Creek Channel Improvement Project – Antioch, California Page 4 Fundamentals of Noise Noise is often defined simply as unwanted sound, and thus is a subjective reaction to characteristics of a physical phenomenon. Researchers have generally agreed that A-weighted sound pressure levels (sound levels) are very well correlated with community reaction to noise. The unit of sound level measurement is the decibel (dB), sometimes expressed as dBA. Variations in sound levels over time are represented by statistical descriptors, and by time- weighted composite noise metrics such as the Day-Night Average Level (Ldn), or the Community Noise Equivalent Level (CNEL). Throughout this analysis, A-weighted sound pressure levels will be used to describe community noise unless otherwise indicated. Please refer to Appendix A for definitions of acoustic terminology. The decibel notation used for sound levels describes a logarithmic relationship of acoustical energy, so that sound levels cannot be added or subtracted in the conventional arithmetic manner. For example, a doubling of acoustical energy results in a change of 3 decibels (dBA), which is usually considered to be barely perceptible. A 10-fold increase in acoustical energy yields a 10 decibel change, which is subjectively like a doubling of loudness. Table 1 shows common noise levels associated with various sources. Community noise is commonly described in terms of the “ambient” noise level, which is defined as the all-encompassing noise level associated with a given noise environment. A common statistical tool to measure the ambient noise level is the average, or equivalent sound level (Leq), which corresponds to a steady-state sound level containing the same total energy as a time-varying signal over a given period (usually one hour). The Leq is the foundation of the composite noise descriptors such as Ldn and CNEL, and shows very good correlation with community response to noise. Table 1 Typical A-Weighted Sound Levels of Common Noise Sources Loudness Ratio dBA Description 128 130 Threshold of pain 64 120 Jet aircraft take-off at 100 feet 32 110 Riveting machine at operators position 16 100 Shotgun at 200 feet 8 90 Bulldozer at 50 feet 4 80 Diesel locomotive at 300 feet 2 70 Commercial jet aircraft interior during flight 1 60 Normal conversation speech at 5-10 feet 1/2 50 Open office background level 1/4 40 Background level within a residence 1/8 30 Soft whisper at 2 feet 1/16 20 Interior of recording studio Bollard Acoustical Consultants, Inc. (BAC) Environmental Noise Analysis West Antioch Creek Channel Improvement Project – Antioch, California Page 5 Fundamentals of Vibration Vibration is like noise in that it involves a source, a transmission path, and a receiver. While vibration is related to noise, it differs in that noise is generally considered to be pressure waves transmitted through air, while vibration is usually associated with transmission through a structure. As with noise, vibration consists of an amplitude and frequency. A person’s response to vibration will depend on their individual sensitivity as well as the amplitude and frequency of the source. Vibration can be described in terms of acceleration, velocity, or displacement. A common practice is to monitor vibration measures in terms of peak particle velocities (inches/second). Standards pertaining to perception as well as damage to structures have been developed for vibration in terms of peak particle velocity. Human response to vibration is difficult to quantify. Vibration can be felt or heard well below the levels that produce any damage to structures. The duration of the event has an effect on human response, as does frequency. Generally, as the duration and vibration frequency increase, the potential for adverse human response increases. Table 2 summarizes the average human response to vibration that may be anticipated when a person is at rest in quiet surroundings. If the person is engaged in any type of physical activity, the level required for the responses indicated is increased considerably. Table 2 Human Response to Ground Vibration Response  Ground Vibration Range ppv   (inches per second)  Barely to distinctly perceptible 0.02–0.10  Distinctly perceptible to strongly perceptible 0.10–0.50  Strongly perceptible to mildly unpleasant 0.50–1.00  Mildly unpleasant to distinctly unpleasant 1.00–2.00  Distinctly unpleasant to intolerable 2.00–10.00  Source: Caltrans 2004.  Bollard Acoustical Consultants, Inc. (BAC) Environmental Noise Analysis West Antioch Creek Channel Improvement Project – Antioch, California Page 6 Existing Ambient Noise Environment in the Project Vicinity The existing ambient noise environment in the immediate project vicinity is defined primarily by local traffic on West 4th, West 10th, and O Streets, as well as from the railroad tracks to the North of the project vicinity and light industrial uses. To generally quantify the existing ambient noise environment in the project vicinity, short-term ambient noise surveys were conducted at four (4) locations on the project site on October 4, 2013. The noise survey locations are shown on Figure 1. Larson Davis Laboratories (LDL) Model 820 precision integrating sound level meters were used for the ambient noise level measurement surveys. The meters were calibrated before use with an LDL Model CAL200 acoustical calibrator to ensure the accuracy of the measurements. The equipment used meets all specifications of the American National Standards Institute for Type 1 sound level meters (ANSI S1.4). A summary of the noise level measurement results are provided in Table 3. The Table 3 data indicate that the measured ambient noise conditions in the project vicinity are typical for residential areas affected primarily by local traffic noise sources. Table 3 Ambient Short-Term Noise Level Measurement Survey West Antioch Creek Project Site # Interval # Time Duration Leq, dB Lmax, dB 1 2 1:15 pm 15 min 54 68 2 3 1:37 pm 15 min 48 58 3 4 1:58 pm 15 min 55 66 4 5 2:20 pm 15 min 52 68 Notes: - Traffic from O Street and W. 10th Street is dominant. - Distant back-up beeper from adjacent industrial land uses. - Noise measurement locations are indicated on Figure 1 Bollard Acoustical Consultants, Inc. (BAC) Environmental Noise Analysis West Antioch Creek Channel Improvement Project – Antioch, California Page 7 Criteria for Acceptable Noise Exposure City of Antioch General Plan Section 11.6 of the City of Antioch General Plan contains the City’s noise policies. The following specific policies which pertain to temporary construction are included within the General Plan: i. Ensure that construction activities are regulated as to hours of operation in order to avoid or mitigate noise impacts on adjacent noise-sensitive land uses. j. Require proposed development adjacent to occupied noise sensitive land uses to implement a construction-related noise mitigation plan. This plan would depict the location of construction equipment storage and maintenance areas, and document methods to be employed to minimize noise impacts on adjacent noise sensitive land uses. k. Require that all construction equipment utilize noise reduction features (e.g., mufflers and engine shrouds) that are no less effective than those originally installed by the manufacturer. m. Prior to the issuance of any grading plans, the City shall condition approval of subdivisions and non-residential development adjacent to any developed/occupied noise-sensitive land uses by requiring applicants to submit a construction-related noise mitigation plan to the City for review and approval. The plan should depict the location of construction equipment and how the noise from this equipment will be mitigated during construction of the project through the use of such methods as: • The construction contractor shall use temporary noise-attenuation fences, where feasible, to reduce construction noise impacts on adjacent noise sensitive land uses. • During all project site excavation and grading on-site, the construction contractors shall equip all construction equipment, fixed or mobile, with properly operating and maintained mufflers, consistent with manufacturers’ standards. The construction contractor shall place all stationary construction equipment so that emitted noise is directed away from sensitive receptors nearest the project site. • The construction contractor shall locate equipment staging in areas that will create the greatest distance between construction-related noise sources and noise-sensitive receptors nearest the project site during all project construction. Bollard Acoustical Consultants, Inc. (BAC) Environmental Noise Analysis West Antioch Creek Channel Improvement Project – Antioch, California Page 8 • The construction contractor shall limit all construction-related activities that would result in high noise levels to between the hours of 7:00 a.m. and 7:00 p.m. Monday through Saturday. No construction shall be allowed on Sundays and public holidays. n. The construction-related noise mitigation plan required shall also specify that haul truck deliveries be subject to the same hours specified for construction equipment. Additionally, the plan shall denote any construction traffic haul routes where heavy trucks would exceed 100 daily trips (counting those both to and from the construction site). To the extent feasible, the plan shall denote haul routes that do not pass sensitive land uses or residential dwellings. Lastly, the construction-related noise mitigation plan shall incorporate any other restrictions imposed by the City. Bollard Acoustical Consultants, Inc. (BAC) Environmental Noise Analysis West Antioch Creek Channel Improvement Project – Antioch, California Page 9 Evaluation of Project Noise Generation The project would essentially generate changes in ambient noise and vibration levels in the immediate project vicinity in the following three different ways: • On-site construction equipment used for project demolition, culvert replacement, roadway reconstruction, and channel desilting. • Off-site heavy truck traffic hauling silt away from the project area. • Off-site changes in traffic patterns resulting from construction detours. On-Site Equipment Noise Generation During the construction phases of the proposed project, noise from construction activities would add to the noise environment in the immediate project vicinity. Activities involved in typical construction would generate maximum noise levels, as indicated in Table 4, ranging from 70 to 90 dB at a distance of 50 feet. Table 4 Typical Construction Equipment Noise Equipment Description Maximum Noise Level at 50 feet, dBA Auger drill rig 85 Backhoe 80 Chain saw 85 Compactor (ground) 80 Compressor (air) 80 Concrete mixer truck 85 Concrete pump truck 82 Concrete saw 90 Crane (mobile or stationary) 85 Dozer 85 Dump truck 84 Excavator 85 Front end loader 80 Generator (25 kilovolt-amperes [kVA] or less) 70 Grader 85 Jackhammer 85 Mounted impact hammer (hoe ram) 90 Paver 85 Pneumatic tools 85 Pumps 77 Scraper 85 Vibratory concrete mixer 80 Welder/Torch 73 Source: Federal Highway Administration 2006. Bollard Acoustical Consultants, Inc. (BAC) Environmental Noise Analysis West Antioch Creek Channel Improvement Project – Antioch, California Page 10 Off-Site Haul Truck Noise Generation The proposed project would result in the generation of approximately 20 heavy truck trips per day for the hauling of vegetation and soils to and from the project site. BAC file data for both loaded and empty 20-ton haul trucks indicates that a typical haul truck passby at 50 feet can be expected to generate an average Sound Exposure Level (SEL) of approximately 80 dB. Given approximately 20 haul trips in a typical day, it is reasonable to conclude that there would likely be no more than 4 off-site heavy truck trips in a given hour. Based on 4 trips in an hour, and a SEL of 80 dB at 50 feet, the hourly average noise level resulting from those four trips would be 50 dB Leq at a distance of 50 feet. Noise Generated by Project Detours During a portion of Reach A-1 project demolition, culvert replacement, and roadway reconstruction, West 10th Street will be closed and local traffic will detour around the construction. As part of the proposed project, a Traffic Management Plan (TMP) will be prepared which will evaluate detour plans for street closures. It is anticipated that the TMP will develop detour plans which maximize the use of the larger West 4th and L Streets, while minimizing cut through traffic on the smaller residential roadways. Vibration Generated by Heavy Equipment BAC file data for heavy earthmoving equipment indicates that vibration levels range from 0.02 inches/second for a passing bulldozer at 35 feet to 0.005 inches/second for a front-loader at distance of 100 feet. These data indicate that, unless the receiver is very close to the equipment, ground borne vibration generated by heavy earthmoving equipment is negligible. The facades of the nearest existing residences to the proposed construction (apartments along east side of Reach B and single-family residences along the east side of “O” Street) will be approximately 50+ feet from the proposed construction and desilting operations. As a result, project-generated vibration levels at those nearest residences are predicted to be well below 0.1 inches/second peak particle velocity. Bollard Acoustical Consultants, Inc. (BAC) Environmental Noise Analysis West Antioch Creek Channel Improvement Project – Antioch, California Page 11 Support for Checklist Answers a) Exposure of persons to or generation of noise levels in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies? As indicated above the City of Antioch General Plan does not apply specific noise standards to construction activities. Rather, the City’s noise policies noise identify practical measures which should be implemented to the extent possible to reduce the potential to adverse public reaction to noise generated during short-term construction projects. To reduce this impact to a level of insignificance, the following specific measures are recommended: 1. During all project site excavation and grading on-site, the construction contractors shall equip all construction equipment, fixed or mobile, with properly operating and maintained mufflers, consistent with manufacturers’ standards. 2. The construction contractor shall place all stationary construction equipment so that emitted noise is directed away from sensitive receptors nearest the project site. 3. The construction contractor shall locate equipment staging in areas that will create the greatest distance between construction-related noise sources and noise-sensitive receptors nearest the project site during all project construction. 4. The construction contractor shall limit all construction-related activities that would result in high noise levels to between the hours of 7:00 a.m. and 7:00 p.m. Monday through Saturday. No construction shall be allowed on Sundays and public holidays. 5. Haul truck activity shall be subject to the same hours specified for construction equipment. 6. Project haul routes shall be developed in the Traffic Management Plan which minimize the usage of routes through residential neighborhoods or other sensitive land uses. Following implementation of these mitigation measures, this impacts is considered Less than Significant. Bollard Acoustical Consultants, Inc. (BAC) Environmental Noise Analysis West Antioch Creek Channel Improvement Project – Antioch, California Page 12 b) Exposure of persons to or generation of excessive groundborne vibration or groundborne noise levels? The analysis above indicates that peak particle velocities of less than 0.1 inches per second are predicted for the nearest residences to the project site. Because the Table 2 data indicate such levels would be barely perceptible, and because construction activities would be temporary and limited to daytime hours, this impact is considered Less than Significant. c) A substantial permanent increase in ambient noise levels in the project vicinity above levels existing without the project? The proposed project would occur for a limited duration. As a result, no permanent increase in ambient noise levels would result from this project and this impact is considered Less than Significant. d) A substantial temporary or periodic increase in ambient noise levels in the project vicinity above level existing without the project? As indicated in Table 4, construction equipment generates elevated noise levels while in use. However, because the project would temporary in nature, limited to daytime hours, and would utilize the construction noise mitigation measures required in the City of Antioch General Plan noise policies (See Pages 7-8 of this report), This impact is considered Less than Significant with Mitigation Incorporated. e) For a project located within an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project expose people residing or working in the project to excessive noise levels? The project is not located within an airport land use plan or within 2 miles of a public use airport. As a result, relative to criteria (e), there is No Impact. f) For a project within the vicinity of a private airstrip, would the project expose people residing or working in the project area to excessive noise levels? The project is not located in the vicinity of a private use airstrip. As a result, relative to criteria (f), there is No Impact. Appendix A Acoustical Terminology Acoustics The science of sound. Ambient The distinctive acoustical characteristics of a given space consisting of all noise sources Noise audible at that location. In many cases, the term ambient is used to describe an existing or pre-project condition such as the setting in an environmental noise study. Attenuation The reduction of an acoustic signal. A-Weighting A frequency-response adjustment of a sound level meter that conditions the output signal to approximate human response. Decibel or dB Fundamental unit of sound, A Bell is defined as the logarithm of the ratio of the sound pressure squared over the reference pressure squared. A Decibel is one-tenth of a Bell. CNEL Community Noise Equivalent Level. Defined as the 24-hour average noise level with noise occurring during evening hours (7 - 10 p.m.) weighted by a factor of three and nighttime hours weighted by a factor of 10 prior to averaging. Frequency The measure of the rapidity of alterations of a periodic signal, expressed in cycles per second or hertz. Ldn Day/Night Average Sound Level. Similar to CNEL but with no evening weighting. Leq Equivalent or energy-averaged sound level. Lmax The highest root-mean-square (RMS) sound level measured over a given period of time. Loudness A subjective term for the sensation of the magnitude of sound. Masking The amount (or the process) by which the threshold of audibility is for one sound is raised by the presence of another (masking) sound. Noise Unwanted sound. Peak Noise The level corresponding to the highest (not RMS) sound pressure measured over a given period of time. This term is often confused with the Maximum level, which is the highest RMS level. RT6060 The time it takes reverberant sound to decay by 60 dB once the source has been removed. Sabin The unit of sound absorption. One square foot of material absorbing 100% of incident sound has an absorption of 1 sabin. SEL A rating, in decibels, of a discrete event, such as an aircraft flyover or train passby, that compresses the total sound energy of the event into a 1-s time period. Threshold The lowest sound that can be perceived by the human auditory system, generally of Hearing considered to be 0 dB for persons with perfect hearing. Threshold Approximately 120 dB above the threshold of hearing. of Pain Draft Initial Study and Mitigated Negative Declaration West Antioch Creek Channel Improvement Project APPENDIX E Paleontological Assessment 1 2012-140 West Antioch Creek\Cultural Resources\Paleontology\West Antioch Creek Paleo Summary 2525 Warren Drive Rocklin, California 95677 Phone: (916) 782-9100 Fax: (916) 782-9134 Web: www.ecorpconsulting.com METHODS A paleontological assessment of the West Antioch Creek project (project) in Contra Costa County, California was conducted by ECORP Biologist Marin Meza. The assessment included a query of the University of California Museum of Paleontology (UCMP) online catalog records for Contra Costa County, a review of regional geologic maps from the California Geological Survey, and a review of existing literature on paleontological resources of Contra Costa County. The purpose of the paleontological assessment was to determine: the sensitivity of the project area; whether or not known occurrences of paleontological resources are present within or immediately adjacent to the project area; and whether or not implementation of the project could result in significant impacts to paleontological resources. Paleontological resources include mineralized (fossilized) or unmineralized bones, teeth, soft tissues, shells, wood, leaf impressions, footprints, burrows, and microscopic remains. Sedimentary rock units may be described as having (a) high (or known) potential for containing significant nonrenewable paleontological resources; (b) low potential for containing nonrenewable paleontological resources; or (c) undetermined potential (SVP 2013). The determination of a site’s (or rock unit's) degree of paleontological potential is first founded on a review of pertinent geological ad paleontological literature and on locality records of specimens deposited in institutions. The sensitivity of rock units in which fossils occur may be divided into three operational categories: I. HIGH POTENTIAL. Rock units from which vertebrate or significant invertebrate fossils or significant suites of plant fossils have been recovered are considered to have a have potential for containing significant nonrenewable fossiliferous resources. These units include but are not limited to, sedimentary formations and some volcanic formations which contain significant nonrenewable paleontological resources anywhere within their geographical extent, and sedimentary rock units temporally or lithologically suitable for the preservation of fossils. Sensitivity comprises both (a) the potential for yielding abundant or significant vertebrate fossils or for yielding a few significant fossils, large or small, vertebrate, invertebrate, or botanical and (b) the importance of recovered evidence for new and significant taxonomic, phylogenetic, ecologic, or stratigraphic data. Areas which contain potentially datable organic remains older than Recent, including deposits associated with nests or middens, and areas which may contain new vertebrate deposits, traces, or trackways are also classified as significant. II. UNDETERMINED POTENTIAL. Specific areas underlain by sedimentary rock units for which little information is available are considered to have undetermined fossiliferous potentials. Field surveys by a qualified vertebrate paleontologist to specifically determine the potentials of the rock units are required before programs of impact mitigation for such areas may be developed. III. LOW POTENTIAL. Reports in the paleontological literature or field surveys by a qualified vertebrate paleontologist may allow determination that some areas or units have low potentials for yielding significant fossils. Such units will be poorly represented by specimens in institutional collections. These deposits generally will not require protection or salvage operations. 2 2012-140 West Antioch Creek\Cultural Resources\Paleontology\West Antioch Creek Paleo Summary 2525 Warren Drive Rocklin, California 95677 Phone: (916) 782-9100 Fax: (916) 782-9134 Web: www.ecorpconsulting.com RESULTS The UCMP has 11,888 paleontological specimens from 2,476 localities in Contra Costa County (UCMP 2013a). Not all specimens in the UCMP collections have been cataloged and digitized however, and other specimens have likely been recorded within the vicinity of the project area. The specific location of all localities is available only to qualified paleontologists, and the location of these occurrences relative to the project area is unclear without more extensive archival research. Of the 11,888 specimens recorded within Contra Costa County, 1,064 are fossil invertebrates, 820 are microfossils, 208 are plant fossils, and 9,794 are fossil vertebrates (UCMP 2013a). At least seventeen UCMP records are recorded in Antioch where the project is located (Table 1) (UCMP 2013a). Table 1 – Previously Recorded Paleontological Specimens Near the Project Area Spec # Class Genus, Species Period Epoch Loc ID# Locality Name County M23842 Polythalamea Foraminifera, sorted assemblage Tertiary Eocene MF8077 Antioch Contra Costa V35651 Mammalia unspecified Quaternary Pleisto cene V4008 Antioch 2 Contra Costa V35652 Mammalia unspecified Quaternary Pleisto cene V4008 Antioch 2 Contra Costa V35653 Mammalia Bison Quaternary Pleisto cene V4008 Antioch 2 Contra Costa V35654 Mammalia unspecified Quaternary Pleisto cene V4008 Antioch 2 Contra Costa V35655 Mammalia Glossotherium Quaternary Pleisto cene V4008 Antioch 2 Contra Costa V153899 Mammalia Equus Quaternary Pleisto cene V4008 Antioch 2 Contra Costa V58180 Mammalia Equus caballus Quaternary Pleisto cene V6007 Antioch 3 Contra Costa V58189 Mammalia Taxidea Quaternary Pleisto cene V6007 Antioch 3 Contra Costa V58190 Mammalia Equus Quaternary Pleisto cene V6007 Antioch 3 Contra Costa V58191 Mammalia Odocoileus Quaternary Pleisto cene V6007 Antioch 3 Contra Costa V58192 Mammalia unspecified Quaternary Pleisto cene V6007 Antioch 3 Contra Costa V58193 Mammalia unspecified Quaternary Pleisto cene V6007 Antioch 3 Contra Costa V58194 Mammalia unspecified Quaternary Pleisto cene V6007 Antioch 3 Contra Costa V58195 Mammalia Bison Quaternary Pleisto cene V6007 Antioch 3 Contra Costa V22575 Mammalia Mammut americanum Quaternary Pleisto cene V1604 Antioch General Contra Costa V23191 Mammalia Mammuthus Quaternary Pleisto cene V1604 Antioch General Contra Costa All but one of the recorded occurrences shown in Table 1 are fossilized mammalian species from the Pleistocene epoch of the Quaternary period found in clay and fluvial sand soil types. 3 2012-140 West Antioch Creek\Cultural Resources\Paleontology\West Antioch Creek Paleo Summary 2525 Warren Drive Rocklin, California 95677 Phone: (916) 782-9100 Fax: (916) 782-9134 Web: www.ecorpconsulting.com The Pleistocene, approximately 2.6 million to 11,700 years ago, included the most recent episodes of global cooling (UCMP 2013b). Much of the world's temperate zones were alternately covered by glaciers during cool periods and uncovered during the warmer interglacial periods when the glaciers retreated. The Pleistocene was characterized by the presence of distinctive large land mammals and birds including the mammoth, mastodons, longhorned bison, saber- toothed cats, and giant ground sloths. The remaining occurrence shown in Table 1 is a microfossil from the late Eocene epoch of the Tertiary period found in the Kreyenhagen Formation. The Eocene is from the Tertiary period and it lasted from about 55.8 to 33.9 million years ago (UCMP 2013c). The oldest known fossils of most of the modern orders of mammals appear in a brief period during the early Eocene. By the late Eocene, the lower temperatures and increased seasonality drove increased body size of mammals, and caused a shift towards increasingly open savanna-like vegetation, with a corresponding reduction in forests (UCMP 2013c). The recorded occurrences of paleontological resources from the Quaternary period are commensurate with the underlying geology of the project area. According to the 2010 Geologic Map of California (Gutierrez et al. 2010) and the Geologic Map of the Sacramento Quadrangle (Wagner et. al. 1981), the geologic feature that underlies the project area is classified as older alluvium, lake, playa, and terrace deposits with intertidal deposits at the north end of the project area from the Quaternary period. The Soil Resource Report for Contra Costa County, California (NRCS 2008) indicates that five soil types exist on-site: Brentwood clay loam, Joice muck, Marcuse clay, Rincon clay loam, and sycamore silty clay loam. The Brentwood clay loam, Rincon clay loam, and Sycamore silty clay loam are dominated by a mixture of clay loam, clay, and loamy sand to silty clay over a restrictive layer more than 80 inches (approximately seven feet) below the surface. The parent material for these three soil types is alluvium derived from sedimentary rock. Joice muck is dominated by muck over a restrictive layer of organic material more than 80 inches below the surface. Lastly, Marcuse clay is dominated by clay over a restrictive layer more than 80 inches below the surface. The parent material for Marcuse clay is alluvium derived from sandstone and shale. Ground disturbing activities associated with the proposed project include realigning the creek, installing culverts and retaining walls, and cutting new channel slopes. The creek, for project purposes, has been split into two adjacent reaches: A and B. Reach A involves conveyance configuration, installation of culverts/walls, and potential demolition or relocation of buildings. Five alternatives have been proposed for Reach A. All alternatives would use pre-cast concrete box culverts but they differ in the conveyance configuration of the reach. In addition, all alternatives would install four culverts 14 feet wide by seven feet high and could range from 100-700 feet in length. Reach B involves desilting, which includes the removal of accumulated sediment from the earthen channel. Approximately 3,000 linear feet of channel would be desilted. Multiple staging/stockpiling areas will be designated surrounding the project. The general construction activities involve trenching and excavating for cofferdam/sump/pump/pipeline installation and relocation, culvert and retaining wall construction, excavation for shaping of the channel, demolition of concrete channel/parking area/road, and grading and paving. The records search determined that there are fossil vertebrate localities located in proximity to the project area and the geology underlying the project area has high potential for containing 4 2012-140 West Antioch Creek\Cultural Resources\Paleontology\West Antioch Creek Paleo Summary 2525 Warren Drive Rocklin, California 95677 Phone: (916) 782-9100 Fax: (916) 782-9134 Web: www.ecorpconsulting.com nonrenewable paleontological resources. Monitoring is not required during desilting activities which include the removal of accumulated sediment within the existing earthen channel (Reach B). However, monitoring during all subsurface ground-disturbing activities that will impact undisturbed native soils shall be conducted by a qualified vertebrate paleontologist. The monitor shall be equipped to recover fossils and sediment samples during excavation, and shall have the authority to temporarily halt or divert equipment to allow for recovery of large or numerous fossils. If any fossils are recovered, they shall be analyzed to a point of identification and curated at an established accredited museum repository with permanent retrievable paleontologic storage. A technical report of findings shall be prepared with an appended itemized inventory of identified specimens and submitted with the recovered specimens to the curation facility. 5 2012-140 West Antioch Creek\Cultural Resources\Paleontology\West Antioch Creek Paleo Summary 2525 Warren Drive Rocklin, California 95677 Phone: (916) 782-9100 Fax: (916) 782-9134 Web: www.ecorpconsulting.com REFERENCES CITED: Anonymous n.d. Geologic Legend Electronic Document http://www.quake.ca.gov/gmaps/images/GMC_Explanation.pdf, accessed 16 October 2013. Gutierrez, C., Bryant, W., Saucedo, G., and C. Willis 2010 Geologic Map of California. California Geological Survey, Geologic Data Map No. 2. Compilation by C.W. Jennings (1977). Electronic document http://www.quake.ca.gov/gmaps/GMC/stategeologicmap.html, accessed 16 October 2013. United States Department of Agriculture (USDA), Natural Resources Conservation Service (NRCS) 2008 Soil Resource Report for Contra Costa County, California. 1:24,000 scale. Version 8, 22 July 2008. Electronic document http://websoilsurvey.nrcs.usda.gov, accessed 5 September 2013. Society of Vertebrate Paleontology (SVP) 2013 Assessment and Mitigation of Adverse Impacts to Nonrenewable Paleontologic Resources: Standard Guidelines, http://vertpaleo.org/The-Society/Statements-and- Guidelines/Conformable-Impact-Mitigation-Guidelines-Committee.aspx, accessed 23 August 2013. University of California Museum of Paleontology (UCMP) 2013a Specimen Search, http://ucmpdb.berkeley.edu/, accessed 16 October 2013. 2013b The Pleistocene Epoch. Electronic document, http://www.ucmp.berkeley.edu/quaternary/pleistocene.php, accessed 16 October 2013. 2013c The Eocene Epoch, Electronic document, http://www.ucmp.berkeley.edu/tertiary/eocene.php, accessed 18 October 2013. Wagner, D.L, C.W. Jennings, T.L. Bedrossian, and E.J. Bortugno 1981 Geologic Map of the Sacramento Quadrangle. California Geological Survey, Regional Geologic Map No. 1A, 1:250,000 scale. Electronic document http://www.quake.ca.gov/gmaps/RGM/sacramento/sacramento.html, accessed 16 October 2013. spec_id specnoucmp_collclassgenusspeciessubspeciesother_idtype_statusperiodepochloc_ID_numloc_namecounty_stdstate_prov_std country_stdcont_oceanpicaccessM2384223842 MPolythalameaFORAMINIFERA. Sorted Assemblage.TertiaryEoceneMF8077AntiochContra Costa County CaliforniaUnited States North AmericayesV3565135651 VMammaliaQuaternaryPleistoceneV4008Antioch 2Contra Costa County CaliforniaUnited States North AmericayesV3565235652 VMammaliaQuaternaryPleistoceneV4008Antioch 2Contra Costa County CaliforniaUnited States North AmericayesV3565335653 VMammaliaBisonQuaternaryPleistoceneV4008Antioch 2Contra Costa County CaliforniaUnited States North AmericayesV3565435654 VMammaliaQuaternaryPleistoceneV4008Antioch 2Contra Costa County CaliforniaUnited States North AmericayesV3565535655 VMammaliaGlossotheriumQuaternaryPleistoceneV4008Antioch 2Contra Costa County CaliforniaUnited States North AmericayesV153899153899 VMammaliaEquusQuaternaryPleistoceneV4008Antioch 2Contra Costa County CaliforniaUnited States North AmericayesV5818058180 VMammaliaEquuscaballusPUBLQuaternaryPleistoceneV6007Antioch 3Contra Costa County CaliforniaUnited States North AmericayesV5818958189 VMammaliaTaxideaQuaternaryPleistoceneV6007Antioch 3Contra Costa County CaliforniaUnited States North AmericayesV5819058190 VMammaliaEquusQuaternaryPleistoceneV6007Antioch 3Contra Costa County CaliforniaUnited States North AmericayesV5819158191 VMammaliaOdocoileusQuaternaryPleistoceneV6007Antioch 3Contra Costa County CaliforniaUnited States North AmericayesV5819258192 VMammaliaQuaternaryPleistoceneV6007Antioch 3Contra Costa County CaliforniaUnited States North AmericayesV5819358193 VMammaliaQuaternaryPleistoceneV6007Antioch 3Contra Costa County CaliforniaUnited States North AmericayesV5819458194 VMammaliaQuaternaryPleistoceneV6007Antioch 3Contra Costa County CaliforniaUnited States North AmericayesV5819558195 VMammaliaBisonQuaternaryPleistoceneV6007Antioch 3Contra Costa County CaliforniaUnited States North AmericayesV2257522575 VMammaliaMammutamericanumQuaternaryPleistoceneV1604Antioch General Contra Costa County CaliforniaUnited States North AmericayesV2319123191 VMammaliaMammuthusQuaternaryPleistoceneV1604Antioch General Contra Costa County CaliforniaUnited States North AmericayesV7699776997 VMammaliaMammutQuaternaryPleistoceneV6650Antioch DamContra Costa CountyCaliforniaUnited States North AmericayesM16556.316556.3 MPolythalameaFORAMINIFERATertiaryEoceneA66521.5 miles SW of Byron, on S side of highwayContra Costa County CaliforniaUnited States North AmericayesV3772737727 VMammaliaGlossotheriumQuaternaryPleistoceneV4404Alamo Creek 2 Contra Costa County CaliforniaUnited States North AmericayesV3772837728 VMammaliaSpermophilusQuaternaryPleistoceneV4404Alamo Creek 2 Contra Costa County CaliforniaUnited States North AmericayesV5755357553 VChondrichthyes PtychodusCretaceousLate Cretaceous V6113Alhambra Valley Rd Contra Costa County CaliforniaUnited States North AmericayesI1053210532 IGastropodaPolytropalamellosaHypotypeTertiaryOligoceneD118Arnold Industrial HighwayContra Costa County CaliforniaUnited States North AmericayesV3291532915 VMammaliaPUBLTertiaryMioceneV3614Arroyo Cayetano Contra Costa County CaliforniaUnited States North AmericayesI1193911939 IGastropodaXenophorazitteliHolotypeTertiary20BArroyo del Hambre Contra Costa County CaliforniaUnited States North AmericayesV4340743407 VMammaliaTertiaryMioceneV5330AvilaContra Costa County CaliforniaUnited States North AmericayesP11351135 PSphenopsida EquisetumTertiaryMiocene618 Bailey RoadContra Costa County CaliforniaUnited States North AmericayesP11421142 PLiliopsidaPoacitesTertiaryMiocene618 Bailey RoadContra Costa County CaliforniaUnited States North AmericayesP11431143 PLiliopsidaPoacitesTertiaryMiocene618 Bailey RoadContra Costa County CaliforniaUnited States North AmericayesP11491149 PMagnoliopsida SalixTertiaryMiocene618 Bailey RoadContra Costa County CaliforniaUnited States North AmericayesP12361236 PMagnoliopsida PopulusbalsamoidesplesiotypeTertiaryMiocene618 Bailey RoadContra Costa County CaliforniaUnited States North AmericayesP12371237 PMagnoliopsida PopulusbalsamoidesplesiotypeTertiaryMiocene618Bailey RoadContra Costa County CaliforniaUnited States North AmericayesP12381238 PMagnoliopsida PopulusemersonicotypeTertiaryMiocene618 Bailey RoadContra Costa County CaliforniaUnited States North AmericayesP12421242 PMagnoliopsida MyricadiformeplesiotypeTertiaryMiocene618 Bailey RoadContra Costa County CaliforniaUnited States North AmericayesP12431243 PMagnoliopsida JuglansoregonianaTertiaryMiocene618 Bailey RoadContra Costa County CaliforniaUnited States North AmericayesP12571257 PMagnoliopsida PerseaprincepsTertiaryMiocene618 Bailey RoadContra Costa County CaliforniaUnited States North AmericayesP12581258 PMagnoliopsida PerseaprincepsTertiaryMiocene618 Bailey RoadContra Costa County CaliforniaUnited States North AmericayesP12591259 PMagnoliopsida Umbellularia oregonensisTertiaryMiocene618 Bailey RoadContra Costa County CaliforniaUnited States North AmericayesP12601260 PMagnoliopsida Umbellularia oregonensisTertiaryMiocene618 Bailey RoadContra Costa County CaliforniaUnited States North AmericayesP12631263 PMagnoliopsida PlatanusdissectaTertiaryMiocene618 Bailey RoadContra Costa CountyCaliforniaUnited StatesNorth AmericayesP12641264 PMagnoliopsida PrunuschaneyiparatypeTertiaryMiocene618 Bailey RoadContra Costa County CaliforniaUnited States North AmericayesP12661266 PMagnoliopsida PrunuschaneyicotypeTertiaryMiocene618 Bailey RoadContra Costa County CaliforniaUnited States North AmericayesP12711271 PMagnoliopsida PopulusbalsamoidesTertiaryMiocene618 Bailey RoadContra Costa County CaliforniaUnited States North AmericayesP12771277 PMagnoliopsidaTertiaryMiocene618 Bailey RoadContra Costa County CaliforniaUnited States North AmericayesV50025002 VMammaliaEucastorleconteiTYPETertiaryMiocene‐1082 Bald Peak NContra Costa County CaliforniaUnited States North America 2222 0904 0041 0011 yesV1042010420 VMammaliaMesohippusTertiaryMioceneV67102Bald Peak NContra Costa County CaliforniaUnited States North AmericayesV1982619826 VMammaliaProsthennopsFIGTertiaryMiocene‐1082 Bald Peak NContra Costa County CaliforniaUnited States North AmericayesV1982719827 VMammaliaLepusPUBLTertiaryMiocene‐1082Bald Peak NContra Costa County CaliforniaUnited States North AmericayesV1982819828 VReptiliaPUBLTertiaryMiocene‐1082 Bald Peak NContra Costa County CaliforniaUnited States North AmericayesV3057230572 VMammaliaEucastorleconteiFIGTertiaryMiocene‐1082 Bald Peak NContra Costa County CaliforniaUnited States North AmericayesV3157431574 VMammaliaEucastorleconteiTYPETertiaryMiocene‐1082 Bald Peak NContra Costa County CaliforniaUnited States North AmericayesV1124211242 VMammaliaMammutamericanumQuaternaryPleistocene‐1076 Bay Shore S.P. Tunnel Contra Costa County CaliforniaUnited States North AmericayesI1113111131 IBivalviaCyathodonta weaveriHolotypeTertiaryOligocene14‐Bear ValleyContra Costa County CaliforniaUnited States North AmericayesI1113411134 IBivalviaAntigonaundosaHolotypeTertiaryOligocene14‐Bear ValleyContra Costa CountyCaliforniaUnited StatesNorth AmericayesI1113511135 IBivalviaAntigonaneglectaHolotypeTertiaryOligocene14‐Bear ValleyContra Costa County CaliforniaUnited States North AmericayesI1113611136 IBivalviaAntigonaundosaParatypeTertiaryOligocene14‐Bear ValleyContra Costa County CaliforniaUnited States North AmericayesI1114411144 IBivalviaAntigonamathewsoniiHypotypeTertiaryOligocene14‐Bear ValleyContra Costa County CaliforniaUnited States North AmericayesI1114611146 IBivalviaDosiniawhitneyiHypotypeTertiaryOligocene14‐Bear ValleyContra Costa County CaliforniaUnited States North AmericayesI1115611156 IBivalviaMacrocallista 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IGastropodaOlivellaquadriplicataParatypeTertiaryOligocene14‐Bear ValleyContra Costa County CaliforniaUnited States North AmericayesI1128311283 IGastropodaAgasomagravidumHypotypeTertiaryOligocene14‐Bear ValleyContra Costa County CaliforniaUnited States North AmericayesI1158511585 IBivalviaPectencierboensisHolotypeTertiaryOligocene14‐Bear ValleyContra Costa County CaliforniaUnited States North AmericayesM2188521885 MPolythalamea BagginacalifornicaFORAMINIFERATertiaryMioceneMF7264Bear‐Pinole Creek DivideContra Costa County CaliforniaUnited States North AmericayesV8263682636 VChondrichthyes CarcharodonTertiaryMioceneV68104BellamyContra Costa County CaliforniaUnited States North AmericayesV3287032870 VMammaliaTicholeptusPUBLTertiaryMioceneV3603BellshireContra Costa County CaliforniaUnited States North AmericayesV131828131828 VMammaliaAntilocaprapacificaTYPEQuaternaryPleistoceneV87047Big BreakContra Costa County CaliforniaUnited States North AmericayesV131829131829 VMammaliaAntilocapraFIGQuaternaryPleistoceneV87047Big BreakContra Costa County CaliforniaUnited States North AmericayesV3286932869 VMammaliaPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3304933049 VMammaliaEucastorleconteiFIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3305033050 VMammaliaEpicyondiabloensisPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3305133051 VMammaliaHipparionforceiTYPETertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited StatesNorth America0000 0000 1002 0163 yesV3305233052 VMammaliaHipparionmohavensePUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3305333053 VMammaliaGomphotheriumPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3305433054 VMammaliaTicholeptusmajorPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3305533055 VMammaliaProcamelusPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3305633056 VMammaliaCapromeryxPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3309933099 VMammaliaEucastorleconteiFIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3347533475 VMammaliaAelurodontaxoidesFIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America0000 0000 0702 0823 yesV3347633476 VMammaliaBorophaguslittoralisTYPETertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 1002 0174 yesV3347733477 VMammaliaBorophaguslittoralisFIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3347833478 VMammaliaAelurodontaxoidesFIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0511 0626 yesV3348433484 VMammaliaEpicyondiabloensisPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0702 0775 yesV3349233492 VMammaliaBorophaguslittoralisFIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3349333493 VMammaliaBorophaguslittoralisFIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited StatesNorth AmericayesV3349433494VMammaliaBorophaguslittoralisFIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3353033530 VMammaliaPliohippusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3353133531 VMammaliaPliohippusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3353233532 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3353333533 VMammaliaHipparionforceiFIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3353433534 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3353533535 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3353633536 VMammaliaHipparionTertiaryMioceneV3310Black Hawk RanchContra Costa CountyCaliforniaUnited States North AmericayesV3353733537 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3353833538 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3353933539 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3354033540 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3354133541 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3354233542 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3354333543 VMammaliaHipparionTertiaryMioceneV3310Black Hawk RanchContra Costa CountyCaliforniaUnited States North AmericayesV3354433544 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3354533545 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3354633546 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North Americayes V3354733547 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3354833548 VMammaliaGomphotherium cingulatumPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3354933549 VMammaliaGomphotherium simpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3355033550 VMammaliaGomphotherium simpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3355133551 VMammaliaGomphotherium simpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3355233552 VMammaliaGomphotherium cingulatumPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0511 0638 yesV3355333553 VMammaliaGomphotherium cingulatumPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3355433554 VMammaliaGomphotherium simpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3355533555 VMammaliaGomphotherium simpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3355633556 VMammaliaGomphotherium simpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3355733557 VMammaliaGomphotherium simpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3355833558 VMammaliaGomphotherium simpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3355933559 VMammaliaGomphotherium simpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3356033560 VMammaliaGomphotherium simpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3357033570 VMammaliaGomphotherium simpsoniTertiaryMioceneV3310Black Hawk RanchContra Costa CountyCaliforniaUnited States North AmericayesV3357833578 VMammaliaGomphotherium simpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3357933579 VMammaliaGomphotherium simpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3358033580 VMammaliaGomphotherium simpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3369633696 VMammaliaEucastorleconteiTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3369733697 VMammaliaEucastorleconteiTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3369833698 VMammaliaEucastorleconteiTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3369933699 VMammaliaEucastorleconteiTertiaryMioceneV3310Black Hawk Ranch Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV3370033700 VMammaliaEucastorleconteiTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3370133701 VMammaliaEucastorleconteiTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3370233702 VMammaliaHypolagusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3370333703 VMammaliaUrocyonTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3370433704 VAvesTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3370533705 VMammaliaBassariscusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3370633706 VMammaliaBassariscusparvusFIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited StatesNorth America0000 0000 0702 0777 yesV3370733707 VMammaliaUrocyonFIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3370833708 VMammaliaLeptarctusFIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3370933709 VMammaliaBassariscusPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3371033710 VMammaliaEpicyondiabloensisTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3371133711 VMammaliaBorophaguslittoralisFIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0511 1849 yesV3371233712 VMammaliaEpicyondiabloensisTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3371333713 VMammaliaAelurodonTertiaryMioceneV3310Black Hawk RanchContra Costa CountyCaliforniaUnited States North AmericayesV3371433714 VMammaliaFissipedaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3371533715 VMammaliaMegatylopusPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3371633716 VMammaliaMachairodontinaeTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3371733717 VMammaliaBarbourofelisFIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0702 0829 yesV3371833718 VMammaliaMachairodontinae FIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3371933719 VMammaliaMachairodontinaeTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3372033720VMammaliaEpicyondiabloensisTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0702 0833 yesV3372133721 VMammaliaMachairodontinaeTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3372233722 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3372333723 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3372433724 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3372533725 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3372633726 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited StatesNorth AmericayesV3372733727VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3372833728 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3372933729 VReptiliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3373033730 VAvesTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3373133731 VAvesTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3373233732 VAvesTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3373333733 VAvesTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3373433734 VMammaliaEpicyondiabloensisTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3373533735 VMammaliaEpicyondiabloensisTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3373633736 VMammaliaProsthennopsTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3373733737 VMammaliaWoodburnehyus grenaderaeFIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3373833738 VMammaliaWoodburnehyus grenaderaePUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3373933739 VMammaliaWoodburnehyus grenaderaePUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3374033740 VMammaliaFissipedaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3374133741 VMammaliaTicholeptusmajorPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa CountyCaliforniaUnited States North AmericayesV3374233742 VMammaliaTicholeptusmajorPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3374333743 VMammaliaTicholeptusmajorTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3374433744 VMammaliaTicholeptusmajorTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3374533745 VMammaliaProcamelusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0411 1705 yesV3374633746 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0702 0780 yesV3374733747 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3374833748VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3374933749 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3375033750 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3375133751 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3375233752 VAvesTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3375333753 VMammaliaProcamelusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3375433754 VMammaliaProcamelusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3375533755 VMammaliaProcamelusTertiaryMioceneV3310Black Hawk RanchContra Costa CountyCaliforniaUnited States North America 0000 0000 0702 0013 yesV3375633756 VMammaliaProcamelusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3375733757 VMammaliaProcamelusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3375833758 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3375933759 VMammaliaMerycodusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3376033760 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3376133761 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3376233762VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3376333763 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3376433764 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3376533765 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3376633766 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3376733767 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3376833768 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3376933769 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk RanchContra Costa CountyCaliforniaUnited States North AmericayesV3377033770 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3377133771 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3377233772 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3377333773 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3377433774 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3377533775 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3377633776 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk RanchContra Costa CountyCaliforniaUnited States North AmericayesV3377733777 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3377833778 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3377933779 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3378033780 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3378133781 VMammaliaGomphotherium productumsimpsoniPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3378233782 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3378333783 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited StatesNorth AmericayesV3378433784VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3378533785 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3378633786 VMammaliaGomphotherium productumsimpsoniPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North Americayes V3378733787 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3378833788 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3378933789 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3379033790 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3379133791 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3379233792 VMammaliaGomphotherium productumsimpsoniPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3379333793 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3379433794 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3379533795 VMammaliaGomphotheriumproductumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3379633796 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3379733797 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3379833798 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3379933799 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3380033800 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3380133801 VMammaliaGomphotherium productumsimpsoniPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3380233802 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa CountyCaliforniaUnited States North AmericayesV3380333803 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3380433804 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3380533805 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3380633806 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3380733807 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3380833808 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3380933809 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3381033810 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa CountyCaliforniaUnited States North AmericayesV3381133811 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3381233812 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3381333813 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3381433814 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3381533815 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3381633816 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3381733817 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3381833818 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk RanchContra Costa CountyCaliforniaUnited States North AmericayesV3381933819 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3382033820 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3382133821 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3382233822 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3382333823 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3382433824 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3382533825 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3382633826 VAvesTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3382733827 VAvesTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3382833828 VAvesTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3382933829 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3383033830 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3408634086 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3408734087 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3408834088 VMammaliaHipparionTertiaryMioceneV3310Black Hawk RanchContra Costa CountyCaliforniaUnited States North AmericayesV3408934089 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3409034090 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3409134091 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3409234092 VMammaliaHipparionforceiFIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3409334093 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3409434094 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3409534095 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV3409634096 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3409734097 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3409834098 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3409934099 VMammaliaPliohippusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3410034100 VMammaliaHipparionforceiFIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3410134101 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3410234102 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited StatesNorth AmericayesV3410334103VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3410434104 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3410534105 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3410634106 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3410734107 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3410834108 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3410934109 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3411034110 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3411134111 VMammaliaPliohippusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3450134501 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3450234502 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3450334503 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3450434504 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3450534505 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3450634506 VMammaliaHipparionTertiaryMioceneV3310Black Hawk RanchContra Costa CountyCaliforniaUnited States North AmericayesV3450734507 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3450834508 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3450934509 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3451034510 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3451134511 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0702 0086 yesV3451234512 VMammaliaNimravidesthinobatesFIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0413 0726yesV3451334513VMammaliaNimravidesthinobatesTYPETertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 2222 0904 0046 0011 yesV3451434514 VMammaliaNimravidesthinobatesPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0413 0727 yesV3451534515 VMammaliaBorophaguslittoralisFIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0413 0729 yesV3459434594 VMammaliaPliohippusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3459534595 VMammaliaPliohippusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3459634596 VMammaliaPliohippusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited StatesNorth AmericayesV3459734597VMammaliaDinohippusleardiPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3459834598 VMammaliaHipparionforceiTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3460234602 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3460334603 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3460434604 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3460534605 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3460634606 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3460734607 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3460934609 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3461034610 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3461134611 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3461234612 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3461334613 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3461434614 VMammaliaOtospermophilusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3461534615 VMammaliaMustelinaeFIGTertiaryMioceneV3310Black Hawk RanchContra Costa CountyCaliforniaUnited States North AmericayesV3461634616 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3461734617 VMammaliaFissipedaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3461834618 VMammaliaVulpesvaferFIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3462034620 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3462134621 VMammaliaPliohippusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3462234622 VMammaliaPliohippusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North Americayes V3462334623 VMammaliaBorophaguslittoralisFIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3462434624 VMammaliaProcamelusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3462534625 VMammaliaProcamelusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0511 0628 yesV3462634626 VMammaliaProcamelusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3462734627 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3462834628 VMammaliaGomphotheriumTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3462934629 VMammaliaGomphotheriumTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3463034630VMammaliaGomphotheriumTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3463134631 VMammaliaGomphotheriumTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3463234632 VMammaliaGomphotheriumTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3463334633 VMammaliaGomphotheriumTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3463534635 VMammaliaGomphotheriumTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3463634636 VMammaliaGomphotheriumTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0313 0422 yesV3463734637 VMammaliaGomphotheriumTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited StatesNorth AmericayesV3463834638VMammaliaWoodburnehyus grenaderaeFIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0702 0785 yesV3463934639 VMammaliaProsthennopsPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0313 0425 yesV3464034640 VMammaliaBorophaguslittoralisFIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0413 0730 yesV3464134641 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3464234642 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3464334643 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited StatesNorth America0000 0000 0511 0631 yesV3464434644 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0313 0442 yesV3464534645 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0511 0627 yesV3464634646 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0511 0629 yesV3464734647 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0313 0447 yesV3464834648 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3464934649 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0313 0449 yesV3465034650 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0313 0452 yesV3465134651 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0313 0454 yesV3465234652 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0313 0459 yesV3465334653 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0313 0466yesV3465434654 VMammaliaEucastorTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0313 0472 yesV3465534655 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0313 0474 yesV3465634656 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3465734657 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3465834658 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3465934659 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0313 0476yesV3466034660VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0313 0478 yesV3466134661 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0313 0480 yesV3466234662 VMammaliaPliohippusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0313 0482 yesV3466334663 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0313 0484 yesV3466434664 VMammaliaPliohippusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0313 0487yesV3466534665 VMammaliaProsthennopsPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3466634666 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0702 0787 yesV3466734667 VMammaliaEucastorTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0313 0489 yesV3467134671 VMammaliaProsthennopsTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0313 0492 yesV3467234672 VMammaliaProsthennopsPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3467334673 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3467434674VMammaliaTicholeptusmajorTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3467534675 VMammaliaTicholeptusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3467634676 VMammaliaEucastorTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3467734677 VMammaliaEucastorTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3467834678 VMammaliaMerycodontinaeTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3467934679 VMammaliaEpicyondiabloensisTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3468034680 VMammaliaEpicyondiabloensisTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3468134681 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk RanchContra Costa CountyCaliforniaUnited States North AmericayesV3468234682 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3468434684 VMammaliaFissipedaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3468534685 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3468634686 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3468834688 VMammaliaEucastorTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3468934689 VMammaliaEucastorleconteiTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3469034690 VMammaliaAelurodonTertiaryMioceneV3310Black Hawk Ranch Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV3469334693 VMammaliaAelurodontaxoidesPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3469434694 VMammaliaAelurodontaxoidesPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3469534695 VMammaliaBorophaguslittoralisFIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3469634696 VMammaliaAelurodonTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3469734697 VMammaliaAelurodonTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3469834698 VMammaliaAelurodonTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3469934699 VMammaliaAelurodonTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3470034700 VMammaliaAelurodonTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3470134701 VMammaliaEpicyondiabloensisTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3470234702 VMammaliaEpicyondiabloensisTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3470334703 VMammaliaPseudaelurusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3470434704 VMammaliaEpicyondiabloensisTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3470534705 VAvesTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3470634706 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3470734707 VMammaliaProsthennopsTertiaryMioceneV3310Black Hawk RanchContra Costa CountyCaliforniaUnited States North AmericayesV3470834708 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3470934709 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3471034710 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3471134711 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3471234712 VAvesTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3471334713 VAvesTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3471434714 VAvesTertiaryMioceneV3310Black Hawk Ranch Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV3471534715 VAvesGrusconfertaTYPETertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0702 0019 yesV3471634716 VMammaliaBorophaguslittoralisPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3471734717 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3471834718 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0702 0791 yesV3472334723 VMammaliaProcamelusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3472434724 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3472534725 VMammaliaTertiaryMioceneV3310Black Hawk RanchContra Costa CountyCaliforniaUnited States North AmericayesV3472634726 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3472734727 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3472834728 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3472934729 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3473034730 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3473134731 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3473234732 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited StatesNorth AmericayesV3473334733VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3473434734 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3473534735 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3473634736 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3473734737 VMammaliaNimravidesthinobatesPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0702 0848 yesV3473834738 VMammaliaPliohippusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3473934739 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV3474034740 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3475134751 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0313 0724 yesV3475234752 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3475334753 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North Americayes V3475434754 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3475534755 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3475634756 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3475734757 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3475834758 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3475934759 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3476034760 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3479134791 VMammaliaTertiaryMioceneV3310Black Hawk RanchContra Costa CountyCaliforniaUnited States North AmericayesV3479234792 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3479334793 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3479434794 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3479534795 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3479634796 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3479734797 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3479834798 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV3479934799 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3480034800 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3481134811 VMammaliaProcamelusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3481234812 VMammaliaProsthennopsTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3481334813 VMammaliaProsthennopsTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3481434814 VMammaliaMerycodusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3481534815 VMammaliaMerycodontinaeTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited StatesNorth AmericayesV3481634816VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3481734817 VMammaliaEpicyondiabloensisTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3481834818 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3481934819 VMammaliaFissipedaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3482034820 VMammaliaFissipedaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3482134821 VMammaliaFissipedaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3482234822 VMammaliaFissipedaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0702 0850yesV3482334823 VMammaliaFissipedaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3482434824 VMammaliaTicholeptusmajorTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3482534825 VMammaliaMerycodusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3482634826 VMammaliaFissipedaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3482734827 VMammaliaFissipedaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3482834828 VMammaliaLeptarctusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3482934829 VMammaliaLeptarctusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited StatesNorth AmericayesV3483034830VMammaliaEutheriaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3483134831 VMammaliaEucastorleconteiTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3483234832 VMammaliaFissipedaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3483334833 VMammaliaEutheriaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3483434834 VMammaliaEutheriaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3483534835 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3483634836 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3483734837 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3483834838 VMammaliaGomphotherium cingulatumsimpsoniPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3550335503 VMammaliaPliaucheniaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3550435504 VMammaliaPliaucheniamagnifontisTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3550535505 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3550635506 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3550735507 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3550835508 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk RanchContra Costa CountyCaliforniaUnited States North AmericayesV3550935509 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3551035510 VMammaliaProcamelusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3551135511 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3575535755 VMammaliaGomphotheriumTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3764537645 VMammaliaOsteoborusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3764637646 VMammaliaOsteoborusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3764737647 VMammaliaOsteoborusTertiaryMioceneV3310Black Hawk Ranch Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV3764837648 VMammaliaOsteoborusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3764937649 VMammaliaGomphotheriumTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3765037650 VMammaliaGomphotheriumTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3765137651 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3765237652 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3765337653 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3765437654 VMammaliaEquusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited StatesNorth AmericayesV3765537655VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3765637656 VMammaliaProsthennopsTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3765737657 VMammaliaMerycodusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3765837658 VMammaliaMerycodusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3765937659 VMammaliaMerycodusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3786137861 VMammaliaHipparionforceiPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3805138051 VMammaliaGomphotheriumTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3815638156 VMammaliaAelurodonTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3815738157 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3815838158 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3815938159 VMammaliaGomphotheriumTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3816938169 VMammaliaBorophaguslittoralisFIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0702 0793 yesV3933839338 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3933939339 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3934039340 VMammaliaGomphotheriumproductumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3934139341 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3934239342 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3934339343 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3934439344 VMammaliaGomphotherium productumsimpsoniPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3934539345 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3934639346 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3934739347 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited StatesNorth AmericayesV3934839348VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3934939349 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3935039350 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3935139351 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3935239352 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3935339353 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3935439354 VMammaliaGomphotherium cingulatumsimpsoniPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3935539355 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa CountyCaliforniaUnited States North AmericayesV3935639356 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3935739357 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3935839358 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3935939359 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3936039360 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3936739367 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3936839368 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3936939369 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk RanchContra Costa CountyCaliforniaUnited States North AmericayesV3937039370 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3937939379 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3938039380 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3938139381 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3938239382 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3938339383 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North Americayes V3938539385 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3938639386 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0511 0625 yesV3938739387 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3939239392 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3939339393 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3939439394 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3939539395 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3939639396 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3939739397 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3939839398 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3939939399 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3940039400 VMammaliaMerycodusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3940239402 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3940339403 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3940439404 VMammaliaBorophaguslittoralisPUBLTertiaryMioceneV3310Black Hawk RanchContra Costa CountyCaliforniaUnited States North AmericayesV3940539405 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3940639406 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3940739407 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3940839408 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3940939409 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3941139411 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3941239412 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV3941339413 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3941439414 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3941539415 VMammaliaProcamelusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3941639416 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3941739417 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3941839418 VMammaliaProcamelusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3941939419 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3942039420 VMammaliaGomphotheriumproductumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3942139421 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3942239422 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3942439424 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3942539425 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3942639426 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3942739427 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3942839428 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa CountyCaliforniaUnited States North AmericayesV3942939429 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3943139431 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3943239432 VMammaliaPliohippusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3943339433 VMammaliaMerycodusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3946839468 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3946939469 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3947039470 VMammaliaWoodburnehyus grenaderaeFIGTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America0000 0000 0702 0799 yesV3947239472 VMammaliaEpicyondiabloensisTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3949139491 VMammaliaBorophaguslittoralisPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3949239492 VMammaliaEpicyondiabloensisTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3949339493 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Contra Costa County CaliforniaUnited States North America 0000 0000 0702 0855yesV4530845308VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4530945309 VMammaliaGomphotheriumTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4531045310 VMammaliaEucastorTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4531145311 VMammaliaAelurodonTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4531245312 VMammaliaProsthennopsTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4531345313 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4532145321 VMammaliaHipparionTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4532245322 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North AmericayesV4725647256 VMammaliaAelurodontaxoidesPUBLTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0511 0639 yesV4725747257 VMammaliaEpicyondiabloensisTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4725847258 VMammaliaFissipedaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4725947259 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4726047260 VMammaliaFissipedaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4727147271 VMammaliaHipparionforceiTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4727247272 VMammaliaHipparionforceiTertiaryMioceneV3310Black Hawk RanchContra Costa CountyCaliforniaUnited States North AmericayesV4727347273 VMammaliaHipparionforceiTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4727447274 VMammaliaHipparionforceiTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4727547275 VMammaliaHipparionforceiTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4727647276 VMammaliaHipparionforceiTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4727747277 VMammaliaHipparionforceiTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4727847278 VMammaliaHipparionforceiTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4727947279 VMammaliaNannippusforceiTertiaryMioceneV3310Black Hawk RanchContra Costa CountyCaliforniaUnited States North AmericayesV4728047280 VMammaliaNannippusforceiTertiaryMioceneV3310Black Hawk Ranch 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VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4732947329 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4733047330 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4735147351 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4735247352 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4735347353 VMammaliaProtolabisTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4735447354 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4735547355 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4735647356 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North AmericayesV4974749747 VMammaliaGomphotheriumTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4974849748 VMammaliaGomphotheriumTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4974949749 VMammaliaGomphotheriumTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4975049750 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4975149751 VMammaliaEucastorTertiaryMioceneV3310Black Hawk RanchContra Costa CountyCaliforniaUnited States North AmericayesV4975249752 VMammaliaPliohippusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4975349753 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV4975449754 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County 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CaliforniaUnited States North AmericayesV9562295622 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV9562395623 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV9562495624 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV9562595625 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV9562695626 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk RanchContra Costa CountyCaliforniaUnited States North AmericayesV9562795627 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV9562895628 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV9562995629 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV9563095630 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV9563195631 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV9597795977 VMammaliaCanisTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV9597895978 VMammaliaLeptarctinaeTertiaryMioceneV3310Black Hawk Ranch Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV9597995979 VMammaliaLeptarctinaeTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV9598095980 VMammaliaMachairodontinaeTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV9598195981 VMammaliaMachairodontinaeTertiaryMioceneV3310Black Hawk Ranch Contra Costa County 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Contra Costa County CaliforniaUnited States North AmericayesV131670131670 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV131671131671 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV131672131672 VMammaliaCapromeryxTertiaryMioceneV3310Black Hawk Ranch Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV131673131673 VMammaliaMegatylopusTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV132042132042 VReptiliaClemmysmarmorataTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV132065132065 VReptiliaGeocheloneTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV134812134812 VMammaliaGomphotherium productumsimpsoniTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States 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North AmericayesV153858153858 VMammaliaHipparionforceiTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV153859153859 VMammaliaHipparionforceiTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV153860153860 VMammaliaHipparionforceiTertiaryMioceneV3310Black Hawk Ranch Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV192610192610 VMammaliaAelurodontaxoidesTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV192633192633 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV192634192634 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV192635192635 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV192636192636 VMammaliaBorophaguslittoralisTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV192637192637 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV192638192638 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV192639192639 VMammaliaTertiaryMioceneV3310Black Hawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3356133561 VMammaliaTertiaryMioceneV3724Black Hawk Ranch 4 Contra Costa County CaliforniaUnited States North AmericayesV3356233562 VMammaliaGomphotherium simpsoniTertiaryMioceneV3724Black Hawk Ranch 4 Contra Costa County CaliforniaUnited States North AmericayesI1155711557 IBivalviaMacomaandersoniHolotypeTertiaryEocene1449‐Black HillsContra Costa County CaliforniaUnited States North AmericayesP17361736 PMagnoliopsida PopuluswashoensisplesiotypeTertiaryMioceneP3723Blackhawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0602 0419 yesP17371737 PMagnoliopsida PopuluswashoensisplesiotypeTertiaryMioceneP3723Blackhawk Ranch Contra Costa County CaliforniaUnited States North AmericayesP17381738 PMagnoliopsida PopuluswashoensisTertiaryMioceneP3723Blackhawk Ranch Contra Costa County CaliforniaUnited StatesNorth Americayes P17391739 PMagnoliopsida SalixhesperiaplesiotypeTertiaryMioceneP3723Blackhawk Ranch Contra Costa County CaliforniaUnited States North AmericayesP17401740 PMagnoliopsida SalixhesperiaTertiaryMioceneP3723Blackhawk Ranch Contra Costa County CaliforniaUnited States North AmericayesP17411741 PMagnoliopsida QuercusconvexaTertiaryMioceneP3723Blackhawk Ranch Contra Costa County CaliforniaUnited States North AmericayesP17421742 PMagnoliopsida QuercuslakevillensisTertiaryMioceneP3723Blackhawk Ranch Contra Costa County CaliforniaUnited States North AmericayesP17431743 PMagnoliopsida UlmuscalifornicaplesiotypeTertiaryMioceneP3723Blackhawk Ranch Contra Costa County CaliforniaUnited States North AmericayesP17441744 PMagnoliopsida UlmuscalifornicaTertiaryMioceneP3723Blackhawk Ranch Contra Costa County CaliforniaUnited States North AmericayesP17451745 PMagnoliopsida UlmuscalifornicaTertiaryMioceneP3723Blackhawk Ranch Contra Costa County CaliforniaUnited States North AmericayesP17461746 PMagnoliopsida UlmuscalifornicaplesiotypeTertiaryMioceneP3723Blackhawk Ranch Contra Costa County CaliforniaUnited States North America 0000 0000 0602 0420 yesP17471747 PMagnoliopsida UlmuscalifornicaTertiaryMioceneP3723Blackhawk RanchContra Costa CountyCaliforniaUnited States North AmericayesP17481748 PMagnoliopsida UlmuscalifornicaTertiaryMioceneP3723Blackhawk Ranch Contra Costa County CaliforniaUnited States North AmericayesP17491749 PMagnoliopsida UlmuscalifornicaTertiaryMioceneP3723Blackhawk Ranch Contra Costa County CaliforniaUnited States North AmericayesP17501750 PMagnoliopsida Cercocarpus cuneatusTertiaryMioceneP3723Blackhawk Ranch Contra Costa County CaliforniaUnited States North AmericayesP17511751 PMagnoliopsida PlatanusdissectaplesiotypeTertiaryMioceneP3723Blackhawk Ranch Contra Costa County CaliforniaUnited States North AmericayesP17521752 PMagnoliopsida PlatanusdissectaplesiotypeTertiaryMioceneP3723Blackhawk Ranch Contra Costa County CaliforniaUnited States North AmericayesP17531753 PMagnoliopsida PlatanusdissectaTertiaryMioceneP3723Blackhawk Ranch Contra Costa County CaliforniaUnited States North AmericayesP17541754 PMagnoliopsida RhusmoragensisTertiaryMioceneP3723Blackhawk Ranch Contra Costa County CaliforniaUnited States North AmericayesV3459934599 VMammaliaHipparionTertiaryMioceneV3925Blackhawk Ranch 3 Contra Costa County CaliforniaUnited StatesNorth AmericayesV3471934719VMammaliaNannippusTertiaryMioceneV3925Blackhawk Ranch 3 Contra Costa County CaliforniaUnited States North AmericayesV3472034720 VMammaliaHipparionTertiaryMioceneV3925Blackhawk Ranch 3 Contra Costa County CaliforniaUnited States North AmericayesP198901198901 PMagnoliopsida MagnoliaTertiaryMiocenePA300Blackhawk Ranch HillsideContra Costa County CaliforniaUnited States North America 0000 0000 0702 0572 yesP198902198902 PMagnoliopsida AlnuscorrallinaTertiaryMiocenePA300Blackhawk Ranch HillsideContra Costa County CaliforniaUnited States North America 0000 0000 0702 0573 yesP198903198903 PMagnoliopsida ArctostaphylosTertiaryMiocenePA300Blackhawk Ranch HillsideContra Costa County CaliforniaUnited States North AmericayesP198904198904 PMagnoliopsida ArctostaphylosTertiaryMiocenePA300Blackhawk Ranch HillsideContra Costa County CaliforniaUnited States North America 0000 0000 0702 0574 yesP198905198905 PMagnoliopsida UlmusTertiaryMiocenePA300Blackhawk Ranch HillsideContra Costa County CaliforniaUnited States North America 0000 0000 0702 0575 yesP198906198906 PMagnoliopsida UlmusTertiaryMiocenePA300Blackhawk Ranch HillsideContra Costa County CaliforniaUnited States North America 0000 0000 0702 0576 yesP198907198907 PMagnoliopsida UlmusamericanaTertiaryMiocenePA300Blackhawk Ranch HillsideContra Costa County CaliforniaUnited States North AmericayesP198908198908 PMagnoliopsida BetulaluteaTertiaryMiocenePA300Blackhawk Ranch HillsideContra Costa County CaliforniaUnited States North America 0000 0000 0702 0578 yesP198909198909 PMagnoliopsida BetulaluteaTertiaryMiocenePA300Blackhawk Ranch HillsideContra Costa County CaliforniaUnited States North America 0000 0000 0702 0579 yesP198910198910 PMagnoliopsida AlnuscorrallinaTertiaryMiocenePA300Blackhawk Ranch HillsideContra Costa County CaliforniaUnited States North America 0000 0000 0702 0580 yesP198911198911 PMagnoliopsida AlnuscorrallinaTertiaryMiocenePA300Blackhawk Ranch HillsideContra Costa County CaliforniaUnited States North America 0000 0000 0702 0581 yesP198912198912 PMagnoliopsida AlnuscorrallinaTertiaryMiocenePA300Blackhawk Ranch HillsideContra Costa County CaliforniaUnited States North America 0000 0000 0702 0582 yesP198913198913 PMagnoliopsida UlmusTertiaryMiocenePA300Blackhawk Ranch HillsideContra Costa County CaliforniaUnited States North AmericayesP198914198914 PMagnoliopsida MagnoliaTertiaryMiocenePA300Blackhawk Ranch HillsideContra Costa County CaliforniaUnited States North America 0000 0000 0702 0583 yesP198915198915 PMagnoliopsida MagnoliaTertiaryMiocenePA300Blackhawk Ranch HillsideContra Costa County CaliforniaUnited States North America 0000 0000 0702 0584 yesP198916198916 PMagnoliopsida PopulusTertiaryMiocenePA300Blackhawk Ranch HillsideContra Costa County CaliforniaUnited States North America 0000 0000 0702 0585 yesP198917198917 PMagnoliopsida PlatanusTertiaryMiocenePA300Blackhawk Ranch HillsideContra Costa County CaliforniaUnited States North AmericayesP198920198920 PMagnoliopsida UmbellulariaTertiaryMiocenePA300Blackhawk Ranch HillsideContra Costa County CaliforniaUnited States North America 0000 0000 0702 0587 yesP198921198921 PMagnoliopsida UmbellulariaTertiaryMiocenePA300Blackhawk Ranch HillsideContra Costa County CaliforniaUnited States North America 0000 0000 0702 0589 yesP198922198922 PMagnoliopsida UmbellulariaTertiaryMiocenePA300Blackhawk Ranch HillsideContra Costa County CaliforniaUnited States North America 0000 0000 0702 0590 yesP198923198923 PMagnoliopsida UmbellulariaTertiaryMiocenePA300Blackhawk Ranch HillsideContra Costa County CaliforniaUnited States North America 0000 0000 0702 0591 yesP198924198924 PMagnoliopsida PerseapseudocarolinensisTertiaryMiocenePA300Blackhawk Ranch HillsideContra Costa County CaliforniaUnited States North America 0000 0000 0702 0592 yesP198925198925 PMagnoliopsida PerseapseudocarolinensisTertiaryMiocenePA300Blackhawk Ranch HillsideContra Costa County CaliforniaUnited States North America 0000 0000 0702 0593 yesP198926198926 PMagnoliopsida PerseaTertiaryMiocenePA300Blackhawk Ranch HillsideContra Costa County CaliforniaUnited States North America 0000 0000 0702 0594 yesP198927198927 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VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9219392193 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9219492194 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9219592195 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa CountyCaliforniaUnited States North AmericayesV9219692196 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9219792197 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9219892198 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States 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Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV9221392213 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9221492214 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9221592215 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9221692216 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9221792217 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9221892218 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9221992219 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CaliforniaUnited States North AmericayesV9223392233 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9223492234 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9223592235 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9223692236 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9223792237 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9223892238 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9223992239 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9224092240 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central ChannelContra Costa County CaliforniaUnited States North AmericayesV9224192241 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9224292242 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9224392243 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9224492244 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9224592245 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9224692246 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North AmericayesV9225392253 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9225492254 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9225592255 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9225692256 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited StatesNorth AmericayesV9225792257VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9225892258 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9225992259 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9226092260 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9226192261 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9226292262 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9226392263 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9226492264 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9226592265 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central ChannelContra Costa CountyCaliforniaUnited States North AmericayesV9226692266 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9226792267 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9226892268 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9226992269 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9227092270 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9227192271 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9227292272 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9227392273 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa CountyCaliforniaUnited States North AmericayesV9227492274 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9227592275 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9227692276 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9227792277 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9227892278 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9227992279 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9228092280 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9228192281 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9228292282 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central ChannelContra Costa County CaliforniaUnited States North AmericayesV9228392283 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9228492284 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9228592285 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9228692286 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9228792287 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9228892288 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9228992289 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9229092290 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV9229192291 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9229292292 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9229392293 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9229492294 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9229592295 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9229692296 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9229792297 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9229892298 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9229992299 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central ChannelContra Costa County CaliforniaUnited States North AmericayesV9230092300 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9230192301 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9230292302 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9230392303 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9230492304 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9230592305 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9230692306 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9230792307 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central ChannelContra Costa CountyCaliforniaUnited States North AmericayesV9230892308 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9230992309 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9231092310 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9231192311 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9231292312 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9231392313 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9231492314 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9231592315 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited StatesNorth AmericayesV9231692316VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9231792317 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9231892318 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9231992319 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9232092320 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9232192321 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9232292322 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9232392323 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9232492324 VMammaliaMicrotusQuaternaryPleistoceneV71001Central ChannelContra Costa County CaliforniaUnited States North AmericayesV9232592325 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9232692326 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9232792327 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9232892328 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9232992329 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9233092330 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9233192331 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North Americayes V9233292332 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9233392333 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9233492334 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9233592335 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9233692336 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9233792337 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9233892338 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9233992339 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9234092340 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa CountyCaliforniaUnited States North AmericayesV9234192341 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9234292342 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9234392343 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9234492344 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9234592345 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9234692346 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9234792347 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9234892348 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9234992349 VMammaliaMicrotusQuaternaryPleistoceneV71001Central ChannelContra Costa County CaliforniaUnited States North AmericayesV9235092350 VMammaliaMicrotusQuaternaryPleistoceneV71001Central Channel 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VMammaliaNeotomafuscipesQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9327093270 VMammaliaNeotomafuscipesQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited StatesNorth AmericayesV9327193271VMammaliaNeotomafuscipesQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9327293272 VMammaliaNeotomafuscipesQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9327393273 VMammaliaNeotomafuscipesQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9327493274 VMammaliaNeotomafuscipesQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9327593275 VMammaliaNeotomafuscipesQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9327693276 VMammaliaNeotomafuscipesQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9327793277 VMammaliaNeotomafuscipesQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9327893278 VMammaliaNeotomafuscipesQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9327993279 VMammaliaNeotomafuscipesQuaternaryPleistoceneV71001Central ChannelContra Costa CountyCaliforniaUnited States North AmericayesV9328093280 VMammaliaNeotomafuscipesQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9328193281 VMammaliaNeotomafuscipesQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9328293282 VMammaliaNeotomafuscipesQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9332593325 VMammaliaSpermophilus 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Contra Costa County CaliforniaUnited States North AmericayesV9341393413 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9341493414 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9341593415 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9341693416 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North Americayes V9341793417 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9341893418 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9341993419 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9342093420 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9342193421 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9342293422 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9342393423 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9342493424 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9342593425 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa CountyCaliforniaUnited States North AmericayesV9342693426 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9342793427 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VMammaliaSylvilagusQuaternaryPleistoceneV71001Central ChannelContra Costa County CaliforniaUnited States North AmericayesV9343593435 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9343693436 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9343793437 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9343893438 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9343993439 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9344093440 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9344193441 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9344293442 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV9344393443 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9344493444 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9344593445 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9344693446 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9344793447 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9344893448 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9344993449 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9345093450 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited StatesNorth AmericayesV9345193451VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9345293452 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9345393453 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9345493454 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9345593455 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9345693456 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9345793457 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9345893458 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9345993459 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central ChannelContra Costa CountyCaliforniaUnited States North AmericayesV9346093460 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9346193461 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9346293462 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9346393463 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9346493464 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9346593465 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9346693466 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9346793467 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa CountyCaliforniaUnited States North AmericayesV9346893468 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9346993469 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9347093470 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9347193471 VMammaliaSylvilagusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9357893578 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9357993579 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9358093580 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9358193581 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9358293582 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central ChannelContra Costa County CaliforniaUnited States North AmericayesV9358393583 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9358493584 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9358593585 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9358693586 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9358793587 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9358893588 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9358993589 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9359093590 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV9359193591 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9359293592 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9359393593 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9359493594 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9359593595 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9359693596 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9359793597 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9359893598 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9359993599 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central ChannelContra Costa County CaliforniaUnited States North AmericayesV9360093600 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9360193601 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9360293602 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9360393603 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9360493604 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9360593605 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9360693606 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9360793607 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central ChannelContra Costa CountyCaliforniaUnited States North AmericayesV9360893608 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9360993609 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9361093610 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9361193611 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9361293612 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9361393613 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9361493614 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9361593615 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited StatesNorth AmericayesV9361693616VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9361793617 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9361893618 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9361993619 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9362093620 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9362193621 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9362293622 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9362393623 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9362493624 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central ChannelContra Costa County CaliforniaUnited States North AmericayesV9362593625 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9362693626 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9362793627 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9362893628 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9362993629 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9363093630 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9363193631 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North Americayes V9363293632 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9363393633 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9363493634 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9363593635 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9363693636 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9363793637 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9363893638 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9363993639 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9364093640 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa CountyCaliforniaUnited States North AmericayesV9364193641 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9364293642 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9364393643 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9364493644 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9364593645 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9364693646 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9364793647 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9364893648 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9364993649 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central ChannelContra Costa County CaliforniaUnited States North AmericayesV9365093650 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9365193651 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9365293652 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9365393653 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9365493654 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9365593655 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9365693656 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9365793657 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV9365893658 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9365993659 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9366093660 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9366193661 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9366293662 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9366393663 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9366493664 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9366593665 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited StatesNorth AmericayesV9366693666VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9366793667 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9366893668 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9366993669 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9367093670 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9367193671 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9367293672 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9367393673 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9367493674 VMammaliaThomomysbottaeQuaternaryPleistoceneV71001Central ChannelContra Costa CountyCaliforniaUnited States North AmericayesV9367593675 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North AmericayesV9383893838 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9383993839 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9384093840 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9384193841 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9384293842 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9384393843 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9384493844 VMammaliaReithrodontomys 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CaliforniaUnited States North AmericayesV9385193851 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV71001Central Channel Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV9385293852 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9385393853 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9385493854 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9409694096 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9409794097 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9409894098 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9409994099 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9410094100 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited StatesNorth AmericayesV9410194101VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9410294102 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9410394103 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9410494104 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9410594105 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9410694106 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9410794107 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9410894108 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9410994109 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central ChannelContra Costa CountyCaliforniaUnited States North AmericayesV9411094110 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9411194111 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9411294112 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9411394113 VMammaliaPeromyscusmaniculatusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9411494114 VMammaliaPeromyscusmaniculatusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9411594115 VMammaliaPeromyscusmaniculatusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9411694116 VMammaliaPeromyscuscalifornicusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9411794117 VMammaliaPeromyscustrueiQuaternaryPleistoceneV71001Central Channel Contra Costa CountyCaliforniaUnited States North AmericayesV9411894118 VMammaliaPeromyscustrueiQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9411994119 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9412094120 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9412194121 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9412294122 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9412394123 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9412494124 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9412594125 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9412694126 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central ChannelContra Costa County CaliforniaUnited States North AmericayesV9412794127 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9412894128 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9412994129 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9413094130 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9413194131 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9413294132 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9413394133 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9413494134 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV9413594135 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9413694136 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9413794137 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9413894138 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9413994139 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9414094140 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9414194141 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9414294142 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9414394143 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central ChannelContra Costa County CaliforniaUnited States North AmericayesV9414494144 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9414594145 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9414694146 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9414794147 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9414894148 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9414994149 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9415094150 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9415194151 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central ChannelContra Costa CountyCaliforniaUnited States North AmericayesV9415294152 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9415394153 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9415494154 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9415594155 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9415694156 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9415794157 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9415894158 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9415994159 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited StatesNorth AmericayesV9416094160VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9416194161 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9416294162 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9416394163 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9416494164 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9416594165 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9416694166 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9416794167 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9416894168 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central ChannelContra Costa County CaliforniaUnited States North AmericayesV9416994169 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9417094170 VMammaliaPeromyscusQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV9417194171 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VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226104226104 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa CountyCaliforniaUnited States North AmericayesV226105226105 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226106226106 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226107226107 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226108226108 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226109226109 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226110226110 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States 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CaliforniaUnited States North AmericayesV226305226305 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226306226306 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226307226307 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV226308226308 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226309226309 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226310226310 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226311226311 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226312226312 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226313226313 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226314226314 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226315226315 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226316226316 VMammaliaQuaternaryPleistoceneV71001Central ChannelContra Costa County CaliforniaUnited States North AmericayesV226317226317 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226318226318 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226319226319 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226320226320 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226321226321 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226322226322 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226323226323 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226324226324 VMammaliaQuaternaryPleistoceneV71001Central ChannelContra Costa CountyCaliforniaUnited States North AmericayesV226325226325 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226326226326 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226327226327 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226328226328 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226329226329 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226330226330 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226331226331 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226332226332 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited StatesNorth AmericayesV226333226333VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226334226334 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226335226335 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226336226336 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226337226337 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226338226338 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226339226339 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226340226340 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226341226341 VMammaliaQuaternaryPleistoceneV71001Central ChannelContra Costa County CaliforniaUnited States North AmericayesV226342226342 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226343226343 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226344226344 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226345226345 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226346226346 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226347226347 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226348226348 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North Americayes V226349226349 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226350226350 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226351226351 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226352226352 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226353226353 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226354226354 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226355226355 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226356226356 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226357226357 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa CountyCaliforniaUnited States North AmericayesV226358226358 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226359226359 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226360226360 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226361226361 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226362226362 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226363226363 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226364226364 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226365226365 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226366226366 VMammaliaQuaternaryPleistoceneV71001Central ChannelContra Costa County CaliforniaUnited States North AmericayesV226367226367 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226368226368 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226369226369 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226370226370 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226371226371 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226372226372 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226373226373 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226374226374 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV226375226375 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226376226376 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226377226377 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226378226378 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226379226379 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226380226380 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226381226381 VMammaliaQuaternaryPleistoceneV71001Central Channel Contra Costa County CaliforniaUnited States North AmericayesV226382226382 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Contra Costa County CaliforniaUnited States North AmericayesP198918198918 PMagnoliopsida RosaTertiaryMioceneP3647Condit/Sander San PabloContra Costa County CaliforniaUnited States North AmericayesP198919198919 PMagnoliopsida RosaTertiaryMioceneP3647Condit/Sander San PabloContra Costa County CaliforniaUnited States North AmericayesV153902153902 VMammaliaTeleocerasTertiaryMioceneV99501Contra Costa College Contra Costa County CaliforniaUnited States North AmericayesV6753267532 VMammaliaMegatylopusTertiaryMioceneV6268Crow Canyon Crest Contra Costa County CaliforniaUnited States North AmericayesV5608056080 VMammaliaHipparionTertiaryMioceneV6000CurtisContra Costa County CaliforniaUnited States North AmericayesV130479130479 VMammaliaTertiaryMioceneV85014Curtis ClassContra Costa County CaliforniaUnited States North AmericayesV8339483394 VOsteichthyesTertiaryMioceneV6938Danville 1Contra Costa County CaliforniaUnited States North AmericayesV8339583395 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VMammaliaNeohipparionTertiaryMioceneV75061Dave's SandContra Costa County CaliforniaUnited States North AmericayesV113945113945 VMammaliaTertiaryMioceneV75061Dave's SandContra Costa County CaliforniaUnited States North AmericayesV113946113946 VMammaliaTertiaryMioceneV75061Dave's SandContra Costa County CaliforniaUnited States North AmericayesV89798979 VMammaliaTertiaryMioceneV4038Davis PointContra Costa County CaliforniaUnited States North AmericayesV7098870988 VReptiliaPUBLCretaceousLate Cretaceous V6670Delta Pumping Plant Contra Costa County CaliforniaUnited States North AmericayesV2986029860 VMammaliaEquuspacificusQuaternaryPleistoceneV3406Diablo Summit Road Contra Costa County CaliforniaUnited States North AmericayesV2986129861 VMammaliaEquuspacificusQuaternaryPleistoceneV3406Diablo Summit Road Contra Costa County CaliforniaUnited States North AmericayesV2986229862 VMammaliaBisonlatifronsFIGQuaternaryPleistoceneV3406Diablo Summit Road Contra Costa County CaliforniaUnited States North AmericayesV2986329863 VMammaliaBisonlatifronsPUBLQuaternaryPleistoceneV3406Diablo Summit Road Contra Costa County CaliforniaUnited States North AmericayesV2986429864 VMammaliaBisonQuaternaryPleistoceneV3406Diablo Summit Road Contra Costa County CaliforniaUnited States North America 0000 0000 0812 3464yesV2986529865 VMammaliaMammuthusQuaternaryPleistoceneV3406Diablo Summit Road Contra Costa County CaliforniaUnited States North AmericayesV3444934449 VMammaliaQuaternaryPleistoceneV3406Diablo Summit Road Contra Costa County CaliforniaUnited States North AmericayesV153896153896 VMammaliaEquuspacificusQuaternaryPleistoceneV3406Diablo Summit Road Contra Costa County CaliforniaUnited States North AmericayesV7767377673 VMammaliaMammuthusQuaternaryPleistoceneV6108Dinsmore Used Car Lot Contra Costa County CaliforniaUnited States North AmericayesV4966149661 VMammaliaPliohippusTertiaryMioceneV5807Donald Drive Contra Costa County CaliforniaUnited States North AmericayesM81918191 MPolythalameaFORAMINIFERATertiaryEoceneA1764Dry Creek Rd Contra Costa County CaliforniaUnited States North AmericayesM81928192 MPolythalameaFORAMINIFERATertiaryEoceneA1764Dry Creek Rd Contra Costa County CaliforniaUnited States North AmericayesM70467046 MPolythalameaFORAMINIFERATertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4002340023 MPolythalamea GaudryinapachecoensisFORAMINIFERA holotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North America 0000 0000 0405 1452 yesM4002440024 MPolythalamea GaudryinapachecoensisFORAMINIFERA paratypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4003140031 MPolythalamea DorothiaFORAMINIFERA hypotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4003640036 MPolythalamea Quinqueloculina triangularisFORAMINIFERA. hypotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4005240052 MPolythalamea RobulusinornatusFORAMINIFERA. OD = Robulina inornata Orbigny.hypotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4007240072 MPolythalamea MarginulinawinnianaFORAMINIFERA hypotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4007540075 MPolythalamea Vaginulinopsis mexicananudicostataFORAMINIFERA. OD = Cristellaria mexicana var. nudicostata Cushman & Hanna.hypotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4009540095 MPolythalamea NodosariaconsobrinaFORAMINIFERA. OD = Dentalina consobrina Orbigny.hypotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4015840158 MPolythalamea UvigerinaweaveriFORAMINIFERA holotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North America 0000 0000 0405 1728 yesM4015940159 MPolythalamea UvigerinaweaveriFORAMINIFERA paratypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4018340183 MPolythalamea EponidesFORAMINIFERA. hypotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4024240242 MPolythalamea DiscocyclinaFORAMINIFERA hypotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4441844418 MCoccolithusgrandisCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4441944419 MCoccolithusgrandisCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4442444424 MCyclococcolithus gammationCalcareous nannoplankton. OD = Coccolithites gammation.hypotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4444844448 MHelicosphaera seminulumlophotaCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4445744457 MRhabdosphaera semiformisCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4447344473 MZygrhablithus bijugatusCalcareous nannoplankton: OD = Rhabdolithus bijugatus Deflandre.hypotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4448044480 MMicrantholithus crenulatusCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4448144481 MMicrantholithus crenulatusCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4448244482 MMicrantholithus crenulatusCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4448844488 MMicrantholithus vesperCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4449444494 MDiscoasterdeflandreiCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4450044500 MDiscoasterdistinctusCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4450144501 MDiscoasterelegansCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4450244502 MDiscoasterelegansCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4450744507 MDiscoasterlenticularisCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4450844508 MDiscoasterlodoensisCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4451544515 MDiscoastertribrachiatusCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM4452944529 MSphenolithus radiansCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6665E bank of Arroyo del Hambre Creek, Muir StationContra Costa County CaliforniaUnited States North AmericayesM2300623006 MPolythalamea Robulusmexicanusmartinezensis FORAMINIFERATertiaryEoceneMF7617E of Martinez Contra Costa County CaliforniaUnited States North AmericayesM3595735957 MPolythalamea CibicidesmartinezensisFORAMINIFERA. holotypeTertiaryEoceneMF7617E of Martinez Contra Costa County CaliforniaUnited States North AmericayesM3595835958 MPolythalamea DentalinaapproximataFORAMINIFERA. OD = Nodosaria (Dentalina) approximata Reuss.hypotypeTertiaryEoceneMF7617E of Martinez Contra Costa County CaliforniaUnited States North AmericayesM3595935959 MPolythalamea DentalinaconsobrinaFORAMINIFERA. hypotypeTertiaryEoceneMF7617E of Martinez Contra Costa County CaliforniaUnited States North AmericayesM3596035960 MPolythalamea DentalinaconsobrinaFORAMINIFERA. hypotypeTertiaryEoceneMF7617E of Martinez Contra Costa County CaliforniaUnited States North AmericayesM3596135961 MPolythalamea GlobigerinabulloidesFORAMINIFERA hypotypeTertiaryEoceneMF7617E of Martinez Contra Costa County CaliforniaUnited States North AmericayesM3596235962 MPolythalamea Globorotalia crassataFORAMINIFERA. OD = Pulvinulina crassata CushmanhypotypeTertiaryEoceneMF7617E of Martinez Contra Costa County CaliforniaUnited States North AmericayesM3596335963 MPolythalamea Globorotalia crassatadensaFORAMINIFERA. OD = Pulvinulina crassata var. densa CushmanhypotypeTertiaryEoceneMF7617E of Martinez Contra Costa County CaliforniaUnited States North AmericayesM3596435964 MPolythalamea LagenaisabellaconscriptaFORAMINIFERA. OD = Lagena acuticosta var. proboscidialis Bandy.holotypeTertiaryEoceneMF7617E of Martinez Contra Costa County CaliforniaUnited States North AmericayesM3596535965 MPolythalamea LenticulinaconvergensFORAMINIFERA. OD = Cristellaria convergens BornemannhypotypeTertiaryEoceneMF7617E of Martinez Contra Costa County CaliforniaUnited States North AmericayesM3596635966 MPolythalamea Pseudoglandulina conicaFORAMINIFERA. OD = Glandulina conica NeugeborenhypotypeTertiaryEoceneMF7617E of Martinez Contra Costa County CaliforniaUnited States North AmericayesM3596735967 MPolythalamea Pseudoglandulina conicaFORAMINIFERA. OD = Glandulina conica NeugeborenhypotypeTertiaryEoceneMF7617E of Martinez Contra Costa County CaliforniaUnited States North AmericayesM3596835968 MPolythalamea Pseudoglandulina conicaFORAMINIFERA. OD = Glandulina conica NeugeborenhypotypeTertiaryEoceneMF7617E of Martinez Contra Costa County CaliforniaUnited States North AmericayesM3596935969 MPolythalamea RobulusinornatusFORAMINIFERA. OD = Robulina inornata Orbigny.hypotypeTertiaryEoceneMF7617E of Martinez Contra Costa County CaliforniaUnited States North AmericayesM3597035970 MPolythalamea RobulusinornatusFORAMINIFERA. OD = Robulina inornata Orbigny.hypotypeTertiaryEoceneMF7617E of Martinez Contra Costa County CaliforniaUnited States North AmericayesM3597935979 MPolythalamea RobulusmexicanusalticostatusFORAMINIFERA. hypotypeTertiaryEoceneMF7617E of Martinez Contra Costa County CaliforniaUnited States North AmericayesM3598035980 MPolythalamea RobulusmexicanusalticostatusFORAMINIFERA. hypotypeTertiaryEoceneMF7617E of Martinez Contra Costa County CaliforniaUnited States North AmericayesM70497049 MPolythalameaFORAMINIFERATertiaryPaleoceneA6659E side of rd to Selby Contra Costa County CaliforniaUnited States North AmericayesM4000040000 MPolythalamea RhabdamminaFORAMINIFERA hypotypeTertiaryPaleoceneA6659E side of rd to Selby Contra Costa County CaliforniaUnited States North AmericayesM4000140001 MPolythalamea Rhabdammina eocenicaFORAMINIFERA hypotypeTertiaryPaleoceneA6659E side of rd to Selby Contra Costa County CaliforniaUnited States North AmericayesM4000540005 MPolythalamea Haplophragmoides scitulumFORAMINIFERA. OD = Lituola (Haplophragmium) scitulum Brady.hypotypeTertiaryPaleoceneA6659E side of rd to Selby Contra Costa County CaliforniaUnited States North AmericayesM4000640006 MPolythalamea HaplophragmoidesFORAMINIFERA hypotypeTertiaryPaleoceneA6659E side of rd to Selby Contra Costa County CaliforniaUnited States North AmericayesM4000740007 MPolythalamea HaplophragmoidesFORAMINIFERA hypotypeTertiaryPaleoceneA6659E side of rd to Selby Contra Costa County CaliforniaUnited States North AmericayesM4000840008 MPolythalamea HaplophragmoidesFORAMINIFERA hypotypeTertiaryPaleoceneA6659E side of rd to Selby Contra Costa County CaliforniaUnited States North AmericayesM4000940009 MPolythalamea HaplophragmoidesFORAMINIFERA hypotypeTertiaryPaleoceneA6659E side of rd to Selby Contra Costa County CaliforniaUnited States North AmericayesM4001140011 MPolythalamea CribrostomoidesFORAMINIFERA hypotypeTertiaryPaleoceneA6659E side of rd to SelbyContra Costa CountyCaliforniaUnited States North AmericayesM4001240012 MPolythalamea AmmobaculitesFORAMINIFERA hypotypeTertiaryPaleoceneA6659E side of rd to Selby Contra Costa County CaliforniaUnited States North AmericayesM4003440034 MPolythalamea Silicosigmoilina californicaFORAMINIFERA hypotypeTertiaryPaleoceneA6659E side of rd to Selby Contra Costa County CaliforniaUnited States North AmericayesM4004040040 MPolythalamea Trochammina globigeriniformisFORAMINIFERA. OD = Lituola nautiloidea var. globigerinaformis Parker & Jones.hypotypeTertiaryPaleoceneA6659E side of rd to Selby Contra Costa County CaliforniaUnited States North AmericayesM4004140041 MPolythalamea Trochammina globigeriniformisFORAMINIFERA. OD = Lituola nautiloidea var. globigerinaformis Parker & Jones.hypotypeTertiaryPaleoceneA6659E side of rd to Selby Contra Costa County CaliforniaUnited States North AmericayesM4004340043 MPolythalamea TrochamminaFORAMINIFERA hypotypeTertiaryPaleoceneA6659E side of rd to Selby Contra Costa County CaliforniaUnited States North AmericayesM4024340243 MPolythalamea RhabdamminaFORAMINIFERA hypotypeTertiaryPaleoceneA6659E side of rd to Selby Contra Costa County CaliforniaUnited States North AmericayesV4494744947 VMammaliaPliohippusTertiaryMioceneV5508El Sobrante 1 Contra Costa County CaliforniaUnited States North AmericayesV3286832868 VMammaliaPUBLTertiaryMioceneV3523ElkingtonContra Costa County CaliforniaUnited States North AmericayesV5293952939 VMammaliaNannippusTertiaryMioceneV5840Estates Drive Contra Costa County CaliforniaUnited States North AmericayesV2983829838 VMammaliaTertiaryMioceneV3407Fossil Ridge 1 Contra Costa CountyCaliforniaUnited StatesNorth America 0000 0000 0611 1775 yesV6412664126 VMammaliaDesmostylusTertiaryMioceneV6316Fossil Ridge 2 Contra Costa County CaliforniaUnited States North AmericayesV6411964119 VMammaliaEquusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV6440164401 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9114891148 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9114991149 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North Americayes V9115091150 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9115191151 VMammaliaEnhydralutrisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9115291152 VMammaliaEnhydralutrisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9115391153 VMammaliaEnhydralutrisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9115491154 VMammaliaEquusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9115591155 VMammaliaAntilocapraQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9115691156 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9115791157 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9115891158 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9115991159 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9116091160 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV9116191161 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9116291162 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9116391163 VOsteichthyes Gasterosteus aculeatusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9116491164 VOsteichthyes GasterosteusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9116591165 VOsteichthyes Gasterosteus aculeatusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9116691166 VOsteichthyes Gasterosteus aculeatusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9116791167 VOsteichthyes Gasterosteus aculeatusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9116891168 VOsteichthyes Gasterosteus aculeatusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9116991169 VOsteichthyes Gasterosteus aculeatusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9117091170 VOsteichthyes Gasterosteus aculeatusQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV9117191171 VOsteichthyes Gasterosteus aculeatusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9117291172 VOsteichthyes Gasterosteus aculeatusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9117391173 VOsteichthyes Gasterosteus aculeatusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9117491174 VOsteichthyes Gasterosteus aculeatusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9117591175 VOsteichthyes Gasterosteus aculeatusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9117691176 VOsteichthyes Gasterosteus aculeatusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9117791177 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9117891178 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9117991179 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9118091180 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV9118191181 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9118291182 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9118391183 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9118491184 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9118591185 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9118691186 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9118791187 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9118891188 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VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9121791217 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9121891218 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9121991219 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9122091220 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9122191221VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9122291222 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9122391223 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9122491224 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9122591225 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9122691226 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9122791227 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9122891228 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9122991229 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9123091230 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9123191231VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9123291232 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9123391233 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9123491234 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9123591235 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9123691236 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9123791237 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9123891238 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9123991239 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9124091240 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9124191241VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9124291242 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9124391243 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9124491244 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9124591245 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9124691246 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9124791247 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9124891248 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9124991249 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9125091250 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9125191251 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited States North AmericayesV9125291252 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9125391253 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9125491254 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9125591255 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9125691256 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9125791257 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9125891258 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North Americayes V9125991259 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9126091260 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9126191261 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9126291262 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9126391263 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9126491264 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9126591265 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9126691266 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9126791267 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9126891268 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9126991269 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV9127091270 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9127191271 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9127291272 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9127391273 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9127491274 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9127591275 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9127691276 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9127791277 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9127891278 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9127991279 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV9128091280 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9128191281 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9128291282 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9128391283 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9128491284 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9128591285 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9128691286 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9128791287 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9128891288 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9128991289 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV9129091290 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9129191291 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9129291292 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9129391293 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9129491294 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9129591295 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9129691296 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9129791297 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9129891298 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9129991299 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV9130091300 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9130191301 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9130291302 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9130391303 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9130491304 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9130591305 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9130691306 VMammaliaMicrotusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9149191491 VMammaliaCamelopsQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9171291712 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9171391713 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited StatesNorth AmericayesV9171491714VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9171591715 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9171691716 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9171791717 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9171891718 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9171991719 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9172091720 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9172191721 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9172291722 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9172391723 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited StatesNorth AmericayesV9172491724VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9172591725 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9172691726 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9172791727 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9244392443 VAvesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9244492444 VMammaliaOdocoileusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9244792447 VMammaliaBisonQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9248292482 VMammaliaSorexQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9250892508 VReptiliaClemmysmarmorataQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9250992509 VReptiliaClemmysmarmorataQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9251092510VReptiliaClemmysmarmorataQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9251192511 VReptiliaClemmysmarmorataQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9251292512 VReptiliaClemmysmarmorataQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9251392513 VReptiliaClemmysmarmorataQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9251492514 VReptiliaClemmysmarmorataQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9251592515 VReptiliaClemmysmarmorataQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9319193191 VMammaliaSpermophilus beecheyiQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9319293192 VMammaliaSpermophilus beecheyiQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9319393193 VMammaliaSpermophilus beecheyiQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9319493194 VMammaliaSpermophilus beecheyiQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9319593195VMammaliaSpermophilusbeecheyiQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9319693196 VMammaliaSpermophilus beecheyiQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9319793197 VMammaliaSpermophilus beecheyiQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9319893198 VMammaliaSpermophilus beecheyiQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9319993199 VMammaliaSpermophilus beecheyiQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9320093200 VMammaliaSpermophilus beecheyiQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9320193201 VMammaliaSpermophilus beecheyiQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9320293202 VMammaliaSpermophilus beecheyiQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9320393203 VMammaliaSpermophilus beecheyiQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9320493204 VMammaliaSpermophilus beecheyiQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9320593205VMammaliaSpermophilusbeecheyiQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9320693206 VMammaliaSpermophilus beecheyiQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9320793207 VMammaliaSpermophilus beecheyiQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9320893208 VMammaliaSpermophilus beecheyiQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9328393283 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9328493284 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9328593285 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9328693286 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9328793287 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9328893288 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9328993289 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited States North AmericayesV9329093290 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9329193291 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9329293292 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9329393293 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9329493294 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9329593295 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9329693296 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North Americayes V9329793297 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9329893298 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9329993299 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9330093300 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9330193301 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9330293302 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9330393303 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9330493304 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9330593305 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9330693306 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9330793307 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV9330893308 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9330993309 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9331093310 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9331193311 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9331293312 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9331393313 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9331493314 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9331593315 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9331693316 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9331793317 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV9331893318 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9331993319 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9332093320 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County 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North AmericayesV9336093360 VMammaliaSylvilagusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9336193361 VMammaliaSylvilagusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9336293362 VMammaliaSylvilagusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9336393363 VMammaliaSylvilagusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9336493364 VMammaliaSylvilagusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited StatesNorth AmericayesV9336593365VMammaliaSylvilagusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9336693366 VMammaliaSylvilagusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9336793367 VMammaliaSylvilagusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9336893368 VMammaliaSylvilagusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9336993369 VMammaliaSylvilagusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9337093370 VMammaliaSylvilagusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9337193371 VMammaliaSylvilagusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9337293372 VMammaliaSylvilagusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9337393373 VMammaliaSylvilagusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9337493374 VMammaliaSylvilagusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States 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VMammaliaThomomysbottaeQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9352793527 VMammaliaThomomysbottaeQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9352893528 VMammaliaThomomysbottaeQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9352993529 VMammaliaThomomysbottaeQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9353093530 VMammaliaThomomysbottaeQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9353193531 VMammaliaThomomysbottaeQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9353293532 VMammaliaThomomysbottaeQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9353393533 VMammaliaThomomysbottaeQuaternaryPleistoceneV6312GarretsonContra Costa County 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CaliforniaUnited States North AmericayesV9370393703 VMammaliaLepusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9370493704 VMammaliaSylvilagusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9370593705 VMammaliaSylvilagusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9370693706 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North Americayes V9370793707 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9370893708 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9370993709 VMammaliaNeotomafuscipesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9371093710 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North AmericayesV9373793737 VMammaliaPerognathusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9373893738 VMammaliaPerognathusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9373993739 VMammaliaPerognathusQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV9374093740 VMammaliaPerognathusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9374193741 VMammaliaPerognathusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9374293742 VMammaliaPerognathusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9374393743 VMammaliaPerognathusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9374493744 VMammaliaPerognathusQuaternaryPleistoceneV6312GarretsonContra Costa County 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VMammaliaPerognathusQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV9376093760 VMammaliaPerognathusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9376193761 VMammaliaPerognathusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9376293762 VMammaliaPerognathusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9376393763 VMammaliaPerognathusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9381593815 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9381693816 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9381793817 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9381893818 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9381993819 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9382093820 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited StatesNorth AmericayesV9382193821VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9382293822 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9382393823 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9382493824 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9382593825 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9382693826 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9382793827 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9382893828 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9382993829 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9383093830 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited StatesNorth AmericayesV9383193831VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9383293832 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9383393833 VMammaliaReithrodontomys raviventrisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9397993979 VMammaliaThomomysbottaeQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9402394023 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9402494024 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9402594025 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9402694026 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9402794027 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9402894028 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9402994029VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9403094030 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9403194031 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9403294032 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9403394033 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9403494034 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9403594035 VMammaliaPeromyscustrueiQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9403694036 VMammaliaPeromyscustrueiQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9403794037 VMammaliaPeromyscustrueiQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9403894038 VMammaliaPeromyscusmaniculatusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9403994039VMammaliaPeromyscusboyliiQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9404094040 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9404194041 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9404294042 VMammaliaPeromyscustrueiQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9404394043 VMammaliaPeromyscustrueiQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9404594045 VMammaliaPeromyscusmaniculatusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9404694046 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9404794047 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9404894048 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9404994049 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9405094050VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9405194051 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9405294052 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9405394053 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9405494054 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9405594055 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9405694056 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9405794057 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9405894058 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9405994059 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9406094060 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited States North AmericayesV9406194061 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9406294062 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9406394063 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9406494064 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9406594065 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9406694066 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9406794067 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North Americayes V9406894068 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9406994069 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9407094070 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9407194071 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9407294072 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9407394073 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9407494074 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9407594075 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9407694076 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9407794077 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9407894078 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV9407994079 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9408094080 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County 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CaliforniaUnited States North AmericayesV9652596525 VReptiliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9652696526 VReptiliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9652796527 VReptiliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9652896528 VReptiliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9652996529 VReptiliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9653096530 VReptiliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9653196531 VReptiliaQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited States North AmericayesV9653296532 VReptiliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9653396533 VReptiliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9653496534 VReptiliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9653596535 VReptiliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9653696536 VReptiliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9653796537 VReptiliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9653896538 VReptiliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9653996539 VReptiliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9654096540 VReptiliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9654196541 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CaliforniaUnited States North AmericayesV9655096550 VReptiliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9655196551 VReptiliaQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV9655296552 VReptiliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9655396553 VReptiliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9655496554 VReptiliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9656496564 VReptiliaCrotalusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9656596565 VOsteichthyesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9656696566 VOsteichthyesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9656796567 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aculeatusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9659896598 VOsteichthyesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9659996599 VChondrichthyes MyliobatisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9660096600 VChondrichthyes MyliobatisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9712897128 VChondrichthyes MyliobatisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9712997129 VOsteichthyesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9713097130 VOsteichthyesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9713197131 VChondrichthyes MyliobatisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States 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CaliforniaUnited States North AmericayesV9743197431 VOsteichthyesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9743297432 VOsteichthyes OrthodonQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9743397433 VChondrichthyes MyliobatisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9743597435 VChondrichthyesQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV9743697436 VChondrichthyesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9743797437 VChondrichthyes MyliobatisQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9743997439 VOsteichthyesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9744097440 VOsteichthyesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9744197441 VOsteichthyesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9744297442 VOsteichthyesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9744397443 VOsteichthyesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9744597445 VAmphibiaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9744697446 VAmphibiaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9744797447 VAmphibiaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited StatesNorth AmericayesV9744897448VAmphibiaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9744997449 VAmphibiaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9745097450 VAmphibiaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9745197451 VAmphibiaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9745297452 VAmphibiaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9745397453 VAmphibiaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9745497454 VAmphibiaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9745597455 VReptiliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9745697456 VReptiliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9745797457 VReptiliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited StatesNorth AmericayesV9745897458VReptiliaOphidiaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9745997459 VReptiliaOphidiaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9746097460 VReptiliaOphidiaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9746197461 VReptiliaOphidiaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9746297462 VReptiliaOphidiaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9746397463 VReptiliaOphidiaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9746497464 VReptiliaOphidiaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9746597465 VAvesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9746697466 VAvesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9746797467 VAvesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9746897468VAvesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9746997469 VAvesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV9747097470 VAvesQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225162225162 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225163225163 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225164225164 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225165225165 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225166225166 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225167225167 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225168225168 VMammaliaPeromyscusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225169225169VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225170225170 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225171225171 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225172225172 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225173225173 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225174225174 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225175225175 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225176225176 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225177225177 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225178225178 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225179225179VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225180225180 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225181225181 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225182225182 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225183225183 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225184225184 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225185225185 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225521225521 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225522225522 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225523225523 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225524225524 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited States North AmericayesV225525225525 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225526225526 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225527225527 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225528225528 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225529225529 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225530225530 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225531225531 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North Americayes V225532225532 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225533225533 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225534225534 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225535225535 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225536225536 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225537225537 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225538225538 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225539225539 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225540225540 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225541225541 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225542225542 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV225543225543 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225544225544 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225545225545 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225546225546 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225547225547 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225548225548 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225549225549 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225550225550 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225551225551 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225552225552 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV225553225553 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225554225554 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225555225555 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225556225556 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225557225557 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225558225558 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225559225559 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225560225560 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225561225561 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225562225562 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV225563225563 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225564225564 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225565225565 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225566225566 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225567225567 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225568225568 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225569225569 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225570225570 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225571225571 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225572225572 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV225573225573 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225574225574 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225575225575 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225576225576 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225577225577 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225578225578 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225579225579 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225580225580 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225581225581 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225582225582 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited StatesNorth AmericayesV225583225583VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225584225584 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225585225585 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225586225586 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225587225587 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225588225588 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225589225589 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225590225590 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225591225591 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225592225592 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited StatesNorth AmericayesV225593225593VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225594225594 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225595225595 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225596225596 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225597225597 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225598225598 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225599225599 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225600225600 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225601225601 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225602225602 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225603225603VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225604225604 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225605225605 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225606225606 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225607225607 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225608225608 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225609225609 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225610225610 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225611225611 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225612225612 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225613225613VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225614225614 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225615225615 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225616225616 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225617225617 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225618225618 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225619225619 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225620225620 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225621225621 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225622225622 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225623225623VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225624225624 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225625225625 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225626225626 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225627225627 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225628225628 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225629225629 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225630225630 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225631225631 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225632225632 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225633225633 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited States North AmericayesV225634225634 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225635225635 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225636225636 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225637225637 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225638225638 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225639225639 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225640225640 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North Americayes V225641225641 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225642225642 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225643225643 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225644225644 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225645225645 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225646225646 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225647225647 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225648225648 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225649225649 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225650225650 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225651225651 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV225652225652 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225653225653 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225654225654 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225655225655 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225656225656 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225657225657 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225658225658 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225659225659 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225660225660 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225661225661 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV225662225662 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225663225663 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225664225664 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225665225665 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225666225666 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225667225667 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225668225668 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225669225669 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225670225670 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225671225671 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV225672225672 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225673225673 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225674225674 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225675225675 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225676225676 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225677225677 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225678225678 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225679225679 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225680225680 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225681225681 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV225682225682 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225683225683 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225684225684 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225685225685 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225686225686 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225687225687 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225688225688 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225689225689 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225690225690 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225691225691 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited StatesNorth AmericayesV225692225692VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225693225693 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225694225694 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225695225695 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225696225696 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225697225697 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225698225698 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225699225699 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225700225700 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225701225701 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited StatesNorth AmericayesV225702225702VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225703225703 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225704225704 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225705225705 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225706225706 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225707225707 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225708225708 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225709225709 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225710225710 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225711225711 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225712225712VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225713225713 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225714225714 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225715225715 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225716225716 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225717225717 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225718225718 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225719225719 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225720225720 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225721225721 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225722225722VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225723225723 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225724225724 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225725225725 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225726225726 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225727225727 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225728225728 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225729225729 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225730225730 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225731225731 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225732225732VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225733225733 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225734225734 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225735225735 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225736225736 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225737225737 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225738225738 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225739225739 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225740225740 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225741225741 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225742225742 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited States North AmericayesV225743225743 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225744225744 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225745225745 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225746225746 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225747225747 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225748225748 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225749225749 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North Americayes V225750225750 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225751225751 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225752225752 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225753225753 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225754225754 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225755225755 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225756225756 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225757225757 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225758225758 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225759225759 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225760225760 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV225761225761 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225762225762 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225763225763 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225764225764 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225765225765 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225766225766 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225767225767 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225768225768 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225769225769 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225770225770 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV225771225771 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225772225772 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225773225773 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225774225774 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225775225775 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225776225776 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225777225777 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225778225778 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225779225779 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225780225780 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV225781225781 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225782225782 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225783225783 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225784225784 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225785225785 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225786225786 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225787225787 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225788225788 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225789225789 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225790225790 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV225791225791 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225792225792 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225793225793 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225794225794 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225795225795 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225796225796 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225797225797 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225798225798 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225799225799 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225800225800 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited StatesNorth AmericayesV225801225801VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225802225802 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225803225803 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225804225804 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225805225805 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225806225806 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225807225807 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225808225808 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225809225809 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225810225810 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited StatesNorth AmericayesV225811225811VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225812225812 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225813225813 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225814225814 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225815225815 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225816225816 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225817225817 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225818225818 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225819225819 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225820225820 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225821225821VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225822225822 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225823225823 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225824225824 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225825225825 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225826225826 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225827225827 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225828225828 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225829225829 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225830225830 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225831225831VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225832225832 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225833225833 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225834225834 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225835225835 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225836225836 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225837225837 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225838225838 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225839225839 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225840225840 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225841225841VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225842225842 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225843225843 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225844225844 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225845225845 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225846225846 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225847225847 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225848225848 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225849225849 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225850225850 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225851225851 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited States North AmericayesV225852225852 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225853225853 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225854225854 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225855225855 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225856225856 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225857225857 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225858225858 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North Americayes V225859225859 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225860225860 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225861225861 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225862225862 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225863225863 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225864225864 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225865225865 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225866225866 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225867225867 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225868225868 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225869225869 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV225870225870 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225871225871 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225872225872 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225873225873 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225874225874 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225875225875 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225876225876 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225877225877 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225878225878 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225879225879 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV225880225880 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225881225881 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225882225882 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225883225883 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225884225884 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225885225885 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225886225886 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225887225887 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225888225888 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225889225889 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa CountyCaliforniaUnited StatesNorth AmericayesV225890225890 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225891225891 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225892225892 VMammaliaQuaternaryPleistoceneV6312GarretsonContra Costa County CaliforniaUnited States North AmericayesV225893225893 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North AmericayesV9719697196 VOsteichthyesQuaternaryPleistoceneV5225Highway 40 1 Contra Costa County CaliforniaUnited States North AmericayesV9719897198 VQuaternaryPleistoceneV5225Highway 40 1 Contra Costa County CaliforniaUnited States North AmericayesV9719997199 VQuaternaryPleistoceneV5225Highway 40 1Contra Costa County CaliforniaUnited States North AmericayesV9743497434 VChondrichthyesQuaternaryPleistoceneV5225Highway 40 1 Contra Costa County CaliforniaUnited States North AmericayesV9743897438 VOsteichthyesQuaternaryPleistoceneV5225Highway 40 1 Contra Costa County CaliforniaUnited States North AmericayesV9744497444 VOsteichthyesQuaternaryPleistoceneV5225Highway 40 1 Contra Costa County CaliforniaUnited States North AmericayesV3286632866 VMammaliaPliohippusPUBLTertiaryMioceneV3338Hill 1284 1Contra Costa County CaliforniaUnited States North AmericayesV3286732867 VMammaliaPliohippusPUBLTertiaryMioceneV3339Hill 1284 2Contra Costa County CaliforniaUnited States North AmericayesV21422142 VMammaliaPliohippusTertiaryMiocene‐1037 Hipparion Point 1 Contra Costa County CaliforniaUnited States North AmericayesV98409840 VMammaliaTertiaryMiocene‐1037Hipparion Point 1Contra Costa County CaliforniaUnited States North AmericayesV98419841 VReptiliaCryptodiraTertiaryMiocene‐1037 Hipparion Point 1 Contra Costa County CaliforniaUnited States North AmericayesV2005520055 VMammaliaTeleocerasTertiaryMiocene‐1037 Hipparion Point 1 Contra Costa County CaliforniaUnited States North AmericayesV2724127241 VMammaliaMerychippus sumaniTertiaryMiocene‐1037 Hipparion Point 1 Contra Costa County CaliforniaUnited States North AmericayesV2969229692 VMammaliaPUBLTertiaryMiocene‐1037 Hipparion Point 1 Contra Costa County CaliforniaUnited States North AmericayesV2969329693 VMammaliaTertiaryMiocene‐1037 Hipparion Point 1 Contra Costa County CaliforniaUnited States North AmericayesV2969429694 VReptiliaCryptodiraTertiaryMiocene‐1037 Hipparion Point 1 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV2970829708 VMammaliaTeleocerasfossigerFIGTertiaryMiocene‐1037 Hipparion Point 1 Contra Costa County CaliforniaUnited States North AmericayesV2970929709 VMammaliaPliohippusinterpolatusFIGTertiaryMiocene‐1037 Hipparion Point 1 Contra Costa County CaliforniaUnited States North AmericayesV2971029710 VMammaliaTeleocerasfossigerFIGTertiaryMiocene‐1037 Hipparion Point 1 Contra Costa County CaliforniaUnited States North AmericayesV2971429714 VMammaliaTertiaryMiocene‐1037 Hipparion Point 1 Contra Costa County CaliforniaUnited States North AmericayesV3275132751 VMammaliaPliohippusTertiaryMiocene‐1037 Hipparion Point 1 Contra Costa County CaliforniaUnited States North AmericayesV3297832978 VMammaliaPliohippusTertiaryMiocene‐1037 Hipparion Point 1 Contra Costa County CaliforniaUnited States North AmericayesV3455234552VMammaliaPliohippusinterpolatusTertiaryMiocene‐1037Hipparion Point 1 Contra Costa County CaliforniaUnited States North AmericayesV3455334553 VMammaliaPliohippusinterpolatusTertiaryMiocene‐1037 Hipparion Point 1 Contra Costa County CaliforniaUnited States North AmericayesV3455434554 VMammaliaPliohippusinterpolatusTertiaryMiocene‐1037 Hipparion Point 1 Contra Costa County CaliforniaUnited States North AmericayesV3455534555 VMammaliaNeohipparionTertiaryMiocene‐1037 Hipparion Point 1 Contra Costa County CaliforniaUnited States North AmericayesV3455634556 VMammaliaNannippusTertiaryMiocene‐1037 Hipparion Point 1 Contra Costa County CaliforniaUnited States North AmericayesV3455734557 VMammaliaTertiaryMiocene‐1037 Hipparion Point 1 Contra Costa County CaliforniaUnited States North AmericayesV3455834558 VMammaliaTeleocerasTertiaryMiocene‐1037 Hipparion Point 1Contra Costa County CaliforniaUnited States North AmericayesV3455934559 VMammaliaTeleocerasTertiaryMiocene‐1037 Hipparion Point 1 Contra Costa County CaliforniaUnited States North AmericayesV3456034560 VMammaliaSphenophalosTertiaryMiocene‐1037 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VMammaliaTeleocerasTertiaryMiocene‐1037 Hipparion Point 1 Contra Costa County CaliforniaUnited States North AmericayesV3757337573 VMammaliaTeleocerasTertiaryMiocene‐1037 Hipparion Point 1 Contra Costa County CaliforniaUnited States North AmericayesV3757437574 VMammaliaPliohippusTertiaryMiocene‐1037 Hipparion Point 1 Contra Costa County CaliforniaUnited States North AmericayesV2971129711VMammaliaMammuthusQuaternaryPleistoceneV5232Hipparion Point 2 Contra Costa County CaliforniaUnited States North AmericayesV2971229712 VMammaliaMammuthusQuaternaryPleistoceneV5232Hipparion Point 2 Contra Costa County CaliforniaUnited States North AmericayesV4267342673 VMammaliaGlossotheriumQuaternaryPleistoceneV5232Hipparion Point 2 Contra Costa County CaliforniaUnited States North AmericayesV4267442674 VMammaliaGlossotheriumQuaternaryPleistoceneV5232Hipparion Point 2 Contra Costa County CaliforniaUnited States North AmericayesV4111441114 VMammaliaTertiaryMioceneV5055HolmesContra Costa County CaliforniaUnited States North AmericayesM70477047 MPolythalameaFORAMINIFERATertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4008640086 MPolythalamea DentalinaapproximataFORAMINIFERA. OD = Nodosaria (Dentalina) approximata Reuss.hypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4010540105 MPolythalamea SaracenariaFORAMINIFERA hypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4017740177 MPolythalamea EponidesmexicanaFORAMINIFERA. OD = Pulvinulina mexicana Cushman.hypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4440344403 MChiphragmalithus calathusCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4440444404 MChiphragmalithus calathusCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4440544405 MChiphragmalithus dubiusCalcareous nannoplankton. OD = Zygolithus dubius Deflandre.hypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4440744407 MCoccolithites delusCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4441544415 MPrymnesiophyceae CoccolithuscribellumCALCAREOUS NANNOPLANKTON. OD = Coccolithites cribellum Bramlette & Sullivan.hypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4442044420 MCoccolithussolitusCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4442144421 MCoccolithusstaurionCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4442244422 MCoccolithusstaurionCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4442644426 MDiscolithusdistinctusCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4442944429 MDiscolithusfimbriatusCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4443344433 MDiscolithuspanariumCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4443444434 MDiscolithuspanariumCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4443644436 MDiscolithusplanusCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4443744437 MDiscolithuspulcherCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4443944439 MDiscolithuspulcheroidesCalcareous nannoplanktonholotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4444244442 MDiscolithusversusCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4444744447 MHelicosphaera seminulumseminulumCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4444944449 MLophodolithus mochlophorusCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4445244452 MRhabdosphaera crebraCalcareous nannoplankton. OD = Rhabdolithus crebra Deflandre.hypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4445344453 MRhabdosphaera morionumCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4445444454 MRhabdosphaera perlongaCalcareous nannoplankton. OD = Rhabdolithus perlongus Deflandre.hypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4445844458 MRhabdosphaera tenuisCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4447244472 MZygrhablithus bijugatusCalcareous nannoplankton: OD = Rhabdolithus bijugatus Deflandre.hypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4449544495 MDiscoasterdelicatusCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4451344513 MDiscoasternonaradiatusCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North Americayes M4451444514 MDiscoasterseptemradiatusCalcareous nannoplankton: OD = Agalmatoaster septemradiatus Klumpp.hypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4511845118 MChiphragmalithus dubiusCalcareous nannoplankton. OD = Zygolithus dubius Deflandre.hypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM4516245162 MRhabdosphaera tenuisCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6666Industrial Highway Contra Costa County CaliforniaUnited States North AmericayesM70927092 MPolythalameaFORAMINIFERATertiaryEoceneA6663Intersection of Industrial Hwy & Hwy 21Contra Costa County CaliforniaUnited States North AmericayesM4002940029 MPolythalamea DorothiaprincipensisFORAMINIFERA hypotypeTertiaryEoceneA6663Intersection of Industrial Hwy & Hwy 21Contra Costa County CaliforniaUnited States North AmericayesM4003340033 MPolythalamea SchenckiellaFORAMINIFERA hypotypeTertiaryEoceneA6663Intersection of Industrial Hwy & Hwy 21Contra Costa County CaliforniaUnited States North AmericayesM4003740037 MPolythalamea Spiroloculina lamposaFORAMINIFERA hypotypeTertiaryEoceneA6663Intersection of Industrial Hwy & Hwy 21Contra Costa County CaliforniaUnited States North AmericayesM4006440064 MPolythalamea RobuluswilliamsoniFORAMINIFERA. OD = Cristellaria williamsoni Reuss.hypotypeTertiaryEoceneA6664Intersection of Industrial Hwy & Hwy 21Contra Costa County CaliforniaUnited States North AmericayesM4008840088 MPolythalamea DentalinaspinosaFORAMINIFERA hypotypeTertiaryEoceneA6664Intersection of Industrial Hwy & Hwy 21Contra Costa County CaliforniaUnited States North AmericayesM4009040090 MPolythalamea DentalinaspinosaornataFORAMINIFERA paratypeTertiaryEoceneA6664Intersection of Industrial Hwy & Hwy 21Contra Costa County CaliforniaUnited States North AmericayesM4009740097 MPolythalamea NodosariadeliciaeFORAMINIFERA hypotypeTertiaryEoceneA6664Intersection of Industrial Hwy & Hwy 21Contra Costa County CaliforniaUnited States North AmericayesM4013940139 MPolythalamea BuliminacorrugataFORAMINIFERA hypotypeTertiaryEoceneA6664Intersection of Industrial Hwy & Hwy 21Contra Costa County CaliforniaUnited States North AmericayesM4014040140 MPolythalamea BuliminagarzaensisFORAMINIFERA hypotypeTertiaryEoceneA6663Intersection of Industrial Hwy & Hwy 21Contra Costa County CaliforniaUnited States North AmericayesM4014340143 MPolythalamea BuliminatruncanaFORAMINIFERA hypotypeTertiaryEoceneA6664Intersection of Industrial Hwy & Hwy 21Contra Costa County CaliforniaUnited States North AmericayesM4015040150 MPolythalamea UvigerinaelongataFORAMINIFERA hypotypeTertiaryEoceneA6663Intersection of Industrial Hwy & Hwy 21Contra Costa County CaliforniaUnited States North AmericayesM4016340163 MPolythalamea PleurostomellaFORAMINIFERA hypotypeTertiaryEoceneA6663Intersection of Industrial Hwy & Hwy 21Contra Costa County CaliforniaUnited States North AmericayesM4019840198 MPolythalamea GlobigerinapseudobulloidesFORAMINIFERA hypotypeTertiaryEoceneA6664Intersection of Industrial Hwy & Hwy 21Contra Costa County CaliforniaUnited States North AmericayesM4022440224 MPolythalamea Cibicidesmartinezensis malloryiFORAMINIFERA. paratypeTertiaryEoceneA6663Intersection of Industrial Hwy & Hwy 21Contra Costa County CaliforniaUnited States North AmericayesM4022740227 MPolythalamea Cibicidesouachitaensis alhambrensis FORAMINIFERA paratypeTertiaryEoceneA6664Intersection of Industrial Hwy & Hwy 21Contra Costa County CaliforniaUnited States North AmericayesM4023940239 MPolythalamea CibicidoidesvenezuelanaFORAMINIFERA. OD = Cibicides venezuelana Nuttall.hypotypeTertiaryEoceneA6664Intersection of Industrial Hwy & Hwy 21Contra Costa County CaliforniaUnited States North AmericayesM4510845108 MChiphragmalithus cristatusCalcareous nannoplankton. OD = Trochaster cristatus Martini.hypotypeTertiaryEoceneA6663Intersection of Industrial Hwy & Hwy 21Contra Costa County CaliforniaUnited States North AmericayesM4510945109 MChiphragmalithus cristatusCalcareous nannoplankton. OD = Trochaster cristatus Martini.hypotypeTertiaryEoceneA6664Intersection of Industrial Hwy & Hwy 21Contra Costa County CaliforniaUnited States North AmericayesM4511045110 MChiphragmalithus cristatusCalcareous nannoplankton. OD = Trochaster cristatus Martini.hypotypeTertiaryEoceneA6664Intersection of Industrial Hwy & Hwy 21Contra Costa County CaliforniaUnited States North AmericayesM4511145111 MChiphragmalithus cristatusCalcareous nannoplankton. OD = Trochaster cristatus Martini.hypotypeTertiaryEoceneA6664Intersection of Industrial Hwy & Hwy 21Contra Costa County CaliforniaUnited States North AmericayesM4519645196 MDiscoasternonaradiatusCalcareous nannoplanktonhypotypeTertiaryEoceneA6664Intersection of Industrial Hwy & Hwy 21Contra Costa County CaliforniaUnited States North AmericayesV7822478224 VMammaliaMysticetiTertiaryMioceneV6787James Whale Contra Costa County CaliforniaUnited States North AmericayesV4340843408 VMammaliaTertiaryMioceneV5331Jonas Hill Road Contra Costa County CaliforniaUnited States North AmericayesV3289232892 VMammaliaHipparionforceiFIGTertiaryMioceneV3612Kaiser Creek Contra Costa County CaliforniaUnited States North AmericayesV3292532925 VMammaliaHipparionforceiFIGTertiaryMioceneV3612Kaiser Creek Contra Costa County CaliforniaUnited States North AmericayesV3412134121 VMammaliaTertiaryMioceneV3612Kaiser Creek Contra Costa County CaliforniaUnited States North AmericayesV3412234122 VMammaliaTertiaryMioceneV3612Kaiser Creek Contra Costa County CaliforniaUnited States North AmericayesV9489494894 VMammaliaHipparionTertiaryMioceneV3612Kaiser Creek Contra Costa County CaliforniaUnited States North AmericayesM3577135771 MPolythalamea Elphidium?clarkiFORAMINIFERA. OD = Elphidium? clarki Graham.holotypeTertiaryEoceneMF1017Kellogg Creek Contra Costa County CaliforniaUnited States North AmericayesM3577235772 MPolythalamea OperculinacampiFORAMINIFERA holotypeTertiaryEoceneMF1018Kellogg Creek Contra Costa County CaliforniaUnited States North AmericayesM7779.17779.1 MPolycystinaRADIOLARIATertiaryEoceneA6653Kellogg RdContra Costa County CaliforniaUnited States North AmericayesM7779.27779.2 MPolycystinaRADIOLARIATertiaryEoceneA6654Kellogg RdContra Costa County CaliforniaUnited States North AmericayesV5822058220 VMammaliaTertiaryMioceneV6107Kendall‐Mallory 1 Contra Costa County CaliforniaUnited States North AmericayesV5822158221 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North AmericayesV112798112798 VMammaliaTertiaryMioceneV6107Kendall‐Mallory 1 Contra Costa County CaliforniaUnited States North AmericayesV112799112799 VMammaliaTertiaryMioceneV6107Kendall‐Mallory 1 Contra Costa County CaliforniaUnited States North AmericayesV112800112800 VMammaliaTertiaryMioceneV6107Kendall‐Mallory 1 Contra Costa County CaliforniaUnited States North AmericayesV112802112802 VMammaliaTertiaryMioceneV6107Kendall‐Mallory 1 Contra Costa County CaliforniaUnited States North AmericayesV112803112803 VMammaliaEpicyonhaydeniTertiaryMioceneV6107Kendall‐Mallory 1 Contra Costa County CaliforniaUnited States North AmericayesV124431124431 VReptiliaAnniellaPUBLTertiaryMioceneV6107Kendall‐Mallory 1 Contra Costa County CaliforniaUnited States North AmericayesV124817124817 VMammaliaOsteoborusTertiaryMioceneV6107Kendall‐Mallory 1 Contra Costa County CaliforniaUnited States North AmericayesV124818124818 VMammaliaEquusTertiaryMioceneV6107Kendall‐Mallory 1 Contra Costa County CaliforniaUnited States North AmericayesV124819124819 VMammaliaEquusTertiaryMioceneV6107Kendall‐Mallory 1 Contra Costa County CaliforniaUnited States North AmericayesV124820124820 VMammaliaTertiaryMioceneV6107Kendall‐Mallory 1 Contra Costa County CaliforniaUnited States North AmericayesV124925124925 VAmphibiaTertiaryMioceneV6107Kendall‐Mallory 1 Contra Costa County CaliforniaUnited States North AmericayesV125565125565 VMammaliaTertiaryMioceneV6107Kendall‐Mallory 1 Contra Costa County CaliforniaUnited States North AmericayesV125677125677 VMammaliaHippariontrampasenseTertiaryMioceneV6107Kendall‐Mallory 1 Contra Costa County CaliforniaUnited States North AmericayesV125678125678 VMammaliaHippariontrampasenseTertiaryMioceneV6107Kendall‐Mallory 1 Contra Costa County CaliforniaUnited States North AmericayesV130125130125 VMammaliaNeohipparion trampasenseTertiaryMioceneV6107Kendall‐Mallory 1Contra Costa County CaliforniaUnited States North AmericayesV139383139383 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CaliforniaUnited States North AmericayesV8337483374 VMammaliaTertiaryMioceneV6879Kendall‐Mallory 2 Contra Costa County CaliforniaUnited States North AmericayesV8337583375 VMammaliaTertiaryMioceneV6879Kendall‐Mallory 2 Contra Costa County CaliforniaUnited States North AmericayesV8337683376 VMammaliaPliohippusTertiaryMioceneV6879Kendall‐Mallory 2 Contra Costa County CaliforniaUnited States North AmericayesV8337783377 VMammaliaNannippusTertiaryMioceneV6879Kendall‐Mallory 2 Contra Costa County CaliforniaUnited States North AmericayesV4966649666 VMammaliaTertiaryMioceneV5810KilmerContra Costa County CaliforniaUnited States North AmericayesM77807780 MPolythalameaFORAMINIFERATertiaryEoceneA1761Kirker CreekContra Costa CountyCaliforniaUnited States North AmericayesI5116851168 IEchinoideaKewiasp.TertiaryMioceneB9991Kirker PassContra Costa County CaliforniaUnited States North AmericayesV131581131581 VMammaliaHipparionTertiaryV83085KokinosContra Costa County CaliforniaUnited States North AmericayesM2383123831 MPolythalamea Plectofrondicularia jenkinsiFORAMINIFERATertiaryEoceneMF8067Kreyenhagen Quarry Contra Costa County CaliforniaUnited States North AmericayesV4530445304 VMammaliaTertiaryMioceneV5611Lafayette Bypass 1 Contra Costa County CaliforniaUnited States North AmericayesP331331 PMagnoliopsida PopulusalexanderiplesiotypeTertiaryPliocene163 Lafayette Dam Contra Costa County CaliforniaUnited States North AmericayesP366366 PMagnoliopsida UlmusbrownelliiplesiotypeTertiaryPliocene163 Lafayette Dam Contra Costa County CaliforniaUnited States North AmericayesP367367 PMagnoliopsida UlmusbrownelliiplesiotypeTertiaryPliocene163 Lafayette Dam Contra Costa County CaliforniaUnited States North AmericayesP368368 PMagnoliopsida UlmusbrownelliiplesiotypeTertiaryPliocene163 Lafayette Dam Contra Costa County CaliforniaUnited States North AmericayesP369369 PMagnoliopsida UlmusbrownelliiplesiotypeTertiaryPliocene163 Lafayette DamContra Costa CountyCaliforniaUnited States North AmericayesP389389 PMagnoliopsida PrunusmerriamiTertiaryPliocene163 Lafayette Dam Contra Costa County CaliforniaUnited States North AmericayesP395395 PMagnoliopsida RhusTertiaryPliocene163 Lafayette Dam Contra Costa County CaliforniaUnited States North AmericayesV2880228802 VMammaliaPUBLTertiaryMioceneV2838Lafayette Dam Contra Costa County CaliforniaUnited States North AmericayesI3820238202 IEchinoideaArbaciasp.HypotypeTertiaryMioceneD7289Lafayette Ridge Contra Costa County CaliforniaUnited States North AmericayesV7824778247 VMammaliaGlossotheriumQuaternaryPleistoceneV5705Las Juntas 1Contra Costa County CaliforniaUnited States North Americayes V3288332883 VMammaliaGomphotherium simpsoniTYPETertiaryMioceneV3607Las Trampas Creek Contra Costa County CaliforniaUnited States North AmericayesV3291432914 VMammaliaGomphotherium simpsoniFIGTertiaryMioceneV3607Las Trampas Creek Contra Costa County CaliforniaUnited States North AmericayesV4437144371 VMammaliaTertiaryMioceneV5402Las Trampas Creek 2 Contra Costa County CaliforniaUnited States North AmericayesV131795131795 VReptiliaGeocheloneTertiaryMioceneV5402Las Trampas Creek 2 Contra Costa County CaliforniaUnited States North AmericayesI1132111321 IEchinoideaClypeaster?brewerianusHypotypeTertiaryMiocene1222‐Las Trampas Ridge Contra Costa County CaliforniaUnited States North AmericayesI1483614836 IBivalviaClinocardium praeblandumHolotypeTertiaryMiocene1222‐Las Trampas Ridge Contra Costa County CaliforniaUnited States North AmericayesV9250392503 VReptiliaClemmysmarmorataQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9250492504 VReptiliaClemmysmarmorataQuaternaryPleistoceneV71002Lawlers BoundaryContra Costa CountyCaliforniaUnited States North AmericayesV9380493804 VMammaliaPerognathusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9380593805 VMammaliaPerognathusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9380693806 VMammaliaPerognathusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9380793807 VMammaliaPerognathusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9380893808 VMammaliaPerognathusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9380993809 VMammaliaPerognathusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9381093810 VMammaliaPerognathusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9381193811 VMammaliaPerognathusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa CountyCaliforniaUnited States North AmericayesV9393093930 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9393193931 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9393293932 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9393393933 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9393493934 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9393593935 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9393693936 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9393793937 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9393893938 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71002Lawlers BoundaryContra Costa County CaliforniaUnited States North AmericayesV9393993939 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9394093940 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9394193941 VMammaliaSpermophilus beecheyiQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9394293942 VMammaliaSpermophilus beecheyiQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9394393943 VMammaliaSpermophilus beecheyiQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9394493944 VMammaliaSpermophilus beecheyiQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9394593945 VMammaliaSpermophilus beecheyiQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9394693946 VMammaliaSpermophilus beecheyiQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV9394793947 VMammaliaSpermophilus beecheyiQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9394893948 VMammaliaSpermophilus beecheyiQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9394993949 VMammaliaSpermophilus beecheyiQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9395093950 VMammaliaNeotomafuscipesQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9395193951 VMammaliaScapanuslatimanusPUBLQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9395293952 VMammaliaScapanuslatimanusPUBLQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9395393953 VMammaliaPeromyscusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9395493954 VMammaliaSciurusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9395593955 VMammaliaSciurusQuaternaryPleistoceneV71002Lawlers BoundaryContra Costa County CaliforniaUnited States North AmericayesV9395693956 VMammaliaSciurusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9395793957 VMammaliaSciurusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9395893958 VMammaliaSylvilagusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9395993959 VMammaliaSylvilagusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9396093960 VMammaliaSylvilagusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9396193961 VMammaliaSylvilagusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9396293962 VMammaliaThomomysbottaeQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9396393963 VMammaliaThomomysbottaeQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV9396493964 VMammaliaThomomysbottaeQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9396593965 VMammaliaThomomysbottaeQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9396693966 VMammaliaThomomysbottaeQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9396793967 VMammaliaThomomysbottaeQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9396893968 VMammaliaThomomysbottaeQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9396993969 VMammaliaThomomysbottaeQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9397093970 VMammaliaThomomysbottaeQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9397193971 VMammaliaThomomysbottaeQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9397293972 VMammaliaThomomysbottaeQuaternaryPleistoceneV71002Lawlers BoundaryContra Costa County CaliforniaUnited States North AmericayesV9397393973 VMammaliaThomomysbottaeQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9397493974 VMammaliaThomomysbottaeQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9397593975 VMammaliaThomomysbottaeQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9397693976 VMammaliaThomomysbottaeQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9397793977 VMammaliaThomomysbottaeQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9397893978 VMammaliaThomomysbottaeQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9398093980 VMammaliaThomomysbottaeQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9398193981 VMammaliaThomomysbottaeQuaternaryPleistoceneV71002Lawlers BoundaryContra Costa CountyCaliforniaUnited States North AmericayesV9398293982 VMammaliaThomomysbottaeQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9431994319 VReptiliaOphidiaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9432094320 VReptiliaOphidiaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9720097200 VAvesQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9740397403 VOsteichthyes Gasterosteus aculeatusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9740497404 VAvesQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9740597405 VReptiliaOphidiaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9740697406 VChondrichthyes MyliobatisQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited StatesNorth AmericayesV9740997409VChondrichthyes MyliobatisQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9741097410 VAmphibiaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9741297412 VChondrichthyes MyliobatisQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9742597425 VChondrichthyes MyliobatisQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9742897428 VMammaliaBisonQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9742997429 VMammaliaBisonQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV9743097430 VMammaliaEquusQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226124226124 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226125226125 VMammaliaQuaternaryPleistoceneV71002Lawlers BoundaryContra Costa County CaliforniaUnited States North AmericayesV226126226126 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226127226127 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226128226128 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226129226129 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226130226130 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226131226131 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226132226132 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226558226558 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa CountyCaliforniaUnited States North AmericayesV226559226559 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226560226560 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226561226561 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226562226562 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226563226563 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226564226564 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226565226565 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226566226566 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226567226567 VMammaliaQuaternaryPleistoceneV71002Lawlers BoundaryContra Costa County CaliforniaUnited States North AmericayesV226568226568 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226569226569 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226570226570 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226571226571 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226572226572 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226573226573 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226574226574 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226575226575 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa CountyCaliforniaUnited StatesNorth Americayes V226576226576 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226577226577 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226578226578 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226579226579 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226580226580 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226581226581 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226582226582 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226583226583 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226584226584 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa CountyCaliforniaUnited States North AmericayesV226585226585 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226586226586 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226587226587 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226588226588 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226589226589 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226590226590 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226591226591 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226592226592 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226593226593 VMammaliaQuaternaryPleistoceneV71002Lawlers BoundaryContra Costa County CaliforniaUnited States North AmericayesV226594226594 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226595226595 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226596226596 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226597226597 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226598226598 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226599226599 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226600226600 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226601226601 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV226602226602 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226603226603 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226604226604 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226605226605 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226606226606 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226607226607 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226608226608 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226609226609 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited StatesNorth AmericayesV226628226628VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226629226629 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226630226630 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226631226631 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226632226632 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226633226633 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary Contra Costa County CaliforniaUnited States North AmericayesV226634226634 VMammaliaQuaternaryPleistoceneV71002Lawlers Boundary 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Contra Costa County CaliforniaUnited States North AmericayesP12831283 PMagnoliopsida Chionanthus membranaceusTertiaryMioceneP3836Loma Ranch II Contra Costa County CaliforniaUnited States North AmericayesP12841284 PMagnoliopsida Chionanthus membranaceusTertiaryMioceneP3836Loma Ranch IIContra Costa County CaliforniaUnited States North AmericayesP12851285 PEquisetopsida TaxodiumdubiumplesiotypeTertiaryMioceneP3836Loma Ranch II Contra Costa County CaliforniaUnited States North AmericayesV20052005 VMammaliaQuaternaryPleistoceneV1201Lone Tree Point 1 Contra Costa County CaliforniaUnited States North AmericayesV21672167 VMammaliaQuaternaryPleistoceneV1201Lone Tree Point 1 Contra Costa County CaliforniaUnited States North AmericayesV22412241 VMammaliaQuaternaryPleistoceneV1201Lone Tree Point 1 Contra Costa County CaliforniaUnited States North AmericayesV1099610996 VMammaliaEquuspacificusQuaternaryPleistoceneV1201Lone Tree Point 1 Contra Costa County CaliforniaUnited States 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Contra Costa County CaliforniaUnited States North AmericayesV2401224012 VMammaliaQuaternaryPleistoceneV1201Lone Tree Point 1 Contra Costa County CaliforniaUnited States North AmericayesV2970229702 VMammaliaQuaternaryPleistoceneV1201Lone Tree Point 1 Contra Costa County CaliforniaUnited States North AmericayesV3466834668 VMammaliaQuaternaryPleistoceneV1201Lone Tree Point 1 Contra Costa County CaliforniaUnited States North AmericayesV3466934669 VMammaliaQuaternaryPleistoceneV1201Lone Tree Point 1 Contra Costa County CaliforniaUnited States North AmericayesV3467034670 VMammaliaOdocoileusQuaternaryPleistoceneV1201Lone Tree Point 1 Contra Costa County CaliforniaUnited States North AmericayesV3704137041 VMammaliaCapromeryx minorQuaternaryPleistoceneV1201Lone Tree Point 1Contra Costa County CaliforniaUnited States North AmericayesV3830838308 VMammaliaEquusQuaternaryPleistoceneV1201Lone Tree Point 1 Contra Costa County CaliforniaUnited States North AmericayesV6392363923 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CaliforniaUnited States North AmericayesV6395363953 VMammaliaEquusQuaternaryPleistoceneV1201Lone Tree Point 1 Contra Costa County CaliforniaUnited States North AmericayesV6395463954 VMammaliaQuaternaryPleistoceneV1201Lone Tree Point 1 Contra Costa County CaliforniaUnited States North AmericayesV6395763957 VMammaliaGliresQuaternaryPleistoceneV1201Lone Tree Point 1 Contra Costa County CaliforniaUnited States North AmericayesV6934169341 VMammaliaQuaternaryPleistoceneV1201Lone Tree Point 1 Contra Costa County CaliforniaUnited States North AmericayesV7107071070 VMammaliaQuaternaryPleistoceneV1201Lone Tree Point 1 Contra Costa County CaliforniaUnited States North AmericayesV108554108554 VMammaliaQuaternaryPleistoceneV1201Lone Tree Point 1 Contra Costa County CaliforniaUnited States North AmericayesV212941212941 VMammaliaYoung ungulateQuaternaryPleistoceneV1201Lone Tree Point 1 Contra Costa County CaliforniaUnited States North AmericayesV226114226114 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CaliforniaUnited States North AmericayesV226122226122 VMammaliaOdocoileusQuaternaryPleistoceneV1201Lone Tree Point 1 Contra Costa CountyCaliforniaUnited StatesNorth Americayes V226123226123 VMammaliaLepusQuaternaryPleistoceneV1201Lone Tree Point 1 Contra Costa County CaliforniaUnited States North AmericayesV3564535645 VMammaliaBisonQuaternaryPleistoceneV4005Lone Tree Point 2 Contra Costa County CaliforniaUnited States North AmericayesV6141361413 VOsteichthyes CynoscionnobilisTertiaryMioceneV6211Lone Tree Point 3 Contra Costa County CaliforniaUnited States North AmericayesV125278125278 VMammaliaMysticetiTertiaryMioceneV81095LutherContra Costa County CaliforniaUnited States North AmericayesI1112111121 IBivalviaModioluskirkerensisHolotypeTertiaryEocene3081‐Markley Canyon Contra Costa County CaliforniaUnited States North AmericayesI1127211272 IBivalviaLedamarkleyensisHolotypeTertiaryEocene3081‐Markley Canyon Contra Costa County CaliforniaUnited States North AmericayesI1127911279 IBivalviaMalletiapackardiParatypeTertiaryEocene3080‐Markley Canyon Contra Costa County CaliforniaUnited States North AmericayesI1128011280 IBivalviaMalletiapackardiParatypeTertiaryEocene3080‐Markley Canyon Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1154111541 IBivalviaSchizothaerus nuttalliiHypotypeTertiaryMiocene2042‐Markley Canyon Contra Costa County CaliforniaUnited States North AmericayesI1155011550 IBivalviaModiolusgabbiHolotypeTertiaryMiocene2040‐Markley Canyon Contra Costa County CaliforniaUnited States North AmericayesI1156611566 IBivalviaOstreabourgeoisiiHypotypeTertiaryMiocene2040‐Markley Canyon Contra Costa County CaliforniaUnited States North AmericayesV8043180431 VOsteichthyesTertiaryEoceneV6820Markley Canyon Contra Costa County CaliforniaUnited States North AmericayesV8043280432 VOsteichthyesTeleosteiTertiaryEoceneV6820Markley Canyon Contra Costa County CaliforniaUnited States North AmericayesV8043380433 VOsteichthyesTertiaryEoceneV6821Markley Canyon Contra Costa County CaliforniaUnited States North AmericayesV8043580435 VChondrichthyesTertiaryMioceneV6823Markley Canyon Contra Costa County CaliforniaUnited States North AmericayesV8043680436 VChondrichthyesTertiaryMioceneV6824Markley Canyon Contra Costa CountyCaliforniaUnited States North AmericayesV8043780437 VChondrichthyesTertiaryMioceneV6825Markley Canyon Contra Costa County CaliforniaUnited States North AmericayesV8043880438 VChondrichthyesElasmobranchiiTertiaryMioceneV6825Markley Canyon Contra Costa County CaliforniaUnited States North AmericayesV8043980439 VOsteichthyesTertiaryMioceneV6825Markley Canyon Contra Costa County CaliforniaUnited States North AmericayesV8044080440 VAvesTertiaryMioceneV6825Markley Canyon Contra Costa County CaliforniaUnited States North AmericayesV8044180441 VOsteichthyesTertiaryMioceneV6826Markley Canyon Contra Costa County CaliforniaUnited States North AmericayesV8044280442 VMammaliaTertiaryMioceneV6826Markley Canyon Contra Costa County CaliforniaUnited States North AmericayesV8044380443 VChondrichthyesTertiaryMioceneV6827Markley Canyon Contra Costa County CaliforniaUnited States North AmericayesV8044480444 VAvesTertiaryMioceneV6827Markley Canyon Contra Costa County CaliforniaUnited States North AmericayesV8044580445 VOsteichthyesTertiaryMioceneV6827Markley CanyonContra Costa County CaliforniaUnited States North AmericayesV8044680446 VOsteichthyesTertiaryMioceneV6827Markley Canyon Contra Costa County CaliforniaUnited States North AmericayesV8044780447 VChondrichthyesTertiaryMioceneV6827Markley Canyon Contra Costa County CaliforniaUnited States North AmericayesV8044880448 VOsteichthyesTertiaryMioceneV6828Markley Canyon Contra Costa County CaliforniaUnited States North AmericayesV8044980449 VChondrichthyesTertiaryMioceneV6828Markley Canyon Contra Costa County CaliforniaUnited States North AmericayesV8045080450 VChondrichthyesTertiaryMioceneV6829Markley Canyon Contra Costa County CaliforniaUnited States North AmericayesV8045180451 VOsteichthyesTertiaryMioceneV6829Markley Canyon Contra Costa County CaliforniaUnited States North AmericayesV8045280452 VOsteichthyesTertiaryMioceneV6829Markley Canyon Contra Costa County CaliforniaUnited States North AmericayesV8045380453 VOsteichthyesTertiaryMioceneV6829Markley Canyon Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV8045480454 VOsteichthyesTertiaryMioceneV6830Markley Canyon 10 Contra Costa County CaliforniaUnited States North AmericayesV8045580455 VOsteichthyesTertiaryMioceneV6831Markley Canyon 11 Contra Costa County CaliforniaUnited States North AmericayesV8045680456 VChondrichthyesTertiaryMioceneV6831Markley Canyon 11 Contra Costa County CaliforniaUnited States North AmericayesV8045780457 VChondrichthyesElasmobranchiiTertiaryMioceneV6832Markley Canyon 12 Contra Costa County CaliforniaUnited States North AmericayesV8045880458 VOsteichthyesTertiaryMioceneV6832Markley Canyon 12 Contra Costa County CaliforniaUnited States North AmericayesV8045980459 VChondrichthyesTertiaryMioceneV6832Markley Canyon 12 Contra Costa County CaliforniaUnited States North AmericayesV8046080460 VChondrichthyesTertiaryMioceneV6832Markley Canyon 12 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV8046180461 VOsteichthyesTertiaryMioceneV6833Markley Canyon 13 Contra Costa County CaliforniaUnited States North AmericayesV8046280462 VOsteichthyesTertiaryMioceneV6833Markley Canyon 13 Contra Costa County CaliforniaUnited States North AmericayesV8046380463 VOsteichthyesTertiaryMioceneV6833Markley Canyon 13 Contra Costa County CaliforniaUnited States North AmericayesV8046480464 VChondrichthyesTertiaryMioceneV6833Markley Canyon 13 Contra Costa County CaliforniaUnited States North AmericayesV8046580465 VChondrichthyesTertiaryMioceneV6833Markley Canyon 13 Contra Costa County CaliforniaUnited States North AmericayesV8043480434 VOsteichthyesTertiaryEoceneV6822Markley Canyon 14 Contra Costa County CaliforniaUnited States North AmericayesV122037122037 VMammaliaTertiaryMioceneV78142Markley Canyon 18 Contra Costa County CaliforniaUnited States North AmericayesV122038122038 VMammaliaPliohippustehonensisTertiaryMioceneV78142Markley Canyon 18 Contra Costa County CaliforniaUnited States North AmericayesM2298322983 MPolythalameaFORAMINIFERA. Sorted Assemblage.TertiaryEoceneMF7607Markley Creek Contra Costa County CaliforniaUnited States North AmericayesM4900149001 MPolythalamea Praeglobotruncana stephaniFORAMINIFORAMINIFERA. OD = Globotruncana stephani Gandolfi.FERAhypotypeCretaceousLate Cretaceous12722 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4900249002 MPolythalamea Praeglobotruncana roddaiFORAMINIFERA. OD = Globotruncana roddai Marianos & Zingula.hypotypeCretaceousLate Cretaceous12722 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4901849018 MPolythalamea Globotruncana linneianaFORAMINIFERA. OD = Rosalina linneiana Orbigny.hypotypeCretaceousLate Cretaceous12736 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4902249022 MPolythalamea Globotruncana elevataFORAMINIFERA. OD = Rotalia elevata Brotzen.hypotypeCretaceousLate Cretaceous12737 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4904449044 MPolythalamea Rugoglobigerina rugosaFORAMINIFERA. OD = Globigerina rugosa Plummer.hypotypeCretaceousLate Cretaceous12745 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4904549045 MPolythalamea Rugoglobigerina rugosaFORAMINIFERA. OD = Globigerina rugosa Plummer.hypotypeCretaceousLate Cretaceous12745 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4905349053 MPolythalamea Globotruncana cretaceaFORAMINIFERA. OD = Globigerina cretacea Orbigny.hypotypeCretaceousLate Cretaceous12746 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4905449054 MPolythalamea Globotruncana ventricosaFORAMINIFERA. OD = Globotruncana canaliculata var. ventricosa White.hypotypeCretaceousLate Cretaceous12738 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4905649056 MPolythalamea Globotruncanella petaloideaFORAMINIFERA. OD = Globotruncana petaloidea Gandolfi.hypotypeCretaceousLate Cretaceous12723 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4905749057 MPolythalamea Globotruncana morozovaeFORAMINIFERA hypotypeCretaceousLate Cretaceous12741 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4906049060 MPolythalamea Globotruncana hilliFORAMINIFERA hypotypeCretaceousLate Cretaceous12741 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4906149061 MPolythalamea Globotruncana hilliFORAMINIFERA hypotypeCretaceousLate Cretaceous12741 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4906249062 MPolythalamea Globotruncana churchiFORAMINIFERA hypotypeCretaceousLate Cretaceous12739 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4906449064 MPolythalamea Globotruncana goudkoffiFORAMINIFERA hypotypeCretaceousLate Cretaceous12723 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4906749067 MPolythalamea Globotruncana stuartiformisFORAMINIFERA. OD = Globotruncana elevata stuartiformis Dalbiez.hypotypeCretaceousLate Cretaceous12742 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4906849068 MPolythalamea Globotruncana stuartiformisFORAMINIFERA. OD = Globotruncana elevata stuartiformis Dalbiez.hypotypeCretaceousLate Cretaceous12745 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4906949069 MPolythalamea Globotruncana stuartiformisFORAMINIFERA. OD = Globotruncana elevata stuartiformis Dalbiez.hypotypeCretaceousLate Cretaceous12745 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4907249072 MPolythalamea HedbergellamonmouthensisFORAMINIFERA. OD = Globorotalia monmouthensis Olsson.hypotypeCretaceousLate Cretaceous12741 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4907349073 MPolythalamea HedbergellaholmdelensisFORAMINIFERA hypotypeCretaceousLate Cretaceous12741 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4907449074 MPolythalamea HedbergellaFORAMINIFERA hypotypeCretaceousLate Cretaceous12741 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4907549075 MPolythalamea Globigerinelloides multispinaFORAMINIFERA. OD = Biglobigerinella multispina Lalicker.hypotypeCretaceousLate Cretaceous12741 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4907949079 MPolythalamea Globotruncana arcaFORAMINIFERA. OD = Pulvinulina arca CushmanhypotypeCretaceousLate Cretaceous12743 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4908149081 MPolythalamea Globotruncana arcaFORAMINIFERA. OD = Pulvinulina arca CushmanhypotypeCretaceousLate Cretaceous12738 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4908349083 MPolythalamea Globotruncana nothiFORAMINIFERA. OD = Rugotruncana nothi Bronnimann & Brown.hypotypeCretaceousLate Cretaceous12736 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4908449084 MPolythalamea Globotruncana nothiFORAMINIFERA. OD = Rugotruncana nothi Bronnimann & Brown.hypotypeCretaceousLate Cretaceous12743 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4908549085 MPolythalamea Globotruncanella havanensisFORAMINIFERA. OD = Globotruncana havanensis Voorwijk.hypotypeCretaceousLate Cretaceous12745 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4908649086 MPolythalamea HeterohelixstriataFORAMINIFERA. OD = Textularia striata Ehrenberg.hypotypeCretaceousLate Cretaceous12741 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4908749087 MPolythalamea HeterohelixstriataFORAMINIFERA. OD = Textularia striata Ehrenberg.hypotypeCretaceousLate Cretaceous12745 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4908849088 MPolythalamea HeterohelixstriataFORAMINIFERA. OD = Textularia striata Ehrenberg.hypotypeCretaceousLate Cretaceous12741 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4909349093 MPolythalamea HeterohelixpulchraFORAMINIFERA. OD = Guembelina pulchra Brotzen.hypotypeCretaceousLate Cretaceous12741 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4909749097 MPolythalamea Pseudoguembelina costulataFORAMINIFERA hypotypeCretaceousLate Cretaceous12741 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4909849098 MPolythalamea Planogobulina ornatissimaFORAMINIFERA. OD = Ventilabrella ornatissima Cushman & Church.hypotypeCretaceousLate Cretaceous12744 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4909949099 MPolythalamea Planogobulina ornatissimaFORAMINIFERA. OD = Ventilabrella ornatissima Cushman & Church.hypotypeCretaceousLate Cretaceous12741 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesM4910049100 MPolythalamea SchackoinamultispinataFORAMINIFERA. OD = Hantkenina multispinata Cushman & Wickenden.hypotypeCretaceousLate Cretaceous12741 Marsh Creek Contra Costa County CaliforniaUnited States North AmericayesI1007110071 IBivalviaTellinamathewsoniiPlastolectotype CretaceousD9871MartinezContra Costa County CaliforniaUnited States North America 0000 0000 0412 1955 yesI1007210072 IBivalviaTellinamathewsoniiParatypeCretaceousD9871MartinezContra Costa County CaliforniaUnited States North America 0000 0000 0412 1957 yesI1007310073 IBivalviaTellinamathewsoniiParatypeCretaceousD9871MartinezContra Costa County CaliforniaUnited States North America 0000 0000 0412 1958 yesI1007410074 IBivalviaTellinamathewsoniiParatypeCretaceousD9871MartinezContra Costa County CaliforniaUnited States North America 0000 0000 0412 1960 yesI1007510075 IBivalviaTellinamathewsoniiParatypeCretaceousD9871MartinezContra Costa County CaliforniaUnited States North America 0000 0000 0412 1074 yesI1007610076 IBivalviaTellinamathewsoniiParatypeCretaceousD9871MartinezContra Costa County CaliforniaUnited States North America 0000 0000 0412 1961yesI1007710077IBivalviaTellinamathewsoniiParatypeCretaceousD9871MartinezContra Costa County CaliforniaUnited States North America 0000 0000 0412 1963 yesI1007810078 IBivalviaTellinamathewsoniiParatypeCretaceousD9871MartinezContra Costa County CaliforniaUnited States North America 0000 0000 0412 1964 yesI1007910079 IBivalviaTellinamathewsoniiParatypeCretaceousD9871MartinezContra Costa County CaliforniaUnited States North America 0000 0000 0412 1965 yesI1008010080 IBivalviaTellinamathewsoniiParatypeCretaceousD9871MartinezContra Costa County CaliforniaUnited States North America 0000 0000 0412 1967 yesI11945a 11945aIBivalviaEoursivivascultriformisLectotypeCretaceousIP11355MartinezContra Costa County CaliforniaUnited States North AmericayesI3287632876 IBivalviaCorbulacultriformisParatypeCretaceousIP11355MartinezContra Costa County CaliforniaUnited States North AmericayesI5101251012 IBivalviaCorbulacultriformisCretaceousIP11355MartinezContra Costa County CaliforniaUnited States North AmericayesV212942212942 VMammaliaEquuspacificusQuaternaryPleistoceneV71131Martinez Pleistocene GeneralContra Costa County CaliforniaUnited States North AmericayesV8677186771 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8677286772 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8677386773 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8677486774 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8677586775 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8677686776 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8677786777 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8677886778 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8677986779 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8678086780 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa CountyCaliforniaUnited StatesNorth AmericayesV8678186781 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8678286782 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County 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CaliforniaUnited States North AmericayesV8704387043 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8704487044 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8704587045 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8704687046 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa CountyCaliforniaUnited StatesNorth AmericayesV8704787047 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8704887048 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8704987049 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8705087050 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8705187051 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8705287052 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8705387053 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8705487054 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8705587055 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8705687056 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited StatesNorth AmericayesV8705787057VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8705887058 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8705987059 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County 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CaliforniaUnited States North AmericayesV8707787077VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8707887078 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8707987079 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8708087080 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8708187081 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8708287082 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8708387083 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8708487084 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8708587085 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VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8720587205 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8720687206VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8720787207 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8720887208 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8720987209 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8721087210 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8721187211 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8721287212 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County 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VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8722287222 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8722387223 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North Americayes V8722487224 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8722587225 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8722687226 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8722787227 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8722887228 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8722987229 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8723087230 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8723187231 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8723287232 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8723387233 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8723487234 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa CountyCaliforniaUnited StatesNorth AmericayesV8723587235 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8723687236 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8723787237 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8723887238 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8723987239 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8724087240 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8724187241 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8724287242 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8724387243 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8724487244 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa CountyCaliforniaUnited StatesNorth AmericayesV8724587245 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8724687246 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8724787247 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8724887248 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8724987249 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8725087250 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8725187251 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8725287252 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8725387253 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8725487254 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa CountyCaliforniaUnited StatesNorth AmericayesV8725587255 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8725687256 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8725787257 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8725887258 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8725987259 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8726087260 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8726187261 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8726287262 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8726387263 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8726487264 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa CountyCaliforniaUnited StatesNorth AmericayesV8726587265 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8726687266 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8726787267 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8726887268 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8726987269 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8727087270 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8727187271 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8727287272 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8727387273 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8727487274 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited StatesNorth AmericayesV8727587275VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8727687276 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8727787277 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8727887278 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8727987279 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8728087280 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8728187281 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8728287282 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8728387283 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8728487284 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited StatesNorth AmericayesV8728587285VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8728687286 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8728787287 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8728887288 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8728987289 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8729087290 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8729187291 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8729287292 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8729387293 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8729487294 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8729587295VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8729687296 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8729787297 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8729887298 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8729987299 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8730087300 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8730187301 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8730287302 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8730387303 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8730487304 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8730587305VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8730687306 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CaliforniaUnited States North AmericayesV8731587315VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8731687316 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8731787317 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8731887318 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8731987319 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8732087320 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8732187321 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8732287322 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8732387323 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CaliforniaUnited States North AmericayesV8733287332 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North Americayes V8733387333 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8733487334 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8733587335 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8733687336 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8733787337 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8733887338 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8733987339 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8734087340 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CaliforniaUnited States North AmericayesV8740087400 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8740187401 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8740287402 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8740387403 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8740487404VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8740587405 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8740687406 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8740787407 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8740887408 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8740987409 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8741087410 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8741187411 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8741287412 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8741387413 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8741487414VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8741587415 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8741687416 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8741787417 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8741887418 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8741987419 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8742087420 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8742187421 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8742287422 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8742387423 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8742487424VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8742587425 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8742687426 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8742787427 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8742887428 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8742987429 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8743087430 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8743187431 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8743287432 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8743387433 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8743487434 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8743587435 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8743687436 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8743787437 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8743887438 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8743987439 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8744087440 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8744187441 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North Americayes V8744287442 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8744387443 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8744487444 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8744587445 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8744687446 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8744787447 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8744887448 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8744987449 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8745087450 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8745187451 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8745287452 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa CountyCaliforniaUnited StatesNorth AmericayesV8745387453 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8745487454 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8745587455 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8745687456 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8745787457 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8745887458 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8745987459 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8746087460 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8746187461 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8746287462 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa CountyCaliforniaUnited StatesNorth AmericayesV8746387463 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8746487464 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8746587465 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8746687466 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8746787467 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8746887468 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8746987469 VMammaliaHypolagusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8747087470 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8747187471 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8747287472 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa CountyCaliforniaUnited StatesNorth AmericayesV8747387473 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8747487474 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8747587475 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8747687476 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8747787477 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8747887478 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8747987479 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8748087480 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8748187481 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8748287482 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa CountyCaliforniaUnited StatesNorth AmericayesV8748387483 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8748487484 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8748587485 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8748687486 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8748787487 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8748887488 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8748987489 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8749087490 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8749187491 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8749287492 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County 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VMammaliaTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8753887538 VMammaliaTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8753987539 VMammaliaTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8754087540 VMammaliaTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8754187541 VMammaliaCricetinaeTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8754287542 VMammaliaCricetinaeTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8754387543 VMammaliaCricetinaeTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8754487544 VMammaliaCricetinaeTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8754587545 VMammaliaCricetinaeTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States 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CaliforniaUnited States North AmericayesV8756387563 VMammaliaCricetinaeTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8756487564 VMammaliaCricetinaeTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8756587565 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8756687566 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8756787567 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8756887568 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8756987569 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8757087570 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States 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North AmericayesV8759587595 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8759687596 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8759787597 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8759887598 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8759987599 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8760087600 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8760187601 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited StatesNorth AmericayesV8760287602VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8760387603 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8760487604 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8760587605 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8760687606 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8760787607 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8760887608 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8760987609 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8761087610 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8761187611 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited StatesNorth AmericayesV8761287612VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8761387613 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8761487614 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8761587615 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8761687616 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8761787617 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8761887618 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8761987619 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8762087620 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8762187621 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8762287622VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8762387623 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8762487624 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8762587625 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8762687626 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8762787627 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8762887628 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8762987629 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8763087630 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8763187631 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8763287632VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8763387633 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8763487634 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8763587635 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8763687636 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8763787637 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8763887638 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8763987639 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8764087640 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8764187641 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8764287642VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8764387643 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8764487644 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8764587645 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8764687646 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8764787647 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8764887648 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8764987649 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8765087650 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8765187651 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8765287652 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8765387653 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8765487654 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8765587655 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8765687656 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8765787657 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8765887658 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8765987659 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North Americayes V8766087660 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8766187661 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8766287662 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8766387663 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8766487664 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8766587665 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8766687666 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8766787667 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8766887668 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8766987669 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8767087670 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa CountyCaliforniaUnited StatesNorth AmericayesV8767187671 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8767287672 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8767387673 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8767487674 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8767587675 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8767687676 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8767787677 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8767887678 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8767987679 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8768087680 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa CountyCaliforniaUnited StatesNorth AmericayesV8768187681 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8768287682 VMammaliaProtospermophilusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States 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CaliforniaUnited States North AmericayesV8778187781 VMammaliaOgmodontomys sawrockensisTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8778287782 VMammaliaOgmodontomys sawrockensisTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8778387783 VMammaliaOgmodontomys sawrockensisTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8778487784 VMammaliaOgmodontomys sawrockensisTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8778587785 VMammaliaOgmodontomys sawrockensisTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8778687786 VMammaliaOgmodontomys sawrockensisTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8778787787 VMammaliaOgmodontomys sawrockensisTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8778887788 VMammaliaOgmodontomys 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CaliforniaUnited States North AmericayesV8779687796 VMammaliaOgmodontomys sawrockensisTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8779787797 VMammaliaOgmodontomys sawrockensisTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8779887798 VMammaliaOgmodontomys sawrockensisTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8779987799 VMammaliaOgmodontomys sawrockensisTertiaryPlioceneV6869MaxumContra Costa CountyCaliforniaUnited StatesNorth AmericayesV8780087800 VMammaliaOgmodontomys sawrockensisTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8780187801 VMammaliaOgmodontomys sawrockensisTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8780287802 VMammaliaOgmodontomys sawrockensisTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8780387803 VMammaliaOgmodontomys 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CaliforniaUnited States North AmericayesV8784187841 VMammaliaOgmodontomys sawrockensisTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8784287842 VMammaliaOgmodontomys sawrockensisTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8784387843 VMammaliaOgmodontomys sawrockensisTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8784487844 VMammaliaOgmodontomys sawrockensisTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8784587845 VMammaliaOgmodontomys sawrockensisTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8784687846 VMammaliaOgmodontomys sawrockensisTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8784787847 VMammaliaOgmodontomys sawrockensisTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8784887848 VMammaliaOgmodontomys 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VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8792387923 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8792487924 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8792587925 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8792687926 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8792787927 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8792887928 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited StatesNorth AmericayesV8792987929VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV8793087930 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County 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North AmericayesV126756126756 VMammaliaScapanusPUBLTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV126757126757 VMammaliaScapanusPUBLTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV126758126758 VMammaliaScapanusPUBLTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV126759126759 VMammaliaScapanusPUBLTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV126760126760 VMammaliaScapanusPUBLTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV126761126761 VMammaliaScapanusPUBLTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV126762126762 VMammaliaScapanusPUBLTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV126763126763 VMammaliaScapanusPUBLTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV126764126764 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VMammaliaScapanusPUBLTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV126773126773 VMammaliaScapanusPUBLTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV126774126774 VMammaliaScapanusPUBLTertiaryPlioceneV6869MaxumContra Costa CountyCaliforniaUnited StatesNorth AmericayesV126775126775 VMammaliaScapanusPUBLTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV126776126776 VMammaliaScapanusPUBLTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV126777126777 VMammaliaScapanusPUBLTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV126778126778 VMammaliaScapanusPUBLTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV132038132038 VReptiliaClemmysmarmorataTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV399800399800 VMammaliaPeromyscusTertiaryPlioceneV6869MaxumContra Costa County CaliforniaUnited States North AmericayesV6608266082 VMammaliaTertiaryMioceneV6352Melvin'sContra Costa County CaliforniaUnited States North AmericayesV140425140425 VMammaliaGomphotheriumTertiaryMioceneV71158Mira LomaContra Costa County CaliforniaUnited States North AmericayesV5755957559 VMammaliaQuaternaryPleistoceneV6030Mokelumne Aqueduct No. 3,1Contra Costa County CaliforniaUnited States North AmericayesV212944212944 VMammaliaMammutamericanumQuaternaryPleistoceneV92081Mokelumne Pipe Ditch Contra Costa County CaliforniaUnited States North AmericayesV3841938419 VMammaliaOsteoborusTertiaryMioceneV4815Moore Ranch Contra Costa County CaliforniaUnited States North AmericayesM84158415 MPolythalameaFORAMINIFERATertiaryEoceneA1783Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesM84168416 MPolythalameaFORAMINIFERATertiaryEoceneA1783Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesM84178417 MPolythalameaFORAMINIFERATertiaryEoceneA1784Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesM84188418 MPolythalameaFORAMINIFERATertiaryEoceneA1784Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesM84198419 MPolythalameaFORAMINIFERATertiaryEoceneA1784Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesM84208420 MPolycystinaRADIOLARIATertiaryEoceneA1785Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesM84218421 MPolythalameaFORAMINIFERATertiaryEoceneA1787Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesM84228422 MPolythalameaFORAMINIFERATertiaryEoceneA1787Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesM98609860 MPolycystinaRADIOLARIATertiaryEoceneA1783Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesM98619861 MPolycystinaRADIOLARIATertiaryEoceneA1784Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesM98629862 MPolycystinaRADIOLARIATertiaryEoceneA1785Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesM98649864 MPolycystinaRADIOLARIATertiaryEoceneA1786Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesM4927149271 MPolycystinaSpongasteriscus cruciferusRadiolariansyntypeTertiaryEoceneA1787Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesM4927649276 MPolycystinaSpongasteriscus cruciferusRadiolariansyntypeTertiaryEoceneA1787Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesM4929149291 MPolycystinaSpongodiscus communisRadiolariansyntypeTertiaryEoceneA1787Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesM4929249292 MPolycystinaPorodiscusparvusRadiolarianholotypeTertiaryEoceneA1787Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesM4929449294 MPolycystinaSpongodiscus communisRadiolariansyntypeTertiaryEoceneA1787Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesM4929549295 MPolycystinaSpongodiscus communisRadiolariansyntypeTertiaryEoceneA1787Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesM4930749307 MPolycystinaHeliodiscuslinckiaformisRadiolarianholotypeTertiaryEoceneA1787Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesM4933449334 MPolycystinaDorylonchidium monxyphosbrachioxyphos RadiolarianholotypeTertiaryEoceneA1787Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesM4935349353 MPolycystinaPrunopyleoccidentalisRadiolarianholotypeTertiaryEoceneA1787Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesM4936449364 MPolycystinaStylosphaera hexaxyphophora pentaxyphophora var. RadiolariansyntypeTertiaryEoceneA1787Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesM4936749367 MPolycystinaAnthocyrtium byronenseRadiolariansyntypeTertiaryEoceneA1787Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesM4937549375 MPolycystinaClathrocyclas universauniversaRadiolariansyntypeTertiaryEoceneA1787Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesM4942649426 MPolycystinaLophophaena auriculaleporisRadiolariansyntypeTertiaryEoceneA1787Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesM4943049430 MPolycystinaLophoconustitanathericeraosRadiolariansyntypeTertiaryEoceneA1787Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesM4946649466 MPolycystinaDictyophimus babylonisRadiolariansyntypeTertiaryEoceneA1787Mt Diablo area S of AntiochContra Costa County CaliforniaUnited States North AmericayesI1209712097 ICephalopoda SchlueteriadiabloensisHolotypeCretaceousIP226Mt. DiabloContra Costa County CaliforniaUnited States North AmericayesM81798179 MPolythalameaFORAMINIFERATertiaryPaleoceneA1755Mt. DiabloContra Costa County CaliforniaUnited States North AmericayesM81808180 MPolythalameaFORAMINIFERATertiaryPaleoceneA1755Mt. DiabloContra Costa County CaliforniaUnited States North AmericayesM81878187 MPolythalameaFORAMINIFERATertiaryPaleoceneA1158Mt. DiabloContra Costa County CaliforniaUnited States North AmericayesM81888188 MPolythalameaFORAMINIFERATertiaryPaleoceneA1158Mt. DiabloContra Costa County CaliforniaUnited States North AmericayesM2315123151 MPolythalamea Siphogenerinoides clarkiFORAMINIFERACretaceousMF7649Mt. DiabloContra Costa County CaliforniaUnited States North AmericayesM2315223152 MPolythalameaSorted assemblage slide.CretaceousMF7650Mt. DiabloContra Costa County CaliforniaUnited States North AmericayesV4495044950 VMammaliaNannippustehonensisTertiaryMioceneV5509Mt. Diablo Country Club 1Contra Costa County CaliforniaUnited States North AmericayesV4495544955 VMammaliaHipparionTertiaryMioceneV5509Mt. Diablo Country Club 1Contra Costa County CaliforniaUnited States North AmericayesV4530545305 VMammaliaNannippustehonensisTertiaryMioceneV5509Mt. Diablo Country Club 1Contra Costa County CaliforniaUnited States North AmericayesV4530645306 VMammaliaHipparionTertiaryMioceneV5509Mt. Diablo Country Club 1Contra Costa County CaliforniaUnited States North AmericayesV4530745307 VMammaliaNannippusTertiaryMioceneV5509Mt. Diablo Country Club 1Contra Costa County CaliforniaUnited States North AmericayesV4531445314 VMammaliaNannippusTertiaryMioceneV5509Mt. Diablo Country Club 1Contra Costa County CaliforniaUnited States North AmericayesV4531545315 VMammaliaNannippusTertiaryMioceneV5509Mt. Diablo Country Club 1Contra Costa County CaliforniaUnited States North AmericayesV4531645316 VMammaliaNannippusTertiaryMioceneV5509Mt. Diablo Country Club 1Contra Costa County CaliforniaUnited States North AmericayesV4531745317 VMammaliaNannippusTertiaryMioceneV5509Mt. Diablo Country Club 1Contra Costa County CaliforniaUnited States North AmericayesV4531845318 VMammaliaNannippusTertiaryMioceneV5509Mt. Diablo Country Club 1Contra Costa County CaliforniaUnited States North AmericayesV4531945319 VMammaliaNannippusTertiaryMioceneV5509Mt. Diablo Country Club 1Contra Costa County CaliforniaUnited States North AmericayesV4532045320 VMammaliaTertiaryMioceneV5509Mt. Diablo Country Club 1Contra Costa County CaliforniaUnited States North AmericayesV4532645326 VMammaliaNannippusTertiaryMioceneV5509Mt. Diablo Country Club 1Contra Costa County CaliforniaUnited States North AmericayesV4532745327 VMammaliaNannippusTertiaryMioceneV5509Mt. Diablo Country Club 1Contra Costa County CaliforniaUnited States North AmericayesI1125911259 IEchinoideaSchizastercalifornicusNeotypeTertiaryOligocene3055‐MuirContra Costa County CaliforniaUnited States North AmericayesI1127311273 IGastropodaEpitoniumpinolensisHolotypeTertiaryOligocene3055‐MuirContra Costa County CaliforniaUnited States North AmericayesI1127411274 IGastropodaFusinuspinolianusHolotypeTertiaryOligocene3055‐MuirContra Costa County CaliforniaUnited States North AmericayesI1127511275 IGastropodaTurrisnomlandiHolotypeTertiaryOligocene3055‐MuirContra Costa County CaliforniaUnited States North AmericayesI1127611276 IGastropodaAmphissapulchrilineataHolotypeTertiaryOligocene3055‐MuirContra Costa County CaliforniaUnited States North AmericayesI1128611286 IGastropodaPseudoperissolax merriamiParatypeTertiaryOligocene3055‐MuirContra Costa County CaliforniaUnited States North AmericayesI1128711287 IGastropodaAmphissapulchrilineataParatypeTertiaryOligocene3055‐MuirContra Costa County CaliforniaUnited States North AmericayesI1128811288 IGastropodaEpitoniumsp. indet.HypotypeTertiaryOligocene3055‐MuirContra Costa County CaliforniaUnited States North AmericayesM7261.17261.1 MPolythalameaFORAMINIFERATertiaryEoceneA4132Muir StationContra Costa CountyCaliforniaUnited States North Americayes M76767676 MPolythalameaFORAMINIFERATertiaryEoceneA1772Muir Station Contra Costa County CaliforniaUnited States North AmericayesM76777677 MPolythalameaFORAMINIFERATertiaryEoceneA1772Muir Station Contra Costa County CaliforniaUnited States North AmericayesM76787678 MPolythalameaFORAMINIFERATertiaryEoceneA1773Muir Station Contra Costa County CaliforniaUnited States North AmericayesM76797679 MPolythalameaFORAMINIFERATertiaryEoceneA1773Muir Station Contra Costa County CaliforniaUnited States North AmericayesM76807680 MPolythalameaFORAMINIFERATertiaryEoceneA1774Muir Station Contra Costa County CaliforniaUnited States North AmericayesM76817681 MPolythalameaFORAMINIFERATertiaryEoceneA1774Muir Station Contra Costa County CaliforniaUnited States North AmericayesM76827682 MPolythalameaFORAMINIFERATertiaryEoceneA1775Muir Station Contra Costa County CaliforniaUnited States North AmericayesM76837683 MPolythalameaFORAMINIFERATertiaryEoceneA1775Muir Station Contra Costa County CaliforniaUnited States North AmericayesM76847684 MPolythalameaFORAMINIFERATertiaryEoceneA1777Muir Station Contra Costa CountyCaliforniaUnited States North AmericayesM76857685 MPolythalameaFORAMINIFERATertiaryEoceneA1779Muir Station Contra Costa County CaliforniaUnited States North AmericayesM76867686 MPolythalameaFORAMINIFERATertiaryEoceneA1779Muir Station Contra Costa County CaliforniaUnited States North AmericayesM76877687 MPolythalameaFORAMINIFERATertiaryEoceneA1781Muir Station Contra Costa County CaliforniaUnited States North AmericayesM76887688 MPolythalameaFORAMINIFERATertiaryEoceneA1781Muir Station Contra Costa County CaliforniaUnited States North AmericayesM8386.18386.1 MPolythalameaFORAMINIFERATertiaryEoceneA6673Muir Station Contra Costa County CaliforniaUnited States North AmericayesM8386.28386.2 MPolythalameaFORAMINIFERATertiaryEoceneA6674Muir Station Contra Costa County CaliforniaUnited States North AmericayesM8386.38386.3 MPolythalameaFORAMINIFERATertiaryEoceneA6675Muir Station Contra Costa County CaliforniaUnited States North AmericayesM83878387 MPolythalameaFORAMINIFERATertiaryEoceneA6668Muir Station Contra Costa County CaliforniaUnited States North AmericayesM83888388 MPolythalameaFORAMINIFERATertiaryEoceneA6669Muir StationContra Costa County CaliforniaUnited States North AmericayesM1624416244 MPolythalamea NonionFORAMINIFERA.TertiaryEoceneA6688Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2290522905 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF7556Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2291722917 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF7563Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2292122921 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF7566Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2293322933 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF7574Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2293422934 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF7575Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2293622936 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF7576Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2293722937 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF7575Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2293822938 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF7576Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2294022940 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF7576Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2294122941 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF7575Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2295322953 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF7587Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2295422954 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF7587Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2304823048 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF7587Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2427124271 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF8242Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2427224272 MPolythalameaFORAMINIFERA. Sorted Assemblage.MF8285Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2427324273 MPolythalameaFORAMINIFERA. Sorted Assemblage.TertiaryEoceneMF8281Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2427424274 MTertiaryEoceneMF8245Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2427524275 MTertiaryEoceneMF8245Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2427624276 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF8246Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2427724277 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF8242Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2427824278 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF8246Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2427924279 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF8242Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2428024280 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF8246Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2428124281 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF8246Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2428224282 MPolythalameaFORAMINIFERA. Sorted Assemblage.TertiaryEoceneMF8284Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2428324283 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF8246Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2428424284 MPolythalameaFORAMINIFERA. Sorted Assemblage.TertiaryEoceneMF8283Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2428524285 MPolythalameaFORAMINIFERA. Sorted Assemblage.TertiaryEoceneMF8282Muir Station Contra Costa County CaliforniaUnited States North AmericayesM2428624286 MTertiaryEoceneMF8245Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4000340003 MPolythalamea ReophaxFORAMINIFERA hypotypeTertiaryEoceneA6686Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4001340013 MPolythalamea Cyclammina incisaFORAMINIFERA. OD = Haplophragmium incisum Stache.hypotypeTertiaryEoceneA6684Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4001640016 MPolythalamea TextulariamississippiensisFORAMINIFERA hypotypeTertiaryEoceneA6683Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4001840018 MPolythalamea TextulariaadaltaFORAMINIFERA hypotypeTertiaryEoceneA6686Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4002140021 MPolythalamea TextulariaFORAMINIFERA. hypotypeTertiaryEoceneA6686Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4002240022 MPolythalamea GaudryinalaevigataFORAMINIFERA hypotypeTertiaryEoceneA6671Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4002540025 MPolythalamea GaudryinaFORAMINIFERA hypotypeTertiaryEoceneA6678Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4002640026 MPolythalamea GaudryinaFORAMINIFERA hypotypeTertiaryEoceneA6686Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4003040030 MPolythalamea DorothiaFORAMINIFERA hypotypeTertiaryEoceneA6673Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4003840038 MPolythalamea Spiroloculina lamposaFORAMINIFERA hypotypeTertiaryEoceneA6690Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4004240042 MPolythalamea Trochammina globigeriniformisFORAMINIFERA. OD = Lituola nautiloidea var. globigerinaformis Parker & Jones.hypotypeTertiaryEoceneA6687Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4004540045 MPolythalamea RobuluschambersiFORAMINIFERA hypotypeTertiaryEoceneA6683Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4004840048 MPolythalamea RobulusconvergensFORAMINIFERA. OD = Cristellaria convergens Bornemann.hypotypeTertiaryEoceneA6688Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4004940049 MPolythalamea RobulusinornatusFORAMINIFERA. OD = Robulina inornata Orbigny.hypotypeTertiaryEoceneA6668Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4005340053 MPolythalamea RobulusinornatusFORAMINIFERA. OD = Robulina inornata Orbigny.hypotypeTertiaryEoceneA6685Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4005440054 MPolythalamea RobulusinornatusFORAMINIFERA. OD = Robulina inornata Orbigny.hypotypeTertiaryEoceneA6685Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4005540055 MPolythalamea RobuluskincaidiFORAMINIFERA hypotypeTertiaryEoceneA6669Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4005640056 MPolythalamea RobuluspseudovortexFORAMINIFERA hypotypeTertiaryEoceneA6674Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4005740057 MPolythalamea RobuluspseudovortexFORAMINIFERA hypotypeTertiaryEoceneA6676Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4005840058 MPolythalamea RobulusterryiFORAMINIFERA hypotypeTertiaryEoceneA6669Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4006040060 MPolythalamea RobuluswelchiFORAMINIFERA hypotypeTertiaryEoceneA6691Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4006140061 MPolythalamea RobuluswelchiFORAMINIFERA hypotypeTertiaryEoceneA6691Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4006340063 MPolythalamea RobuluswilliamsoniFORAMINIFERA. OD = Cristellaria williamsoni Reuss.hypotypeTertiaryEoceneA6688Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4006740067 MPolythalamea LenticulinathetaFORAMINIFERA hypotypeTertiaryEoceneA6669Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4007140071 MPolythalamea MarginulinabullataaugensFORAMINIFERA. OD = Cristellaria beali Cushman.hypotypeTertiaryEoceneA6669Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4007340073 MPolythalamea MarginulinaFORAMINIFERA. hypotypeTertiaryEoceneA6683Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4007440074 MPolythalamea Vaginulinopsis fragariatexasensisFORAMINIFERA. OD = Cristellaria fragaria var. texasensis Cushman & Applin.hypotypeTertiaryEoceneA6686Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4007640076 MPolythalamea Vaginulinopsis saundersiFORAMINIFERA. OD = Cristellaria saundersi Hanna & Hanna.hypotypeTertiaryEoceneA6667Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4007840078 MPolythalamea Vaginulinopsis saundersiFORAMINIFERA. OD = Cristellaria saundersi Hanna & Hanna.hypotypeTertiaryEoceneA6674Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4008140081 MPolythalamea Vaginulinopsis vacavillensisFORAMINIFERA. OD = Cristellaria vacavillenis.hypotypeTertiaryEoceneA6685Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4008240082 MPolythalamea Vaginulinopsis vacavillensisFORAMINIFERA. OD = Cristellaria vacavillensis.hypotypeTertiaryEoceneA6673Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4008340083 MPolythalamea Vaginulinopsis vacavillensisFORAMINIFERA. OD = Cristellaria vacavillensis.hypotypeTertiaryEoceneA6676Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4008540085 MPolythalamea VaginulinopsisFORAMINIFERA. hypotypeTertiaryEoceneA6668Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4008740087 MPolythalamea DentalinacommunisFORAMINIFERA. OD = Nodosaria (Dentaline) communis Orbigny.hypotypeTertiaryEoceneA6685Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4008940089 MPolythalamea DentalinaspinosaornataFORAMINIFERA holotypeTertiaryEoceneA6690Muir Station Contra Costa County CaliforniaUnited States North America 0000 0000 0405 0982 yesM4009140091 MPolythalamea DentalinaFORAMINIFERA. hypotypeTertiaryEoceneA6676Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4009440094 MPolythalamea NodosariaarundineaFORAMINIFERA hypotypeTertiaryEoceneA6686Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4009640096 MPolythalamea NodosariaconsobrinaFORAMINIFERA. OD = Dentalina consobrina Orbigny.hypotypeTertiaryEoceneA6667Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4009840098 MPolythalamea NodosariadeliciaemuirensisFORAMINIFERA holotypeTertiaryEoceneA6683Muir Station Contra Costa County CaliforniaUnited States North America 0000 0000 0405 1686 yesM4009940099 MPolythalamea NodosariadeliciaemuirensisFORAMINIFERA paratypeTertiaryEoceneA6683Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4010040100 MPolythalamea NodosarialatejugataFORAMINIFERA hypotypeTertiaryEoceneA6675Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4010140101 MPolythalamea NodosariaFORAMINIFERA hypotypeTertiaryEoceneA6669Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4011140111 MPolythalamea LagenacostataFORAMINIFERA. OD = Entosolenia costata WilliamsonhypotypeTertiaryEoceneA6680Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4011440114 MPolythalamea GuttulinaFORAMINIFERA hypotypeTertiaryEoceneA6668Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4011740117 MPolythalamea GlobulinaFORAMINIFERA hypotypeTertiaryEoceneA6683Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4011840118 MPolythalamea NonionappliniFORAMINIFERA hypotypeTertiaryEoceneA6682Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4011940119 MPolythalamea NoniongrateloupiiFORAMINIFERA. OD = Nonionina grateloupii Orbigny.hypotypeTertiaryEoceneA6681Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4012040120 MPolythalamea NonionhalkyardiFORAMINIFERA hypotypeTertiaryEoceneA6689Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4012140121 MPolythalamea NonionhavanenseFORAMINIFERA hypotypeTertiaryEoceneA6688Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4012240122 MPolythalamea NonionellafrankeiFORAMINIFERA hypotypeTertiaryEoceneA6677Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4012440124 MPolythalamea ElphidiumsmithiFORAMINIFERA hypotypeTertiaryEoceneA6681Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4012540125 MPolythalamea AmphimorphinaFORAMINIFERA hypotypeTertiaryEoceneA6691Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4012640126 MPolythalamea UvigerinalodoensisFORAMINIFERA hypotypeTertiaryEoceneA6667Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4013140131 MPolythalamea Nodogenerina kressenbergensisFORAMINIFERA. OD = Nodosaria kressenbergensis Guembel.hypotypeTertiaryEoceneA6690Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4013540135 MPolythalamea NodogenerinaFORAMINIFERA. hypotypeTertiaryEoceneA6691Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4013740137 MPolythalamea BuliminaalazanensisFORAMINIFERA hypotypeTertiaryEoceneA6687Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4014140141 MPolythalamea BuliminalirataFORAMINIFERA hypotypeTertiaryEoceneA6690Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4014240142 MPolythalamea BuliminapupoidesFORAMINIFERA hypotypeTertiaryEoceneA6680Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4014440144 MPolythalameaa BuliminawhiteiFORAMINIFERA hypotypeTertiaryEoceneA6680Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4014740147 MPolythalamea VirgulinaFORAMINIFERA. hypotypeTertiaryEoceneA6688Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4014840148 MPolythalamea BolivinamexicanaFORAMINIFERA hypotypeTertiaryEoceneA6691Muir Station Contra Costa County CaliforniaUnited States North Americayes M4015140151 MPolythalamea UvigerinagardneraeFORAMINIFERA. hypotypeTertiaryEoceneA6691Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4015240152 MPolythalamea Uvigerinagardneraepachecoensis FORAMINIFERA holotypeTertiaryEoceneA6690Muir Station Contra Costa County CaliforniaUnited States North America 0000 0000 0405 1725 yesM4015340153 MPolythalamea Uvigerinagardneraepachecoensis FORAMINIFERA paratypeTertiaryEoceneA6690Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4015440154 MPolythalamea Uvigerinagardneraepachecoensis FORAMINIFERA paratypeTertiaryEoceneA6690Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4015540155 MPolythalamea Uvigerinagardneraepachecoensis FORAMINIFERA hypotypeTertiaryEoceneA6691Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4015640156 MPolythalamea UvigerinagarzaensisFORAMINIFERA hypotypeTertiaryEoceneA6689Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4015740157 MPolythalamea UvigerinayazooensisFORAMINIFERA hypotypeTertiaryEoceneA6689Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4016040160 MPolythalamea UvigerinaFORAMINIFERA. hypotypeTertiaryEoceneA6674Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4016240162 MPolythalamea Pleurostomella acutaFORAMINIFERA hypotypeTertiaryEoceneA6688Muir Station Contra Costa County CaliforniaUnited StatesNorth AmericayesM4016640166MPolythalamea ValvulineriachiranaFORAMINIFERA hypotypeTertiaryEoceneA6689Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4017040170 MPolythalamea GyroidinaorbicularisobliquataFORAMINIFERA. hypotypeTertiaryEoceneA6680Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4017140171 MPolythalamea Gyroidinasoldaniioctocamerata FORAMINIFERA. hypotypeTertiaryEoceneA6680Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4017640176 MPolythalamea EponideslodoensismartiniFORAMINIFERA. paratypeTertiaryEoceneA6680Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4017940179 MPolythalamea ParrellaFORAMINIFERA hypotypeTertiaryEoceneA6683Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4018140181 MPolythalamea EponidesumbonataFORAMINIFERA. OD = Rotalina umbonata Reuss.hypotypeTertiaryEoceneA6688Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4018640186 MPolythalamea SiphoninaFORAMINIFERA. hypotypeTertiaryEoceneA6667Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4018740187 MPolythalamea CancrismalloryiFORAMINIFERA holotypeTertiaryEoceneA6689Muir Station Contra Costa County CaliforniaUnited States North America 0000 0000 0405 0933 yesM4018840188 MPolythalamea CancrismalloryiFORAMINIFERA paratypeTertiaryEoceneA6689Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4018940189 MPolythalamea AsterigerinacrassaformisFORAMINIFERA hypotypeTertiaryEoceneA6688Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4019040190 MPolythalamea AsterigerinacrassaformisFORAMINIFERA hypotypeTertiaryEoceneA6688Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4019240192 MPolythalamea CassidulinaglobosaFORAMINIFERA hypotypeTertiaryEoceneA6688Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4019640196 MPolythalamea PulleniaFORAMINIFERA hypotypeTertiaryEoceneA6690Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4019740197 MPolythalamea GlobigerinadeceptaFORAMINIFERA hypotypeTertiaryEoceneA6669Muir Station Contra Costa County CaliforniaUnited StatesNorth AmericayesM4019940199MPolythalamea GlobigerinatriloculinoidesFORAMINIFERA hypotypeTertiaryEoceneA6685Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4020040200 MPolythalamea GlobigerinatriloculinoidesFORAMINIFERA hypotypeTertiaryEoceneA6680Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4020140201 MPolythalamea Globorotalia aragonensisFORAMINIFERA hypotypeTertiaryEoceneA6671Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4020940209 MPolythalamea AnomalinacanimarensisFORAMINIFERA hypotypeTertiaryEoceneA6686Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4021340213 MPolythalamea AnomalinareginaminorFORAMINIFERA. holotypeTertiaryEoceneA6690Muir Station Contra Costa County CaliforniaUnited States North America 0000 0000 0405 0905 yesM4021440214 MPolythalamea AnomalinareginaminorFORAMINIFERA. hypotypeTertiaryEoceneA6689Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4021540215 MPolythalamea AnomalinaFORAMINIFERA. hypotypeTertiaryEoceneA6680Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4021740217 MPolythalamea CibicidescushmaniFORAMINIFERA. OD = Cibicides floridanus var. cushmani Barbat & Estorff.hypotypeTertiaryEoceneA6691Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4021840218 MPolythalamea CibicideseponidiformisFORAMINIFERA hypotypeTertiaryEoceneA6676Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4022040220 MPolythalamea Cibicideseponidiformis carinataFORAMINIFERA holotypeTertiaryEoceneA6676Muir Station Contra Costa County CaliforniaUnited States North America 0000 0000 0405 0940 yesM4022140221 MPolythalamea Cibicideseponidiformis carinataFORAMINIFERA paratypeTertiaryEoceneA6676Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4022240222 MPolythalamea CibicidesmartinezensisFORAMINIFERA. hypotypeTertiaryEoceneA6688Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4022340223 MPolythalamea Cibicidesmartinezensis malloryiFORAMINIFERA. holotypeTertiaryEoceneA6688Muir Station Contra Costa County CaliforniaUnited States North America 0000 0000 0405 0958 yesM4022540225 MPolythalamea Cibicidesouachitaensis alhambrensis FORAMINIFERA holotypeTertiaryEoceneA6688Muir Station Contra Costa County CaliforniaUnited States North America 0000 0000 0405 0959 yesM4022640226 MPolythalamea Cibicidesouachitaensis alhambrensis FORAMINIFERA paratypeTertiaryEoceneA6688Muir Station Contra Costa County CaliforniaUnited StatesNorth AmericayesM4023040230MPolythalamea CibicidesFORAMINIFERA hypotypeTertiaryEoceneA6667Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4023340233 MPolythalamea CibicidoidescoalingensisFORAMINIFERA. OD = Anomalina coalingensis Cushman & Hanna.hypotypeTertiaryEoceneA6668Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4023440234 MPolythalamea CibicidoidescoalingensisFORAMINIFERA. OD = Anomalina coalingensis Cushman & Hanna.hypotypeTertiaryEoceneA6676Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4023540235 MPolythalamea CibicidoidescoalingensisFORAMINIFERA. OD = Anomalina coalingensis Cushman & Hanna.hypotypeTertiaryEoceneA6676Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4023840238 MPolythalamea CibicidoidesvenezuelanaFORAMINIFERA. OD = Cibicides venezuelana Nuttall.hypotypeTertiaryEoceneA6686Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4024840248 MPolythalameaFORAMINIFERA.TertiaryEoceneMF6705Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4025040250 MPolythalameaFORAMINIFERA.TertiaryEoceneMF6705Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4510145101 MChiphragmalithus acanthodesCalcareous nannoplanktonhypotypeTertiaryEoceneA6686Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4511245112 MChiphragmalithus cristatusCalcareous nannoplankton. OD = Trochaster cristatus Martini.hypotypeTertiaryEoceneA6685Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4513445134 MDiscolithusdistinctusCalcareous nannoplanktonhypotypeTertiaryEoceneA6667Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4513545135 MDiscolithusdistinctusCalcareous nannoplanktonhypotypeTertiaryEoceneA6674Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4513645136 MDiscolithusdistinctusCalcareous nannoplanktonhypotypeTertiaryEoceneA6676Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4513945139 MDiscolithusexilisCalcareous nannoplanktonhypotypeTertiaryEoceneA6671Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4514245142 MDiscolithusfimbriatusCalcareous nannoplanktonhypotypeTertiaryEoceneA6677Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4514445144 MDiscolithuspulcherCalcareous nannoplanktonhypotypeTertiaryEoceneA6674Muir Station Contra Costa County CaliforniaUnited States North AmericayesM4519245192 MDiscoasterlodoensisCalcareous nannoplanktonhypotypeTertiaryEoceneA6688Muir Station Contra Costa County CaliforniaUnited States North AmericayesV6259062590 VOsteichthyesTertiaryEoceneV75095Muir Station Contra Costa County CaliforniaUnited States North AmericayesV1000110001 VChondrichthyes IsurusCretaceousLate Cretaceous V75023Muir Station W Contra Costa County CaliforniaUnited States North AmericayesV1000210002 VChondrichthyes SqualischiconisTYPECretaceousLate Cretaceous V75023Muir Station W Contra Costa County CaliforniaUnited States North AmericayesV1000310003 VOsteichthyes PhareodusCretaceousLate Cretaceous V75023Muir Station W Contra Costa County CaliforniaUnited States North AmericayesV3289032890 VMammaliaFIGTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3289132891 VMammaliaFIGTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3290632906 VAvesTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited StatesNorth AmericayesV3290732907VMammaliaHypolagusFIGTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3290832908 VReptiliaCryptodiraTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3290932909 VMammaliaPUBLTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3291032910 VMammaliaPUBLTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3291132911 VMammaliaFIGTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3291232912 VMammaliaTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3291332913 VMammaliaPliohippusspectansPUBLTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3291632916 VMammaliaTeleocerasPUBLTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3292032920 VMammaliaPliohippusTertiaryMioceneV3611Mulholland 2Contra Costa County CaliforniaUnited States North AmericayesV3299432994 VMammaliaFIGTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3299532995 VMammaliaPliohippusspectansPUBLTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3299632996 VMammaliaFIGTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3299732997 VMammaliaTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3299832998 VMammaliaPliohippusspectansPUBLTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3304533045 VMammaliaTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3304633046 VMammaliaPliohippusspectansFIGTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3307933079 VMammaliaFIGTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3310033100 VMammaliaNannippusFIGTertiaryMioceneV3611Mulholland 2Contra Costa County CaliforniaUnited States North AmericayesV3394233942 VMammaliaHipparionTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3394333943 VMammaliaHypolagusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3445034450 VMammaliaDesmostylusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3602936029 VMammaliaTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3603036030 VMammaliaPliotomodon primitivusTYPETertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3604136041 VMammaliaCupidinimusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3753437534 VMammaliaPliotomodon primitivusPUBLTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3753737537 VMammaliaPliohippusTertiaryMioceneV3611Mulholland 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV3753837538 VMammaliaTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3753937539 VMammaliaDipoidesTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3754037540 VMammaliaPliohippusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3754137541 VMammaliaHipparionTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3754237542 VMammaliaTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3754337543 VMammaliaHypolagusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3754437544 VMammaliaHypolagusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3754537545 VMammaliaHypolagusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3754637546 VMammaliaHypolagusTertiaryMioceneV3611Mulholland 2Contra Costa County CaliforniaUnited States North AmericayesV3754737547 VMammaliaTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3754837548 VMammaliaTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3754937549 VMammaliaTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3755037550 VMammaliaTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3755137551 VMammaliaTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3755237552 VMammaliaTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3755337553 VMammaliaTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3755437554 VMammaliaTertiaryMioceneV3611Mulholland 2Contra Costa County CaliforniaUnited States North AmericayesV3755537555 VMammaliaTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3755637556 VMammaliaTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3756137561 VMammaliaTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3756237562 VMammaliaPliohippusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3756337563 VMammaliaTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North Americayes V3756437564 VMammaliaHypolagusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3756537565 VMammaliaTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3756637566 VMammaliaProsthennopsTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3756737567 VMammaliaProsthennopsTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3756837568 VMammaliaTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3762337623 VMammaliaPeromyscusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3762437624 VMammaliaPeromyscusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3762537625 VMammaliaTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3762637626 VMammaliaTertiaryMioceneV3611Mulholland 2 Contra Costa CountyCaliforniaUnited States North AmericayesV3763237632 VMammaliaPliotomodon primitivusPUBLTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3763337633 VMammaliaPliotomodon primitivusPUBLTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV3766137661 VMammaliaPilosaTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV4030340303 VMammaliaPeromyscusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV4030440304 VMammaliaPeromyscusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV4030540305 VMammaliaHypolagusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV4030640306 VMammaliaTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV5775157751 VMammaliaTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV6520265202 VMammaliaTertiaryMioceneV3611Mulholland 2Contra Costa County CaliforniaUnited States North AmericayesV6710267102 VMammaliaPeromyscusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV6710367103 VMammaliaPeromyscusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV6710467104 VMammaliaPeromyscusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV6710567105 VMammaliaPeromyscusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV6710667106 VMammaliaPeromyscusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV6710767107 VMammaliaPeromyscusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV6710867108 VMammaliaPeromyscusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV6710967109 VMammaliaPeromyscusTertiaryMioceneV3611Mulholland 2 Contra Costa CountyCaliforniaUnited States North AmericayesV8171081710 VMammaliaOsteoborusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV8171181711 VMammaliaPliosaccomysTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV8171281712 VMammaliaTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV8171381713 VMammaliaPeromyscuspliocaenicusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV8171481714 VMammaliaPeromyscuspliocaenicusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV8171581715 VMammaliaPeromyscuspliocaenicusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV8171681716 VMammaliaPeromyscuspliocaenicusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV8171781717 VMammaliaPeromyscuspliocaenicusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV8171881718 VMammaliaPeromyscuspliocaenicusTertiaryMioceneV3611Mulholland 2Contra Costa County CaliforniaUnited States North AmericayesV8171981719 VMammaliaPeromyscuspliocaenicusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV8172081720 VMammaliaPeromyscuspliocaenicusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV8172181721 VMammaliaPeromyscuspliocaenicusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV8172281722 VMammaliaPeromyscuspliocaenicusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV8172381723 VMammaliaPeromyscuspliocaenicusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV8172481724 VMammaliaPeromyscuspliocaenicusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV8172581725 VMammaliaPeromyscuspliocaenicusTertiaryMioceneV3611Mulholland 2 Contra Costa County CaliforniaUnited States North AmericayesV8172681726 VMammaliaPliohippusTertiaryMioceneV3611Mulholland 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV3756037560 VReptiliaCryptodiraTertiaryMioceneV3862Mulholland 3 Contra Costa County CaliforniaUnited States North AmericayesV4986849868 VMammaliaTertiaryMioceneV3862Mulholland 3 Contra Costa County CaliforniaUnited States North AmericayesV4986949869 VMammaliaEutheriaTertiaryMioceneV3862Mulholland 3 Contra Costa County CaliforniaUnited States North AmericayesV4987049870 VMammaliaEutheriaTertiaryMioceneV3862Mulholland 3 Contra Costa County CaliforniaUnited States North AmericayesV3881638816 VMammaliaNannippusTertiaryMioceneV4858Mulholland 4 Contra Costa County CaliforniaUnited States North AmericayesV3996539965 VMammaliaPliohippusTertiaryMioceneV4858Mulholland 4 Contra Costa County CaliforniaUnited States North AmericayesV3972139721 VMammaliaPliohippusTertiaryMioceneV4955Mulholland 5 Contra Costa County CaliforniaUnited States North AmericayesV6455864558 VMammaliaMegatylopusTertiaryMioceneV65510Mulholland Fm General Contra Costa CountyCaliforniaUnited States North AmericayesV4282742827 VMammaliaTertiaryMioceneV5271Mulholland Hill Contra Costa County CaliforniaUnited States North AmericayesP151883151883 PMagnoliopsida QuercusTertiaryMioceneP386Mulholland N CAL Contra Costa County CaliforniaUnited States North AmericayesP151892151892 PMagnoliopsida QuercusorindensisTertiaryMioceneP386Mulholland N CAL Contra Costa County CaliforniaUnited States North AmericayesP151893151893 PMagnoliopsida QuercusorindensisTertiaryMioceneP386Mulholland N CAL Contra Costa County CaliforniaUnited States North AmericayesM2166821668 MPolythalamea NonionmediocostatumFORAMINIFERA. OD = Nonionina medio‐costata Cushman.TertiaryMioceneMF7915Near Lawson Hill Contra Costa County CaliforniaUnited States North AmericayesM2168821688 MPolythalamea GyroidinasoldaniirotundimargoFORAMINIFERA. OD = Gyroidina soldanii var. rotundimargo.TertiaryMioceneMF7914Near Lawson Hill Contra Costa County CaliforniaUnited States North AmericayesM2188821888 MPolythalamea BolivinaadvenaornataFORAMINIFERA. OD = Bolivina advena var. ornata.TertiaryMioceneMF7915Near Lawson Hill Contra Costa County CaliforniaUnited States North AmericayesM2188921889 MPolythalamea BolivinaadvenastriatellaFORAMINIFERA.TertiaryMioceneMF7915Near Lawson Hill Contra Costa County CaliforniaUnited States North AmericayesM2189421894 MPolythalamea BuliminellasubfusiformisFORAMINIFERA.TertiaryMioceneMF7915Near Lawson Hill Contra Costa County CaliforniaUnited States North AmericayesM2189621896 MPolythalamea BuliminellacalifornicaFORAMINIFERA.TertiaryMioceneMF7915Near Lawson Hill Contra Costa County CaliforniaUnited States North AmericayesM2189721897 MPolythalamea BuliminellacurtaFORAMINIFERA.TertiaryMioceneMF7914Near Lawson Hill Contra Costa County CaliforniaUnited States North AmericayesM2190821908 MPolythalamea Pulvinulinella subperuvianaFORAMINIFERA.TertiaryMioceneMF7915Near Lawson Hill Contra Costa County CaliforniaUnited States North AmericayesM2191421914 MPolythalamea NonioncostiferumFORAMINIFERA. OD = Nonionina costifera.TertiaryMioceneMF7915Near Lawson Hill Contra Costa County CaliforniaUnited States North AmericayesM2192121921 MPolythalamea RobulussmileyiFORAMINIFERATertiaryMioceneMF7915Near Lawson Hill Contra Costa County CaliforniaUnited States North AmericayesM2238422384 MPolythalamea ValvulineriacalifornicaobesaFORAMINIFERA. OD = Valvulineria californica var. obesa Cushman.TertiaryMioceneMF7915Near Lawson Hill Contra Costa County CaliforniaUnited States North AmericayesM2238522385 MPolythalamea UvigerinellacalifornicaFORAMINIFERA. OD = Uvigerina (Uvigerinella) californica Cushman.TertiaryMioceneMF7914Near Lawson Hill Contra Costa County CaliforniaUnited States North AmericayesM2238622386 MPolythalamea ValvulineriacalifornicacalifornicaFORAMINIFERATertiaryMioceneMF7915Near Lawson Hill Contra Costa County CaliforniaUnited States North AmericayesM76937693 MPolycystinaRADIOLARIA: Unsorted AssemblageTertiaryEoceneA2968Near ridge top, E side Hill 356Contra Costa County CaliforniaUnited States North AmericayesM76947694 MPolycystinaRADIOLARIATertiaryEoceneA2968Near ridge top, E side Hill 356Contra Costa County CaliforniaUnited States North AmericayesM76957695 MPolycystinaRADIOLARIATertiaryEoceneA2968Near ridge top, E side Hill 356Contra Costa County CaliforniaUnited States North AmericayesM76967696 MPolycystinaRADIOLARIA: Unsorted AssemblageTertiaryEoceneA2968Near ridge top, E side Hill 356Contra Costa County CaliforniaUnited States North AmericayesM76977697 MPolycystinaRADIOLARIA: Unsorted AssemblageTertiaryEoceneA2968Near ridge top, E side Hill 356Contra Costa County CaliforniaUnited States North AmericayesM76987698 MPolycystinaRADIOLARIA: Unsorted AssemblageTertiaryEoceneA2968Near ridge top, E side Hill 356Contra Costa County CaliforniaUnited States North AmericayesM76997699 MPolycystinaRADIOLARIATertiaryEoceneA2968Near ridge top, E side Hill 356Contra Costa County CaliforniaUnited States North AmericayesM77007700 MPolycystinaRADIOLARIATertiaryEoceneA2968Near ridge top, E side Hill 356Contra Costa County CaliforniaUnited States North AmericayesM77017701 MPolycystinaRADIOLARIATertiaryEoceneA2968Near ridge top, E side Hill 356Contra Costa County CaliforniaUnited States North AmericayesM77027702 MPolycystinaRADIOLARIATertiaryEoceneA2968Near ridge top, E side Hill 356Contra Costa County CaliforniaUnited States North AmericayesM77037703 MPolycystinaRADIOLARIATertiaryEoceneA2968Near ridge top, E side Hill 356Contra Costa County CaliforniaUnited States North AmericayesM77047704 MPolycystinaRADIOLARIATertiaryEoceneA2968Near ridge top, E side Hill 356Contra Costa County CaliforniaUnited States North AmericayesM77057705 MPolycystinaRADIOLARIATertiaryEoceneA2968Near ridge top, E side Hill 356Contra Costa County CaliforniaUnited States North AmericayesM77067706 MPolycystinaRADIOLARIATertiaryEoceneA2968Near ridge top, E side Hill 356Contra Costa County CaliforniaUnited States North AmericayesM77077707 MPolycystinaRADIOLARIATertiaryEoceneA2968Near ridge top, E side Hill 356Contra Costa County CaliforniaUnited States North AmericayesM77087708 MPolycystinaRADIOLARIATertiaryEoceneA2968Near ridge top, E side Hill 356Contra Costa County CaliforniaUnited States North AmericayesM77097709 MPolycystinaRADIOLARIATertiaryEoceneA2968Near ridge top, E side Hill 356Contra Costa County CaliforniaUnited States North AmericayesM77107710 MPolycystinaRADIOLARIATertiaryEoceneA2968Near ridge top, E side Hill 356Contra Costa County CaliforniaUnited States North AmericayesM77117711 MPolycystinaRADIOLARIATertiaryEoceneA2968Near ridge top, E side Hill 356Contra Costa County CaliforniaUnited States North AmericayesM77127712 MPolycystinaRADIOLARIATertiaryEoceneA2968Near ridge top, E side Hill 356Contra Costa County CaliforniaUnited States North AmericayesM77137713 MPolycystinaRADIOLARIATertiaryEoceneA2968Near ridge top, E side Hill 356Contra Costa County CaliforniaUnited States North AmericayesM77147714 MPolycystinaRADIOLARIATertiaryEoceneA2968Near ridge top, E side Hill 356Contra Costa County CaliforniaUnited States North AmericayesM77157715 MPolycystinaRADIOLARIATertiaryEoceneA2968Near ridge top, E side Hill 356Contra Costa County CaliforniaUnited States North AmericayesM66916691 MPolythalamea SpiroplectoidesFORAMINIFERACretaceousLate Cretaceous D1738Near SelbyContra Costa County CaliforniaUnited States North AmericayesV3460034600 VMammaliaHipparionTertiaryMioceneV3920Newman'sContra Costa County CaliforniaUnited States North AmericayesV6780967809 VMammaliaTertiaryMioceneV6106Nimitz WayContra Costa County CaliforniaUnited States North AmericayesV9967199671 VMammaliaProterixloomisiTYPETertiaryMioceneV6106Nimitz WayContra Costa County CaliforniaUnited States North AmericayesM2294222942 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF7578Nojoqui Creek Contra Costa County CaliforniaUnited States North AmericayesV2984829848 VMammaliaTertiaryMioceneV3405Norris Canyon 1 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VMammaliaThomomysbottaeQuaternaryPleistoceneV71003Northern Cove Contra Costa County CaliforniaUnited States North AmericayesV9400394003 VMammaliaThomomysbottaeQuaternaryPleistoceneV71003Northern CoveContra Costa County CaliforniaUnited States North AmericayesV9400494004 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71003Northern Cove Contra Costa County CaliforniaUnited States North AmericayesV9400594005 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71003Northern Cove Contra Costa County CaliforniaUnited States North AmericayesV9400694006 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71003Northern Cove Contra Costa County CaliforniaUnited States North AmericayesV9400794007 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71003Northern Cove Contra Costa County CaliforniaUnited States North AmericayesV9400894008 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71003Northern Cove Contra Costa County CaliforniaUnited States North AmericayesV9400994009 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VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71003Northern Cove Contra Costa County CaliforniaUnited States North AmericayesV9401794017 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71003Northern Cove Contra Costa County CaliforniaUnited States North AmericayesV9401894018 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71003Northern Cove Contra Costa County CaliforniaUnited States North AmericayesV9401994019 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV71003Northern Cove Contra Costa County CaliforniaUnited StatesNorth AmericayesV9716497164VOsteichthyesQuaternaryPleistoceneV71003Northern Cove Contra Costa County CaliforniaUnited States North AmericayesV9716597165 VOsteichthyes Gasterosteus aculeatusQuaternaryPleistoceneV71003Northern Cove Contra Costa County CaliforniaUnited States North AmericayesV9716797167 VQuaternaryPleistoceneV71003Northern Cove Contra Costa County CaliforniaUnited States North AmericayesV9716897168 VQuaternaryPleistoceneV71003Northern Cove 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VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190118190118 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190119190119 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited States North AmericayesV190120190120 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190121190121 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190122190122 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190123190123 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190124190124 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190125190125 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190126190126 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190127190127 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190128190128 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190129190129 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190130190130 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190131190131 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190132190132 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190133190133 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190134190134 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190135190135 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190136190136 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV190137190137 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190138190138 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190139190139 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190140190140 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190141190141 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190142190142 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190143190143 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190144190144 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited StatesNorth AmericayesV190145190145VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190146190146 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190147190147 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190148190148 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190149190149 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190150190150 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190151190151 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States 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North AmericayesV190173190173 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190174190174 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190175190175 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190176190176 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190177190177 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190178190178 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV190179190179 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190180190180 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190181190181 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190182190182 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190183190183 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190184190184 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190185190185 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190186190186 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190187190187 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190188190188 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190189190189 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190190190190 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190191190191 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190192190192 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190193190193 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190194190194 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190195190195 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190196190196 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190197190197 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190198190198 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190199190199 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190200190200 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190201190201 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190202190202 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North Americayes V190203190203 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190204190204 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190205190205 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190206190206 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190207190207 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190208190208 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190209190209 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190210190210 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190211190211 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited States North AmericayesV190212190212 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190213190213 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190214190214 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190215190215 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190216190216 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190217190217 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190218190218 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190219190219 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190220190220 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190221190221 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190222190222 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190223190223 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190224190224 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190225190225 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190226190226 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190227190227 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190228190228 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV190229190229 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190230190230 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190231190231 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190232190232 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190233190233 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190234190234 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190235190235 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190236190236 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited StatesNorth AmericayesV190237190237VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190238190238 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190239190239 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190240190240 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190241190241 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190242190242 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190243190243 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190244190244 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190245190245 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190246190246 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190247190247 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190248190248 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190249190249 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190250190250 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190251190251 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190252190252 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190253190253 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited States North AmericayesV190254190254 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190255190255 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190256190256 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190257190257 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190258190258 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190259190259 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190260190260 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190261190261 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190262190262 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190263190263 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190264190264 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190265190265 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190266190266 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190267190267 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190268190268 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190269190269 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190270190270 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV190271190271 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190272190272 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190273190273 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190274190274 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190275190275 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190276190276 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190277190277 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190278190278 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190279190279 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190280190280 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190281190281 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190282190282 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190283190283 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190284190284 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190285190285 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190286190286 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190287190287 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190288190288 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190289190289 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190290190290 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190291190291 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190292190292 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190293190293 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190294190294 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190295190295 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited StatesNorth AmericayesV190296190296VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190297190297 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190298190298 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190299190299 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190300190300 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190301190301 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190302190302 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190303190303 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190304190304 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190305190305 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190306190306 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190307190307 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190308190308 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190309190309 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190310190310 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190311190311 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North Americayes V190312190312 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190313190313 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190314190314 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190315190315 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190316190316 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190317190317 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190318190318 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190319190319 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190320190320 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited States North AmericayesV190321190321 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190322190322 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190323190323 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190324190324 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190325190325 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190326190326 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190327190327 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190328190328 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190329190329 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190330190330 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190331190331 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190332190332 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190333190333 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190334190334 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190335190335 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190336190336 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190337190337 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV190338190338 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190339190339 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190340190340 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190341190341 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190342190342 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190343190343 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190344190344 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190345190345 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited StatesNorth AmericayesV190346190346VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190347190347 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190348190348 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190349190349 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190350190350 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190351190351 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190352190352 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190353190353 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190354190354 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190355190355 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190356190356 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190357190357 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190358190358 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190359190359 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190360190360 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190361190361 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190362190362 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited States North AmericayesV190363190363 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190364190364 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190365190365 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190366190366 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190367190367 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190368190368 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190369190369 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190370190370 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190371190371 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190372190372 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190373190373 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190374190374 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190375190375 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190376190376 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190377190377 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190378190378 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190379190379 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV190380190380 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190381190381 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190382190382 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190383190383 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190384190384 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190385190385 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190386190386 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190387190387 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190388190388 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190389190389 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190390190390 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190391190391 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190392190392 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190393190393 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190394190394 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190395190395 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190396190396 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190397190397 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190398190398 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190399190399 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190400190400 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190401190401 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190402190402 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190403190403 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190404190404 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited StatesNorth AmericayesV190405190405VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190406190406 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190407190407 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190408190408 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190409190409 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190410190410 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190411190411 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190412190412 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190413190413 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190414190414 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190415190415 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190416190416 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190417190417 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190418190418 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190419190419 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190420190420 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North Americayes V190421190421 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190422190422 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190423190423 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190424190424 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190425190425 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190426190426 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190427190427 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190428190428 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190429190429 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited States North AmericayesV190430190430 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190431190431 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190432190432 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190433190433 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190434190434 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190435190435 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190436190436 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190437190437 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190438190438 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190439190439 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190440190440 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190441190441 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190442190442 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190443190443 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190444190444 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190445190445 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190446190446 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV190447190447 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190448190448 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190449190449 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190450190450 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190451190451 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190452190452 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190453190453 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190454190454 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited StatesNorth AmericayesV190455190455VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190456190456 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190457190457 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190458190458 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190459190459 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190460190460 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190461190461 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190462190462 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190463190463 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190464190464 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190465190465 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190466190466 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190467190467 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190468190468 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190469190469 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190470190470 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190471190471 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited States North AmericayesV190472190472 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190473190473 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190474190474 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190475190475 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190476190476 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190477190477 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190478190478 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190479190479 VMammaliaMicrotuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190484190484 VMammaliaSylvilagusbachmaniQuaternaryPleistocenev78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190491190491 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190492190492 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190493190493 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190494190494 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190495190495 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190496190496 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190497190497 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190498190498 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV190499190499 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190500190500 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190501190501 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190502190502 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190503190503 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190504190504 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190505190505 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190506190506 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190507190507 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190508190508 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190509190509 VMammaliaProcyonlotorQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190510190510 VMammaliaUrsusamericanusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190511190511 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190512190512 VMammaliaSylvilagusbachmaniQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190513190513 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190514190514 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190515190515 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190516190516 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190517190517 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190518190518 VMammaliaSylvilagusbachmaniQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190519190519 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190520190520 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190521190521 VMammaliaSylvilagusbachmaniQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190522190522 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190523190523 VMammaliaSylvilagusbachmaniQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited StatesNorth AmericayesV190524190524VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190525190525 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190526190526 VMammaliaSylvilagusbachmaniQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190527190527 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190528190528 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190529190529 VMammaliaSylvilagusbachmaniQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190530190530 VMammaliaSylvilagusbachmaniQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190531190531 VMammaliaSylvilagusbachmaniQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190532190532 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190533190533 VMammaliaSylvilagusbachmaniQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190534190534 VMammaliaSylvilagusbachmaniQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190535190535 VMammaliaEptesicusfuscusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190536190536 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190537190537 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190538190538 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190539190539 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North Americayes V190540190540 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190541190541 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190542190542 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190543190543 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190544190544 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190545190545 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190546190546 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190547190547 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190548190548 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited States North AmericayesV190549190549 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190550190550 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190551190551 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190552190552 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190553190553 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190554190554 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190555190555 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190556190556 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190557190557 VMammaliaSorexornatusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190558190558 VMammaliaUrocyoncinereoargenteusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190559190559 VMammaliaAntrozouspallidusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190560190560 VMammaliaAntrozouspallidusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190561190561 VMammaliaAntrozouspallidusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190562190562 VMammaliaEptesicusfuscusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190563190563 VMammaliaAntrozouspallidusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190564190564 VMammaliaAntrozouspallidusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190565190565 VMammaliaUrsusamericanusQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV190566190566 VMammaliaSylvilagusbachmaniQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190567190567 VMammaliaSylvilagusbachmaniQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190568190568 VMammaliaPeromyscusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190569190569 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190570190570 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190571190571 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190572190572 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190573190573 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited StatesNorth AmericayesV190574190574VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190575190575 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190576190576 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190577190577 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190578190578 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190579190579 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190580190580 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190581190581 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190582190582 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190583190583 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190584190584 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190585190585 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190586190586 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190587190587 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190588190588 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190589190589 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190590190590 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited States North AmericayesV190591190591 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190592190592 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190593190593 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190594190594 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190595190595 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190596190596 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190597190597 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190598190598 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States 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CaliforniaUnited States North AmericayesV190607190607 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV190608190608 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190609190609 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190610190610 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190611190611 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190612190612 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190613190613 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190614190614 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190615190615 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190616190616 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190617190617 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190618190618 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190619190619 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190620190620 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190621190621 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States 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CaliforniaUnited States North AmericayesV190653190653 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190654190654 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190655190655 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190656190656 VMammaliaSylvilagusbachmaniQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190657190657 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited States North AmericayesV190658190658 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190659190659 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190660190660 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190661190661 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190662190662 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190663190663 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190664190664 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190665190665 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190666190666 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190667190667 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States 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CaliforniaUnited StatesNorth AmericayesV190683190683VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190684190684 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190685190685 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190686190686 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190687190687 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190688190688 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190689190689 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190690190690 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190691190691 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190692190692 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190693190693 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190694190694 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190695190695 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190696190696 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190697190697 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190698190698 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190699190699 VMammaliaSylvilagusbachmaniQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited States North AmericayesV190700190700 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190701190701 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190702190702 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190703190703 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190704190704 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190705190705 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County 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VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190714190714 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190715190715 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190716190716 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV190717190717 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190718190718 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190719190719 VMammaliaScapanusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190720190720 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190721190721 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190722190722 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190723190723 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190724190724 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190725190725 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190726190726 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190727190727 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190728190728 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County 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VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190737190737 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190738190738 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190739190739 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190740190740 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190741190741 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited StatesNorth AmericayesV190742190742VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190743190743 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190744190744 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190745190745 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190746190746 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190747190747 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190748190748 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190749190749 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190750190750 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190751190751 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190752190752 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190753190753 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190754190754 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190755190755 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190756190756 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190757190757 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North Americayes V190758190758 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190759190759 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190760190760 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190761190761 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190762190762 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190763190763 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190764190764 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190765190765 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190766190766 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited States North AmericayesV190767190767 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190768190768 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190769190769 VMammaliaSylvilagusbachmaniQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190770190770 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190771190771 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190772190772 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190773190773 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190774190774 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190775190775 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190776190776 VMammaliaLasiurusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190777190777 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190778190778 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190779190779 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190780190780 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190781190781 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190782190782 VMammaliaThomomysbottaeQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190783190783 VMammaliaEptesicusfuscusQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV190784190784 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190785190785 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190786190786 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190787190787 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190788190788 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190789190789 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190790190790 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190791190791 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited StatesNorth AmericayesV190792190792VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190793190793 VMammaliaThomomysbottaeQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190794190794 VMammaliaThomomysbottaeQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190795190795 VMammaliaMicrotusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190796190796 VMammaliaMicrotusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190797190797 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190798190798 VMammaliaReithrodontomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190799190799 VMammaliaMicrotusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190802190802 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190803190803 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190804190804 VMammaliaAntrozouspallidusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190805190805 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190806190806 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190807190807 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190808190808 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190809190809 VMammaliaSylvilagusbachmaniQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190810190810 VMammaliaSylvilagusbachmaniQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited States North AmericayesV190811190811 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190812190812 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190813190813 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190814190814 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190815190815 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190816190816 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190817190817 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190818190818 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190819190819 VMammaliaPeromyscusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190820190820 VMammaliaPeromyscusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190821190821 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190822190822 VMammaliaThomomysbottaeQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190823190823 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190824190824 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190825190825 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190826190826 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190827190827 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV190828190828 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190829190829 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190830190830 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190831190831 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190832190832 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190833190833 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190834190834 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190835190835 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190836190836 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190837190837 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190838190838 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190839190839 VMammaliaThomomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190840190840 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190841190841 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190842190842 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190843190843 VMammaliaThomomysbottaeQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190844190844 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190845190845 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190846190846 VMammaliaThomomysbottaeQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190847190847 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190848190848 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190849190849 VMammaliaThomomysbottaeQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190850190850 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190851190851 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190852190852 VMammaliaThomomysbottaeQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited StatesNorth AmericayesV190853190853VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190854190854 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190855190855 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190856190856 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190857190857 VMammaliaSylvilagusbachmaniQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190858190858 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190859190859 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190860190860 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190861190861 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190862190862 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190863190863 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190864190864 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190865190865 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190866190866 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190867190867 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190868190868 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North Americayes V190869190869 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190870190870 VMammaliaThomomysbottaeQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190871190871 VMammaliaThomomysbottaeQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190872190872 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190873190873 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190874190874 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190875190875 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190876190876 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190877190877 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited States North AmericayesV190878190878 VMammaliaSylvilagusbachmaniQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190879190879 VMammaliaThomomysbottaeQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190881190881 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190882190882 VMammaliaMicrotusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190883190883 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190884190884 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190885190885 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190886190886 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190887190887 VMammaliaTamiasQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190888190888 VMammaliaOtospermophilus beecheyiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190889190889 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190890190890 VMammaliaThomomysbottaeQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190891190891 VMammaliaSylvilagusbachmaniQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190892190892 VMammaliaSylvilagusbachmaniQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190893190893 VAvesCentrocercusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190894190894 VMammaliaProcyonlotorQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190895190895 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV190896190896 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190897190897 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190898190898 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190899190899 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190900190900 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190901190901 VMammaliaNeotomafuscipesQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190902190902 VMammaliaSylvilagusbachmaniQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190903190903 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited StatesNorth AmericayesV190904190904VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190905190905 VMammaliaProcyonlotorQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190906190906 VMammaliaPeromyscusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190907190907 VMammaliaPeromyscustrueiQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190908190908 VMammaliaPeromyscusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190909190909 VMammaliaPeromyscusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190910190910 VMammaliaPeromyscusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190911190911 VMammaliaPeromyscusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190912190912 VMammaliaPeromyscuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190913190913 VMammaliaProcyonlotorQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190914190914 VMammaliaPeromyscusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190915190915 VMammaliaPeromyscusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190916190916 VMammaliaPeromyscuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190917190917 VMammaliaPeromyscuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190918190918 VAvesAnasQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190919190919 VMammaliaPeromyscuscalifornicusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190925190925 VMammaliaPeromyscusmaniculatusQuaternaryPleistoceneV78027Pacheco 2Contra Costa CountyCaliforniaUnited States North AmericayesV190926190926 VMammaliaPeromyscusmaniculatusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190927190927 VMammaliaUrsusamericanusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190928190928 VMammaliaPeromyscusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190929190929 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190930190930 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190931190931 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190932190932 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190933190933 VMammaliaPeromyscusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190934190934 VMammaliaReithrodontomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190935190935 VMammaliaPeromyscusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190936190936 VMammaliaQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190937190937 VMammaliaPeromyscusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190938190938 VMammaliaReithrodontomysQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190939190939 VMammaliaPeromyscusmaniculatusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190940190940 VAvesAsioflammeusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190941190941 VMammaliaPeromyscusQuaternaryPleistoceneV78027Pacheco 2Contra Costa County CaliforniaUnited States North AmericayesV190942190942 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VMammaliaSphenophalosTertiaryMiocene‐2572 Pinole Junction 1 Contra Costa County CaliforniaUnited States North AmericayesV2293722937 VMammaliaPliohippusTertiaryMiocene‐2572 Pinole Junction 1 Contra Costa County CaliforniaUnited States North AmericayesV2293822938 VMammaliaTertiaryMiocene‐2572 Pinole Junction 1 Contra Costa County CaliforniaUnited States North AmericayesV2293922939 VMammaliaPliohippusTertiaryMiocene‐2572 Pinole Junction 1 Contra Costa County CaliforniaUnited States North AmericayesV2294022940 VMammaliaPliohippusTertiaryMiocene‐2572 Pinole Junction 1 Contra Costa County CaliforniaUnited States North AmericayesV2294122941 VMammaliaSphenophalosFIGTertiaryMiocene‐2572 Pinole Junction 1 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV2294222942 VMammaliaSphenophalosFIGTertiaryMiocene‐2572 Pinole Junction 1 Contra Costa County CaliforniaUnited States North AmericayesV2294322943 VMammaliaSphenophalosTertiaryMiocene‐2572 Pinole Junction 1 Contra Costa County 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CaliforniaUnited States North AmericayesV2296722967VMammaliaPliohippusTertiaryMiocene‐2572Pinole Junction 1 Contra Costa County CaliforniaUnited States North AmericayesV2296822968 VMammaliaCernictishesperusTYPETertiaryMiocene‐2572 Pinole Junction 1 Contra Costa County CaliforniaUnited States North America 2222 0904 0045 0017 yesV2296922969 VMammaliaTertiaryMiocene‐2572 Pinole Junction 1 Contra Costa County CaliforniaUnited States North AmericayesV2297022970 VMammaliaTertiaryMiocene‐2572 Pinole Junction 1 Contra Costa County CaliforniaUnited States North AmericayesV2297122971 VMammaliaTertiaryMiocene‐2572 Pinole Junction 1 Contra Costa County CaliforniaUnited States North AmericayesV2297222972 VMammaliaTertiaryMiocene‐2572 Pinole Junction 1 Contra Costa County CaliforniaUnited States North AmericayesV2297322973VMammaliaTertiaryMiocene‐2572Pinole Junction 1 Contra Costa County CaliforniaUnited States North AmericayesV2297422974 VMammaliaTertiaryMiocene‐2572 Pinole Junction 1 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CaliforniaUnited States North AmericayesV3306033060 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV3564735647 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV3564835648 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV3566335663 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV3566435664 VMammaliaCanisTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV3757537575 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV3757637576 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV3757737577 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 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CaliforniaUnited States North AmericayesV5779657796 VMammaliaFissipedaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5779757797 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5779857798 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5779957799 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5780057800 VMammaliaTertiaryMioceneV3425Pinole Junction 2Contra Costa County CaliforniaUnited States North AmericayesV5780157801 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5780257802 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5780357803 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5780457804 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5780557805 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5780657806 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5799257992 VMammaliaTertiaryMioceneV3425Pinole Junction 2Contra Costa CountyCaliforniaUnited States North AmericayesV5799357993 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5799457994 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5799557995 VMammaliaPliohippuscoalingensisTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5799657996 VMammaliaPliohippuscoalingensisTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5799757997 VMammaliaPliohippuscoalingensisTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5799857998 VMammaliaPliohippuscoalingensisTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5799957999 VMammaliaPliohippuscoalingensisTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV5800058000 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5800158001 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5800258002 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5800358003 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5800458004 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5800558005 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5800658006 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited StatesNorth AmericayesV5800758007VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5800858008 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5800958009 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5801058010 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5801158011 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5801258012 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5801358013 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5801458014 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5801558015 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5801658016 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5801758017 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5801858018 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5801958019 VAvesTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5802058020 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5802158021 VMammaliaTertiaryMioceneV3425Pinole Junction 2Contra Costa County CaliforniaUnited States North AmericayesV5802258022 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5802358023 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5802458024 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5833358333 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5833458334 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5833558335 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5833658336 VMammaliaOsteoborusTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV5833758337 VMammaliaEutheriaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5833858338 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5833958339 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5834058340 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5834158341 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5834258342 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5834358343 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV5834458344 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5834558345 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5834658346 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5834758347 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5834858348 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5834958349 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5835058350 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5845158451 VMammaliaEutheriaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5845258452 VMammaliaEutheriaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5845358453 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5845458454 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5845558455 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5845658456 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5845758457 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5845858458 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5845958459 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5846058460 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5846158461 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5846258462 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5846358463 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5846458464 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5846558465 VMammaliaTertiaryMioceneV3425Pinole Junction 2Contra Costa County CaliforniaUnited States North Americayes V5846658466 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5846758467 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5846858468 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5846958469 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5847058470 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5848558485 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5848658486 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5848758487 VMammaliaFissipedaTertiaryMioceneV3425Pinole Junction 2Contra Costa County CaliforniaUnited States North AmericayesV5848858488 VMammaliaPeromyscusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5848958489 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5849058490 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5849158491 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5849258492 VMammaliaEutheriaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5849358493 VMammaliaEutheriaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5849458494 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV5849558495 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5855458554 VMammaliaOsteoborusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5855558555 VMammaliaMachairodusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5855658556 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5855758557 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5855858558 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5855958559 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited StatesNorth AmericayesV5856058560VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5857058570 VOsteichthyes Smilodonichthys rastrosusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5857158571 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5857258572 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5857358573 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5857458574 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5857558575 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5857658576 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5857758577 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5857858578 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV5857958579 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6059860598 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6059960599 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6060060600 VMammaliaOsteoborusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6060160601 VMammaliaTertiaryMioceneV3425Pinole Junction 2Contra Costa County CaliforniaUnited States North AmericayesV6060260602 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6060360603 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6060460604 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6060560605 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6060660606 VMammaliaOsteoborusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6060760607 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6060860608 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2Contra Costa CountyCaliforniaUnited States North AmericayesV6060960609 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6061060610 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6061160611 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6103961039 VMammaliaEutheriaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6104061040 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6104161041 VMammaliaFissipedaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6104261042 VMammaliaEutheriaTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV6104361043 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6155061550 VOsteichthyes Smilodonichthys rastrosusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6155161551 VMammaliaFissipedaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6155261552 VMammaliaFissipedaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6155361553 VMammaliaFissipedaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6155461554 VOsteichthyes Smilodonichthys rastrosusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6155561555 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited StatesNorth AmericayesV6155661556VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6155761557 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6155861558 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6155961559 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6156061560 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6156161561 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6156261562 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6156361563 VMammaliaEutheriaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6156461564 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6156561565 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6156661566 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6156761567 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6156861568 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6156961569 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6157061570 VMammaliaTertiaryMioceneV3425Pinole Junction 2Contra Costa County CaliforniaUnited States North AmericayesV6157161571 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6157261572 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6157361573 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6157461574 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6409164091 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6409264092 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6409364093 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV6409464094 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6409564095 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6409664096 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6409764097 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6409864098 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6409964099 VAvesTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6410064100 VOsteichthyes Smilodonichthys rastrosusTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV6410164101 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6410264102 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6410364103 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6410464104 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6410564105 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6410664106 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6410764107 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6410864108 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6410964109 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6411064110 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6411164111 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6411264112 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6411364113 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6411464114 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6412064120 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6412164121 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6412264122 VMammaliaEutheriaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6412364123 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6417164171 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6417264172 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6417364173 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6417464174 VMammaliaTertiaryMioceneV3425Pinole Junction 2Contra Costa County CaliforniaUnited States North Americayes V6417564175 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6417664176 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6417764177 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6417864178 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6417964179 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6418064180 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6418164181 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6418264182 VMammaliaTertiaryMioceneV3425Pinole Junction 2Contra Costa County CaliforniaUnited States North AmericayesV6418364183 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6418464184 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6418564185 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6418664186 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6418764187 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6418864188 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6418964189 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV6419064190 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6419164191 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6419264192 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6419364193 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6419464194 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6419564195 VOsteichthyesTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6419664196 VMammaliaEutheriaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited StatesNorth AmericayesV6419764197VMammaliaOsteoborusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6419864198 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6419964199 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6420064200 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6420864208 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6420964209 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6421064210 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6421164211 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6421264212 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6421364213 VMammaliaEutheriaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6421464214 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6421564215 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6421664216 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6421764217 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6422364223 VMammaliaOsteoborusTertiaryMioceneV3425Pinole Junction 2Contra Costa County CaliforniaUnited States North AmericayesV6477464774 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6477564775 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6477664776 VMammaliaEutheriaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6477764777 VMammaliaEutheriaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6477864778 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6477964779 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6478064780 VMammaliaTertiaryMioceneV3425Pinole Junction 2Contra Costa CountyCaliforniaUnited States North AmericayesV6478164781 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6478264782 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6478364783 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6478464784 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6478564785 VMammaliaEutheriaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6478664786 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6478764787 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV6478864788 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6478964789 VMammaliaEutheriaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6479064790 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6483564835 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6483664836 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6483764837 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6483864838 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited StatesNorth AmericayesV6483964839VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6484064840 VMammaliaOsteoborusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6484164841 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6484264842 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6484364843 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6484464844 VMammaliaEutheriaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6484564845 VMammaliaEutheriaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6484664846 VMammaliaEutheriaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6484764847 VMammaliaFissipedaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6484864848 VMammaliaFissipedaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6484964849 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6485064850 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6485164851 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6485264852 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6485364853 VMammaliaTertiaryMioceneV3425Pinole Junction 2Contra Costa County CaliforniaUnited States North AmericayesV6485464854 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6485564855 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6485664856 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6485764857 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6485864858 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6485964859 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6486064860 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV6529665296 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6529765297 VMammaliaOsteoborusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6562965629 VOsteichthyes Smilodonichthys rastrosusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6648066480 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6648166481 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6648266482 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6765667656 VMammaliaPseudhipparionTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV6765767657 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6765867658 VMammaliaMachairodusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6765967659 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV6998069980 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8120581205 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8120681206 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8120781207 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8120881208 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8120981209 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8121081210 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8121181211 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8121281212 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8121381213 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8121481214 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8121581215 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8121681216 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8121781217 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8121881218 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8121981219 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8122081220 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8122181221 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8122281222 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2Contra Costa County CaliforniaUnited States North Americayes V8122381223 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8122481224 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8122581225 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8122681226 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8122781227 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8122881228 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8122981229 VReptiliaClemmysTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8123081230 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2Contra Costa County CaliforniaUnited States North AmericayesV8123181231 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8123281232 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8123381233 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8123481234 VMammaliaAntilocaprinaeTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8123581235 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8167181671 VOsteichthyesTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8167281672 VReptiliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV8167381673 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8167481674 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8167581675 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8167681676 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8167781677 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8167881678 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8167981679 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited StatesNorth AmericayesV8168181681VMammaliaGliresTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8168281682 VMammaliaGliresTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8168381683 VMammaliaGliresTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8168481684 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8168581685 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8168681686 VMammaliaGliresTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8168781687 VMammaliaGliresTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8168881688 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8168981689 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8169081690 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8254482544 VMammaliaOsteoborusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8258082580 VAvesTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8258182581 VOsteichthyesTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8258282582 VOsteichthyesTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8258382583 VOsteichthyesTertiaryMioceneV3425Pinole Junction 2Contra Costa County CaliforniaUnited States North AmericayesV8258482584 VOsteichthyesTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8258582585 VOsteichthyesTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8258682586 VAmphibiaBatrachosepsPUBLTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8258782587 VAmphibiaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8258882588 VReptiliaClemmysTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8258982589 VReptiliaGerrhonotusPUBLTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8259082590 VReptiliaTertiaryMioceneV3425Pinole Junction 2Contra Costa CountyCaliforniaUnited States North AmericayesV8259182591 VReptiliaOphidiaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8259282592 VAvesTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8259382593 VAvesTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8259482594 VAvesTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8259582595 VAvesTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8259682596 VAvesTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8259782597 VMammaliaScapanusTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV8259882598 VMammaliaScapanusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8259982599 VMammaliaScapanusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8260082600 VMammaliaScapanusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8260182601 VMammaliaScapanusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8260282602 VMammaliaScapanusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8260382603 VMammaliaScapanusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8260482604 VMammaliaScapanusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited StatesNorth AmericayesV8260582605VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8260682606 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8260782607 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8260882608 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8260982609 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8261082610 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8261482614 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8261582615 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8261682616 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8261782617 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8261882618 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8261982619 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8262082620 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8262182621 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8262282622 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2Contra Costa County CaliforniaUnited States North AmericayesV8262382623 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8262482624 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8262582625 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8262682626 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8262782627 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8262882628 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8262982629 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV8263082630 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8263182631 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8263282632 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8263382633 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8263482634 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8263782637 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8263882638 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV8263982639 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8264082640 VMammaliaPliosaccomysTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8264182641 VMammaliaPliosaccomysTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8264282642 VMammaliaPliosaccomysTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8264382643 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8264482644 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8264582645 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8264682646 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8264782647 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8264882648 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8264982649 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8265082650 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8265182651 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8265282652 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8265382653 VMammaliaPeromyscusantiquusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8265482654 VMammaliaPeromyscusantiquusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8265582655 VMammaliaPeromyscusantiquusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8265682656 VMammaliaPeromyscusantiquusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8265782657 VMammaliaPeromyscusantiquusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8265882658 VMammaliaPeromyscusantiquusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8265982659 VMammaliaPeromyscusantiquusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8266082660 VMammaliaPeromyscusantiquusTertiaryMioceneV3425Pinole Junction 2Contra Costa County CaliforniaUnited States North America 0000 0000 0411 0159 yes V8266182661 VMammaliaPeromyscusantiquusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8266282662 VMammaliaPeromyscusantiquusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8266382663 VMammaliaPeromyscusantiquusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8266482664 VMammaliaPeromyscusantiquusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8266582665 VMammaliaPeromyscusantiquusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8266682666 VMammaliaPeromyscusantiquusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8266782667 VMammaliaPeromyscusantiquusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8266882668 VMammaliaMiotomodon mayiTYPETertiaryMioceneV3425Pinole Junction 2Contra Costa CountyCaliforniaUnited States North America 0000 0000 0810 1337 yesV8266982669 VMammaliaMiotomodon mayiFIGTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8267082670 VMammaliaMiotomodon mayiPUBLTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8267182671 VMammaliaMiotomodon mayiFIGTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8267282672 VMammaliaMiotomodon mayiFIGTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8267382673 VMammaliaMiotomodon mayiFIGTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8267482674 VMammaliaPeromyscuspliocaenicusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8267782677 VMammaliaPeromyscusTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV8267882678 VMammaliaPeromyscusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8267982679 VMammaliaPeromyscusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8268082680 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8268182681 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8268282682 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8268382683 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8268482684 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited StatesNorth AmericayesV8268882688VOsteichthyesTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8268982689 VOsteichthyesTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8269082690 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8269182691 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8269282692 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8269382693 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8269482694 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8269582695 VMammaliaPeromyscusantiquusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8269682696 VReptiliaClemmysTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8269782697 VReptiliaClemmysTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8269882698 VMammaliaPliosaccomysTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8269982699 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8270082700 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8282282822 VMammaliaVulpesdavisiTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8282382823 VMammaliaVulpesdavisiTertiaryMioceneV3425Pinole Junction 2Contra Costa County CaliforniaUnited States North AmericayesV8282582825 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8282682826 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8282782827 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8282882828 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8282982829 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8283082830 VMammaliaTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8800588005 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2Contra Costa CountyCaliforniaUnited States North AmericayesV8800688006 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8800788007 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8800888008 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8800988009 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8801088010 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8801188011 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8801288012 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV8801388013 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8801488014 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8801588015 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8801688016 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8801788017 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8801888018 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8801988019 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited StatesNorth AmericayesV8802088020VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8802188021 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8802288022 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8802388023 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8802488024 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8802588025 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8802688026 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8802788027 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8802888028 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8802988029 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8803088030 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8803188031 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8803288032 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8803388033 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8803488034 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2Contra Costa County CaliforniaUnited States North AmericayesV8803588035 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8803688036 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8803788037 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8803888038 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8803988039 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8804088040 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8804188041 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV8804288042 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8804388043 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8804488044 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8804588045 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8804688046 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8804788047 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8804888048 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV8804988049 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8805088050 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8805188051 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8805288052 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8805388053 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8805488054 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8805588055 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8805688056 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8805788057 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8805888058 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8805988059 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8806088060 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8806188061 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8806288062 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8806388063 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8806488064 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8806588065 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8806688066 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8806788067 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8806888068 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8806988069 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8807088070 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2Contra Costa County CaliforniaUnited States North Americayes V8807188071 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8807288072 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8807388073 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8807488074 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8807588075 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8807688076 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8807788077 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8807888078 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2Contra Costa County CaliforniaUnited States North AmericayesV8807988079 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8808088080 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV8808188081 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9298592985 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9298692986 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9298792987 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9298892988 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV9298992989 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9299092990 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9299192991 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9299292992 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9299392993 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9299492994 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9299592995 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited StatesNorth AmericayesV9299692996VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9299792997 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9299892998 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9299992999 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9300093000 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9300293002 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9300393003 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9300493004 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9300593005 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9300693006 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9442694426 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9442794427 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9442894428 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9442994429 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9443094430 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2Contra Costa County CaliforniaUnited States North AmericayesV9443194431 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9443294432 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9443394433 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9443494434 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9443594435 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9443694436 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9443794437 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2Contra Costa CountyCaliforniaUnited States North AmericayesV9443894438 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9443994439 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9444094440 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9444194441 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9444294442 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9444394443 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9444494444 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV9444594445 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9444694446 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9444794447 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9444894448 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9444994449 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9445094450 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9445194451 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited StatesNorth AmericayesV9445294452VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9445394453 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9445494454 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9445594455 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9445694456 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9445794457 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9445894458 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9445994459 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9446094460 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9446194461 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9446294462 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9446394463 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9446494464 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9446594465 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9446694466 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2Contra Costa County CaliforniaUnited States North AmericayesV9446794467 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9446894468 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9446994469 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9447094470 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9447194471 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9447294472 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9457094570 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV9457194571 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9457294572 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9457394573 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9457494574 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9457594575 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9457694576 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9457794577 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV9457894578 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9457994579 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9458094580 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9458194581 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9458294582 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9458394583 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9458494584 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9458594585 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9458694586 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9458794587 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9458894588 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9458994589 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9459094590 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9459194591 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9459294592 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9459394593 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9459494594 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9459594595 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9459694596 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9459794597 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9459894598 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9459994599 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2Contra Costa County CaliforniaUnited States North Americayes V9460094600 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9460194601 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9460294602 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9460394603 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9460494604 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9460594605 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9460694606 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9460794607 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2Contra Costa County CaliforniaUnited States North AmericayesV9460894608 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9460994609 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9461094610 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9461194611 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9461294612 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9461394613 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9461494614 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV9461594615 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9461694616 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9461794617 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9461894618 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9461994619 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9462094620 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9462194621 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited StatesNorth AmericayesV9462294622VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9462394623 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9462494624 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9462594625 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9462694626 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9462794627 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9462894628 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9462994629 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9463094630 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9463194631 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9463294632 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9463394633 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9463494634 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9463594635 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9463694636 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2Contra Costa County CaliforniaUnited States North AmericayesV9463794637 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9463894638 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9463994639 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9464094640 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9464194641 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9464294642 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9464394643 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2Contra Costa CountyCaliforniaUnited States North AmericayesV9464494644 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9464594645 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9464694646 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9464794647 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9501995019 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9502095020 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9502195021 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV9502295022 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9502395023 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9502495024 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9502595025 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9502695026 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9502795027 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9502895028 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited StatesNorth AmericayesV9502995029VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9552195521 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9552295522 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9552395523 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV9552495524 VMammaliaSphenophalosTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV125024125024 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV125025125025 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV125026125026 VMammaliaHypolagusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV132039132039 VReptiliaClemmysmarmorataTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV132040132040 VReptiliaClemmysmarmorataTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV132041132041 VReptiliaClemmysmarmorataTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV134474134474 VReptiliaCharinabottaeTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV139451139451 VMammaliaMiotomodon mayiPUBLTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV139452139452 VMammaliaMiotomodon mayiFIGTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV139453139453 VMammaliaMiotomodon mayiPUBLTertiaryMioceneV3425Pinole Junction 2 Contra Costa CountyCaliforniaUnited States North AmericayesV153881153881 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV153882153882 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV153883153883 VMammaliaPliohippusTertiaryMioceneV3425Pinole Junction 2 Contra Costa County CaliforniaUnited States North AmericayesV3456534565 VMammaliaSphenophalosTertiaryMioceneV3837Pinole Junction 3 Contra Costa County CaliforniaUnited States North AmericayesV3456634566 VOsteichthyes Smilodonichthys rastrosusTertiaryMioceneV3837Pinole Junction 3 Contra Costa County CaliforniaUnited States North AmericayesV3456734567 VMammaliaPliohippusTertiaryMioceneV3837Pinole Junction 3 Contra Costa County CaliforniaUnited States North AmericayesV6115161151 VMammaliaTertiaryMioceneV3837Pinole Junction 3 Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV6115261152 VMammaliaTertiaryMioceneV3837Pinole Junction 3 Contra Costa County CaliforniaUnited States North AmericayesV6115361153 VMammaliaTertiaryMioceneV3837Pinole Junction 3 Contra Costa County CaliforniaUnited States North AmericayesV6874268742 VMammaliaTertiaryMioceneV3837Pinole Junction 3 Contra Costa County CaliforniaUnited States North AmericayesV81038103 VMammaliaEquusQuaternaryPleistocene‐1361 Pinole R.R. 1 Contra Costa County CaliforniaUnited States North AmericayesV81048104 VMammaliaMammutamericanumQuaternaryPleistocene‐1361 Pinole R.R. 1 Contra Costa County CaliforniaUnited States North AmericayesV1099710997 VMammaliaBisonQuaternaryPleistocene‐1361 Pinole R.R. 1 Contra Costa County CaliforniaUnited States North AmericayesV1907319073 VMammaliaEquusQuaternaryPleistocene‐1361 Pinole R.R. 1Contra Costa County CaliforniaUnited States North AmericayesV1909219092 VMammaliaEquusQuaternaryPleistocene‐1361 Pinole R.R. 1 Contra Costa County CaliforniaUnited States North AmericayesV2209822098 VMammaliaBisonbisonantiquusQuaternaryPleistocene‐1361 Pinole R.R. 1 Contra Costa County CaliforniaUnited States North AmericayesV80948094 VMammaliaElephasQuaternaryPleistoceneV67106Pinole Rr 1Contra Costa County CaliforniaUnited States North AmericayesV80958095 VMammaliaBisonQuaternaryPleistoceneV67106Pinole Rr 1Contra Costa County CaliforniaUnited States North AmericayesV6412464124 VMammaliaQuaternaryPleistoceneV6313Pinole‐Orleans Drive Contra Costa County CaliforniaUnited States North AmericayesV6412564125 VMammaliaPilosaQuaternaryPleistoceneV6313Pinole‐Orleans Drive Contra Costa County CaliforniaUnited States North AmericayesV6421964219 VMammaliaGliresQuaternaryPleistoceneV6313Pinole‐Orleans DriveContra Costa County CaliforniaUnited States North AmericayesV6422064220 VMammaliaEutheriaQuaternaryPleistoceneV6313Pinole‐Orleans Drive Contra Costa County CaliforniaUnited States North AmericayesV6422164221 VMammaliaQuaternaryPleistoceneV6313Pinole‐Orleans Drive Contra Costa County CaliforniaUnited States North AmericayesV6422264222 VMammaliaQuaternaryPleistoceneV6313Pinole‐Orleans Drive Contra Costa County CaliforniaUnited States North AmericayesV9503095030 VMammaliaSphenophalosQuaternaryPleistoceneV6313Pinole‐Orleans Drive Contra Costa County CaliforniaUnited States North AmericayesM2162121621 MPolythalamea NonionpizarrensisFORAMINIFERA.TertiaryMioceneMF7237Pinole‐Rodeo Highway Contra Costa County CaliforniaUnited States North AmericayesM2162221622 MPolythalamea Nonionpizarrensismulticameratum var.FORAMINIFERA. OD = Nonion pizarrensis var. multicameratum Cushman & Kleinpell.TertiaryMioceneMF7237Pinole‐Rodeo Highway Contra Costa County CaliforniaUnited States North AmericayesM2168721687 MPolythalamea NonionellamiocenicaFORAMINIFERA. OD = Nautilus umbilicatulus.TertiaryMioceneMF7237Pinole‐Rodeo Highway Contra Costa County CaliforniaUnited States North AmericayesM2188721887 MPolythalamea Bathysiphon arenaceaFORAMINIFERATertiaryMioceneMF7234Pinole‐Rodeo Highway Contra Costa County CaliforniaUnited States North AmericayesM2238122381 MPolythalamea VirgulinacaliforniensisFORAMINIFERA.TertiaryMioceneMF7237Pinole‐Rodeo Highway Contra Costa County CaliforniaUnited States North AmericayesM2238722387 MPolythalamea Virgulinellacaliforniensis grandisFORAMINIFERA. OD = Virgulina californiensis var. grandis Cushman & Kleinpell.TertiaryMioceneMF7234Pinole‐Rodeo Highway Contra Costa County CaliforniaUnited States North AmericayesV3817438174 VMammaliaMammutQuaternaryPleistoceneV4701Pleasant Hill Contra Costa County CaliforniaUnited States North AmericayesV5643156431 VMammaliaMegalonyxQuaternaryPleistoceneV6006Pleasant Hill High SchoolContra Costa County CaliforniaUnited States North AmericayesI5317153171 IGastropodaLottiadigitalisQuaternaryRecentE36Point Richmond Contra Costa County CaliforniaUnited States North AmericayesI161167161167 IAnthozoaQuaternaryRecentB516Point Richmond Contra Costa County CaliforniaUnited States North AmericayesV3823138231 VMammaliaEquusQuaternaryPleistoceneV4505Port Chicago Contra Costa County CaliforniaUnited States North Americayes V3823238232 VMammaliaTapirusmerriamiFIGQuaternaryPleistoceneV4505Port Chicago Contra Costa County CaliforniaUnited States North America 0000 0000 1211 0069 yesV3823338233 VMammaliaCynodesmus thooidesQuaternaryPleistoceneV4505Port Chicago Contra Costa County CaliforniaUnited States North AmericayesV15971597 VMammaliaBisonQuaternaryPleistocene‐527 Powder Works N Contra Costa County CaliforniaUnited States North AmericayesM178178 MPolythalamea UvigerinagarzaensisFORAMINIFERA hypotypeTertiaryEoceneA4501Quarry on Ginnochias RanchContra Costa County CaliforniaUnited States North AmericayesM70597059 MPolythalameaFORAMINIFERATertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM1624016240 MPolythalamea Pseudoclavulina petrosaFORAMINIFERA. OD = Listerella petrosa Cushman & Bermudez.TertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4000240002 MPolythalamea Bathysiphon eocenicaFORAMINIFERA hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4001440014 MPolythalamea Spiroplectammina adamsiFORAMINIFERA hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4002840028 MPolythalamea Pseudoclavulina petrosaFORAMINIFERA. OD = Listerella petrosa Cushman & Bermudez.hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4004440044 MPolythalamea RobulusalatolimbatusFORAMINIFERA. OD = Robulina alato‐limbata Guembel.hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4004740047 MPolythalamea RobulusconvergensFORAMINIFERA. OD = Cristellaria convergens Bornemann.hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4005140051 MPolythalamea RobulusinornatusFORAMINIFERA. OD = Robulina inornata Orbigny.hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4005940059 MPolythalamea RobulusvortexFORAMINIFERA. OD = Nautilus vortex Fichtel & Moll.hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4006940069 MPolythalamea PlanulariaFORAMINIFERA hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4007040070 MPolythalamea PlanulariaFORAMINIFERA hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4007740077 MPolythalamea Vaginulinopsis saundersiFORAMINIFERA. OD = Cristellaria saundersi Hanna & Hanna.hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4007940079 MPolythalamea Vaginulinopsis subaculeatatuberculataFORAMINIFERA. OD = Cristellaria subaculeata var. tuberculata Plummer.hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4008040080 MPolythalamea Vaginulinopsis truncanaFORAMINIFERA. OD = Cristellaria truncana Guembel.hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4009240092 MPolythalamea DentalinaFORAMINIFERA. hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4009340093 MPolythalamea NodosariaalternataFORAMINIFERA. OD = Nodosaria zippei var. alternata Jones.hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4010240102 MPolythalamea Pseudoglandulina conicaFORAMINIFERA. OD = Glandulina conica Neugeboren.hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4010340103 MPolythalamea Pseudoglandulina conicaFORAMINIFERA. OD = Glandulina conica Neugeboren.hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4010440104 MPolythalamea SaracenariatriangularisFORAMINIFERA. OD = Cristellaria triangularis Orbigny.hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4010640106 MPolythalamea VaginulinabarcoensisFORAMINIFERA hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4010740107 MPolythalamea VaginulinasuturalisFORAMINIFERA hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4010940109 MPolythalamea Frondicularia inversaFORAMINIFERA hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4011340113 MPolythalamea LagenaFORAMINIFERA. hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4012840128 MPolythalamea UvigerinalaimingiFORAMINIFERA holotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North America 0000 0000 0405 1726 yesM4012940129 MPolythalamea UvigerinalaimingiFORAMINIFERA paratypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4013040130 MPolythalamea UvigerinalaimingiFORAMINIFERA paratypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa CountyCaliforniaUnited StatesNorth AmericayesM4013240132 MPolythalamea Nodogenerina sagrinensisFORAMINIFERA. OD = Nodosaria sagrinensis Bagg.hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4013340133 MPolythalamea Nodogenerina sagrinensisFORAMINIFERA. OD = Nodosaria sagrinensis Bagg.hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4014540145 MPolythalamea BuliminakleinpelliFORAMINIFERA HolotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North America 0000 0000 0405 0926 yesM4014640146 MPolythalamea BuliminakleinpelliFORAMINIFERA paratypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4017340173 MPolythalamea EponidesbeisseliFORAMINIFERA. OD = Gyroidina beisseli White.hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4017440174 MPolythalamea EponideslodoensismartiniFORAMINIFERA. holotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North America 0000 0000 0405 1437 yesM4017540175 MPolythalamea EponideslodoensismartiniFORAMINIFERA. paratypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4017840178 MPolythalamea EponidesmexicanaFORAMINIFERA. OD = Pulvinulina mexicana Cushman.hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4018240182 MPolythalamea EponideswaltonensisFORAMINIFERA hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4018440184 MPolythalamea ColeitesreticulosusFORAMINIFERA. OD = Pulvinulina reticulosa Plummer.hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4018540185 MPolythalamea SiphoninaFORAMINIFERA. hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4019340193 MPolythalamea Allomorphina halliFORAMINIFERA hyptoypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4019440194 MPolythalamea Allomorphina trochoidesFORAMINIFERA. OD = Globigerina trochoides Reuss.hyptoypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4020240202 MPolythalamea Globorotalia membranaceaFORAMINIFERA. OD = Planulina? membranacea.hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4020340203 MPolythalamea Globorotalia membranaceaFORAMINIFERA. OD = Planulina? membranacea.hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4020440204 MPolythalamea Globorotalia californicaFORAMINIFERA holotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North America 0000 0000 0405 1469 yesM4020540205 MPolythalamea Globorotalia californicaFORAMINIFERA paratypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4020640206 MPolythalamea Globorotalia californicaFORAMINIFERA paratypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4020740207 MPolythalamea Globorotalia californicaFORAMINIFERA paratypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4020840208 MPolythalamea GloborotaliaFORAMINIFERA hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4021140211 MPolythalamea AnomalinadorriaragonensisFORAMINIFERA. hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4022840228 MPolythalamea CibicidespachecoensisFORAMINIFERA holotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa CountyCaliforniaUnited StatesNorth America 0000 0000 0405 0961 yesM4022940229 MPolythalamea CibicidespachecoensisFORAMINIFERA paratypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4023240232 MPolythalamea CibicidoidesalazanensisFORAMINIFERA. OD = Anomalina alazanensis Nuttall.hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4023740237 MPolythalamea CibicidoidesmidwayensisFORAMINIFERA. OD = Truncatulina midwayensis Plummer.hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4024040240 MPolythalamea CibicidoidesdurhamiFORAMINIFERA holotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North America 0000 0000 0405 0965 yesM4024140241 MPolythalamea CibicidoidesdurhamiFORAMINIFERA paratypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4444444444 MEllipsolithusdistichusCalcareous nannoplankton. OD = Coccolithites distichus Bramlette & Sullivan.hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4444544445 MEllipsolithusdistichusCALCAREOUS NANNOPLANKTON. OD = Coccolithites distichus Bramlette & Sullivan.hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4447544475 MBraarudosphaera bigelowiCalcareous nannoplankton: OD = Pontosphaera bigelowi Gran & Braarud.hypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4448444484 MMicrantholithus pinguisCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4448544485 MMicrantholithus pinguisCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4448644486 MMicrantholithus pinguisCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesM4448744487 MMicrantholithus pinguisCalcareous nannoplanktonhypotypeTertiaryPaleoceneA6658Railroad cut, Selby Contra Costa County CaliforniaUnited States North AmericayesI557153557153 IGastropodaBusycotypus canaliculatusBusycon canaliculatumQuaternaryRecentIP1835Ranch 99Contra Costa County CaliforniaUnited States North AmericayesV212943212943 VMammaliaMammuthusQuaternaryPleistoceneV91219RegencyContra Costa County CaliforniaUnited States North AmericayesV3980939809 VMammaliaMammuthusQuaternaryPleistoceneV5040Reliez HillContra Costa County CaliforniaUnited States North AmericayesV4492644926 VMammaliaPilosaTertiaryMioceneV5505RheemContra Costa County CaliforniaUnited States North AmericayesV139449139449 VMammaliaPeromyscuspliocaenicusTertiaryMioceneV5505RheemContra Costa County CaliforniaUnited States North AmericayesV139450139450 VMammaliaPeromyscuspliocaenicusTertiaryMioceneV5505RheemContra Costa County CaliforniaUnited States North AmericayesI1158411584 IBivalviaPectencrassiradiatusHolotypeTertiaryMiocene467‐Riggs Canyon Contra Costa County CaliforniaUnited States North AmericayesI1159011590 IGastropodaNaticakirkerensisParatypeTertiaryMiocene467‐Riggs Canyon Contra Costa County CaliforniaUnited States North AmericayesI1159111591 IGastropodaNaticakirkerensisHolotypeTertiaryMiocene467‐Riggs Canyon Contra Costa County CaliforniaUnited States North AmericayesI1180111801 IBivalviaArcaclarkiHolotypeTertiaryEocene733‐Riggs Canyon Contra Costa County CaliforniaUnited States North AmericayesI1203612036 IAnthozoaBalanophyllia variabilisCotypeTertiaryEocene714‐Riggs Canyon Contra Costa County CaliforniaUnited States North AmericayesI1203712037 IAnthozoaBalanophyllia variabilisCotypeTertiaryEocene714‐Riggs Canyon Contra Costa County CaliforniaUnited States North AmericayesI1203812038 IAnthozoaBalanophyllia variabilisCotypeTertiaryEocene714‐Riggs Canyon Contra Costa County CaliforniaUnited States North AmericayesI5112951129 IEchinoideaScutellabrewerianusTertiaryMiocene467‐Riggs Canyon Contra Costa County CaliforniaUnited States North AmericayesV156037156037 VOsteichthyesActinopterygiQuaternaryPleistoceneV91184Riverview Fish skull Contra Costa County CaliforniaUnited States North AmericayesV7094470944 VMammaliaHipparionTertiaryMioceneV6580Roadcut Canyon Contra Costa CountyCaliforniaUnited States North AmericayesV7094570945 VMammaliaHipparionTertiaryMioceneV6580Roadcut Canyon Contra Costa County CaliforniaUnited States North AmericayesI1146011460 IBivalviaMuliniapabloensisHypotypeTertiaryMiocene39‐Rocky RidgeContra Costa County CaliforniaUnited States North AmericayesI1152211522 IBivalviaPanopegenerosaHypotypeTertiaryMiocene39‐Rocky RidgeContra Costa County CaliforniaUnited States North AmericayesI1154611546 IBivalviaMytilustrampasensisCotypeTertiaryMiocene39‐Rocky RidgeContra Costa County CaliforniaUnited States North AmericayesV3303033030 VMammaliaTertiaryMioceneV3644Rocky Ridge 2 Contra Costa County CaliforniaUnited States North AmericayesV3303133031 VMammaliaTertiaryMioceneV3644Rocky Ridge 2 Contra Costa County CaliforniaUnited States North AmericayesV3303233032 VMammaliaTertiaryMioceneV3644Rocky Ridge 2 Contra Costa County CaliforniaUnited States North AmericayesV3300233002 VMammaliaDesmostylusTertiaryMioceneV3641Rocky Ridge 3Contra Costa County CaliforniaUnited States North AmericayesV1097510975 VMammaliaQuaternaryPleistoceneV6642Rodeo 2Contra Costa County CaliforniaUnited States North AmericayesV1098610986 VMammaliaQuaternaryPleistoceneV6642Rodeo 2Contra Costa County CaliforniaUnited States North AmericayesV7586075860 VAvesAechmophorus occidentalisQuaternaryPleistoceneV6642Rodeo 2Contra Costa County CaliforniaUnited States North AmericayesV13521352 VMammaliaHesperocetus californicusTYPETertiaryMioceneV65399Rodeo NrContra Costa County CaliforniaUnited States North AmericayesV15721572 VMammaliaMammuthus columbiQuaternaryPleistocene‐524 Rodeo Oyster Bed Contra Costa County CaliforniaUnited States North AmericayesV3581635816 VMammaliaMammuthusQuaternaryPleistoceneV4014Rodeo‐Pecten Point Contra Costa County CaliforniaUnited States North AmericayesV4157241572 VMammaliaCamelopsQuaternaryPleistoceneV4014Rodeo‐Pecten Point Contra Costa County CaliforniaUnited States North AmericayesV4494544945 VMammaliaMammuthusQuaternaryPleistoceneV4014Rodeo‐Pecten Point Contra Costa County CaliforniaUnited States North AmericayesV4494644946 VMammaliaCamelopsQuaternaryPleistoceneV4014Rodeo‐Pecten Point Contra Costa County CaliforniaUnited States North AmericayesV5750757507 VMammaliaEquusQuaternaryPleistoceneV4014Rodeo‐Pecten Point Contra Costa County CaliforniaUnited States North AmericayesV6868168681 VMammaliaQuaternaryPleistoceneV4014Rodeo‐Pecten Point Contra Costa County CaliforniaUnited States North AmericayesV9381393813 VMammaliaPerognathusQuaternaryPleistoceneV4014Rodeo‐Pecten Point Contra Costa County CaliforniaUnited States North AmericayesV9716697166 VChondrichthyes MyliobatisQuaternaryPleistoceneV4014Rodeo‐Pecten Point Contra Costa County CaliforniaUnited States North AmericayesV128381128381 VMammaliaNannippustehonensisTertiaryMioceneV83070Round TopContra Costa County CaliforniaUnited States North AmericayesV128382128382 VMammaliaNannippustehonensisTertiaryMioceneV83070Round TopContra Costa CountyCaliforniaUnited States North AmericayesV112749112749 VMammaliaNannippustehonensisTertiaryMioceneV74154Round Top S Contra Costa County CaliforniaUnited States North AmericayesM2410424104 MCretaceousMF8183RR cut above Franklin Canyon InnContra Costa County CaliforniaUnited States North AmericayesM81238123 MPolythalameaFORAMINIFERATertiaryEoceneD1736S of AntiochContra Costa County CaliforniaUnited States North AmericayesM4176141761 MPolythalamea Amphimorphina jenkinsiFORAMINIFERA. OD = Plectofrondicularia jenkinsi Church.hypotypeTertiaryEoceneD1736S of AntiochContra Costa County CaliforniaUnited States North AmericayesI161086161086 IPoritessp.TertiaryEoceneA2832S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM86798679 MPolythalamea BuliminamicrocostataFORAMINIFERATertiaryEoceneA2838S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North Americayes M86808680 MPolythalamea HoeglundinaFORAMINIFERATertiaryEoceneA2847S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM86818681 MPolythalamea LenticulinacoaledensisFORAMINIFERA. OD = Robulus coaledensis Detling.TertiaryEoceneA2847S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM86828682 MPolythalamea LenticulinacoaledensiskreyenhagenesisFORAMINIFERA. OD = Robulus coaledensis Detling.TertiaryEoceneA2838S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM86838683 MPolythalamea Lenticulinacoaledensiskreyenhagenesis var.FORAMINIFERA. OD = Robulus kreyenhagensis Mallory.TertiaryEoceneA2847S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM86848684 MPolythalamea NodosariaFORAMINIFERA. OD = Robulus kreyenhagensis MalloryTertiaryEoceneA2838S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM86858685 MPolythalamea PlanulariacrepidulaFORAMINIFERA. OD = Nautilus crepidula Fichtel & Moll.TertiaryEoceneA2838S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM86868686 MPolythalamea PlanulariacrepidulaFORAMINIFERA. OD = Nautilus crepidula Fichtel & Moll.TertiaryEoceneA2847S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM86878687 MPolythalamea PlanulariamarkleyanaFORAMINIFERA.TertiaryEoceneA2847S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM86888688 MPolythalamea Plectofrondicularia jenkinsiFORAMINIFERATertiaryEoceneA2838S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM86898689 MPolythalamea Stilostomella sidneyensisFORAMINIFERATertiaryEoceneA2838S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM86908690 MPolythalamea ValvulineriaconicaFORAMINIFERATertiaryEoceneA2838S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM86918691 MPolycystinaRADIOLARIATertiaryEoceneA2838S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM86928692 MPolythalameaFORAMINIFERATertiaryEoceneA2847S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM86938693 MPolythalameaFORAMINIFERATertiaryEoceneA2865S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM86948694 MPolycystinaRADIOLARIATertiaryEoceneA2865S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM86958695 MPolythalameaFORAMINIFERATertiaryEoceneA2865S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM86968696 MPolycystinaRADIOLARIATertiaryEoceneA2865S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM86978697 MPolythalameaFORAMINIFERATertiaryEoceneA2865S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90479047 MPolythalameaFORAMINIFERATertiaryEoceneA2829S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90489048 MPolythalameaFORAMINIFERATertiaryEoceneA2830S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90499049 MPolythalameaFORAMINIFERATertiaryEoceneA2832S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90509050 MPolythalameaFORAMINIFERATertiaryEoceneA2832S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90519051 MPolythalameaFORAMINIFERATertiaryEoceneA2833S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90529052 MPolythalameaFORAMINIFERATertiaryEoceneA2835S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90539053 MPolythalameaFORAMINIFERATertiaryEoceneA2836S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90549054 MPolythalameaFORAMINIFERATertiaryEoceneA2837S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90559055 MPolythalameaFORAMINIFERATertiaryEoceneA2837S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90569056 MPolythalameaFORAMINIFERATertiaryEoceneA2838S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90579057 MPolythalameaFORAMINIFERATertiaryEoceneA2838S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90589058 MPolycystinaRADIOLARIATertiaryEoceneA2838S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90599059 MPolycystinaRADIOLARIATertiaryEoceneA2838S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90609060 MPolycystinaRADIOLARIATertiaryEoceneA2838S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90619061 MTertiaryEoceneA2838S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90629062 MPolythalameaFORAMINIFERATertiaryEoceneA2840S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90639063 MPolythalameaFORAMINIFERATertiaryEoceneA2840S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90649064 MPolythalameaFORAMINIFERATertiaryEoceneA2841S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90659065 MPolythalameaFORAMINIFERATertiaryEoceneA2841S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90669066 MPolythalameaFORAMINIFERATertiaryEoceneA2847S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90679067 MPolythalameaFORAMINIFERATertiaryEoceneA2849S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90689068 MPolythalameaFORAMINIFERATertiaryEoceneA2849S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90699069 MPolythalameaFORAMINIFERATertiaryEoceneA2850S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90709070 MPolythalameaFORAMINIFERATertiaryEoceneA2850S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90719071 MPolythalameaFORAMINIFERATertiaryEoceneA2852S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90729072 MPolythalameaFORAMINIFERATertiaryEoceneA2852S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90739073 MPolythalameaFORAMINIFERATertiaryEoceneA2854S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90749074 MPolythalameaFORAMINIFERATertiaryEoceneA2854S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90759075 MPolythalameaFORAMINIFERATertiaryEoceneA2855S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90769076 MPolythalameaFORAMINIFERATertiaryEoceneA2855S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90779077 MPolythalameaFORAMINIFERATertiaryEoceneA2861S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90789078 MPolythalameaFORAMINIFERATertiaryEoceneA2862S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90799079 MPolythalameaFORAMINIFERATertiaryEoceneA2863S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90809080 MPolythalameaFORAMINIFERATertiaryEoceneA2863S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90819081 MPolythalameaFORAMINIFERATertiaryEoceneA2864S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90829082 MPolythalameaFORAMINIFERATertiaryEoceneA2864S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90839083 MPolythalamea BolivinaFORAMINIFERA.TertiaryEoceneA2865S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM90849084 MPolythalamea GlobocassidulinaFORAMINIFERATertiaryEoceneA2865S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM98919891 MPolycystinaRADIOLARIATertiaryEoceneA2830S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM98929892 MPolycystinaRADIOLARIATertiaryEoceneA2831S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM98939893 MPolycystinaRADIOLARIATertiaryEoceneA2831S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM98949894 MPolycystinaRADIOLARIATertiaryEoceneA2832S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM98959895 MPolycystinaRADIOLARIATertiaryEoceneA2833S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM98969896 MPolycystinaRADIOLARIATertiaryEoceneA2834S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM98979897 MPolycystinaRADIOLARIATertiaryEoceneA2848S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM98989898 MPolycystinaRADIOLARIATertiaryEoceneA2849S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM98999899 MPolycystinaRADIOLARIATertiaryEoceneA2851S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM99009900 MPolycystinaRADIOLARIATertiaryEoceneA2852S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM99019901 MPolycystinaRADIOLARIATertiaryEoceneA2853S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM99029902 MPolycystinaRADIOLARIATertiaryEoceneA2854S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM99039903 MPolycystinaRADIOLARIATertiaryEoceneA2856S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM99049904 MPolycystinaRADIOLARIATertiaryEoceneA2857S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM99059905 MPolycystinaRADIOLARIATertiaryEoceneA2858S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM99069906 MPolycystinaRADIOLARIATertiaryEoceneA2859S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM99079907 MPolycystinaRADIOLARIATertiaryEoceneA2860S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM99089908 MPolycystinaRADIOLARIATertiaryEoceneA2862S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM99099909 MPolycystinaRADIOLARIATertiaryEoceneA2863S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM1185111851 MPolycystinaRADIOLARIATertiaryEoceneA2835S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM1185211852 MPolycystinaRADIOLARIATertiaryEoceneA2836S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM1185311853 MPolycystinaRADIOLARIATertiaryEoceneA2837S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM1185411854 MPolycystinaRADIOLARIATertiaryEoceneA2839S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM1185511855 MPolycystinaRADIOLARIATertiaryEoceneA2840S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM1185611856 MPolycystinaRADIOLARIATertiaryEoceneA2840S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM1185811858 MPolycystinaRADIOLARIATertiaryEoceneA2842S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM1185911859 MPolycystinaRADIOLARIATertiaryEoceneA2842S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM1186011860 MPolycystinaRADIOLARIATertiaryEoceneA2842S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM1186311863 MPolycystinaRADIOLARIATertiaryEoceneA2843S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM1186411864 MPolycystinaRADIOLARIATertiaryEoceneA2843S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM1186511865 MPolycystinaRADIOLARIATertiaryEoceneA2843S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM1614616146 MPolycystinaRADIOLARIATertiaryEoceneA2848S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM16530.116530.1 MPolythalamea ValvulineriaFORAMINIFERA.TertiaryEoceneA2838S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4926449264 MPolycystinaSpongasteriscus cruciferusRadiolariansyntypeTertiaryEoceneA2845S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4926749267 MPolycystinaSpongurusbilobatusRadiolariansyntypeTertiaryEoceneA2845S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4926949269 MPolycystinaSpongurusbilobatusRadiolariansyntypeTertiaryEoceneA2843S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4929349293 MPolycystinaSpongodiscus communisRadiolariansyntypeTertiaryEoceneA2844S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4931249312 MPolycystinaSpongoprunum markleyenseRadiolarianholotypeTertiaryEoceneA2845S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4931649316 MPolycystinaSpongoprunum markleyense ovum var.RadiolarianholotypeTertiaryEoceneA2845S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4932049320 MPolycystinaCarposphaera minimaRadiolarianholotypeTertiaryEoceneA2845S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4932649326 MPolycystinaSoreumamagnificumRadiolarianholotypeTertiaryEoceneA2840S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4933149331 MPolycystinaStylosphaera megaxyphos megaxyphos RadiolariansyntypeTertiaryEoceneA2845S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4933249332 MPolycystinaStylosphaera megaxyphos megaxyphos RadiolariansyntypeTertiaryEoceneA2845S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4933749337 MPolycystinaEllipsostylus anisoxyphosRadiolariansyntypeTertiaryEoceneA2844S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4934249342 MPolycystinaEllipsostylus parvusRadiolarianholotypeTertiaryEoceneA2845S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4934349343 MPolycystinaCarposphaera magnaporulosaRadiolariansyntypeTertiaryEoceneA2847S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4934749347 MPolycystinaCarposphaera magnaporulosaRadiolariansyntypeTertiaryEoceneA2847S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4934849348 MPolycystinaLithatractuspterosphaerusRadiolarianholotypeTertiaryEoceneA2847S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4935049350 MPolycystinaStylosphaeraRadiolarianhypotypeTertiaryEoceneA2840S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4937349373 MPolycystinaClathrocyclas universaundellaRadiolariansyntypeTertiaryEoceneA2848S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4937449374 MPolycystinaClathrocyclas universaundellaRadiolariansyntypeTertiaryEoceneA2847S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4937949379 MPolycystinaClathrocyclas universalongispina var. RadiolarianholotypeTertiaryEoceneA2840S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4938149381 MPolycystinaClathrocyclas universacylindrica var. RadiolariansyntypeTertiaryEoceneA2845S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North Americayes M4938249382 MPolycystinaClathrocyclas universagrandis var.RadiolarianholotypeTertiaryEoceneA2845S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4938549385 MPolycystinaClathrocyclas universaundellaRadiolariansyntypeTertiaryEoceneA2844S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4939049390 MPolycystinaPhormocyrtis proximaRadiolariansyntypeTertiaryEoceneA2845S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4939549395 MPolycystinaAnthocyrtidium pupaRadiolariansyntypeTertiaryEoceneA2840S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4939949399 MPolycystinaDictyocephalus pulcherrimus pulcherrrimus RadiolariansyntypeTertiaryEoceneA2845S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4940349403 MPolycystinaDictyocephalus pulcherrimus curtisRadiolariansyntypeTertiaryEoceneA2847S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4940449404 MPolycystinaDictyocephalus pulcherrimus curtisRadiolariansyntypeTertiaryEoceneA2847S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4941049410 MPolycystinaTheocyrtisdiabloensisRadiolarianholotypeTertiaryEoceneA2840S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4941749417 MPolycystinaLophophaena auriculaleporisRadiolariansyntypeTertiaryEoceneA2840S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4942049420 MPolycystinaCalocyclassemipolitasemipolitaRadiolariansyntypeTertiaryEoceneA2840S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4943149431 MPolycystinaLophoconustitanathericeraosRadiolariansyntypeTertiaryEoceneA2844S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4943249432 MPolycystinaLophoconustitanathericeraosRadiolariansyntypeTertiaryEoceneA2844S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4943549435 MZygospyrisduplexholotypeTertiaryEoceneA2844S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4943949439 MPolycystinaGorgospyrislamellipesRadiolarianholotypeTertiaryEoceneA2843S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4944249442 MPolycystinaGorgospyriscystophoracystophoraRadiolarianholotypeTertiaryEoceneA2840S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4944349443 MPolycystinaHexaspyrismarkleyensisRadiolarianholotypeTertiaryEoceneA2844S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4944749447 MPolycystinaPentaspyrisparadoxaRadiolarianholotypeTertiaryEoceneA2845S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4944949449 MPolycystinaCantharospyris macropodusRadiolarianholotypeTertiaryEoceneA2840S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4945049450 MPolycystinaGorgospyrishexapodaliaRadiolarianholotypeTertiaryEoceneA2842S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4945149451 MPolycystinaLithocampeminutaRadiolarianholotypeTertiaryEoceneA2840S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4945249452 MPolycystinaLithomitraelizabethaeRadiolarianholotypeTertiaryEoceneA2840S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4945449454 MCoscinodiscophyceae PyxillaintermediaDiatomhypotypeTertiaryEoceneA2840S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4945549455 MPolycystinaLithomelissa acutispinaRadiolarianholotypeTertiaryEoceneA2840S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4945649456 MPolycystinaLithomelissa bifurcataRadiolarianholotypeTertiaryEoceneA2840S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4945749457 MPolycystinaArchicorysurceolataRadiolarianholotypeTertiaryEoceneA2840S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4945949459 MPolycystinaTripilidiumlongipeslongipesRadiolarianholotypeTertiaryEoceneA2845S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4946049460 MPolycystinaTripilidiumlongipesbrevipesRadiolarianholotypeTertiaryEoceneA2847S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4946149461 MPolycystinaBathrocalpis campanulaRADIOLARIA holotypeTertiaryEoceneA2843S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesM4946249462 MPolycystinaTripocyrtiscurtidiscusRadiolarianholotypeTertiaryEoceneA2844S of Antioch, Mt Diablo AreaContra Costa County CaliforniaUnited States North AmericayesV3997439974 VMammaliaTeleocerasTertiaryMioceneV5048Sacramento Northern R.R.Contra Costa County CaliforniaUnited States North AmericayesV3035830358 VMammaliaNannippusTertiaryMioceneV3303Saint Mary's Banks Contra Costa County CaliforniaUnited States North AmericayesV3038530385 VMammaliaPliohippusTertiaryMioceneV3303Saint Mary's Banks Contra Costa County CaliforniaUnited States North AmericayesV3038630386 VMammaliaPliohippusTertiaryMioceneV3303Saint Mary's Banks Contra Costa County CaliforniaUnited States North AmericayesV3211132111 VAvesAnserinaeFIGTertiaryMioceneV3303Saint Mary's Banks Contra Costa County CaliforniaUnited States North America 0000 0000 0704 0796 yesV3288232882 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CaliforniaUnited States North AmericayesV9215292152 VReptiliaGeocheloneTertiaryMioceneV3303Saint Mary's Banks Contra Costa County CaliforniaUnited States North AmericayesV9215392153 VReptiliaGeocheloneTertiaryMioceneV3303Saint Mary's Banks Contra Costa County CaliforniaUnited States North AmericayesV9215492154 VMammaliaBensonomysTertiaryMioceneV3303Saint Mary's Banks Contra Costa County CaliforniaUnited States North AmericayesV9215592155 VAvesBucephalaFIGTertiaryMioceneV3303Saint Mary's Banks Contra Costa County CaliforniaUnited States North AmericayesV9587695876 VReptiliaTertiaryMioceneV3303Saint Mary's Banks Contra Costa County CaliforniaUnited States North AmericayesV132088132088 VReptiliaGeocheloneTertiaryMioceneV3303Saint Mary's Banks Contra Costa County CaliforniaUnited States North AmericayesV158706158706 VReptiliaTertiaryMioceneV3303Saint Mary's Banks Contra Costa County CaliforniaUnited States North AmericayesV3809938099 VMammaliaQuaternaryPleistoceneV4921San Miguel 1Contra Costa County CaliforniaUnited States North AmericayesV3922039220 VMammaliaBisonlatifronsQuaternaryPleistoceneV4921San Miguel 1 Contra Costa County CaliforniaUnited States North AmericayesM3509935099 MOstracodaCypridopsispliocenicaOSTRACODA holotypeTertiaryPliocene587 San Pablo Creek Valley Contra Costa County CaliforniaUnited States North AmericayesM2189021890 MPolythalamea BolivinaparvaFORAMINIFERA. OD = Bolivina hughesi var. parva Cushman & GalliherTertiaryMioceneMF7263San Pablo Dam Contra Costa County CaliforniaUnited States North AmericayesM2189121891 MPolythalamea BolivinaFORAMINIFERA.TertiaryMioceneMF7263San Pablo Dam Contra Costa County CaliforniaUnited States North AmericayesM2189221892 MPolythalamea Buliminamontereyana montereyana FORAMINIFERATertiaryMioceneMF7263San Pablo Dam Contra Costa County CaliforniaUnited States North AmericayesM2189321893 MPolythalamea Buliminamontereyana delmonteensis FORAMINIFERATertiaryMioceneMF7263San Pablo Dam Contra Costa County CaliforniaUnited States North AmericayesM2189521895 MPolythalamea BuliminelladubiaFORAMINIFERA.TertiaryMioceneMF7263San Pablo Dam Contra Costa County CaliforniaUnited States North AmericayesM2189821898 MPolythalamea BuliminellacurtaFORAMINIFERA.TertiaryMioceneMF7263San Pablo Dam Contra Costa County CaliforniaUnited States North AmericayesM2190721907 MPolythalamea PulvinulinellaFORAMINIFERA.TertiaryMioceneMF7263San Pablo Dam Contra Costa County CaliforniaUnited States North AmericayesM2191121911 MPolythalamea DorothiaFORAMINIFERATertiaryMioceneMF7263San Pablo Dam Contra Costa County CaliforniaUnited States North AmericayesM2191621916 MPolythalameaGlobigerinabulloidesFORAMINIFERATertiaryMioceneMF7263San Pablo Dam Contra Costa County CaliforniaUnited States North AmericayesM2237622376 MPolythalamea Virgulinacaliforniensis ticensisFORAMINIFERA. OD = Virgulina californiensis var. ticensis Cushman & Kleinpell.TertiaryMioceneMF7917San Pablo Dam Contra Costa County CaliforniaUnited States North AmericayesM2237722377 MPolythalamea VirgulinaschreibersianaFORAMINIFERATertiaryMioceneMF7263San Pablo Dam Contra Costa County CaliforniaUnited States North AmericayesM2237822378 MPolythalamea VirgulinellamiocenicaFORAMINIFERA. OD = Virgulina miocenica Cushman & PontonTertiaryMioceneMF7917San Pablo Dam Contra Costa County CaliforniaUnited States North AmericayesM2237922379 MPolythalamea Virgulinacaliforniensis ticensisFORAMINIFERA. OD = Virgulina californiensis var. ticensis Cushman & Kleinpell.TertiaryMioceneMF7918San Pablo Dam Contra Costa County CaliforniaUnited States North AmericayesM3592835928 MPolythalamea BolivinaticensisFORAMINIFERA. holotypeTertiaryMioceneMF7263San Pablo Dam Contra Costa County CaliforniaUnited States North AmericayesM3592935929 MPolythalamea SuggrundacalifornicaFORAMINIFERA. holotypeTertiaryMioceneMF7263San Pablo Dam Contra Costa County CaliforniaUnited States North AmericayesM3593035930 MPolythalamea Pulvinulinella gyroidinaformisFORAMINIFERA. hypotypeTertiaryMioceneMF7263San Pablo Dam Contra Costa County CaliforniaUnited States North AmericayesV2985429854 VMammaliaDesmostylusFIGTertiaryMioceneV3408San Pablo Dam Contra Costa County CaliforniaUnited States North AmericayesV9587195871 VMammaliaDesmostylus hesperusPUBLTertiaryMioceneV3408San Pablo Dam Contra Costa County CaliforniaUnited States North AmericayesV5754457544 VMammaliaProsthennopsTertiaryMioceneV6029San Pablo Dam Road Contra Costa County CaliforniaUnited States North AmericayesV3469134691 VMammaliaBisonQuaternaryPleistoceneV3927San Ramon Creek Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV6404064040 VMammaliaHypolagusTertiaryMioceneV6310San Ramon Valley 1 Contra Costa County CaliforniaUnited States North AmericayesV6412764127 VMammaliaTertiaryMioceneV6310San Ramon Valley 1 Contra Costa County CaliforniaUnited States North AmericayesV2127821278 VMammaliaMammuthusQuaternaryPleistoceneV65254Sand Mound Slough Contra Costa County CaliforniaUnited States North AmericayesV2128721287 VMammaliaMammuthus columbiQuaternaryPleistoceneV65254Sand Mound Slough Contra Costa County CaliforniaUnited States North AmericayesV4494844948 VMammaliaHipparionTertiaryMioceneV5507Santa Maria Church Contra Costa County CaliforniaUnited States North AmericayesV4966749667 VMammaliaSciurusTertiaryPlioceneV48135SciurusContra Costa County CaliforniaUnited States North AmericayesV9593295932 VMammaliaTertiaryMioceneV5314Scow Canyon Contra Costa County CaliforniaUnited States North AmericayesV5579755797 VMammaliaPseudaelurusTertiaryMioceneV5926SelbContra Costa County CaliforniaUnited States North AmericayesV5579855798 VMammaliaTalpinaeTertiaryMioceneV5926SelbContra Costa County CaliforniaUnited States North AmericayesV5579955799 VMammaliaMerychyusmajorPUBLTertiaryMioceneV5926SelbContra Costa County CaliforniaUnited States North AmericayesV5580055800 VMammaliaNannippustehonensisTertiaryMioceneV5926SelbContra Costa County CaliforniaUnited States North AmericayesV5580155801 VMammaliaTertiaryMioceneV5926SelbContra Costa County CaliforniaUnited States North AmericayesV5580255802 VMammaliaNannippusTertiaryMioceneV5926SelbContra Costa County CaliforniaUnited States North AmericayesV5580355803 VMammaliaHipparionTertiaryMioceneV5926SelbContra Costa County CaliforniaUnited States North AmericayesV5580455804 VMammaliaHipparionTertiaryMioceneV5926SelbContra Costa County CaliforniaUnited States North AmericayesV5580555805 VMammaliaUstatochoerusTertiaryMioceneV5926SelbContra Costa County CaliforniaUnited States North AmericayesV5580655806 VMammaliaUstatochoerusTertiaryMioceneV5926SelbContra Costa County CaliforniaUnited States North AmericayesV5580755807 VMammaliaUstatochoerusTertiaryMioceneV5926SelbContra Costa County CaliforniaUnited States North AmericayesV5580855808 VMammaliaNannippusTertiaryMioceneV5926SelbContra Costa County CaliforniaUnited States North AmericayesV5580955809 VMammaliaNannippusTertiaryMioceneV5926SelbContra Costa County CaliforniaUnited States North AmericayesV5581055810 VMammaliaNannippusTertiaryMioceneV5926SelbContra Costa County CaliforniaUnited States North Americayes V5581155811 VMammaliaNannippusTertiaryMioceneV5926SelbContra Costa County CaliforniaUnited States North AmericayesV5581255812 VReptiliaTertiaryMioceneV5926SelbContra Costa County CaliforniaUnited States North AmericayesV5581355813 VReptiliaTertiaryMioceneV5926SelbContra Costa County CaliforniaUnited States North AmericayesV5581855818 VMammaliaGliroideaTertiaryMioceneV5926SelbContra Costa County CaliforniaUnited States North AmericayesV5581955819 VMammaliaNannippusTertiaryMioceneV5926SelbContra Costa County CaliforniaUnited States North AmericayesV5588255882 VMammaliaTertiaryMioceneV5926SelbContra Costa County CaliforniaUnited States North AmericayesV5588355883 VMammaliaHipparionTertiaryMioceneV5926SelbContra Costa County CaliforniaUnited States North AmericayesV5588455884 VMammaliaTertiaryMioceneV5926SelbContra Costa County CaliforniaUnited States North AmericayesV5588555885 VMammaliaNannippusTertiaryMioceneV5926SelbContra Costa County CaliforniaUnited States North AmericayesV5628256282 VMammaliaHipparionTertiaryMioceneV5926SelbContra Costa County CaliforniaUnited States North AmericayesV8980289802 VMammaliaUstatochoerusTertiaryMioceneV5926SelbContra Costa CountyCaliforniaUnited StatesNorth AmericayesV9487594875 VMammaliaNannippusTertiaryMioceneV5926SelbContra Costa County CaliforniaUnited States North AmericayesV9487694876 VMammaliaEquinaeTertiaryMioceneV5926SelbContra Costa County CaliforniaUnited States North AmericayesI161687161687 IAnthozoaDesmophyllus cristaGalliTertiaryPaleoceneA4304SelbyContra Costa County CaliforniaUnited States North AmericayesV3277732777 VMammaliaAllodesmuskernensisTertiaryMioceneV3521Selby 1Contra Costa County CaliforniaUnited States North AmericayesM2166921669 MPolythalamea Nonionmontereyanum carmeloensis FORAMINIFERATertiaryMioceneMF7238Selby Smelter Contra Costa County CaliforniaUnited States North AmericayesV4116541165 VMammaliaDesmostylusTertiaryMioceneV5202Selby Smelter Contra Costa County CaliforniaUnited States North AmericayesV8299082990 VMammaliaTertiaryMioceneV5202Selby Smelter Contra Costa County CaliforniaUnited States North AmericayesM81708170 MPolythalameaFORAMINIFERATertiaryPaleoceneA1716Selby Station Contra Costa County CaliforniaUnited States North AmericayesM81718171 MPolythalameaFORAMINIFERATertiaryPaleoceneA1716Selby Station Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV113311113311 VMammaliaGomphotherium angustidensTertiaryMioceneV75017Shady Picnic Area Contra Costa County CaliforniaUnited States North AmericayesV7481474814 VMammaliaBisonQuaternaryPleistoceneV6628Shell OilContra Costa County CaliforniaUnited States North AmericayesI3041730417 IGastropodaSiphonaliacarquinensisHolotypeTertiaryPaleoceneA1452Shell Oil Tank Farm Contra Costa County CaliforniaUnited States North AmericayesV2673326733 VMammaliaNannippustehonensisFIGTertiaryMioceneV2403Shell Ridge 2 Contra Costa County CaliforniaUnited States North AmericayesV177574177574 VMammaliaMysticetiTertiaryMioceneV99786Shell Ridge Cetacean Contra Costa County CaliforniaUnited States North AmericayesI1100911009 IEchinoideaHemiasteralamedensisHolotypeCretaceousLate Cretaceous 3140‐Shepherds Canyon Contra Costa County CaliforniaUnited States North AmericayesI1101411014 IEchinoideaCatopygus?californicusHolotypeCretaceousLate Cretaceous 3140‐Shepherds Canyon Contra Costa County CaliforniaUnited StatesNorth AmericayesV1982119821VMammaliaPliaucheniaPUBLTertiaryMiocene‐707 Siesta Valley 1 Contra Costa County CaliforniaUnited States North AmericayesV3306133061 VMammaliaGomphotheriumPUBLTertiaryMioceneV3652Siesta Valley 2 Contra Costa County CaliforniaUnited States North AmericayesV4529245292 VMammaliaPliohippusTertiaryMioceneV3652Siesta Valley 2 Contra Costa County CaliforniaUnited States North AmericayesV3811738117 VMammaliaMammutTertiaryMioceneV4604Siesta Valley 3 Contra Costa County CaliforniaUnited States North AmericayesV3811838118 VMammaliaMerycodusTertiaryMioceneV4604Siesta Valley 3 Contra Costa County CaliforniaUnited States North AmericayesV3811938119 VMammaliaTertiaryMioceneV4604Siesta Valley 3 Contra Costa County CaliforniaUnited States North AmericayesV9489094890 VMammaliaHypolagusTertiaryMioceneV4604Siesta Valley 3 Contra Costa County CaliforniaUnited StatesNorth AmericayesV8126781267VMammaliaTertiaryMioceneV68113Siesta Valley 4 Contra Costa County CaliforniaUnited States North AmericayesV8273682736 VMammaliaTertiaryMioceneV68113Siesta Valley 4 Contra Costa County CaliforniaUnited States North AmericayesV114543114543 VMammaliaPliohippusTertiaryMioceneV75231Siesta Valley 5 Contra Costa County CaliforniaUnited States North AmericayesM2190221902 MPolythalamea Cyclammina cancellataobesaFORAMINIFERATertiaryMioceneMF7265SobranteContra Costa County CaliforniaUnited States North AmericayesM2190521905 MPolythalamea Cyclammina clarkiFORAMINIFERA. OD = Nonionina clarki Hanna.TertiaryMioceneMF7265SobranteContra Costa County CaliforniaUnited States North AmericayesM2191021910 MPolythalamea Cyclammina incisaFORAMINIFERA. OD = Haplophragmium incisum Stache.TertiaryMioceneMF7265SobranteContra Costa County CaliforniaUnited States North AmericayesM2191221912 MPolythalamea RobuluswarmaniFORAMINIFERA. OD = Robulus nikobarensis var. warmani Barbat & Estorff.TertiaryMioceneMF7265SobranteContra Costa County CaliforniaUnited States North AmericayesM2191521915 MPolythalamea GuttulinaFORAMINIFERATertiaryMioceneMF7266SobranteContra Costa County CaliforniaUnited States North AmericayesM2191721917 MPolythalamea GlandulinalaevigataFORAMINIFERA. OD = Nodosaria (Glanduline) laevigata Orbigny.TertiaryMioceneMF7265SobranteContra Costa County CaliforniaUnited States North AmericayesM2191821918 MPolythalamea GaudryinatrinitatensisFORAMINIFERATertiaryMioceneMF7265SobranteContra Costa County CaliforniaUnited States North AmericayesM2191921919 MPolythalamea GaudryinaatlanticaFORAMINIFERA. OD = Textularia atlantica Bailey.TertiaryMioceneMF7265SobranteContra Costa County CaliforniaUnited States North AmericayesM2192021920 MPolythalamea ReophaxpiluliferFORAMINIFERATertiaryMioceneMF7265SobranteContra Costa County CaliforniaUnited States North AmericayesM2192621926 MPolythalamea TextularialaevigataFORAMINIFERATertiaryMioceneMF7266SobranteContra Costa County CaliforniaUnited States North AmericayesM2237022370 MPolythalamea SiphogenerinaFORAMINIFERATertiaryMioceneMF7265SobranteContra Costa County CaliforniaUnited States North AmericayesM2237322373 MPolythalamea VerneuilinaFORAMINIFERATertiaryMioceneMF7265SobranteContra Costa County CaliforniaUnited States North AmericayesM2188621886 MPolythalamea BathysiphonFORAMINIFERATertiaryMioceneMF7522Sobrante Anticline Contra Costa County CaliforniaUnited States North AmericayesM2189921899 MPolythalamea ClavulinacommunisFORAMINIFERATertiaryMioceneMF7522Sobrante Anticline Contra Costa County CaliforniaUnited States North AmericayesM2190021900 MPolythalamea ClavulinaflintianaFORAMINIFERATertiaryMioceneMF7522Sobrante Anticline Contra Costa County CaliforniaUnited States North AmericayesM2190121901 MPolythalamea ClavulinapatensFORAMINIFERATertiaryMioceneMF7522Sobrante Anticline Contra Costa County CaliforniaUnited States North AmericayesM2190921909 MPolythalamea EpistominaramonensisFORAMINIFERATertiaryMioceneMF7252Sobrante Anticline Contra Costa County CaliforniaUnited States North AmericayesI1440514405 IGastropodaTejoniamoragaiHypotypeTertiaryEoceneA1307SomersvilleContra Costa CountyCaliforniaUnited StatesNorth AmericayesP19441944 PMagnoliopsida AlnuscorrallinaFIG.TertiaryMiocenePA969South Mt. Diablo GeneralContra Costa County CaliforniaUnited States North AmericayesP19451945 PMagnoliopsida AlnuscorrallinaFIG.TertiaryMiocenePA969South Mt. Diablo GeneralContra Costa County CaliforniaUnited States North AmericayesP19551955 PMagnoliopsida BetulaparcedentataFIG.TertiaryMiocenePA969South Mt. Diablo GeneralContra Costa County CaliforniaUnited States North AmericayesP19561956 PSphenopsida EquisetumFIG.TertiaryMiocenePA969South Mt. Diablo GeneralContra Costa County CaliforniaUnited States North AmericayesP19581958 PMagnoliopsida AlnuscorrallinaFIG.TertiaryMiocenePA969South Mt. Diablo GeneralContra Costa County CaliforniaUnited States North AmericayesP330330 PMagnoliopsida PopulusalexanderiplesiotypeTertiaryMiocene162 St. Marys College Contra Costa County CaliforniaUnited States North AmericayesP332332 PMagnoliopsida PopulusprefremontiicotypeTertiaryMiocene162 St. Marys College Contra Costa County CaliforniaUnited States North AmericayesP336336 PMagnoliopsida SalixcoalingensiscotypeTertiaryMiocene162 St. Marys College Contra Costa County CaliforniaUnited States North AmericayesP339339 PMagnoliopsida SalixTertiaryMiocene162 St. Marys College Contra Costa County CaliforniaUnited States North AmericayesP354354 PMagnoliopsida QuercushannibalicotypeTertiaryMiocene162 St. Marys College Contra Costa County CaliforniaUnited States North AmericayesP355355 PMagnoliopsida QuercushannibalicotypeTertiaryMiocene162 St. Marys College Contra Costa County CaliforniaUnited States North AmericayesP356356 PMagnoliopsida QuercushannibalicotypeTertiaryMiocene162 St. Marys College Contra Costa County CaliforniaUnited States North AmericayesP360360 PMagnoliopsida QuercusorindensiscotypeTertiaryMiocene162 St. Marys CollegeContra Costa CountyCaliforniaUnited States North AmericayesP361361 PMagnoliopsida QuercusorindensiscotypeTertiaryMiocene162 St. Marys College Contra Costa County CaliforniaUnited States North AmericayesP362362 PMagnoliopsida QuercusorindensiscotypeTertiaryMiocene162 St. Marys College Contra Costa County CaliforniaUnited States North AmericayesP388388 PMagnoliopsida PrunusmerriamiTertiaryMiocene162 St. Marys College Contra Costa County CaliforniaUnited States North AmericayesP394394 PMagnoliopsida RhusTertiaryMiocene162 St. Marys College Contra Costa County CaliforniaUnited States North AmericayesP15961596 PLiliopsidaTyphalesquereuxiTertiaryMiocene162 St. Marys College Contra Costa County CaliforniaUnited States North AmericayesP15971597 PLiliopsidaPoacitesTertiaryMiocene162 St. Marys College Contra Costa County CaliforniaUnited States North AmericayesP15981598 PMagnoliopsida PopulusparcedentataplesiotypeTertiaryMiocene162 St. Marys College Contra Costa CountyCaliforniaUnited StatesNorth AmericayesP15991599 PMagnoliopsida 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Silicosigmoilina californicaFORAMINIFERA hypotypeTertiaryPaleoceneA6660W side of rd to Selby Contra Costa CountyCaliforniaUnited StatesNorth AmericayesV2411124111 VMammaliaTertiaryMiocene‐303 Walnut Creek 2 Contra Costa County CaliforniaUnited States North AmericayesV4010640106 VMammaliaCapromeryxTertiaryPlioceneV5104Walnut Creek Se 1 Contra Costa County CaliforniaUnited States North AmericayesV5798157981 VMammaliaHipparionTertiaryMioceneV6033WeberContra Costa County CaliforniaUnited States North AmericayesV5820258202 VMammaliaMammuthusTertiaryMioceneV6033WeberContra Costa County CaliforniaUnited States North AmericayesV6374463744 VMammaliaTertiaryMioceneV6239WhittenContra Costa County CaliforniaUnited States North AmericayesM3509535095 MOstracodaCyclocypriscalifornicaOSTRACODA holotypeTertiaryPliocene589 Wildcat Canyon Contra Costa County CaliforniaUnited States North AmericayesM3510035100 MOstracodaCandonacandidadepressa var. OSTRACODA holotypeTertiaryPliocene589 Wildcat Canyon Contra Costa County CaliforniaUnited States North AmericayesM3573835738 MOstracodaCandonagracilisOSTRACODA holotypeTertiaryPliocene589 Wildcat Canyon Contra Costa County CaliforniaUnited StatesNorth AmericayesV7597975979VMammaliaBisonQuaternaryRecentV6643Wildcat Canyon Contra Costa County CaliforniaUnited States North AmericayesM3509835098 MErpetocypris lataOstracodeholotypeTertiaryPliocene585 Wildcat Canyon Caves Contra Costa County CaliforniaUnited States North AmericayesV3599835998 VMammaliaEquussimplicidensFIGTertiaryPlioceneV4017Willow PassContra Costa County CaliforniaUnited States North AmericayesV3817138171 VMammaliaTertiaryMioceneV4614Willow Pass E Contra Costa County CaliforniaUnited States North AmericayesV4215642156 VMammaliaGomphotheriumTertiaryMioceneV5224Wills PitContra Costa County CaliforniaUnited States North AmericayesI1201412014 IAnthozoaTrochocyathus pergranulatusCotypeTertiaryMiocene484‐Windy Point Contra Costa County CaliforniaUnited States North AmericayesI1201512015 IAnthozoaTrochocyathus pergranulatusCotypeTertiaryMiocene484‐Windy Point Contra Costa County CaliforniaUnited States North AmericayesI1004610046 IBivalviaPharellaaltaPlastoparatype CretaceousD9860Contra Costa County CaliforniaUnited States North AmericayesI1006110061 IEchinoideaAstrodapsistumiduscierboensisHolotypeTertiaryMiocene522‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1006210062 IEchinoideaAstrodapsiscierboensisHypotypeTertiaryMiocene526‐Contra Costa County CaliforniaUnited States North AmericayesI1006310063 IEchinoideaScutellapabloensisHolotypeTertiaryMiocene232‐Contra Costa County CaliforniaUnited States North AmericayesI1006510065 IEchinoideaAstrodapsisaltusHolotypeTertiaryMiocene1950‐Contra Costa County CaliforniaUnited States North AmericayesI1016610166 IGastropodaLymnaeacontracostaHolotype?TertiaryPlioceneIP12002Contra Costa County CaliforniaUnited States North AmericayesI1031510315 IBivalviaMeekianavisHypotypeCretaceousLate Cretaceous 2609‐Contra Costa County CaliforniaUnited States North AmericayesI1061810618 IBivalviaPisidiumoccidentaleSyntypeTertiaryMiocene753‐Contra Costa County CaliforniaUnited States North AmericayesI1074010740 IMalacostraca CancerdanaiHolotypeTertiaryMioceneD3800Contra Costa County CaliforniaUnited States North AmericayesI1100211002 IEchinoideaScutellagabbiHypotypeTertiaryMiocene1282‐Contra Costa County CaliforniaUnited States North AmericayesI1100311003 IEchinoideaAstrodapsismajorCotypeTertiaryPliocene1742‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1100411004 IEchinoideaAstrodapsiswhitneyiHypotypeTertiaryMiocene1227‐Contra Costa County CaliforniaUnited States North AmericayesI1100511005 IEchinoideaScutellagabbitenuisHolotypeTertiaryMioceneD9872Contra Costa County CaliforniaUnited States North AmericayesI1100611006 IEchinoideaAstrodapsistumidusHypotypeTertiaryMiocene56‐Contra Costa County CaliforniaUnited States North AmericayesI1100711007 IEchinoideaScutellagabbiHypotypeTertiaryMiocene1478‐Contra Costa County CaliforniaUnited States North AmericayesI1102211022 IEchinoideaDendrasterhesperisgibbosusHolotypeTertiaryMiocene525‐Contra Costa County CaliforniaUnited States North AmericayesI1102611026 IEchinoideaSchizasterleconteiHolotypeTertiaryPaleocene337‐Contra Costa County CaliforniaUnited States North AmericayesI1102911029 IEchinoideaScutasterandersoniHolotypeTertiaryEocene?424‐Contra Costa County CaliforniaUnited States North AmericayesI1103611036 IEchinoideaAstrodapsiswhitneyiHypotypeTertiaryMiocene1227‐Contra Costa County CaliforniaUnited States North AmericayesI1110611106 IBivalviaSpisulaoccidentalisHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1110711107 IBivalviaCallocardiacalifornicaHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1110811108 IBivalviaCallocardiacalifornicaParatypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1110911109 IBivalviaLedapulchrisinuosaHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1111011110 IBivalviaYoldiacooperitenuissimaHolotypeTertiaryOligocene798‐Contra Costa County CaliforniaUnited States North AmericayesI1111111111 IBivalviaPandoraacutirostrataHolotypeTertiaryOligocene1132‐Contra Costa County CaliforniaUnited States North AmericayesI1111211112 IBivalviaPandoraacutirostrataParatypeTertiaryOligocene1132‐Contra Costa County CaliforniaUnited States North AmericayesI1111311113 IBivalviaCallocardiacalifornicaParatypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1111411114 IBivalviaMyaincognitaHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1111611116 IBivalviaMacrocallista? incognitaHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1111711117 IBivalviaSpisularamonensisHypotypeTertiaryOligocene1458‐Contra Costa County CaliforniaUnited States North AmericayesI1111811118 IBivalviaSpisulaalbariavar. ramonensisHolotypeTertiaryOligocene1687‐Contra Costa County CaliforniaUnited States North AmericayesI1111911119 IBivalviaSpisularamonensisattenuataHolotypeTertiaryOligocene1167‐Contra Costa County CaliforniaUnited States North AmericayesI1112011120 IBivalviaMetisrostellataHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1112211122 IBivalviaModioluspittsburgensisHolotypeTertiaryMiocene1895‐Contra Costa County CaliforniaUnited States North AmericayesI1112311123 IBivalviaChionelineolataHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1112411124 IBivalviaChionemediostriataParatypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1112511125 IBivalviaChionemediostriataParatypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1112611126 IBivalviaChionelineolataParatypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1112811128 IBivalviaTellinatenuilineataParatypeTertiaryMiocene1175‐Contra Costa County CaliforniaUnited States North AmericayesI1112911129 IBivalviaPitarlorenzanaHolotypeTertiaryOligocene1686‐Contra Costa County CaliforniaUnited States North AmericayesI1113011130 IBivalviaTellinatenuilineataHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1113211132 IBivalviaSolencurtusHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1113311133 IBivalviaSolengravidusHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1113711137 IBivalviaAntigonaneglectaParatypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1113811138 IBivalviaPectengabbiHolotypeTertiaryOligocene1311‐Contra Costa County CaliforniaUnited States North AmericayesI1113911139 IBivalviaPectengabbiParatypeTertiaryOligocene1311‐Contra Costa County CaliforniaUnited States North AmericayesI1114011140 IBivalviaPeriplomaundulataParatypeTertiaryOligocene1309‐Contra Costa County CaliforniaUnited States North AmericayesI1114111141 IBivalviaPeriplomaundulataHolotypeTertiaryOligocene1309‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1114211142 IBivalviaAntigonamathewsoniiHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1114311143 IBivalviaAntigonamathewsoniiHypotypeTertiaryOligoceneIP12049Contra Costa County CaliforniaUnited States North AmericayesI1114511145 IBivalviaDosiniamathewsoniiHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1114811148 IBivalviaDosiniamathewsoniiHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1114911149 IBivalviaDosiniamathewsoniiHomeotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1115011150 IBivalviaGlycymerisbuwaldiHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1115211152 IGastropodaMolopophorus biplicatusHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1115311153 IBivalviaMytilusarnoldiHolotypeTertiaryMiocene,Oligocene 78‐Contra Costa County CaliforniaUnited States North AmericayesI1115411154 IBivalviaMalletiapackardiHolotypeTertiaryOligocene2033‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1115511155 IBivalviaMacrocallista weaveriHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1115811158 IGastropodaMolopophorus biplicatusHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1116111161 IGastropodaPseudoperissolax merriamiHolotypeTertiaryOligocene2033‐Contra Costa County CaliforniaUnited States North AmericayesI1116311163 IBivalviaYoldiacooperitenuissimaParatypeTertiaryOligocene2754‐Contra Costa County CaliforniaUnited States North AmericayesI1116511165 IBivalviaCardiumkirkerensisHolotypeTertiaryOligocene2033‐Contra Costa County CaliforniaUnited States North AmericayesI1116711167 IBivalviaLedaramonensisHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1116811168 IBivalviaThraciacondoniHypotypeTertiaryOligocene517‐Contra Costa County CaliforniaUnited States North AmericayesI1117011170 IBivalviaYoldiacooperitenuissimaParatypeTertiaryOligocene1309‐Contra Costa County CaliforniaUnited States North AmericayesI1117111171 IBivalviaDiplodontastephensoniHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited StatesNorth AmericayesI1117211172IBivalviaArcamediaimpressaParatypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1117311173 IBivalviaDosiniamathewsoniiHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1117411174 IBivalviaArcamediaimpressaHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1117511175 IBivalviaHalonanushorniielususHypotypeTertiaryPaleocene3579‐Contra Costa County CaliforniaUnited States North AmericayesI1117811178 IBivalviaChionecryptolineataHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1117911179 IBivalviaChionecryptolineataParatypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1118011180 IBivalviaChionecryptolineataParatypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1118111181 IBivalviaChionemediostriataHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1118211182 IBivalviaChionemediostriataParatypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1118311183 IBivalviaGlycymeristenuimbricataHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1118411184 IBivalviaNuculabifidaHolotypeTertiaryOligocene331‐Contra Costa County CaliforniaUnited States North AmericayesI1118511185 IBivalviaGlycymeristenuimbricataParatypeTertiaryEocene1173‐Contra Costa County CaliforniaUnited States North AmericayesI1118611186 IBivalviaArcasubmontereyanaHolotypeTertiaryOligocene52‐Contra Costa County CaliforniaUnited States North AmericayesI1118711187 IBivalviaPsammobiaaff. edentulaHypotypeTertiaryOligocene1311‐Contra Costa County CaliforniaUnited States North AmericayesI1118811188 IBivalviaGlycymeristenuimbricataParatypeTertiaryOligocene2754‐Contra Costa County CaliforniaUnited States North AmericayesI1118911189 IBivalviaArcamediaimpressaParatypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1119011190 IAnthozoaDendrophyllia californianaHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1119211192 IBivalviaTellinaoregonensisHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1119311193 IBivalviaCyathodontaweaveriParatypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1119411194 IBivalviaNuculapostangulataParatypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1119511195 IBivalviaAcilamutamarkleyensisParatypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1119611196 IBivalviaAcilamutamarkleyensisHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North Americayes I1119811198 IBivalviaCardiumdickersoniParatypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1119911199 IBivalviaAcilamutaParatypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1120011200 IBivalviaAcilamutaParatypeTertiaryOligocene199‐Contra Costa County CaliforniaUnited States North AmericayesI1120211202 IBivalviaPectenalternilineatusHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1120311203 IBivalviaPectenalternilineatusParatypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1120411204 IBivalviaAnomiainconspicuaParatypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1120511205 IBivalviaAnomiainconspicuaHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1120611206 IBivalviaLedaelongorostrataHolotypeTertiaryOligocene2755‐Contra Costa County CaliforniaUnited States North AmericayesI1120711207 IBivalviaCardiumdickersoniHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1120911209 IGastropodaBursamathewsoniHypotypeTertiaryEocene1173‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1121011210 IGastropodaBursamathewsoniHypotypeTertiaryOligocene2754‐Contra Costa County CaliforniaUnited States North AmericayesI1121211212 IGastropodaNaticarecluzianavar. andersoniHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1121311213 IMaxillopoda Balanussp. AHypotypeTertiaryOligocene1162‐Contra Costa County CaliforniaUnited States North AmericayesI1121411214 IGastropodaSearlesiadalliParatypeTertiaryOligocene2754‐Contra Costa County CaliforniaUnited States North AmericayesI1121511215 IGastropodaSearlesiadalliHolotypeTertiaryOligocene2754‐Contra Costa County CaliforniaUnited States North AmericayesI1121611216 IMaxillopoda Balanussp. BHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1121811218 IGastropodaCylichnaramonensisHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1122111221 IGastropodaColumbellatenuilineataHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1122211222 IGastropodaChrysodomus? pulcherrimusHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1122511225 IGastropodaPotamidesbranneriParatypeTertiaryOligocene52‐Contra Costa County CaliforniaUnited States North AmericayesI1122611226 IGastropodaFusinushecoxiHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1122711227 IScaphopoda DentaliumradiolineataHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1122811228 IGastropodaCalliostomalawsoniParatypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1122911229 IGastropodaPotamidesbranneriHolotypeTertiaryOligocene2754‐Contra Costa County CaliforniaUnited States North AmericayesI1123011230 IGastropodaPotamidesbranneriParatypeTertiaryOligocene52‐Contra Costa County CaliforniaUnited States North AmericayesI1123111231 IGastropodaCalliostomalawsoniHolotypeTertiaryOligocene331‐Contra Costa County CaliforniaUnited States North AmericayesI1123211232 IGastropodaTurrisaltuscollusHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1123311233 IGastropodaPersecorrugatumHolotypeTertiaryOligocene2754‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1123411234 IGastropodaMurexsobrantensisHolotypeTertiaryOligocene1164‐Contra Costa County CaliforniaUnited States North AmericayesI1123511235 IGastropodaCancellariaandersoniHolotypeTertiaryOligocene1309‐Contra Costa County CaliforniaUnited States North AmericayesI1123611236 IGastropodaCancellariasobrantensisHolotypeTertiaryOligocene2754‐Contra Costa County CaliforniaUnited States North AmericayesI1123711237 IGastropodaCancellariaramonensisHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1123811238 IGastropodaClavellacalifornicaHolotypeTertiaryOligocene76‐Contra Costa County CaliforniaUnited States North AmericayesI1123911239 IGastropodaAgasomaacuminatumHypotypeTertiaryOligocene1310‐Contra Costa County CaliforniaUnited States North AmericayesI1124011240 IGastropodaEpitoniumventricosumHolotypeTertiaryMiocene1165‐Contra Costa County CaliforniaUnited States North AmericayesI1124411244 IGastropodaMiopleionasp.HypotypeTertiaryMiocene1165‐Contra Costa County CaliforniaUnited States North AmericayesI1124611246 IGastropodaThaispackiHolotypeTertiaryOligocene1309‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1124811248 IGastropodaAncillafishiiHypotypeTertiaryOligocene1132‐Contra Costa County CaliforniaUnited States North AmericayesI1124911249 IGastropodaAncillafishiiHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1125011250 IGastropodaNaticagabbiParatypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1125111251 IGastropodaOlivellaquadriplicataHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1125211252 IGastropodaNaticagabbiHolotypeTertiaryOligocene1311‐Contra Costa County CaliforniaUnited States North AmericayesI1125311253 IGastropodaAncillafishiiHypotypeTertiaryOligocene52‐Contra Costa County CaliforniaUnited States North AmericayesI1125411254 IGastropodaActaeonkirkerensisHolotypeTertiaryOligocene76‐Contra Costa County CaliforniaUnited States North AmericayesI1125511255 IGastropodaNaticagabbiParatypeTertiaryOligocene1309‐Contra Costa County CaliforniaUnited States North AmericayesI1125711257 IGastropodaNaticaramonensisHolotypeTertiaryOligocene1131‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1125811258 ICephalopoda Aturiasp.HypotypeTertiaryEocene1173‐Contra Costa County CaliforniaUnited States North AmericayesI1126011260 IBivalviaNuculapostangulataHolotypeTertiaryOligocene2754‐Contra Costa County CaliforniaUnited States North AmericayesI1126111261 IScaphopoda DentaliumradiolineatasobrantensisHolotypeTertiaryEocene1173‐Contra Costa County CaliforniaUnited States North AmericayesI1126211262 IPolychaetaSerpularectiformisHolotypeTertiaryOligocene52‐Contra Costa County CaliforniaUnited States North AmericayesI1126311263 IGastropodaFusinuslincolnensisHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1126611266 IGastropodaAgasomagravidumHolotypeTertiaryOligocene2754‐Contra Costa County CaliforniaUnited States North AmericayesI1126811268 IBivalviaSpisula?saxadomoidesHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1126911269 IGastropodaTurritellaporterensisvar. sobrantensisHolotypeTertiaryOligocene3051‐Contra Costa County CaliforniaUnited States North AmericayesI1127711277 IBivalviaThraciacondoniHypotypeTertiaryOligocene1131‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1127811278 IBivalviaDonaxsp. indet.TertiaryOligocene1314‐Contra Costa County CaliforniaUnited States North AmericayesI1128111281 IBivalviaPitar?sp.HypotypeTertiaryMiocene,Oligocene 78‐Contra Costa County CaliforniaUnited States North AmericayesI1128211282 IBivalviaMytilusmathewsoniiHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1128411284 IGastropodaCancellaria?sp. BHypotypeTertiaryOligocene3051‐Contra Costa County CaliforniaUnited States North AmericayesI1128511285 IGastropodaTurrissp.HypotypeTertiaryOligocene3051‐Contra Costa County CaliforniaUnited States North AmericayesI1128911289 IBivalviaPandoraacutirostrataParatypeTertiaryOligocene1132‐Contra Costa County CaliforniaUnited States North AmericayesI1132211322 IAnthozoaSiderastreaclarkiHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1132711327 IEchinoideaAstrodapsistumidusHypotypeTertiaryMioceneIP12082Contra Costa County CaliforniaUnited States North AmericayesI1132911329 IEchinoideaAstrodapsistumidusNeotypeTertiaryMioceneIP12082Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1133011330 IEchinoideaSpatanguspachecoensisCotypeTertiaryEocene428‐Contra Costa County CaliforniaUnited States North AmericayesI1133111331 IEchinoideaSpatanguspachecoensisCotypeTertiaryEocene428‐Contra Costa County CaliforniaUnited States North AmericayesI1133511335 IEchinoideaAstrodapsisbrewerianusHolotypeTertiaryMiocene1191‐Contra Costa County CaliforniaUnited States North AmericayesI1133711337 IEchinoideaAstrodapsismajorCotypeTertiaryPliocene1742‐Contra Costa County CaliforniaUnited States North AmericayesI1134111341 IEchinoideaSchizasterleconteiHypotypeTertiaryEoceneIP12077Contra Costa County CaliforniaUnited States North AmericayesI1134211342 IEchinoideaSchizastermartinezensisHolotypeTertiaryPaleocene241‐Contra Costa County CaliforniaUnited States North AmericayesI1134911349 IEchinoideaLinthia?californicaHolotypeTertiaryMioceneIP12078Contra Costa County CaliforniaUnited States North AmericayesI1135211352 IEchinoideaDendrasteroregonensismajorCotypeTertiaryPliocene71‐Contra Costa County CaliforniaUnited States North AmericayesI1136811368 IEchinoideaScutellagabbiHypotypeTertiaryMioceneIP12082Contra Costa County CaliforniaUnited States North AmericayesI1136911369 IEchinoideaScutellagabbiHypotypeTertiaryMiocene1282‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1137011370 IEchinoideaScutellagabbivar. tenuisPlesiotypeTertiaryMioceneIP219Contra Costa County CaliforniaUnited States North AmericayesI1137111371 IEchinoideaAstrodapsisbrewerianusHypotypeTertiaryMioceneIP12079Contra Costa County CaliforniaUnited States North AmericayesI1137811378 IBivalviaPinnabarrowsiParatypeTertiaryPaleocene1547‐Contra Costa County CaliforniaUnited States North AmericayesI1138711387 IEchinoideaSchizasterdiabloensisHolotypeTertiaryEocene1427‐Contra Costa County CaliforniaUnited States North AmericayesI1138811388 IEchinoideaSchizastercordiformisHolotypeTertiaryPaleocene1743‐Contra Costa County CaliforniaUnited States North AmericayesI1139111391 IEchinoideaAstrodapsiswhitneyiHypotypeTertiaryMiocene505‐Contra Costa County CaliforniaUnited States North AmericayesI1139211392 IEchinoideaScutellagabbiHypotypeTertiaryMioceneIP12083Contra Costa County CaliforniaUnited States North AmericayesI1140011400 IEchinoideaCidarismartinezensisHypotypeTertiaryEoceneIP12506Contra Costa County CaliforniaUnited States North AmericayesI1140111401 IEchinoideaCidarismerriamiHypotypeTertiaryPaleocene1592‐Contra Costa County CaliforniaUnited States North AmericayesI1140911409 IBivalviaArcabilobaHypotypeTertiaryPaleocene243‐Contra Costa County CaliforniaUnited States North AmericayesI1141011410 IBivalviaArcabilobaHypotypeTertiaryPaleocene243‐Contra Costa County CaliforniaUnited States North AmericayesI1144011440 IBivalviaMuliniadensataHypotypeTertiaryMiocene1939‐Contra Costa County CaliforniaUnited States North AmericayesI1144111441 IBivalviaMuliniadensataHypotypeTertiaryMioceneIP12042Contra Costa County CaliforniaUnited States North AmericayesI1144211442 IBivalviaMuliniapabloensisHolotypeTertiaryMiocene1946‐Contra Costa County CaliforniaUnited States North AmericayesI1144711447 IBivalviaMuliniadensataHypotypeTertiaryMioceneIP12042Contra Costa County CaliforniaUnited States North AmericayesI1144811448 IBivalviaMuliniadensataHypotypeTertiaryPliocene504‐Contra Costa County CaliforniaUnited States North AmericayesI1144911449 IBivalviaMuliniadensataHypotypeTertiaryPliocene504‐Contra Costa County CaliforniaUnited States North AmericayesI1145111451 IBivalviaMuliniadensataHypotypeTertiaryMiocene481‐Contra Costa County CaliforniaUnited States North AmericayesI1145211452 IBivalviaMuliniadensataHypotypeTertiaryMiocene481‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1145311453 IBivalviaMuliniadensataHypotypeTertiaryMiocene481‐Contra Costa County CaliforniaUnited States North AmericayesI1145411454 IBivalviaMuliniadensataHypotypeTertiaryMiocene481‐Contra Costa County CaliforniaUnited States North AmericayesI1145511455 IBivalviaMuliniadensataHypotypeTertiaryMiocene481‐Contra Costa County CaliforniaUnited States North AmericayesI1145611456 IBivalviaMuliniadensataHypotypeTertiaryMiocene481‐Contra Costa County CaliforniaUnited States North AmericayesI1145711457 IBivalviaMuliniadensataHypotypeTertiaryMioceneIP12043Contra Costa County CaliforniaUnited States North AmericayesI1145811458 IBivalviaMuliniadensataHypotypeTertiaryMiocene481‐Contra Costa County CaliforniaUnited States North AmericayesI1145911459 IBivalviaMuliniadensataHypotypeTertiaryMiocene481‐Contra Costa County CaliforniaUnited States North AmericayesI1146511465 IBivalviaSpisulacatilliformisHypotypeTertiaryMiocene100‐Contra Costa County CaliforniaUnited States North AmericayesI1146611466 IBivalviaSpisulacatilliformisHypotypeTertiaryMiocene100‐Contra Costa County CaliforniaUnited States North AmericayesI1146911469 IBivalviaSpisulaoccidentalisHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1147011470 IBivalviaSpisulaoccidentalisHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1147111471 IBivalviaSpisulaoccidentalisHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1147211472 IBivalviaSpisulaabcissaHypotypeTertiaryMiocene1608‐Contra Costa County CaliforniaUnited States North AmericayesI1147311473 IBivalviaSpisulaalbariavar. ramonensisParatypeTertiaryOligocene1687‐Contra Costa County CaliforniaUnited States North AmericayesI1147411474 IBivalviaSpisulaalbariavar. ramonensisParatypeTertiaryMiocene1210‐Contra Costa County CaliforniaUnited States North AmericayesI1148211482 IBivalviaSpisulaselbyensisSyntypeTertiaryOligocene‐1352Contra Costa County CaliforniaUnited States North Americayes I1148311483 IBivalviaSpisulaselbyensisSyntypeTertiaryOligocene‐1352Contra Costa County CaliforniaUnited States North AmericayesI1149811498 IBivalviaMactratrampasensisParatypeTertiaryMiocene1227‐Contra Costa County CaliforniaUnited States North AmericayesI1149911499 IBivalviaMactratrampasensisHolotypeTertiaryMiocene1227‐Contra Costa County CaliforniaUnited States North AmericayesI1150011500 IBivalviaMactratrampasensisSyntypeTertiaryMiocene1227‐Contra Costa County CaliforniaUnited States North AmericayesI1150211502 IBivalviaDosiniamerriamiHolotypeTertiaryMiocene100‐Contra Costa County CaliforniaUnited States North AmericayesI1150311503 IBivalviaDosiniamerriamivar. occidentalisHolotypeTertiaryMioceneIP12080Contra Costa County CaliforniaUnited States North AmericayesI1150511505 IBivalviaDosiniamerriamiParatypeTertiaryMiocene100‐Contra Costa County CaliforniaUnited States North AmericayesI1150611506 IBivalviaDosiniamerriamiParatypeTertiaryMiocene100‐Contra Costa County CaliforniaUnited States North AmericayesI1150811508 IBivalviaAmiantisdalliCotypeTertiaryMiocene38‐Contra Costa County CaliforniaUnited States North AmericayesI1150911509 IBivalviaAmiantisdalliCotypeTertiaryMiocene38‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1151011510 IBivalviaAmiantisdalliCotypeTertiaryMiocene38‐Contra Costa County CaliforniaUnited States North AmericayesI1151111511 IBivalviaPitarstalderiHolotypeTertiaryMiocene1279‐Contra Costa County CaliforniaUnited States North AmericayesI1151211512 IBivalviaPitarstalderiParatypeTertiaryMiocene1279‐Contra Costa County CaliforniaUnited States North AmericayesI1151311513 IBivalviaPitarbehriHolotypeTertiaryMiocene1279‐Contra Costa County CaliforniaUnited States North AmericayesI1151411514 IBivalviaPitarbehriParatypeTertiaryMiocene1279‐Contra Costa County CaliforniaUnited States North AmericayesI1151511515 IBivalviaTivelagabbiHolotypeTertiaryMiocene1942‐Contra Costa County CaliforniaUnited States North AmericayesI1151611516 IBivalviaTivelagabbiParatypeTertiaryMiocene1949‐Contra Costa County CaliforniaUnited States North AmericayesI1151711517 IBivalviaArcatrilineataHypotypeTertiaryMiocene1945‐Contra Costa County CaliforniaUnited States North AmericayesI1151811518 IBivalviaGlycymeriscoalingensisHypotypeTertiaryMiocene1954‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1151911519 IBivalviaGlycymeriscoalingensisHypotypeTertiaryMiocene1282‐Contra Costa County CaliforniaUnited States North AmericayesI1152011520 IBivalviaGlycymerisseptentrionalisHypotypeTertiaryMiocene1948‐Contra Costa County CaliforniaUnited States North AmericayesI1152111521 IBivalviaDiplodontaorbellaHypotypeTertiaryMiocene1628‐Contra Costa County CaliforniaUnited States North AmericayesI1152311523 IBivalviaAcilaconradiHypotypeTertiaryMiocene1613‐Contra Costa County CaliforniaUnited States North AmericayesI1152411524 IBivalviaCardiumquadrigenariumHypotypeTertiaryMiocene307‐Contra Costa County CaliforniaUnited States North AmericayesI1152511525 IBivalviaSanguinolaria nuttalliiHypotypeTertiaryMiocene749‐Contra Costa County CaliforniaUnited States North AmericayesI1152611526 IBivalviaSanguinolaria alataHypotypeTertiaryMioceneIP12081Contra Costa County CaliforniaUnited States North AmericayesI1152711527 IBivalviaSanguinolaria sp.HypotypeTertiaryMiocene1617‐Contra Costa County CaliforniaUnited States North AmericayesI1152811528 IBivalviaSanguinolaria alataHypotypeTertiaryMiocene351‐Contra Costa County CaliforniaUnited States North AmericayesI1152911529 IBivalviaSpisulaalbariaHypotypeTertiaryMiocene100‐Contra Costa County CaliforniaUnited States North AmericayesI1153011530 IBivalviaSiliqualucidaHypotypeTertiaryMiocene102‐Contra Costa County CaliforniaUnited States North AmericayesI1153111531 IBivalviaTellina?diabloensisHolotypeTertiaryMiocene1478‐Contra Costa County CaliforniaUnited States North AmericayesI1153211532 IBivalviaTellinahannibaliHolotypeTertiaryMiocene1942‐Contra Costa County CaliforniaUnited States North AmericayesI1153311533 IBivalviaTellinaenglishiHolotypeTertiaryMiocene481‐Contra Costa County CaliforniaUnited States North AmericayesI1153411534 IBivalviaTellinasalmoneaHypotypeTertiaryMioceneIP12084Contra Costa County CaliforniaUnited States North AmericayesI1153511535 IBivalviaTellinasalmoneaHypotypeTertiaryMioceneIP12084Contra Costa County CaliforniaUnited States North AmericayesI1153711537 IBivalviaTiveladiabloensisCotypeTertiaryMiocene1628‐Contra Costa County CaliforniaUnited States North AmericayesI1153811538 IBivalviaTiveladiabloensisvar. angulatumHolotypeTertiaryMiocene1628‐Contra Costa County CaliforniaUnited States North AmericayesI1154011540 IBivalviaSpisulacatilliformisHypotypeTertiaryMiocene100‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1154211542 IBivalviaSaxidomusnuttalliiHypotypeTertiaryMiocene102‐Contra Costa County CaliforniaUnited States North AmericayesI1154311543 IBivalviaSaxidomusnuttalliiHypotypeTertiaryMiocene771‐Contra Costa County CaliforniaUnited States North AmericayesI1154411544 IBivalviaMytilusmerriamiHolotypeTertiaryMiocene118‐Contra Costa County CaliforniaUnited States North AmericayesI1154511545 IBivalviaMytilustrampasensisCotypeTertiaryMiocene402‐Contra Costa County CaliforniaUnited States North AmericayesI1154711547 IBivalviaMytilusperriniParatypeTertiaryMiocene1617‐Contra Costa County CaliforniaUnited States North AmericayesI1154811548 IBivalviaMytilusperriniHolotypeTertiaryMiocene1617‐Contra Costa County CaliforniaUnited States North AmericayesI1154911549 IBivalviaModiolusdirectusHypotypeTertiaryMiocene752‐Contra Costa County CaliforniaUnited States North AmericayesI1155111551 IBivalviaMyaovalisHypotypeTertiaryMiocene752‐Contra Costa County CaliforniaUnited States North AmericayesI1155211552 IBivalviaMyaovalisHypotypeTertiaryMiocene1890‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1155311553 IBivalviaMyadickersoniParatypeTertiaryOligocene197‐Contra Costa County CaliforniaUnited States North AmericayesI1155411554 IBivalviaMyadickersoniHolotypeTertiaryMiocene1617‐Contra Costa County CaliforniaUnited States North AmericayesI1155611556 IBivalviaMactratrampasensisHypotypeTertiaryMiocene1227‐Contra Costa County CaliforniaUnited States North AmericayesI1155811558 IBivalviaMacomadiabloensisParatypeTertiaryPliocene1513‐Contra Costa County CaliforniaUnited States North AmericayesI1155911559 IBivalviaMacomadiabloensisSyntypeTertiaryMiocene763‐Contra Costa County CaliforniaUnited States North AmericayesI1156011560 IBivalviaMacomadiabloensisSyntypeTertiaryMiocene763‐Contra Costa County CaliforniaUnited States North AmericayesI1156111561 IBivalviaMacomanasutaHypotypeTertiaryMiocene1937‐Contra Costa County CaliforniaUnited States North AmericayesI1156211562 IBivalviaMacomapabloensisParatypeTertiaryMiocene1617‐Contra Costa County CaliforniaUnited States North AmericayesI1156311563 IBivalviaMacomapabloensisHolotypeTertiaryMiocene1631‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1156411564 IBivalviaSolenperriniHolotypeTertiaryMiocene1478‐Contra Costa County CaliforniaUnited States North AmericayesI1156511565 IBivalviaOstreatitanHypotypeTertiaryMiocene1477‐Contra Costa County CaliforniaUnited States North AmericayesI1156711567 IBivalviaMuliniapabloensisHypotypeTertiaryMiocene1608‐Contra Costa County CaliforniaUnited States North AmericayesI1156811568 IBivalviaMetisaltaHypotypeTertiaryMioceneIP12917Contra Costa County CaliforniaUnited States North AmericayesI1157011570 IBivalviaVenusmartiniHolotypeTertiaryMiocene741‐Contra Costa County CaliforniaUnited States North AmericayesI1157211572 IBivalviaPhacoidestenuisculptaHypotypeTertiaryMiocene1290‐Contra Costa County CaliforniaUnited States North AmericayesI1157311573 IBivalviaPectenpabloensisHypotypeTertiaryMiocene1632‐Contra Costa County CaliforniaUnited States North AmericayesI1157411574 IBivalviaPectenpabloensisHypotypeTertiaryMiocene1632‐Contra Costa County CaliforniaUnited States North AmericayesI1157511575 IBivalviaPectenweaveriCotypeTertiaryMiocene407‐Contra Costa County CaliforniaUnited States North AmericayesI1157611576 IBivalviaPectenweaveriCotypeTertiaryMiocene407‐Contra Costa County CaliforniaUnited States North AmericayesI1157711577 IBivalviaPectencrassicardoHypotypeTertiaryMiocene102‐Contra Costa County CaliforniaUnited States North AmericayesI1157811578 IBivalviaPectenbilineatusCotypeTertiaryMiocene1632‐Contra Costa County CaliforniaUnited States North AmericayesI1157911579 IBivalviaPectenbilineatusCotypeTertiaryMiocene1632‐Contra Costa County CaliforniaUnited States North AmericayesI1158011580 IBivalviaPectenholwayiHolotypeTertiaryMiocene1632‐Contra Costa County CaliforniaUnited States North AmericayesI1158111581 IBivalviaPectenraymondiCotypeTertiaryMiocene1492‐Contra Costa County CaliforniaUnited States North AmericayesI1158211582 IBivalviaPectenraymondiCotypeTertiaryMiocene1445‐Contra Costa County CaliforniaUnited States North AmericayesI1158811588 IGastropodaTrophonlawsoniParatypeTertiaryMiocene1479‐Contra Costa County CaliforniaUnited States North AmericayesI1158911589 IGastropodaTrophonlawsoniHolotypeTertiaryMiocene1479‐Contra Costa County CaliforniaUnited States North AmericayesI1159211592 IGastropodaNaticapabloensisHolotypeTertiaryMiocene1227‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1159311593 IGastropodaNaticapabloensisParatypeTertiaryMiocene1227‐Contra Costa County CaliforniaUnited States North AmericayesI1159411594 IGastropodaNaticaarnoldiHolotypeTertiaryMiocene505‐Contra Costa County CaliforniaUnited States North AmericayesI1159511595 IGastropodaNaticadiabloensisHolotypeTertiaryMiocene1947‐Contra Costa County CaliforniaUnited States North AmericayesI1159611596 IGastropodaCalyptraeamartiniHolotypeTertiaryMiocene1945‐Contra Costa County CaliforniaUnited States North AmericayesI1159711597 IGastropodaCalyptraeadiabloensisHolotypeTertiaryMioceneIP12918Contra Costa County CaliforniaUnited States North AmericayesI1159811598 IGastropodaCancellariapabloensisParatypeTertiaryMiocene1942‐Contra Costa County CaliforniaUnited States North AmericayesI1159911599 IGastropodaCancellariapabloensisHolotypeTertiaryMiocene481‐Contra Costa County CaliforniaUnited States North AmericayesI1160011600 IGastropodaMurexselbyensisHolotypeTertiaryMiocene525‐Contra Costa County CaliforniaUnited States North AmericayesI1160111601 IGastropodaMurexselbyensisParatypeTertiaryMiocene410‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1160211602 IGastropodaMurexselbyensisParatypeTertiaryMiocene406‐Contra Costa County CaliforniaUnited States North AmericayesI1160311603 IGastropodaMurexpackardiParatypeTertiaryMiocene409‐Contra Costa County CaliforniaUnited States North AmericayesI1160411604 IGastropodaMurexpackardiHolotypeTertiaryMiocene409‐Contra Costa County CaliforniaUnited States North AmericayesI1160511605 IGastropodaMurexdalliHolotypeTertiaryMiocene1620‐Contra Costa County CaliforniaUnited States North AmericayesI1160611606 IGastropodaMurexdalliParatypeTertiaryMiocene521‐Contra Costa County CaliforniaUnited States North AmericayesI1160711607 IGastropodaCerithiopsisbolingerensisHolotypeTertiaryMiocene1182‐Contra Costa County CaliforniaUnited States North AmericayesI1160811608 IGastropodaCerithiopsisturneriHolotypeTertiaryMiocene100‐Contra Costa County CaliforniaUnited States North AmericayesI1160911609 IGastropodaCerithiopsisturneriParatypeTertiaryMiocene100‐Contra Costa County CaliforniaUnited States North AmericayesI1161011610 IGastropodaLittorinaremondiiHypotypeTertiaryMiocene102‐Contra Costa County CaliforniaUnited StatesNorth AmericayesI1161111611IGastropodaBursatrampasensisHolotypeTertiaryMiocene1251‐Contra Costa County CaliforniaUnited States North AmericayesI1161211612 IGastropodaCalyptraeafilosaHypotypeTertiaryMiocene1521‐Contra Costa County CaliforniaUnited States North AmericayesI1161311613 IGastropodaTegulanashiHolotypeTertiaryMiocene1948‐Contra Costa County CaliforniaUnited States North AmericayesI1161411614 IGastropodaTeguladanvillensisHolotypeTertiaryMiocene323‐Contra Costa County CaliforniaUnited States North AmericayesI1161511615 IGastropodaColumbellakirkerensisHolotypeTertiaryMiocene1890‐Contra Costa County CaliforniaUnited States North AmericayesI1161611616 IGastropodaLeptothyradanvillensisParatypeTertiaryMiocene323‐Contra Costa County CaliforniaUnited States North AmericayesI1161711617 IGastropodaLeptothyradanvillensisHolotypeTertiaryMiocene323‐Contra Costa County CaliforniaUnited States North AmericayesI1161911619 IGastropodaBittiumtrampasensisSyntypeTertiaryMiocene118‐Contra Costa County CaliforniaUnited States North AmericayesI1162011620 IGastropodaBittiumtrampasensisSyntypeTertiaryMiocene118‐Contra Costa County CaliforniaUnited States North AmericayesI1162111621 IGastropodaBittiumsp. AHypotypeTertiaryMiocene1182‐Contra Costa County CaliforniaUnited States North AmericayesI1162211622 IGastropodaBittium?pabloensisHolotypeTertiaryMiocene1618‐Contra Costa County CaliforniaUnited States North AmericayesI1162411624 IGastropodaAstraliumraymondiParatypeTertiaryMiocene1192‐Contra Costa County CaliforniaUnited States North AmericayesI1162511625 IGastropodaTrophongracilisvar. pabloensisSyntypeTertiaryMiocene409‐Contra Costa County CaliforniaUnited States North AmericayesI1162611626 IGastropodaTrophongracilisvar. pabloensisSyntypeTertiaryMiocene409‐Contra Costa County CaliforniaUnited States North AmericayesI1162711627 IGastropodaTrophonponderosumHypotypeTertiaryMiocene59‐Contra Costa County CaliforniaUnited States North AmericayesI1162811628 IGastropodaTrophonponderosum var. pabloensisHolotypeTertiaryMiocene140‐Contra Costa County CaliforniaUnited States North Americayes I1162911629 IGastropodaTrophondickersoniHolotypeTertiaryMiocene410‐Contra Costa County CaliforniaUnited States North AmericayesI1163011630 IGastropodaTrophondickersoniParatypeTertiaryMiocene410‐Contra Costa County CaliforniaUnited States North AmericayesI1163111631 IGastropodaChrysodomus diabloensisHolotypeTertiaryMiocene263‐Contra Costa County CaliforniaUnited States North AmericayesI1163211632 IGastropodaChrysodomus buwaldiHolotypeTertiaryMiocene1263‐Contra Costa County CaliforniaUnited States North AmericayesI1163411634 IGastropodaChrysodomus imperialisHypotypeTertiaryMioceneIP12972Contra Costa County CaliforniaUnited States North AmericayesI1163511635 IGastropodaChrysodomus cierboensisHolotypeTertiaryMiocene409‐Contra Costa County CaliforniaUnited States North AmericayesI1163611636 IGastropodaChrysodomus pabloensisHolotypeTertiaryMiocene409‐Contra Costa County CaliforniaUnited States North AmericayesI1163711637 IGastropodaNassapabloensisParatypeTertiaryMiocene1947‐Contra Costa County CaliforniaUnited States North AmericayesI1163811638 IGastropodaNassapabloensisHolotypeTertiaryMiocene1948‐Contra Costa County CaliforniaUnited States North AmericayesI1163911639 IGastropodaCalliostomabicarinatumParatypeTertiaryMiocene1182‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1164011640 IGastropodaCalliostomabicarinatumHolotypeTertiaryMiocene1182‐Contra Costa County CaliforniaUnited States North AmericayesI1164111641 IGastropodaCalliostomasplendensvar. diabloensisHolotypeTertiaryMiocene350‐Contra Costa County CaliforniaUnited States North AmericayesI1164211642 IGastropodaThaislimaHypotypeTertiaryMiocene1642‐Contra Costa County CaliforniaUnited States North AmericayesI1164311643 IGastropodaSiphonaliadanvillensisHolotypeTertiaryEocene723‐Contra Costa County CaliforniaUnited States North AmericayesI1164411644 IGastropodaCrepidulapabloensisParatypeTertiaryMiocene1942‐Contra Costa County CaliforniaUnited States North AmericayesI1164511645 IGastropodaCrepidulapabloensisParatypeTertiaryMiocene313‐Contra Costa County CaliforniaUnited States North AmericayesI1164611646 IGastropodaCrepidulapabloensisParatypeTertiaryMioceneIP12919Contra Costa County CaliforniaUnited States North AmericayesI1164711647 IGastropodaCrepidulapabloensisHolotypeTertiaryMiocene313‐Contra Costa County CaliforniaUnited States North AmericayesI1164811648 IGastropodaCrepidulaaduncaHypotypeTertiaryMiocene1948‐Contra Costa County CaliforniaUnited StatesNorth AmericayesI1164911649IGastropodaLittorinapittsburgensisHolotypeTertiaryMiocene1482‐Contra Costa County CaliforniaUnited States North AmericayesI1165011650 IGastropodaHemifususdalliHolotypeTertiaryMiocene1631‐Contra Costa County CaliforniaUnited States North AmericayesI1165111651 IGastropodaCerithiumrodeoensisHolotypeTertiaryMiocene1617‐Contra Costa County CaliforniaUnited States North AmericayesI1165211652 IGastropodaCerithiumrodeoensisParatypeTertiaryMiocene1617‐Contra Costa County CaliforniaUnited States North AmericayesI1165311653 IGastropodaOlivellapedroanaHypotypeTertiaryMiocene102‐Contra Costa County CaliforniaUnited States North AmericayesI1165411654 IGastropodaTurriskirkensisHolotypeTertiaryMiocene102‐Contra Costa County CaliforniaUnited States North AmericayesI1165511655 IGastropodaTurriskirkensisParatypeTertiaryMiocene102‐Contra Costa County CaliforniaUnited States North AmericayesI1165611656 IGastropodaTurriskirkensisParatypeTertiaryMiocene102‐Contra Costa County CaliforniaUnited States North AmericayesI1165711657 IBivalviaPetricolabuwaldiHolotypeTertiaryMiocene1942‐Contra Costa County CaliforniaUnited States North AmericayesI1165811658 IBivalviaTellina?unduliferaHypotypeTertiaryPaleocene1595‐Contra Costa County CaliforniaUnited States North AmericayesI1165911659 IBivalviaTellina?unduliferaHypotypeTertiaryPaleocene1595‐Contra Costa County CaliforniaUnited States North AmericayesI1166011660 IBivalviaTellina?unduliferaHypotypeTertiaryPaleocene1540‐Contra Costa County CaliforniaUnited States North AmericayesI1166311663 IBivalviaLedamilleriHolotypeTertiaryPaleocene1556‐Contra Costa County CaliforniaUnited States North AmericayesI1166811668 IBivalviaCrassatellastewartvillensisHolotypeTertiaryPaleocene1540‐Contra Costa County CaliforniaUnited States North AmericayesI1166911669 IBivalviaCrassatellites claytonensisHolotype1559‐Contra Costa County CaliforniaUnited States North AmericayesI1167011670 IBivalviaCrassatellites claytonensisParatypeTertiaryPaleocene1547‐Contra Costa County CaliforniaUnited States North AmericayesI1167111671 IBivalviaCucullaeamathewsoniHypotypeTertiaryPaleocene1540‐Contra Costa County CaliforniaUnited States North AmericayesI1167211672 IBivalviaCuspidariahannibaliHolotypeTertiaryPaleocene1547‐Contra Costa County CaliforniaUnited States North AmericayesI1167611676 IBivalviaLimahaseltineiHolotypeTertiaryPaleocene1540‐Contra Costa County CaliforniaUnited States North AmericayesI1168111681 IBivalviaPhacoidesdiaboliHolotypeTertiaryEocene340‐Contra Costa County CaliforniaUnited States North AmericayesI1168211682 IBivalviaPhacoidesmuirensisHolotypeTertiaryPaleocene243‐Contra Costa County CaliforniaUnited States North AmericayesI1168611686 IBivalviaModiolusbakeriHolotypeTertiaryPaleocene1556‐Contra Costa County CaliforniaUnited States North AmericayesI1169411694 IEchinoideaSchizasterleconteiHypotypeTertiaryEocene1415‐Contra Costa County CaliforniaUnited States North AmericayesI1169511695 IGastropodaNaticasp.HypotypeTertiaryPaleocene1556‐Contra Costa County CaliforniaUnited States North AmericayesI1169611696 IGastropodaNeritabiangulataHolotypeTertiaryMiocene155‐Contra Costa County CaliforniaUnited States North AmericayesI1169711697 IGastropodaNeritasp.HypotypeTertiaryPaleocene243‐Contra Costa County CaliforniaUnited States North AmericayesI1169811698 IGastropodaTurrislouderbackiSyntypeTertiaryPaleocene1540‐Contra Costa County CaliforniaUnited States North AmericayesI1169911699 IGastropodaTurrislouderbackiSyntypeTertiaryPaleocene1540‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1170211702 IGastropodaAmauropsismartinezensisHolotypeTertiaryPaleocene1540‐Contra Costa County CaliforniaUnited States North AmericayesI1170311703 IGastropodaAmauropsismartinezensisParatypeTertiaryPaleocene1540‐Contra Costa County CaliforniaUnited States North AmericayesI1170411704 IGastropodaOlivellaclaytonensisHolotypeTertiaryPaleocene1543‐Contra Costa County CaliforniaUnited States North AmericayesI1170511705 IEchinoideaCidaris?sp. CHypotypeTertiaryPaleocene1592‐Contra Costa County CaliforniaUnited States North AmericayesI1170611706 IGastropodaAnchuragabbiHolotypeTertiaryPaleocene1540‐Contra Costa County CaliforniaUnited States North AmericayesI1170711707 IGastropodaArchitectonica sp.HypotypeTertiaryPaleocene243‐Contra Costa County CaliforniaUnited States North AmericayesI1171211712 IRhynchonellata Terebratulina tejonensisPlesiotypeTertiaryPaleocene1743‐Contra Costa County CaliforniaUnited States North AmericayesI1171311713 IBivalviaSpisula?weaveriParatypeTertiaryPaleocene1556‐Contra Costa County CaliforniaUnited States North AmericayesI1171411714 IBivalviaSpisula?weaveriHolotypeTertiaryPaleocene1556‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1171711717 IBivalviaMeretrixsp.HypotypeTertiaryPaleocene1556‐Contra Costa County CaliforniaUnited States North AmericayesI1172011720 IBivalviaLima?claytonensisCotypeTertiaryPaleocene1592‐Contra Costa County CaliforniaUnited States North AmericayesI1172111721 IBivalviaLima?claytonensisCotypeTertiaryPaleocene1592‐Contra Costa County CaliforniaUnited States North AmericayesI1172211722 IBivalviaMytiluscf. asciaHypotypeTertiaryPaleocene1556‐Contra Costa County CaliforniaUnited States North AmericayesI1172311723 IBivalviaMeretrixstantoniHolotypeTertiaryPaleocene1556‐Contra Costa County CaliforniaUnited States North AmericayesI1172411724 IBivalviaYoldia?powersiHolotypeTertiaryPaleocene1556‐Contra Costa County CaliforniaUnited States North AmericayesI1172611726 IBivalviaCrassatellites uniodesHypotypeTertiaryPaleocene1545‐Contra Costa County CaliforniaUnited States North AmericayesI1172711727 IBivalviaTeredosp.HypotypeTertiaryPaleocene1540‐Contra Costa County CaliforniaUnited States North AmericayesI1172811728 IBivalviaPinnabarrowsiHolotypeTertiaryPaleocene1547‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1172911729 IEchinoideaCidarissp. ACotypeTertiaryPaleocene1556‐Contra Costa County CaliforniaUnited States North AmericayesI1173011730 IGastropodaSurculamerriamiHolotypeTertiaryPaleocene1558‐Contra Costa County CaliforniaUnited States North AmericayesI1173111731 IGastropodaSurculafairbanksiHolotypeTertiaryPaleocene1540‐Contra Costa County CaliforniaUnited States North AmericayesI1173211732 IGastropodaNeptuneamucronatumHypotypeTertiaryPaleocene243‐Contra Costa County CaliforniaUnited States North AmericayesI1173511735 IBivalviaCuspidariadolabraeformisHypotypeTertiaryPaleocene1556‐Contra Costa County CaliforniaUnited States North AmericayesI1173711737 IGastropodaAnchuraenglishiHolotypeTertiaryPaleocene243‐Contra Costa County CaliforniaUnited States North AmericayesI1174011740 IBivalviaMeretrixstantoniParatypeTertiaryPaleocene1556‐Contra Costa County CaliforniaUnited States North AmericayesI1174311743 IGastropodaLunatiahorniiHypotypeTertiaryPaleocene1540‐Contra Costa County CaliforniaUnited States North AmericayesI1174411744 IGastropodaFissurella?behriHolotypeTertiaryPaleocene243‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1179611796 IBivalviaTapes?quadrataHypotypeTertiaryPaleocene1815‐Contra Costa County CaliforniaUnited States North AmericayesI1181511815 IGastropodaStrepsidurahowardiHolotypeTertiaryEocene476‐Contra Costa County CaliforniaUnited States North AmericayesI1184011840 ICephalopoda AturiadickersoniHolotypeTertiaryEocene150‐Contra Costa County CaliforniaUnited States North AmericayesI1184111841 ICephalopoda Eutrephoceras stephensoniHolotypeTertiaryPaleocene243‐Contra Costa County CaliforniaUnited States North AmericayesI1184211842 ICephalopoda HercoglossamerriamiHolotypeTertiaryPaleocene243‐Contra Costa County CaliforniaUnited States North AmericayesI1184311843 IAnthozoaTrochocyathus zitteliHypotypeTertiaryPaleocene1656‐Contra Costa County CaliforniaUnited States North AmericayesI1184411844 IAnthozoaTrochocyathus zitteliHypotypeCretaceous544‐Contra Costa County CaliforniaUnited States North AmericayesI1184611846 IAnthozoaFlabellumremondianumHypotypeTertiaryPaleocene1743‐Contra Costa County CaliforniaUnited States North AmericayesI1184711847 IGastropodaFususmathewsoniHypotypeTertiaryPaleocene1540‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1184811848 IGastropodaFususoccidentalisHypotypeTertiaryPaleocene501‐Contra Costa County CaliforniaUnited States North AmericayesI1184911849 IGastropodaFususflexuosusHypotypeTertiaryPaleocene243‐Contra Costa County CaliforniaUnited States North AmericayesI1185311853 IEchinoideaCidarissp. AHypotypeTertiaryPaleocene245‐Contra Costa County CaliforniaUnited States North AmericayesI1185611856 IGastropodaSurculasp.HypotypeTertiaryPaleocene1540‐Contra Costa County CaliforniaUnited States North AmericayesI1185711857 IGastropodaSurculasp.HypotypeTertiaryPaleocene1540‐Contra Costa County CaliforniaUnited States North AmericayesI1185911859 IGastropodaTurbinellacrassitestaHypotypeTertiaryPaleocene1815‐Contra Costa County CaliforniaUnited States North AmericayesI1186011860 IGastropodaTritoniummartinezensisHolotypeTertiaryPaleocene1556‐Contra Costa County CaliforniaUnited States North AmericayesI1186211862 IGastropodaSurculaandersoniHolotypeTertiaryPaleocene243‐Contra Costa County CaliforniaUnited States North AmericayesI1186311863 IGastropodaUrosycacaudataHypotypeTertiaryPaleocene1547‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1186411864 IGastropodaUrosycacaudataHypotypeTertiaryPaleocene1580‐Contra Costa County CaliforniaUnited States North AmericayesI1186511865 IGastropodaUrosycarobustaHypotypeTertiaryPaleocene1888‐Contra Costa County CaliforniaUnited States North AmericayesI1186611866 IGastropodaHemifusus?waringiHolotypeTertiaryEoceneIP12923Contra Costa County CaliforniaUnited States North AmericayesI1186811868 IGastropodaSiphonalia?lineataHypotypeTertiaryPaleocene1540‐Contra Costa County CaliforniaUnited States North AmericayesI1186911869 IGastropodaOvulamartiniHolotypeTertiaryPaleocene243‐Contra Costa County CaliforniaUnited States North AmericayesI1187011870 IGastropodaPerrisolaxtricarinatusHypotypeTertiaryPaleocene243‐Contra Costa County CaliforniaUnited States North AmericayesI1187111871 IGastropodaPerrisolaxtricarinatusHypotypeTertiaryPaleocene243‐Contra Costa County CaliforniaUnited States North AmericayesI1187211872 IGastropodaRinginellapinguisHypotypeTertiaryPaleocene1743‐Contra Costa County CaliforniaUnited States North AmericayesI1187411874 IGastropodaNeptuneacretaceaHypotypeTertiaryPaleocene1746‐Contra Costa County CaliforniaUnited StatesNorth AmericayesI1187511875IScaphopoda DentaliumcooperiHypotypeTertiaryPaleocene1543‐Contra Costa County CaliforniaUnited States North AmericayesI1187611876 IBivalviaTellinamartinezensisHolotypeTertiaryPaleocene337‐Contra Costa County CaliforniaUnited States North AmericayesI1187711877 IBivalviaThraciakarquinesensisHolotypeTertiaryPaleocene532‐Contra Costa County CaliforniaUnited States North AmericayesI1187811878 IGastropodaBullinulasubglobosaHolotypeTertiaryPaleocene213‐Contra Costa County CaliforniaUnited States North AmericayesI1187911879 IGastropodaActeonlawsoniHolotypeTertiaryPaleocene243‐Contra Costa County CaliforniaUnited States North AmericayesI1188011880 IGastropodaTritoniumimpressumHolotypeTertiaryPaleocene243‐Contra Costa County CaliforniaUnited States North AmericayesI1188111881 IGastropodaTritoniumeocenicumHolotypeTertiaryPaleocene337‐Contra Costa County CaliforniaUnited States North AmericayesI1188211882 IGastropodaPerrisolaxtricarinatusHolotypeTertiaryPaleocene343‐Contra Costa County CaliforniaUnited States North Americayes I1188411884 IBivalviaArcabilobaHolotypeTertiaryPaleocene243‐Contra Costa County CaliforniaUnited States North AmericayesI1188511885 IBivalviaArcabilobaHypotypeTertiaryPaleocene243‐Contra Costa County CaliforniaUnited States North AmericayesI1188611886 IGastropodaUrosycarobustaHolotypeTertiaryPaleocene243‐Contra Costa County CaliforniaUnited States North AmericayesI1188711887 IGastropodaFicopsisangulatusHolotypeTertiaryPaleocene337‐Contra Costa County CaliforniaUnited States North AmericayesI1188811888 IGastropodaArchitectonica tuberculataHolotypeTertiaryPaleocene541‐Contra Costa County CaliforniaUnited States North AmericayesI1188911889 IGastropodaDiscohelixcalifornicusHolotypeTertiaryPaleocene243‐Contra Costa County CaliforniaUnited States North AmericayesI1189111891 IMalacostraca Plagiolophus weaveriParatypeTertiaryPaleocene542‐Contra Costa County CaliforniaUnited States North AmericayesI1189211892 IBivalviaModiolamerriamiHolotypeTertiaryPaleocene333‐Contra Costa County CaliforniaUnited States North AmericayesI1189411894 IGastropodaTurritellaconicaHolotypeTertiaryPaleocene532‐Contra Costa County CaliforniaUnited States North AmericayesI1189511895 IGastropodaFicusrodeoensisHolotypeTertiaryMiocene1176‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1189811898 IGastropodaTrophosycon stanfordenseHypotypeTertiaryMiocene1243‐Contra Costa County CaliforniaUnited States North AmericayesI1189911899 IGastropodaFicuspyriformisHypotypeTertiaryOligocene1686‐Contra Costa County CaliforniaUnited States North AmericayesI1190011900 IGastropodaAgasomasinuataHypotypeTertiaryMiocene1354‐Contra Costa County CaliforniaUnited States North AmericayesI1190211902 IGastropodaAgasomabarkerianum var. clarkiHolotypeTertiaryOligocene‐1352Contra Costa County CaliforniaUnited States North AmericayesI1190311903 IGastropodaAgasomabarkerianum var. clarkiParatypeTertiaryOligocene‐1352Contra Costa County CaliforniaUnited States North AmericayesI1190711907 IGastropodaAgasomagravidumHypotypeTertiaryMiocene1203‐Contra Costa County CaliforniaUnited States North AmericayesI1190811908 IGastropodaAgasomagravidumHypotypeTertiaryMiocene1203‐Contra Costa County CaliforniaUnited States North AmericayesI1190911909 IGastropodaTrophosycon stanfordenseHypotypeTertiaryMiocene1243‐Contra Costa County CaliforniaUnited States North AmericayesI1191111911 IGastropodaChrysodomus? martiniHypotypeTertiaryPaleocene3577‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1191211912 IGastropodaChrysodomus? martiniHypotypeTertiaryPaleocene3157‐Contra Costa County CaliforniaUnited States North AmericayesI1192511925 IBivalviaArcamontereyanaHolotypeTertiaryMioceneIP12924Contra Costa County CaliforniaUnited States North AmericayesI1193611936 IGastropodaTurritellaclarkiHolotypeTertiaryPaleocene1540‐Contra Costa County CaliforniaUnited States North AmericayesI1194111941 IBivalviaSolenstantoniHolotypeTertiaryPaleocene532‐Contra Costa County CaliforniaUnited States North AmericayesI1194211942 IGastropodaTritoniumpulchrumHolotypeTertiaryPaleocene532‐Contra Costa County CaliforniaUnited States North AmericayesI1194311943 IGastropodaFususaequilateralisHolotypeTertiaryPaleocene227‐Contra Costa County CaliforniaUnited States North AmericayesI1195311953 IBivalviaInoceramuspiochiiHolotypeCretaceousIP11371Contra Costa County CaliforniaUnited States North AmericayesI1195411954 IBivalviaInoceramuspiochiiHypotypeCretaceousIP11371Contra Costa County CaliforniaUnited States North AmericayesI1195811958 IBivalviaPholadomya nasutaParatypeTertiaryPaleoceneIP12779Contra Costa County CaliforniaUnited States North AmericayesI1196211962 IBivalviaMytiluspauperculusHolotypeCretaceousLate CretaceousIP12780Contra Costa County CaliforniaUnited States North AmericayesI1196811968 IGastropodaPaosiacalifornicaLectotypeCretaceousIP11347Contra Costa County CaliforniaUnited States North AmericayesI1197211972 IGastropodaCylindritesbrevisParatypeCretaceousLate Cretaceous IP12926Contra Costa County CaliforniaUnited States North AmericayesI1197411974 IGastropodaGlobiconcha remondiiHolotypeCretaceousIP11344Contra Costa County CaliforniaUnited States North AmericayesI1197611976 IGastropodaCinuliapinguisParatypeTertiaryPaleoceneIP11332Contra Costa County CaliforniaUnited States North AmericayesI1197711977 IGastropodaCinuliapinguisSyntypeTertiaryPaleoceneIP11332Contra Costa County CaliforniaUnited States North AmericayesI1197811978 IGastropodaFususmartinezHolotypeTertiaryEoceneIP12927Contra Costa County CaliforniaUnited States North AmericayesI1197911979 IGastropodaFususaratusHolotypeCretaceousLate Cretaceous IP12783Contra Costa County CaliforniaUnited States North AmericayesI1198111981 IBivalviaTrigoniagibbonianaHypotypeCretaceousLate Cretaceous IP12928Contra Costa County CaliforniaUnited States North AmericayesI1198311983 IBivalviaAviculapellucidaCotypeCretaceousIP11377Contra Costa County CaliforniaUnited States North AmericayesI1198511985 IBivalviaCrenellaconcentricaHolotypeTertiaryEoceneIP11391Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1199011990 IBivalviaMysiapolitaHolotypeTertiaryEoceneIP11388Contra Costa County CaliforniaUnited States North AmericayesI1199111991 IBivalviaNeaeradolabraeformisHolotypeTertiaryEoceneIP12785Contra Costa County CaliforniaUnited States North AmericayesI1199211992 IBivalviaAxineacorHolotypeTertiaryEoceneIP11390Contra Costa County CaliforniaUnited States North AmericayesI1199411994 IGastropodaClavellasinuataHolotypeTertiaryMioceneIP12932Contra Costa County CaliforniaUnited States North AmericayesI1199511995 IGastropodaClavellasinuataCotypeTertiaryMioceneIP12932Contra Costa County CaliforniaUnited States North AmericayesI1199911999 IBivalviaChionewhitneyiHolotypeTertiaryMioceneIP11400Contra Costa County CaliforniaUnited States North America 0000 0000 0412 1083 yesI1201812018 IAnthozoaTurbinoliapusillanimaHolotypeTertiaryEocene476‐Contra Costa County CaliforniaUnited States North AmericayesI1201912019 IAnthozoaTurbinoliapusillanimaParatypeTertiaryEocene476‐Contra Costa County CaliforniaUnited States North AmericayesI1202112021 IAnthozoaStephanophyllia californicaHolotypeTertiaryEocene716‐Contra Costa County CaliforniaUnited States North AmericayesI1202212022 IAnthozoaSiderastreaclarkiParatypeTertiaryOligocene1131‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1202412024 IAnthozoaThamnasteria sinuataCotypeTertiaryEocene476‐Contra Costa County CaliforniaUnited States North AmericayesI1202512025 IAnthozoaThamnasteria sinuataCotypeTertiaryEocene476‐Contra Costa County CaliforniaUnited States North AmericayesI1202912029 IAnthozoaFlabellumremondianumHypotypeTertiaryPaleocene1556‐Contra Costa County CaliforniaUnited States North AmericayesI1203012030 IGastropodaMiopleionaindurataHypotypeTertiaryOligocene3051‐Contra Costa County CaliforniaUnited States North AmericayesI1203412034 IAnthozoaFlabellumcalifornicumHypotypeTertiaryEoceneIP12938Contra Costa County CaliforniaUnited States North AmericayesI1203512035 IAnthozoaFlabellumcalifornicumHypotypeTertiaryEoceneIP12938Contra Costa County CaliforniaUnited States North AmericayesI1207212072 IBivalviaTellinaooidesHolotypeCretaceousIP11351Contra Costa County CaliforniaUnited States North America 0000 0000 0412 1080 yesI1208512085 IBivalviaPectencrassicardoHypotypeTertiaryMioceneIP12161Contra Costa County CaliforniaUnited States North AmericayesI1208712087 IEchinoideaAstrodapsiswhitneyiPlesiotypeTertiaryMioceneIP224Contra Costa County CaliforniaUnited StatesNorth AmericayesI1210712107ICephalopoda Nautilussp.HypotypeTertiaryEoceneIP12788Contra Costa County CaliforniaUnited States North AmericayesI1211112111 ICephalopoda Parapachydiscus diabloensisHolotypeCretaceousLate Cretaceous IP12957Contra Costa County CaliforniaUnited States North America 0000 0000 0412 0485 yesI1211612116 ICephalopoda BaculiteschicoensisHypotypeCretaceousLate Cretaceous IP12789Contra Costa County CaliforniaUnited States North America 0000 0000 0412 1090 yesI1214512145 IXenohelix?clarkiParatypeTertiaryMioceneIP12994Contra Costa County CaliforniaUnited States North AmericayesI1217112171 IBivalviaTrigonialeanaHolotypeCretaceousLate Cretaceous IP12961Contra Costa County CaliforniaUnited States North AmericayesI1217212172 IBivalviaMytiluspauperculusParatypeCretaceousLate Cretaceous IP12780Contra Costa County CaliforniaUnited States North AmericayesI1217412174 IBivalviaAnodontanuttallianavar. ligniticaHypotypeTertiaryPlioceneB7269Contra Costa County CaliforniaUnited States North AmericayesI1217612176 IBivalviaMytiluspauperculusParatypeCretaceousLate Cretaceous IP12780Contra Costa County CaliforniaUnited States North AmericayesI1217712177 IBivalviaAnatinatryonianaParatypeCretaceousIP11237Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1219112191 IBivalviaMeretrixnitidaParatypeCretaceousLate Cretaceous IP12792Contra Costa County CaliforniaUnited States North AmericayesI1219212192 IBivalviaMeretrixnitidaParatypeCretaceousLate Cretaceous IP12792Contra Costa County CaliforniaUnited States North AmericayesI1220312203 IBivalviaTellinahoffmannianaParatypeCretaceousIP11357Contra Costa County CaliforniaUnited States North AmericayesI1220412204 IBivalviaTellinahoffmannianaParatypeCretaceousIP11353Contra Costa County CaliforniaUnited States North AmericayesI1220612206 IBivalviaTellinahoffmannianaParatypeCretaceousIP11357Contra Costa County CaliforniaUnited States North AmericayesI1221012210 IGastropodaTurritellauvasanaaedificataParatypeTertiaryOligocene125‐Contra Costa County CaliforniaUnited States North AmericayesI1221212212 IGastropodaOdostomiaclessiniTopotypeTertiaryMiocene516‐Contra Costa County CaliforniaUnited States North AmericayesI1221312213 IGastropodaOdostomiaclessiniTopotypeTertiaryMiocene516‐Contra Costa County CaliforniaUnited States North AmericayesI1221412214 IGastropodaOdostomiaclessiniTopotypeTertiaryMiocene516‐Contra Costa County CaliforniaUnited States North AmericayesI1221712217 IBivalvia?MysiapolitaParatypeTertiaryEoceneIP11388Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1222612226 IGastropodaCylindritesbrevisParatypeCretaceousLate Cretaceous IP12963Contra Costa County CaliforniaUnited States North AmericayesI1223412234 IGastropodaPugnellushamulusParatypeCretaceousIP11345Contra Costa County CaliforniaUnited States North AmericayesI1224812248 IGastropodaActeoninacalifornicaParatypeCretaceousIP11347Contra Costa County CaliforniaUnited States North AmericayesI1225612256 IAnthozoaTrochosmilia striataHolotypeTertiaryPaleoceneIP12965Contra Costa County CaliforniaUnited States North AmericayesI1225712257 IAnthozoaFlabellumremondianumHolotypeTertiaryPaleoceneIP12966Contra Costa County CaliforniaUnited States North AmericayesI1232512325 IBivalviaChionediabloensisHolotypeTertiaryMiocene1492‐Contra Costa County CaliforniaUnited States North AmericayesI1236212362 IBivalviaLedafurlongiHolotypeTertiaryMiocene15‐Contra Costa County CaliforniaUnited States North AmericayesI1236312363 IBivalviaLedafurlongiParatypeTertiaryMiocene15‐Contra Costa County CaliforniaUnited States North AmericayesI1236612366 IBivalviaPectentolmaniHypotypeTertiaryMiocene3581‐Contra Costa County CaliforniaUnited States North AmericayesI1236712367 IBivalviaPectentolmaniHypotypeTertiaryMiocene3581‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1237012370 IBivalviaPectenandersonigonicostusHolotypeTertiaryMiocene1176‐Contra Costa County CaliforniaUnited States North AmericayesI1237112371 IBivalviaPectenraymondiCotypeTertiaryMiocene1942‐Contra Costa County CaliforniaUnited States North AmericayesI1237212372 IBivalviaModiolusgabbisubconvexusHolotype793‐Contra Costa County CaliforniaUnited States North AmericayesI1237412374 IBivalviaCyrenadiabloensisHolotypeTertiaryMiocene1949‐Contra Costa County CaliforniaUnited States North AmericayesI1237612376 IBivalviaCardiumcorbisHypotypeTertiaryMiocene207‐Contra Costa County CaliforniaUnited States North AmericayesI1237712377 IBivalviaVenusbrionianaHolotypeTertiaryMiocene177‐Contra Costa County CaliforniaUnited States North AmericayesI1237812378 IBivalviaTivelamerriamiHolotypeTertiaryMiocene3582‐Contra Costa County CaliforniaUnited States North AmericayesI1237912379 IBivalviaAntigonawillisiHolotypeTertiaryMiocene146‐Contra Costa County CaliforniaUnited States North AmericayesI1238012380 IBivalviaSpisulafalcatavar. brionianaHolotypeTertiaryMiocene3522‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1238512385 IGastropodaCalliostomaobliquistriataHolotypeTertiaryMiocene3575‐Contra Costa County CaliforniaUnited States North AmericayesI1238612386 IGastropodaSinumtrigenariumHolotypeTertiaryMiocene3576‐Contra Costa County CaliforniaUnited States North AmericayesI1238712387 IGastropodaNassawhitneyiHolotypeTertiaryMiocene3524‐Contra Costa County CaliforniaUnited States North AmericayesI1238812388 IGastropodaNassawhitneyiParatypeTertiaryMiocene1176‐Contra Costa County CaliforniaUnited States North AmericayesI1238912389 IGastropodaSiphonaliarodeoensisHolotypeTertiaryMiocene1177‐Contra Costa County CaliforniaUnited States North AmericayesI1239012390 IGastropodaTrophongracilisvar. clarkiParatypeTertiaryMiocene177‐Contra Costa County CaliforniaUnited States North AmericayesI1239112391 IGastropodaTrophondaviesiHolotypeTertiaryMiocene1354‐Contra Costa County CaliforniaUnited States North AmericayesI1239312393 IKoilopleurasinuataHypotypeTertiaryMiocene1455‐Contra Costa County CaliforniaUnited States North AmericayesI1239412394 IGastropodaOlivasimondsiHolotypeTertiaryMiocene171‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1243412434 IAnthozoaFlabellumremondianumHypotypeTertiaryPaleocene1743‐Contra Costa County CaliforniaUnited States North AmericayesI1244112441 IGastropodaTurritellameganosensisParatypeTertiaryPaleocene3159‐Contra Costa County CaliforniaUnited States North AmericayesI1244512445 IGastropodaTurritellameganosensisHolotypeTertiaryPaleocene3159‐Contra Costa County CaliforniaUnited States North AmericayesI1245712457 IGastropodaTurritellamerriamiParatypeTertiaryPaleocene3159‐Contra Costa County CaliforniaUnited States North Americayes I1248312483 IGastropodaTurritellamerriamiHypotypeTertiaryPaleocene3159‐Contra Costa County CaliforniaUnited States North AmericayesI1249312493 IGastropodaTurritellamerriamiHypotypeTertiaryEocene475‐Contra Costa County CaliforniaUnited States North AmericayesI1250412504 IBivalviaAxineacorParatypeTertiaryEoceneIP11390Contra Costa County CaliforniaUnited States North AmericayesI1250712507 IBivalviaPlicatulavariataParatypeCretaceousIP11377Contra Costa County CaliforniaUnited States North AmericayesI1251012510 IBivalviaCrassatellagrandisParatypeTertiaryEoceneIP12795Contra Costa County CaliforniaUnited States North AmericayesI1251612516 IBivalviaMeekianavisParatypeCretaceousIP11380Contra Costa County CaliforniaUnited States North AmericayesI1253112531 IAnthozoaHaimesiastraea petrosaHypotypeTertiaryEoceneIP12974Contra Costa County CaliforniaUnited States North AmericayesI1253212532 IAnthozoaHaimesiastraea petrosaHypotypeTertiaryEoceneIP12974Contra Costa County CaliforniaUnited States North AmericayesI1253312533 IAnthozoaHaimesiastraea petrosaHypotypeTertiaryEoceneIP12974Contra Costa County CaliforniaUnited States North AmericayesI1253612536 IAnthozoaHaimesiastraea petrosaHypotypeTertiaryEoceneIP12974Contra Costa County CaliforniaUnited States North AmericayesI1253712537 IAnthozoaHaimesiastraea petrosaHypotypeTertiaryEoceneIP12974Contra Costa County CaliforniaUnited States North AmericayesI1254712547IAsteroideaAsteriasremondiiHypotypeCretaceousIP11377Contra Costa County CaliforniaUnited States North AmericayesI1257412574 IEchinoideaAstrodapsiswhitneyiHolotypeTertiaryMioceneIP11399Contra Costa County CaliforniaUnited States North AmericayesI1257512575 IEchinoideaEchinarachnius brewerianusParatypeTertiaryMioceneIP12801Contra Costa County CaliforniaUnited States North AmericayesI1257612576 IEchinoideaEchinarachnius brewerianusParatypeTertiaryMioceneIP12801Contra Costa County CaliforniaUnited States North AmericayesI1257712577 IEchinoideaEchinarachnius brewerianusParatypeTertiaryMioceneIP12801Contra Costa County CaliforniaUnited States North AmericayesI1411714117 IBivalviaCymbophora ashburneriHypotypeCretaceousLate Cretaceous 2609‐Contra Costa County CaliforniaUnited States North AmericayesI1418714187 IBivalviaCymbophora ashburneriSee BelowCretaceousLate Cretaceous IP12134Contra Costa County CaliforniaUnited States North AmericayesI1441114411 IGastropodaPolinicesgesteriHypotypeTertiaryPaleocene3577‐Contra Costa County CaliforniaUnited States North AmericayesI1467814678 IGastropodaAssimineacalifornicaSyntypeTertiaryMiocene753‐Contra Costa County CaliforniaUnited States North AmericayesI1475214752 IBivalviaPlicatulavariataParatypeCretaceousIP11377Contra Costa County CaliforniaUnited States North AmericayesI1475314753IBivalviaPlicatulavariataParatypeCretaceousIP11377Contra Costa County CaliforniaUnited States North AmericayesI1475514755 IBivalviaPlicatulavariataParatypeCretaceousIP11377Contra Costa County CaliforniaUnited States North AmericayesI1475614756 IBivalviaPlicatulavariataParatypeCretaceousIP11377Contra Costa County CaliforniaUnited States North AmericayesI1475714757 IBivalviaPlicatulavariataParatypeCretaceousIP11377Contra Costa County CaliforniaUnited States North AmericayesI1475814758 IBivalviaPlicatulavariataParatypeCretaceousIP11377Contra Costa County CaliforniaUnited States North AmericayesI1475914759 IBivalviaPlicatulavariataParatypeCretaceousIP11377Contra Costa County CaliforniaUnited States North AmericayesI1477214772 IBivalviaPlicatulavariataParatypeCretaceousIP11377Contra Costa County CaliforniaUnited States North AmericayesI1477314773 IBivalviaPlicatulavariataParatypeCretaceousIP11377Contra Costa County CaliforniaUnited States North AmericayesI1483514835 IBivalviaClinocardium praeblandumParatypeTertiaryMiocene1262‐Contra Costa County CaliforniaUnited States North AmericayesI1483714837 IBivalviaClinocardium pristinumParatypeTertiaryMiocene1936‐Contra Costa County CaliforniaUnited States North AmericayesI1483814838 IBivalviaClinocardium pristinumParatypeTertiaryMiocene1943‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1485514855 ICephalopoda AmmonitesnewberryanusHypotypeCretaceousIP12541Contra Costa County CaliforniaUnited States North AmericayesI1485814858 ICephalopoda AturiamathewsoniiParatypeTertiaryPaleoceneIP12909Contra Costa County CaliforniaUnited States North AmericayesI1487714877 IGastropodaExiliasp. AHypotypeTertiaryPaleoceneA1435Contra Costa County CaliforniaUnited States North AmericayesI1487814878 IGastropodaExiliasp. AHypotypeTertiaryPaleoceneA1435Contra Costa County CaliforniaUnited States North AmericayesI1489914899 IBivalviaEriphylaumbonataParatypeCretaceousIP11361Contra Costa County CaliforniaUnited States North AmericayesI1490114901 IBivalviaVenustetrahedraParatypeTertiaryPaleoceneIP11384Contra Costa County CaliforniaUnited States North AmericayesI1491114911 IGastropodaPugnellushamulusParatypeCretaceousIP11345Contra Costa County CaliforniaUnited States North AmericayesI1492614926 IBivalviaMactraashburneriiParatypeCretaceousIP11315Contra Costa County CaliforniaUnited States North AmericayesI1493414934 IBivalviaModiolushenryiParatypeCretaceous3822‐Contra Costa County CaliforniaUnited States North AmericayesI1493514935 IBivalviaModiolushenryiParatypeCretaceous3822‐Contra Costa County CaliforniaUnited StatesNorth AmericayesI1493614936IBivalviaModiolushenryiParatypeCretaceous3822‐Contra Costa County CaliforniaUnited States North AmericayesI1493714937 IBivalviaModiolushenryiParatypeCretaceous3822‐Contra Costa County CaliforniaUnited States North AmericayesI1494714947 ICephalopoda AturiamathewsoniiParatypeTertiaryPaleoceneIP12808Contra Costa County CaliforniaUnited States North AmericayesI1494814948 ICephalopoda Nautilussp.HypotypeTertiaryEoceneIP12788Contra Costa County CaliforniaUnited States North AmericayesI1495214952 ICephalopoda SchluteriadiabloensisParatypeCretaceousIP12133Contra Costa County CaliforniaUnited States North AmericayesI1500115001 IBivalviaMyadickersoniHypotypeTertiaryMiocene1617‐Contra Costa County CaliforniaUnited States North AmericayesI1500215002 IBivalviaMyadickersoniHypotypeTertiaryMiocene1617‐Contra Costa County CaliforniaUnited States North AmericayesI1500315003 IBivalviaMyaarrosisParatypeTertiaryOligocene1687‐Contra Costa County CaliforniaUnited States North AmericayesI1500415004 IBivalviaMyaarrosisParatypeTertiaryMiocene1617‐Contra Costa County CaliforniaUnited States North AmericayesI1500515005 IBivalviaMyaarrosisParatypeTertiaryMiocene1227‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI1500615006 IBivalviaMyaarrosisParatypeTertiaryMiocene1227‐Contra Costa County CaliforniaUnited States North AmericayesI1507515075 IGastropodaNassariuswhitneyiHypotypeTertiaryMioceneA4920Contra Costa County CaliforniaUnited States North AmericayesI1507615076 IGastropodaNassariuswhitneyiHypotypeTertiaryMioceneA4925Contra Costa County CaliforniaUnited States North AmericayesI1507715077 IGastropodaNassariuswhitneyiHypotypeTertiaryMioceneB4749Contra Costa County CaliforniaUnited States North AmericayesI1507815078 IGastropodaNassariuswhitneyiHypotypeTertiaryMioceneB4749Contra Costa County CaliforniaUnited States North AmericayesI1521815218 IGastropodaTurritellacf. broderipiana aff. marmorataHypotypeTertiaryMiocene1462‐Contra Costa County CaliforniaUnited States North AmericayesI1521915219 IGastropodaTurritellavariegataHypotypeTertiaryMiocene1463‐Contra Costa County CaliforniaUnited States North AmericayesI1522315223 IGastropodaTurritellamerriamibrevitabulataHypotypeTertiaryPaleocene3159‐Contra Costa County CaliforniaUnited States North AmericayesI1522515225 IGastropodaTurritellamerriamibrevitabulataHypotypeTertiaryPaleocene3151‐Contra Costa County CaliforniaUnited States North AmericayesI1522715227 IGastropodaTurritellamerriamibrevitabulataHypotypeTertiaryPaleocene3156‐Contra Costa County CaliforniaUnited States North AmericayesI1522915229 IGastropodaTurritellamerriamibrevitabulataHypotypeTertiaryPaleocene3159‐Contra Costa County CaliforniaUnited States North AmericayesI1532915329 IGastropodaTurritellatolenasensisParatypeCretaceousIP12132Contra Costa County CaliforniaUnited States North AmericayesI1534615346 IGastropodaTurritellapachecoensisHypotypeTertiaryIP12131Contra Costa County CaliforniaUnited States North AmericayesI1534815348 IGastropodaTurritellainfragranulataHypotypeTertiaryPaleocene501‐Contra Costa County CaliforniaUnited States North AmericayesI1534915349 IGastropodaTurritellainfragranulataHypotypeTertiaryPaleocene213‐Contra Costa County CaliforniaUnited States North AmericayesI1535215352 IGastropodaTurritellameganosensisHypotypeTertiaryPaleocene3152‐Contra Costa County CaliforniaUnited States North AmericayesI1543115431 IMaxillopoda CandonalacteaacuminataHolotypeIP12594Contra Costa County CaliforniaUnited States North AmericayesI1546815468 IGastropodaClavilithessp.PlesiotypeTertiaryPaleocene3236‐Contra Costa County CaliforniaUnited States North AmericayesI1547115471 IBivalviaPlatyodonpeckiHolotypeTertiaryEoceneA7762Contra Costa County CaliforniaUnited States North AmericayesI1547215472IBivalviaPlatyodonpeckiParatypeTertiaryEoceneA7762Contra Costa County CaliforniaUnited States North AmericayesI1547315473 IBivalviaPlatyodonpeckiParatypeTertiaryEoceneA7762Contra Costa County CaliforniaUnited States North AmericayesI1547415474 IBivalviaPlatyodonpeckiParatypeTertiaryEoceneA7762Contra Costa County CaliforniaUnited States North AmericayesI1553615536 IGastropodaActeoninacalifornicaParatypeCretaceousIP11347Contra Costa County CaliforniaUnited States North AmericayesI1553815538 IGastropodaActeoninacalifornicaParatypeCretaceousIP11347Contra Costa County CaliforniaUnited States North AmericayesI1553915539 IGastropodaActeoninacalifornicaParatypeCretaceousIP11347Contra Costa County CaliforniaUnited States North AmericayesI1554015540 IGastropodaCinuliaobliquaParatypeCretaceousIP11347Contra Costa County CaliforniaUnited States North AmericayesI1557615576 IBivalviaAviculapellucidaCotypeTertiaryEoceneIP12810Contra Costa County CaliforniaUnited States North AmericayesI1590915909 IBivalviaMyaincognitaParatypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI1592215922 IBivalviaPlatyodonpeckiParatypeTertiaryEoceneA7762Contra Costa County CaliforniaUnited States North AmericayesI1592315923 IBivalviaPlatyodonpeckiParatypeTertiaryEoceneA7762Contra Costa County CaliforniaUnited States North AmericayesI1592515925 IBivalviaPlatyodonpeckiParatypeTertiaryEoceneA7762Contra Costa County CaliforniaUnited States North AmericayesI1598915989 IEchinoideaEoscutellasp.HypotypeTertiaryEoceneA1612Contra Costa County CaliforniaUnited States North AmericayesI1599015990 IEchinoideaEoscutellasp.HypotypeTertiaryEoceneA1612Contra Costa County CaliforniaUnited States North AmericayesI3000730007 IBivalviaMytilusarlingtoniHolotypeCretaceous3826‐Contra Costa County CaliforniaUnited States North AmericayesI3000830008 IBivalviaMytilusarlingtoniParatypeCretaceous3826‐Contra Costa County CaliforniaUnited States North AmericayesI3001030010 IBivalviaModiolushenryiHolotypeCretaceous3822‐Contra Costa County CaliforniaUnited States North AmericayesI3001130011 IBivalviaModiolushenryiParatypeCretaceous3822‐Contra Costa County CaliforniaUnited States North AmericayesI3001230012 IBivalviaDosiniasp.HypotypeTertiaryOligoceneA4660Contra Costa County CaliforniaUnited States North AmericayesI3001330013 IBivalviaDosiniasp.HypotypeTertiaryOligoceneA4660Contra Costa County CaliforniaUnited States North AmericayesI3006030060 IAnthozoaPlatytrochus diabloensisHolotypeTertiaryEoceneA3872Contra Costa County CaliforniaUnited States North AmericayesI3006430064 IAnthozoaPlatytrochus diabloensisParatypeTertiaryEoceneA3872Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI3006830068 IAnthozoaHamesiastraea petrosaHypotype?TertiaryPaleoceneIP12613Contra Costa County CaliforniaUnited States North AmericayesI3006930069 IAnthozoaHamesiastraea petrosaHypotype?TertiaryPaleoceneIP12613Contra Costa County CaliforniaUnited States North AmericayesI3007430074 IAnthozoaPlatytrochus diabloensisParatypeTertiaryEoceneA3872Contra Costa County CaliforniaUnited States North AmericayesI3007830078 IAnthozoaPlatytrochus diabloensisParatypeTertiaryEoceneA3872Contra Costa County CaliforniaUnited States North AmericayesI3008230082 IAnthozoaCyclolites?sp.HypotypeTertiaryEoceneA3821Contra Costa County CaliforniaUnited States North AmericayesI3008730087 IAnthozoaCyclolites?sp.HypotypeTertiaryEoceneA3821Contra Costa County CaliforniaUnited States North AmericayesI3008930089 IAnthozoaCyclolites?sp.HypotypeTertiaryEoceneA3821Contra Costa County CaliforniaUnited States North AmericayesI3009230092 IAnthozoaFlabellumremondianumHypotypeTertiaryPaleoceneA1621Contra Costa County CaliforniaUnited States North AmericayesI3010130101 IBivalviaPenitelladurhamiHolotypeTertiaryEoceneA7762Contra Costa County CaliforniaUnited States North AmericayesI3010230102 IBivalviaPenitelladurhamiParatypeTertiaryEoceneA7762Contra Costa County CaliforniaUnited States North AmericayesI3010330103 IBivalviaPenitelladurhamiParatypeTertiaryEoceneA7762Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI3010430104 IBivalviaPenitelladurhamiParatypeTertiaryEoceneA7762Contra Costa County CaliforniaUnited States North AmericayesI3010530105 IBivalviaPenitelladurhamiParatypeTertiaryEoceneA7762Contra Costa County CaliforniaUnited States North AmericayesI3010830108 IBivalviaPenitelladurhamiParatypeTertiaryEoceneA7762Contra Costa County CaliforniaUnited States North AmericayesI3015130151 IBivalviaClinocardium pristinumParatypeTertiaryMiocene1943‐Contra Costa County CaliforniaUnited States North AmericayesI3015230152 IBivalviaClinocardium pristinumParatypeTertiaryMiocene1943‐Contra Costa County CaliforniaUnited States North Americayes I3015330153 IBivalviaClinocardium pristinumParatypeTertiaryMiocene1943‐Contra Costa County CaliforniaUnited States North AmericayesI3027930279 IGastropodaTurritellauvasanaaedificataHypotypeTertiaryEoceneA4311Contra Costa County CaliforniaUnited States North AmericayesI3028330283 ICephalopoda Eutrephoceras aff. E. stephensoniHypotypeIP12165Contra Costa County CaliforniaUnited States North AmericayesI3032330323 IBivalviaPholadidealorenzanaHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI3033030330 IBivalviaPanoperamonensisHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI3033130331 IBivalviaPanoperamonensisParatypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI3034430344 IBivalviaSpisulasubquadrataHolotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI3041230412 IBivalviaVenericardia horniicalafiaHypotypeTertiaryEocene1426‐Contra Costa County CaliforniaUnited States North AmericayesI3058930589 IBivalviaCallocardiasimiensisCotypeTertiaryPaleocene243‐Contra Costa County CaliforniaUnited States North AmericayesI3067130671 IBivalviaVolsellacf. gabbiHypotypeTertiaryPlioceneA2569Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI3067230672 IGastropodaCalyptraeacf. martiniHypotypeTertiaryPlioceneA2569Contra Costa County CaliforniaUnited States North AmericayesI3067330673 IBivalviaTivelagabbiHypotypeTertiaryPlioceneA2569Contra Costa County CaliforniaUnited States North AmericayesI3067430674 IBivalviaChionesemiplicataHypotypeTertiaryPlioceneA2569Contra Costa County CaliforniaUnited States North AmericayesI3067530675 IBivalviaMytilustrampasensisHypotypeTertiaryPlioceneA2568Contra Costa County CaliforniaUnited States North AmericayesI3077930779 IBivalviaYoldiatenuissimaHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI3116931169 IBivalviaTellinatenuilineataParatypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI3117231172 IBivalviaAcilashumardiHypotypeTertiaryMiocene,Oligocene 78‐Contra Costa County CaliforniaUnited States North AmericayesI3117331173 IGastropodaAncillafishiiHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI3117431174 IGastropodaAstraliumraymondiHolotypeTertiaryMiocene1192‐Contra Costa County CaliforniaUnited States North AmericayesI3117831178 IGastropodaPerrisolaxgabbiHolotypeTertiaryPaleocene532‐Contra Costa County CaliforniaUnited States North AmericayesI3117931179 IGastropodaFususaratusHypotypeTertiaryPaleocene243‐Contra Costa County CaliforniaUnited States North AmericayesI3118431184 IBivalviaPectenestrellanusHypotypeTertiaryMioceneIP12659Contra Costa County CaliforniaUnited States North AmericayesI3120531205 IBivalviaTellinaaequalisPlastoholotype CretaceousLate Cretaceous IP12660Contra Costa County CaliforniaUnited States North AmericayesI3123131231 IGastropodaBulbifususcalifornicusHolotypeTertiaryPaleocene3156‐Contra Costa County CaliforniaUnited States North AmericayesI3123231232 IGastropodaBulbifususcalifornicusParatypeTertiaryPaleocene3577‐Contra Costa County CaliforniaUnited States North AmericayesI3123331233 IGastropodaBulbifususcalifornicusParatypeTertiaryPaleocene3156‐Contra Costa County CaliforniaUnited States North AmericayesI3123431234 IGastropodaBrachysphingus mammilatusHolotypeTertiaryPaleocene3157‐Contra Costa County CaliforniaUnited States North AmericayesI3123531235 IGastropodaBrachysphingus mammilatusParatypeTertiaryEocene3557‐Contra Costa County CaliforniaUnited States North AmericayesI3123631236 IGastropodaBrachysphingus mammilatusParatypeTertiaryPaleocene3159‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI3123731237 IGastropodaBrachysphingus mammilatusParatypeTertiaryPaleocene3159‐Contra Costa County CaliforniaUnited States North AmericayesI3123831238 IGastropodaBrachysphingus mammilatusParatypeTertiaryPaleocene3577‐Contra Costa County CaliforniaUnited States North AmericayesI3124131241 IGastropodaFicopsismeganosensisParatypeTertiaryPaleocene3150‐Contra Costa County CaliforniaUnited States North AmericayesI3124231242 IGastropodaFicopsismeganosensisParatypeTertiaryPaleocene3151‐Contra Costa County CaliforniaUnited States North AmericayesI3124331243 IGastropodaFusinusmeganosensisHolotypeTertiaryPaleocene3150‐Contra Costa County CaliforniaUnited States North AmericayesI3124431244 IGastropodaGaleodeasutterensisHypotypeTertiaryPaleocene3152‐Contra Costa County CaliforniaUnited States North AmericayesI3124531245 IGastropodaGemmuladiabloensisHolotypeTertiaryPaleocene3579‐Contra Costa County CaliforniaUnited States North AmericayesI3124631246 IGastropodaHaminoeapostangulataHolotypeTertiaryPaleocene3150‐Contra Costa County CaliforniaUnited States North AmericayesI3124731247 IGastropodaMolopophorus californicusHolotypeTertiaryPaleocene3577‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI3124831248 IGastropodaMolopophorus californicusParatypeTertiaryPaleocene3577‐Contra Costa County CaliforniaUnited States North AmericayesI3124931249 IGastropodaOdostomiadiaboliHolotypeTertiaryPaleocene3579‐Contra Costa County CaliforniaUnited States North AmericayesI3125031250 IGastropodaOlivameganosensisHolotypeTertiaryPaleocene3150‐Contra Costa County CaliforniaUnited States North AmericayesI3125131251 IGastropodaOlivameganosensisParatypeTertiaryPaleocene3158‐Contra Costa County CaliforniaUnited States North AmericayesI3125231252 IGastropodaParvisipho?meganosensisHolotypeTertiaryPaleocene3159‐Contra Costa County CaliforniaUnited States North AmericayesI3125331253 IGastropodaPolinicesgesteriHypotypeTertiaryPaleocene3578‐Contra Costa County CaliforniaUnited States North AmericayesI3125431254 IGastropodaPolinicesgesteriHypotypeTertiaryPaleocene3159‐Contra Costa County CaliforniaUnited States North AmericayesI3125531255 IGastropodaPoliniceshorniiHypotypeTertiaryPaleocene3159‐Contra Costa County CaliforniaUnited States North AmericayesI3125631256 IGastropodaPoliniceshorniiHypotypeTertiaryPaleocene3580‐Contra Costa County CaliforniaUnited StatesNorth AmericayesI3125931259IGastropodaPseudolivacf. dilleriHypotypeTertiaryPaleocene3152‐Contra Costa County CaliforniaUnited States North AmericayesI3126131261 IGastropodaScaphandercf. costatusHypotypeTertiaryPaleocene3156‐Contra Costa County CaliforniaUnited States North AmericayesI3126331263 IGastropodaNeveritaglobosaHypotypeTertiaryPaleocene3586‐Contra Costa County CaliforniaUnited States North AmericayesI3126431264 IGastropodaTurriculacooperiHypotypeTertiaryPaleocene3152‐Contra Costa County CaliforniaUnited States North AmericayesI3126531265 IGastropodaTurriculacooperiHypotypeTertiaryPaleocene3152‐Contra Costa County CaliforniaUnited States North AmericayesI3126731267 IGastropodaDrilliahartleyensisHolotypeTertiaryPaleocene3609‐Contra Costa County CaliforniaUnited States North AmericayesI3126831268 IGastropodaDrilliahartleyensisParatypeTertiaryPaleocene3159‐Contra Costa County CaliforniaUnited States North AmericayesI3126931269 IGastropodaParvisipho?meganosensisParatypeTertiaryPaleocene3159‐Contra Costa County CaliforniaUnited States North AmericayesI3127031270 IGastropodaPolinicesnuciformisHypotypeTertiaryPaleocene3580‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI3127231272 IGastropodaTurbonillamarshensisHolotypeTertiaryPaleocene3580‐Contra Costa County CaliforniaUnited States North AmericayesI3127331273 IGastropodaTurriculacooperiHypotypeTertiaryPaleocene3152‐Contra Costa County CaliforniaUnited States North AmericayesI3127731277 IBivalviaCardiumhartleyensisHolotypeTertiaryPaleocene3609‐Contra Costa County CaliforniaUnited States North AmericayesI3127831278 IBivalviaCardiummarysvillensisHypotypeTertiaryPaleocene3152‐Contra Costa County CaliforniaUnited States North AmericayesI3127931279 IBivalviaCorbuladiaboliHolotypeTertiaryPaleocene3150‐Contra Costa County CaliforniaUnited States North AmericayesI3128031280 IBivalviaCorbuladiaboliParatypeTertiaryPaleocene3150‐Contra Costa County CaliforniaUnited States North AmericayesI3128131281 IBivalviaCorbuladiaboliParatypeTertiaryPaleocene3150‐Contra Costa County CaliforniaUnited States North AmericayesI3128331283 IBivalviaCrassatellameganosensisHolotypeTertiaryPaleocene3159‐Contra Costa County CaliforniaUnited States North AmericayesI3128431284 IBivalviaCrassatellameganosensisParatypeTertiaryPaleocene3159‐Contra Costa County CaliforniaUnited StatesNorth AmericayesI3128531285IBivalviaCrassatellameganosensisParatypeTertiaryPaleocene3152‐Contra Costa County CaliforniaUnited States North AmericayesI3128631286 IBivalviaDiplodontacretaceaHypotypeTertiaryPaleocene3578‐Contra Costa County CaliforniaUnited States North AmericayesI3128731287 IBivalviaDosiniopsisstewartvillensisHolotypeTertiaryPaleocene3159‐Contra Costa County CaliforniaUnited States North AmericayesI3128831288 IBivalviaDosiniopsisstewartvillensisParatypeTertiaryPaleocene3577‐Contra Costa County CaliforniaUnited States North AmericayesI3128931289 IBivalviaGlycymerismajorvar. meganosensisHolotypeTertiaryPaleocene3152‐Contra Costa County CaliforniaUnited States North AmericayesI3129031290 IBivalviaGlycymerismajorvar. meganosensisParatypeTertiaryPaleocene3152‐Contra Costa County CaliforniaUnited States North AmericayesI3129131291 IBivalviaLedagabbiHypotypeTertiaryPaleocene3152‐Contra Costa County CaliforniaUnited States North AmericayesI3129431294 IBivalviaLyonsiaventuraensisParatypeTertiaryPaleocene3152‐Contra Costa County CaliforniaUnited States North AmericayesI3129531295 IBivalviaMacrocallista meganosensisHolotypeTertiaryPaleocene3577‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI3129631296 IBivalviaMacrocallista meganosensisParatypeTertiaryPaleocene3152‐Contra Costa County CaliforniaUnited States North AmericayesI3129731297 IBivalviaMartesiameganosensisHolotypeTertiaryPaleocene3577‐Contra Costa County CaliforniaUnited States North AmericayesI3129831298 IBivalviaMartesiameganosensisParatypeTertiaryPaleocene3159‐Contra Costa County CaliforniaUnited States North AmericayesI3129931299 IBivalviaModiolusornatusHypotypeTertiaryPaleocene3579‐Contra Costa County CaliforniaUnited States North AmericayesI3130131301 IBivalviaPedalionsp.HypotypeTertiaryPaleocene3609‐Contra Costa County CaliforniaUnited States North AmericayesI3130331303 IBivalviaPhacoidesmeganosensisHolotypeTertiaryPaleocene3159‐Contra Costa County CaliforniaUnited States North AmericayesI3130431304 IBivalviaPhacoidesmeganosensisParatypeTertiaryPaleocene3159‐Contra Costa County CaliforniaUnited States North AmericayesI3130531305 IBivalviaPhacoidesmeganosensisParatypeTertiaryPaleocene3152‐Contra Costa County CaliforniaUnited States North AmericayesI3130631306 IBivalviaPitarcalifornianastewartvillensisHolotypeTertiaryPaleocene3580‐Contra Costa County CaliforniaUnited StatesNorth AmericayesI3130731307IBivalviaPitarcalifornianastewartvillensisParatypeTertiaryPaleocene3237‐Contra Costa County CaliforniaUnited States North AmericayesI3130831308 IBivalviaPitarcalifornianastewartvillensisParatypeTertiaryPaleocene3237‐Contra Costa County CaliforniaUnited States North AmericayesI3130931309 IBivalviaPitarcalifornianastewartvillensisParatypeTertiaryPaleocene3152‐Contra Costa County CaliforniaUnited States North AmericayesI3131331313 IBivalviaPitarpalmeriHolotypeTertiaryPaleocene3158‐Contra Costa County CaliforniaUnited States North AmericayesI3131431314 IBivalviaPitarpalmeriParatypeTertiaryPaleocene3158‐Contra Costa County CaliforniaUnited States North AmericayesI3131531315 IBivalviaPitaruvasanusmarshensisHolotypeTertiaryPaleocene3152‐Contra Costa County CaliforniaUnited States North AmericayesI3131631316 IBivalviaPitaruvasanusmarshensisParatypeTertiaryPaleocene3152‐Contra Costa County CaliforniaUnited States North AmericayesI3131731317 IBivalviaPitaruvasanusmarshensisParatypeTertiaryPaleocene3152‐Contra Costa County CaliforniaUnited States North AmericayesI3131831318 IBivalviaPitaruvasanusmarshensisParatypeTertiaryPaleocene3577‐Contra Costa County CaliforniaUnited States North AmericayesI3131931319 IBivalviaPsammobia?sp.HypotypeTertiaryPaleocene3152‐Contra Costa County CaliforniaUnited States North AmericayesI3132031320 IBivalviaPsammobia? sp.HypotypeTertiaryPaleocene3152‐Contra Costa County CaliforniaUnited States North AmericayesI3132131321 IBivalviaPteriasp.TertiaryPaleocene3152‐Contra Costa County CaliforniaUnited States North AmericayesI3132231322 IBivalviaSolemyasp.HypotypeTertiaryEocene3162‐Contra Costa County CaliforniaUnited States North AmericayesI3132431324 IBivalviaSolenstantoniHypotypeTertiaryPaleocene3159‐Contra Costa County CaliforniaUnited States North AmericayesI3132631326 IBivalviaSphenia?meganosensisHolotypeTertiaryPaleocene3586‐Contra Costa County CaliforniaUnited States North AmericayesI3132731327 IBivalviaSphenia?meganosensisParatypeTertiaryPaleocene3586‐Contra Costa County CaliforniaUnited States North AmericayesI3132831328 IBivalviaTivelakelloggensisParatypeTertiaryPaleocene3578‐Contra Costa County CaliforniaUnited States North AmericayesI3132931329 IBivalviaSpisulasp.HypotypeTertiaryPaleocene3151‐Contra Costa County CaliforniaUnited States North AmericayesI3133031330 IBivalviaTellinacf. T. joaquinensisHypotypeTertiaryPaleocene3150‐Contra Costa County CaliforniaUnited States North AmericayesI3133131331 IBivalviaTellinaremondiiHypotypeTertiaryEocene3162‐Contra Costa County CaliforniaUnited States North AmericayesI3133231332 IBivalviaTellinalongaHypotypeTertiaryPaleocene3577‐Contra Costa County CaliforniaUnited States North AmericayesI3133431334 IBivalviaTivelakelloggensisHolotypeTertiaryPaleocene3586‐Contra Costa County CaliforniaUnited States North AmericayesI3133531335 IBivalviaTivelakelloggensisParatypeTertiaryPaleocene3586‐Contra Costa County CaliforniaUnited States North AmericayesI3133631336 IBivalviaTivelakelloggensisParatypeTertiaryPaleocene3586‐Contra Costa County CaliforniaUnited States North AmericayesI3133731337 IBivalviaYoldiamortuasusensisHolotypeTertiaryPaleocene3577‐Contra Costa County CaliforniaUnited States North AmericayesI3133831338 IBivalviaSpisulameganosensisHolotypeTertiaryPaleocene3579‐Contra Costa County CaliforniaUnited States North Americayes I3133931339 IBivalviaSpisulameganosensisParatypeTertiaryPaleocene3586‐Contra Costa County CaliforniaUnited States North AmericayesI3134031340 IBivalviaJouannetiasp.HypotypeTertiaryPaleocene3158‐Contra Costa County CaliforniaUnited States North AmericayesI3136431364 IGastropodaGemmuladiabloensisParatypeTertiaryPaleocene3152‐Contra Costa County CaliforniaUnited States North AmericayesI3136531365 IGastropodaStrepsidura? diabloensisHolotypeTertiaryPaleocene3577‐Contra Costa County CaliforniaUnited States North AmericayesI3136631366 IGastropodaStrepsidura? diabloensisParatypeTertiaryPaleocene3577‐Contra Costa County CaliforniaUnited States North AmericayesI3136731367 IGastropodaSolariellahartleyensisHolotypeTertiaryPaleocene3159‐Contra Costa County CaliforniaUnited States North AmericayesI3137831378 IGastropodaGemmulawattsiHypotypeTertiaryPaleocene3159‐Contra Costa County CaliforniaUnited States North AmericayesI3138431384 IGastropodaNeptuneagracilisHolotypeTertiaryEoceneIP12883Contra Costa County CaliforniaUnited States North AmericayesI3139531395 IGastropodaPugnellushamulusHolotypeCretaceousIP11345Contra Costa County CaliforniaUnited States North AmericayesI3140231402 IGastropodaTrophonponderosumHolotypeTertiaryMioceneIP11316Contra Costa County CaliforniaUnited States North AmericayesI3140331403 IGastropodaCypraeabayerqueiHolotypeTertiaryPaleocene?IP12672Contra Costa County CaliforniaUnited States North AmericayesI3141431414 IAnthozoaArchoheliaclarkiCotypeTertiaryPaleocene3609‐Contra Costa County CaliforniaUnited States North AmericayesI3141531415 IAnthozoaArchoheliaclarkiCotypeTertiaryPaleocene3609‐Contra Costa County CaliforniaUnited States North AmericayesI3142831428 IBivalviaArcahorniielusaHolotypeTertiaryPaleocene3579‐Contra Costa County CaliforniaUnited States North AmericayesI3142931429 IBivalviaGlycymerisveatchiivar. majorHypotypeTertiaryPaleocene1540‐Contra Costa County CaliforniaUnited States North AmericayesI3144931449 IBivalviaCrassatellites grandisLectotypeTertiaryEoceneIP12795Contra Costa County CaliforniaUnited States North AmericayesI3145131451 IBivalviaTellinaremondiiHolotypeTertiaryEoceneIP12830Contra Costa County CaliforniaUnited States North AmericayesI3145231452 IBivalviaTellinadecurtataHolotypeCretaceousIP11371Contra Costa County CaliforniaUnited States North AmericayesI3145731457 IBivalviaMeekiasellaHolotypeCretaceousIP12681Contra Costa County CaliforniaUnited States North AmericayesI3145831458 IBivalviaMeekianavisHolotypeCretaceousIP12682Contra Costa County CaliforniaUnited States North America0000 0000 0412 1089 yesI3189331893 ICephalopoda AturiamatthewsoniiLectotypeTertiaryPaleoceneIP244Contra Costa County CaliforniaUnited States North AmericayesI3195431954 IBivalviaMarciaangustifrons var. brevilineataHypotypeTertiaryMiocene360‐Contra Costa County CaliforniaUnited States North AmericayesI3199231992 IGastropodaBruclarkiaoregonensisHypotypeTertiaryMiocene54‐Contra Costa County CaliforniaUnited States North AmericayesI3226932269 IAnthozoaTurbinoliapusillamimaTopotypeTertiaryEocene476‐Contra Costa County CaliforniaUnited States North AmericayesI3229932299 IEchinoideaAstrodapsistumidusHypotypeTertiaryMioceneA4786Contra Costa County CaliforniaUnited States North AmericayesI3230032300 IEchinoideaAstrodapsistumidusHypotypeTertiaryMioceneA4786Contra Costa County CaliforniaUnited States North AmericayesI3241232412 IBivalviaLedaprotextaParatype?TertiaryPaleoceneIP200Contra Costa County CaliforniaUnited States North AmericayesI3241332413 IBivalviaLedaprotextaParatype?TertiaryPaleoceneIP200Contra Costa County CaliforniaUnited States North AmericayesI3241432414 IBivalviaLedaprotextaParatype?TertiaryPaleoceneIP200Contra Costa County CaliforniaUnited States North AmericayesI3241532415 IBivalviaLedaprotextaParatype?TertiaryPaleoceneIP200Contra Costa County CaliforniaUnited StatesNorth AmericayesI3241632416IBivalviaLedaprotextaParatype?TertiaryPaleoceneIP200Contra Costa County CaliforniaUnited States North AmericayesI3241732417 IBivalviaLedaprotextaParatype?TertiaryPaleoceneIP200Contra Costa County CaliforniaUnited States North AmericayesI3241832418 IBivalviaLedaprotextaParatype?TertiaryPaleoceneIP200Contra Costa County CaliforniaUnited States North AmericayesI3242632426 IGastropodaBruclarkiagravidaHypotypeTertiaryOligoceneA4661Contra Costa County CaliforniaUnited States North AmericayesI3243232432 IAnthozoaBalanophyllia variabilisHypotypeTertiaryEoceneA4300Contra Costa County CaliforniaUnited States North AmericayesI3243732437 IGastropodaCylindritesbrevisParatypeCretaceousLate Cretaceous IP12426Contra Costa County CaliforniaUnited States North AmericayesI3243932439 IBivalviaAnadaramediaimpressaHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI3244432444 IGastropodaAgasomaacuminatumHypotypeTertiaryOligoceneIP12088Contra Costa County CaliforniaUnited States North AmericayesI3245732457 IGastropodaMolopophorus fishiiHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI3248632486 IGastropodaGyrauluspabloanusHypotypeTertiaryPlioceneB7268Contra Costa County CaliforniaUnited States North AmericayesI3250132501 IBivalviaPlatyodonclarkiParatypeTertiaryMiocene1942‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI3250332503 IBivalviaPenitelladurhamiParatypeTertiaryEoceneA7762Contra Costa County CaliforniaUnited States North AmericayesI3250432504 IBivalviaPenitelladurhamiParatypeTertiaryEoceneA7762Contra Costa County CaliforniaUnited States North AmericayesI3250532505 IBivalviaPenitelladurhamiParatypeTertiaryEoceneA7762Contra Costa County CaliforniaUnited States North AmericayesI3250632506 IBivalviaPenitelladurhamiParatypeTertiaryEoceneA7762Contra Costa County CaliforniaUnited States North AmericayesI3250732507 IBivalviaPenitelladurhamiParatypeTertiaryEoceneA7762Contra Costa County CaliforniaUnited States North AmericayesI3250832508 IBivalviaPenitelladurhamiParatypeTertiaryEoceneA7762Contra Costa County CaliforniaUnited States North AmericayesI3251132511 IBivalviaPlatyodonclarkiParatypeTertiaryMiocene1942‐Contra Costa County CaliforniaUnited States North AmericayesI3251332513 IBivalviaPlatyodonclarkiParatypeTertiaryMiocene1942‐Contra Costa County CaliforniaUnited States North AmericayesI3251432514 IBivalviaPlatyodonclarkiParatypeTertiaryMiocene1942‐Contra Costa County CaliforniaUnited States North AmericayesI3251632516 IBivalviaPlatyodonclarkiParatypeTertiaryMiocene1942‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI3251732517 IBivalviaPlatyodonclarkiParatypeTertiaryMiocene1942‐Contra Costa County CaliforniaUnited States North AmericayesI3251832518 IBivalviaPlatyodonclarkiParatypeTertiaryMiocene1942‐Contra Costa County CaliforniaUnited States North AmericayesI3252032520 IBivalviaPlatyodonclarkiParatypeTertiaryMiocene1942‐Contra Costa County CaliforniaUnited States North AmericayesI3262232622 IBivalviaApolymetisbiangulataHypotypeTertiaryEocene1668‐Contra Costa County CaliforniaUnited States North AmericayesI3262632626 IBivalviaApolymetisbiangulataHypotypeTertiaryEocene1668‐Contra Costa County CaliforniaUnited States North AmericayesI3266332663 IBivalviaMytiluspauperculusParatypeCretaceousLate Cretaceous IP12780Contra Costa County CaliforniaUnited States North AmericayesI3266532665 IBivalviaPectendiscusHypotypeTertiaryMioceneIP12098Contra Costa County CaliforniaUnited States North AmericayesI3269832698 IBivalviaPectencrassicardoHypotypeTertiaryMioceneIP12100Contra Costa County CaliforniaUnited States North AmericayesI3271632716 IBivalviaModiolusmerriamiTopotypeTertiaryPaleocene333‐Contra Costa County CaliforniaUnited States North AmericayesI3272032720 IBivalviaModiolaornataParatypeTertiaryPaleoceneIP12861Contra Costa County CaliforniaUnited States North AmericayesI3275132751 IBivalviaCoralliophaga sp.HypotypeTertiaryPaleocene3609‐Contra Costa County CaliforniaUnited States North AmericayesI3275632756 IBivalviaCrassatellastudleyiHolotypeTertiaryPaleocene1540‐Contra Costa County CaliforniaUnited States North AmericayesI3276632766 IBivalviaModiolaornataParatypeTertiaryPaleoceneIP12861Contra Costa County CaliforniaUnited States North AmericayesI3278332783 IBivalviaCyrenacalifornicaHypotypeTertiaryMioceneIP12862Contra Costa County CaliforniaUnited States North AmericayesI3279932799 IBivalviaVenericardia diabloensisParatypeTertiaryEoceneIP12105Contra Costa County CaliforniaUnited States North AmericayesI3280332803 IBivalviaVenericardia horniiPlastohypotype TertiaryEoceneIP12863Contra Costa County CaliforniaUnited States North AmericayesI3281332813 IBivalviaTellinahoffmannianaParatypeCretaceousIP11353Contra Costa County CaliforniaUnited States North AmericayesI3281832818 IBivalviaModiolaornataParatypeTertiaryPaleoceneIP12861Contra Costa County CaliforniaUnited States North AmericayesI3287232872 IBivalvia?MysiapolitaParatypeTertiaryEoceneIP11388Contra Costa County CaliforniaUnited States North AmericayesI3287832878 IBivalviaVenustetrahedraParatypeTertiaryPaleoceneIP11384Contra Costa County CaliforniaUnited StatesNorth AmericayesI3287932879IBivalviaVenustetrahedraParatypeTertiaryPaleoceneIP11384Contra Costa County CaliforniaUnited States North AmericayesI3288032880 IBivalviaVenustetrahedraParatypeTertiaryPaleoceneIP11384Contra Costa County CaliforniaUnited States North AmericayesI3291632916 IBivalviaClinocardium praeblandumParatypeTertiaryMiocene1262‐Contra Costa County CaliforniaUnited States North AmericayesI3291732917 IBivalviaClinocardium pristinumParatypeTertiaryMiocene1943‐Contra Costa County CaliforniaUnited States North AmericayesI3291832918 IBivalviaClinocardium praeblandumParatypeTertiaryMiocene1947‐Contra Costa County CaliforniaUnited States North AmericayesI3299232992 IGastropodaHelminthoglypta sp.HypotypeTertiaryPlioceneB7270Contra Costa County CaliforniaUnited States North AmericayesI3299332993 IGastropodaGoniobasissp.HypotypeTertiaryPlioceneB7268Contra Costa County CaliforniaUnited States North AmericayesI3306033060 IBivalviaMeekiasellaPlastohypotype CretaceousIP12115Contra Costa County CaliforniaUnited States North AmericayesI3330233302 IBivalviaTellinaparilisParatypeCretaceousIP12119Contra Costa County CaliforniaUnited States North AmericayesI3336933369 IGastropodaDistorsioreticulataHypotypeTertiaryMiocene142‐Contra Costa County CaliforniaUnited States North AmericayesI3340233402IEchinoideaRemondellagabbiHypotypeTertiaryMioceneIP12123Contra Costa County CaliforniaUnited States North AmericayesI3349133491 IBivalviaPholadidealorenzanaParatypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI3349733497 IGastropodaOpaliawroblewskyiHypotypeTertiaryMiocene525‐Contra Costa County CaliforniaUnited States North AmericayesI3373433734 IBivalviaDosiniawhitneyiHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI3383633836 IBivalviaTellinahoffmannianaPlastoparatype CretaceousIP11353Contra Costa County CaliforniaUnited States North AmericayesI3398833988 IGastropodaTurritellauvasanaaedificataHolotypeTertiaryEoceneA1421Contra Costa County CaliforniaUnited States North AmericayesI3398933989 IGastropodaTurritellauvasanaaedificataHolotypeTertiaryEoceneA1402Contra Costa County CaliforniaUnited States North AmericayesI3399033990 IGastropodaTurritellauvasanaaedificataParatypeTertiaryEoceneA1402Contra Costa County CaliforniaUnited States North AmericayesI3399133991 IGastropodaTurritellauvasanaaedificataParatypeTertiaryEoceneA1402Contra Costa County CaliforniaUnited States North AmericayesI3412034120 IBivalviaNuculanachehalisensisHypotypeTertiaryMioceneA4928Contra Costa County CaliforniaUnited States North AmericayesI3412134121 IBivalviaNuculanaimpressaHypotypeTertiaryMioceneA4933Contra Costa County CaliforniaUnited StatesNorth AmericayesI3412334123IBivalviaYoldiacooperiisupramontereyensisHypotypeTertiaryMioceneA4929Contra Costa County CaliforniaUnited States North AmericayesI3412634126 IBivalviaAnadaradevinctaPlastotypeTertiaryMioceneA4929Contra Costa County CaliforniaUnited States North AmericayesI3412734127 IBivalviaAnadaradevinctavar. montereyanaHypotypeTertiaryMioceneA4935Contra Costa County CaliforniaUnited States North AmericayesI3412834128 IBivalviaAnadaradevinctavar. montereyanaHypotypeTertiaryMioceneA4926Contra Costa County CaliforniaUnited States North AmericayesI3412934129 IBivalviaOstreasp.HypotypeTertiaryMioceneA4930Contra Costa County CaliforniaUnited States North AmericayesI3413034130 IBivalviaPectensp.HypotypeTertiaryMioceneA4923Contra Costa County CaliforniaUnited States North AmericayesI3413134131 IBivalviaPectensp.HypotypeTertiaryMioceneA4923Contra Costa County CaliforniaUnited States North AmericayesI3413234132 IBivalviaPectensp.HypotypeTertiaryMioceneA4923Contra Costa County CaliforniaUnited States North AmericayesI3413534135 IBivalviaMytilusedulisHypotypeTertiaryMioceneA4923Contra Costa County CaliforniaUnited States North AmericayesI3413834138 IBivalviaMacomasespeensisHypotypeTertiaryMiocene516‐Contra Costa County CaliforniaUnited States North AmericayesI3413934139 IBivalviaMacomasespeensisHypotypeTertiaryMioceneA4924Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI3414034140 IBivalviaSolensp.HypotypeTertiaryMioceneA4923Contra Costa County CaliforniaUnited States North AmericayesI3414134141 IBivalviaSolensp.HypotypeTertiaryMioceneA4923Contra Costa County CaliforniaUnited States North AmericayesI3414534145 IBivalviaSpisulacatilliformisHypotypeTertiaryMiocene305‐Contra Costa County CaliforniaUnited States North AmericayesI3414634146 IBivalviaSpisulacatilliformisHypotypeTertiaryMioceneA4928Contra Costa County CaliforniaUnited States North AmericayesI3415334153 IBivalviaDosiniawhitneyiHypotypeTertiaryMioceneA4923Contra Costa County CaliforniaUnited States North AmericayesI3415434154 IBivalviaMarciaangustifronsHypotypeTertiaryMioceneA4931Contra Costa County CaliforniaUnited States North Americayes I3415534155 IBivalviaPanopegenerosaHypotypeTertiaryMioceneA4923Contra Costa County CaliforniaUnited States North AmericayesI3415834158 IGastropodaPolinicesreclusianavar. andersoniHypotypeTertiaryMioceneA4928Contra Costa County CaliforniaUnited States North AmericayesI3416434164 IGastropodaBruclarkiasp.HypotypeTertiaryMioceneA4929Contra Costa County CaliforniaUnited States North AmericayesI3416534165 IGastropodaThaissp.HypotypeTertiaryMioceneA4931Contra Costa County CaliforniaUnited States North AmericayesI3416634166 IGastropodaThaissp.HypotypeTertiaryMioceneA4929Contra Costa County CaliforniaUnited States North AmericayesI3416734167 IGastropodaNassariuswhitneyiHypotypeTertiaryMioceneA4924Contra Costa County CaliforniaUnited States North AmericayesI3416934169 IGastropodaCancellariaweaveriHypotypeTertiaryMioceneA4929Contra Costa County CaliforniaUnited States North AmericayesI3426334263 IRhynchonellata PentamerusoblongusHypotypeTertiaryMiocene1942‐Contra Costa County CaliforniaUnited States North AmericayesI3462834628 IEchinoideaAstrodapsisantiselliHypotypeTertiaryMioceneA3176Contra Costa County CaliforniaUnited States North AmericayesI3471834718 IGastropodaScutusanatinusHypotypeTertiaryMiocene?68‐Contra Costa County CaliforniaUnited States North AmericayesI3471934719 IGastropodaScutusanatinusHypotypeTertiaryMiocene?68‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI3472834728 IGastropodaPatellacompressaHypotypeTertiaryEocene1654‐Contra Costa County CaliforniaUnited States North AmericayesI3473134731 IGastropodaNotomellacandidaHypotypeTertiaryMiocene307‐Contra Costa County CaliforniaUnited States North AmericayesI3484134841 IGastropodaNoetcagabbiPlastoholotype CretaceousLate Cretaceous IP12758Contra Costa County CaliforniaUnited States North AmericayesI3484234842 IGastropodaAnchuracarniferaPlastoholotype CretaceousLate Cretaceous IP12758Contra Costa County CaliforniaUnited States North AmericayesI3484334843 IGastropodaScalariamathewsoniPlastoholotype CretaceousLate Cretaceous IP12758Contra Costa County CaliforniaUnited States North AmericayesI3571435714 IBivalviaPharellaaltaPlastoparatype CretaceousIP11236Contra Costa County CaliforniaUnited States North AmericayesI3607436074 IBivalviaChionecaliforniensis var. gealyiHolotypeTertiaryPaleocene1657‐Contra Costa County CaliforniaUnited States North AmericayesI3607536075 IBivalviaChionecaliforniensis var. gealyiParatypeTertiaryPaleocene1657‐Contra Costa County CaliforniaUnited States North AmericayesI3607936079 IBivalviaChioneundatellasimillimaHypotypeTertiaryEocene1668‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI3609036090 IBivalviaSecurellacryptolineataHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI3609136091 IBivalviaSecurellacryptolineataHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI3609236092 IBivalviaSecurellacryptolineataHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI3609336093 IBivalviaSecurellacryptolineataHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI3609436094 IBivalviaSecurellacryptolineataHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI3609536095 IBivalviaSecurellacryptolineataHypotypeTertiaryOligocene1131‐Contra Costa County CaliforniaUnited States North AmericayesI3610236102 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CaliforniaUnited States North AmericayesI3637236372 IBivalviaAmussiumjaponicumHypotypeTertiaryMiocene,Oligocene 78‐Contra Costa County CaliforniaUnited States North AmericayesI3637336373 IBivalviaAmussiumjaponicumHypotypeTertiaryMiocene,Oligocene 78‐Contra Costa County CaliforniaUnited States North AmericayesI3638536385 IBivalviaAnadaramontereyanaHypotypeTertiaryMiocene305‐Contra Costa County CaliforniaUnited States North AmericayesI3639636396 IBivalviaPlacentapapyraceaHypotypeTertiaryMiocene,Oligocene 78‐Contra Costa County CaliforniaUnited States North AmericayesI3640436404 IBivalviaRuditapesdecussataHypotypeTertiaryMiocene130‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI3640636406 IBivalviaTapesmalabaricaHypotypeTertiaryMiocene,Oligocene 78‐Contra Costa County CaliforniaUnited States North AmericayesI3641236412 IBivalviaProtothacafluctifragaHypotypeTertiaryEocene1683‐Contra Costa County CaliforniaUnited States North AmericayesI3642136421 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North AmericayesI3654236542 IBivalviaMeretrixmeretrixHypotypeTertiaryMiocene10‐Contra Costa County CaliforniaUnited States North AmericayesI3654936549 IBivalviaHeterodonax bimaculataHypotypeTertiaryEocene1668‐Contra Costa County CaliforniaUnited States North AmericayesI3658536585 IBivalviaAphrodinavariansPlastolectotype CretaceousIP12022Contra Costa County CaliforniaUnited States North AmericayesI3658636586 IBivalviaAphrodinavariansSee BelowCretaceousIP12022Contra Costa County CaliforniaUnited States North AmericayesI3749937499 IGastropodaTurritellainfragranulataPlastoholotype CretaceousIP12022Contra Costa County CaliforniaUnited States North AmericayesI3799437994 IGastropodaPerissitysstantoniHypotypeCretaceous249‐Contra Costa County CaliforniaUnited States North AmericayesI3865638656 IBivalviaCalvavariansHypotypeCretaceousLate Cretaceous 2609‐Contra Costa County CaliforniaUnited States North AmericayesI5107151071 IMalacostraca 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IEchinoideaSchizasterleconteiTertiaryEocene1415‐Contra Costa County CaliforniaUnited States North America 0000 0000 0412 1682 yesI199001199001 IEchinoideaAstrodapsisTertiaryMiocene1465‐Contra Costa County CaliforniaUnited StatesNorth America0000 0000 0412 1683 yesI199002199002 IBivalviaTertiaryMiocene1477‐Contra Costa County CaliforniaUnited States North America 0000 0000 0412 1684 yesI199003199003 ICretaceous82‐Contra Costa County CaliforniaUnited States North AmericayesI199004199004 IBivalviaCretaceous82‐Contra Costa County CaliforniaUnited States North America 0000 0000 0412 1685 yesI230929230929 IBivalviaQuaternaryPleistoceneA4272Contra Costa County CaliforniaUnited States North AmericayesI230930230930 IBivalviaQuaternaryPleistoceneA4272Contra Costa County CaliforniaUnited States North AmericayesI230931230931 IBivalviaQuaternaryPleistoceneA4272Contra Costa County CaliforniaUnited States North AmericayesI230932230932 IBivalviaQuaternaryPleistoceneA4272Contra Costa County CaliforniaUnited States North AmericayesI230933230933 IBivalviaQuaternaryPleistoceneA4272Contra Costa CountyCaliforniaUnited States North AmericayesI230934230934 IBivalviaQuaternaryPleistoceneA4272Contra Costa County CaliforniaUnited States North AmericayesI239220239220 IBivalviaOstrealuridaTertiaryPlioceneB988Contra Costa County CaliforniaUnited States North AmericayesI239221239221 IBivalviaOstrealuridaTertiaryPlioceneB988Contra Costa County CaliforniaUnited States North AmericayesI239222239222 IBivalviaOstrealuridaTertiaryPlioceneB988Contra Costa County CaliforniaUnited States North AmericayesI239223239223 IBivalviaOstrealuridaTertiaryPlioceneB988Contra Costa County CaliforniaUnited States North AmericayesI239224239224 IBivalviaOstrealuridaTertiaryPlioceneB988Contra Costa County CaliforniaUnited States North AmericayesI239225239225 IBivalviaOstrealuridaTertiaryPlioceneB988Contra Costa County CaliforniaUnited States North AmericayesI239226239226 IBivalviaOstrealuridaTertiaryPlioceneB988Contra Costa County CaliforniaUnited States North AmericayesI239227239227 IBivalviaOstrealuridaTertiaryPlioceneB988Contra Costa County CaliforniaUnited States North AmericayesI239228239228 IBivalviaOstrealuridaTertiaryPlioceneB988Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI312620312620 IGastropodaScaphandercf. costatusHypotypeTertiaryPaleocene3156‐Contra Costa County CaliforniaUnited States North AmericayesI318960318960 IBivalviaPeriplomyatryonianaPlastolectotype CretaceousIP430Contra Costa County CaliforniaUnited States North AmericayesI324930324930 IBivalviaPenitelladurhamiParatypeTertiaryEoceneA7762Contra Costa County CaliforniaUnited States North AmericayesI324940324940 IBivalviaPenitelladurhamiParatypeTertiaryEoceneA7762Contra Costa County CaliforniaUnited States North AmericayesI324950324950 IBivalviaPenitelladurhamiParatypeTertiaryEoceneA7762Contra Costa County CaliforniaUnited States North AmericayesI324960324960 IBivalviaPenitelladurhamiParatypeTertiaryEoceneA7762Contra Costa County CaliforniaUnited States North AmericayesI324970324970 IBivalviaPenitelladurhamiParatypeTertiaryEoceneA7762Contra Costa County CaliforniaUnited States North AmericayesI555885555885 IBivalviaGlycymerissp.TertiaryPaleoceneA1435Contra Costa County CaliforniaUnited States North AmericayesI555890555890 IBivalviaGlycymerissp.TertiaryPaleocene3152‐Contra Costa County CaliforniaUnited States North AmericayesI555891555891 IBivalviaGlycymerissp.TertiaryPaleocene3159‐Contra Costa CountyCaliforniaUnited StatesNorth AmericayesI555893555893 IBivalviaGlycymerissp.TertiaryPaleocene1540‐Contra Costa County CaliforniaUnited States North AmericayesI555895555895 IBivalviaGlycymerissp.TertiaryPaleocene3159‐Contra Costa County CaliforniaUnited States North AmericayesI555896555896 IBivalviaGlycymerissp.TertiaryPaleocene3577‐Contra Costa County CaliforniaUnited States North AmericayesM135135 MPolythalamea Plectofrondicularia oregonensisFORAMINIFERA hypotypeTertiaryEoceneA6960Contra Costa County CaliforniaUnited States North AmericayesM70487048 MPolythalameaFORAMINIFERATertiaryPaleoceneA6662Contra Costa County CaliforniaUnited States North AmericayesM70807080 MTertiaryEoceneB410Contra Costa County CaliforniaUnited States North AmericayesM70817081 MPolythalameaFORAMINIFERATertiaryEoceneB414Contra Costa County CaliforniaUnited States North Americayes M70827082 MPolythalameaFORAMINIFERATertiaryEoceneB415Contra Costa County CaliforniaUnited States North AmericayesM70837083 MPolythalameaFORAMINIFERATertiaryEoceneB416Contra Costa County CaliforniaUnited States North AmericayesM70847084 MPolythalameaFORAMINIFERATertiaryEoceneB417Contra Costa County CaliforniaUnited States North AmericayesM70857085 MPolythalameaFORAMINIFERATertiaryEoceneB418Contra Costa County CaliforniaUnited States North AmericayesM70867086 MPolythalameaFORAMINIFERATertiaryEoceneB419Contra Costa County CaliforniaUnited States North AmericayesM70877087 MPolythalameaFORAMINIFERATertiaryEoceneB420Contra Costa County CaliforniaUnited States North AmericayesM70887088 MPolythalameaFORAMINIFERATertiaryEoceneB421Contra Costa County CaliforniaUnited States North AmericayesM70897089 MPolythalameaFORAMINIFERATertiaryEoceneB423Contra Costa County CaliforniaUnited States North AmericayesM70907090 MPolythalameaFORAMINIFERATertiaryEoceneB424Contra Costa County CaliforniaUnited States North AmericayesM70917091 MNo fauna recovered.TertiaryEoceneB425Contra Costa County CaliforniaUnited States North AmericayesM72637263 MPolythalameaFORAMINIFERATertiaryEoceneB403Contra Costa County CaliforniaUnited States North AmericayesM72647264 MPolythalameaFORAMINIFERATertiaryEoceneB404Contra Costa County CaliforniaUnited States North AmericayesM72657265 MPolythalameaFORAMINIFERATertiaryEoceneB405Contra Costa County CaliforniaUnited States North AmericayesM76707670 MPolythalameaFORAMINIFERATertiaryEoceneA1721Contra Costa County CaliforniaUnited States North AmericayesM76717671 MPolythalameaFORAMINIFERATertiaryEoceneA1721Contra Costa County CaliforniaUnited States North AmericayesM76727672 MPolythalameaFORAMINIFERATertiaryEoceneA1770Contra Costa County CaliforniaUnited States North AmericayesM76737673 MPolythalameaFORAMINIFERATertiaryEoceneA1770Contra Costa County CaliforniaUnited States North AmericayesM76747674 MPolythalameaFORAMINIFERATertiaryEoceneA1771Contra Costa County CaliforniaUnited States North AmericayesM76757675 MPolythalameaFORAMINIFERATertiaryEoceneA1771Contra Costa County CaliforniaUnited States North AmericayesM77167716 MPolythalameaFORAMINIFERATertiaryEoceneA3875Contra Costa County CaliforniaUnited States North AmericayesM77707770MPolythalameaFORAMINIFERATertiaryEoceneB412Contra Costa County CaliforniaUnited States North AmericayesM77717771 MPolythalameaFORAMINIFERATertiaryEoceneB427Contra Costa County CaliforniaUnited States North AmericayesM78887888 MPolythalameaFORAMINIFERATertiaryEoceneB467Contra Costa County CaliforniaUnited States North AmericayesM81728172 MPolythalameaFORAMINIFERATertiaryPaleoceneA1720Contra Costa County CaliforniaUnited States North AmericayesM81778177 MPolythalameaFORAMINIFERATertiaryPaleoceneA1753Contra Costa County CaliforniaUnited States North AmericayesM81788178 MPolythalameaFORAMINIFERATertiaryPaleoceneA1753Contra Costa County CaliforniaUnited States North AmericayesM81838183 MPolythalameaFORAMINIFERATertiaryEoceneA1758Contra Costa County CaliforniaUnited States North AmericayesM81848184 MPolythalameaFORAMINIFERATertiaryEoceneA1758Contra Costa County CaliforniaUnited States North AmericayesM81858185 MPolythalameaFORAMINIFERATertiaryPaleoceneA1765Contra Costa County CaliforniaUnited States North AmericayesM81868186 MPolythalameaFORAMINIFERATertiaryPaleoceneA1765Contra Costa County CaliforniaUnited States North AmericayesM81898189MPolythalameaFORAMINIFERATertiaryEoceneA1767Contra Costa County CaliforniaUnited States North AmericayesM81938193 MPolythalameaFORAMINIFERATertiaryEoceneA1767Contra Costa County CaliforniaUnited States North AmericayesM81948194 MPolythalameaFORAMINIFERATertiaryPaleoceneA1768Contra Costa County CaliforniaUnited States North AmericayesM81958195 MPolythalameaFORAMINIFERATertiaryPaleoceneA1835Contra Costa County CaliforniaUnited States North AmericayesM81968196 MPolythalameaFORAMINIFERATertiaryPaleoceneA1835Contra Costa County CaliforniaUnited States North AmericayesM81978197 MPolythalameaFORAMINIFERATertiaryEoceneA1841Contra Costa County CaliforniaUnited States North AmericayesM81988198 MPolythalameaFORAMINIFERATertiaryEoceneA1841Contra Costa County CaliforniaUnited States North AmericayesM83898389 MPolythalameaFORAMINIFERATertiaryEoceneB446Contra Costa County CaliforniaUnited States North AmericayesM83908390 MPolythalameaFORAMINIFERATertiaryEoceneB448Contra Costa County CaliforniaUnited States North AmericayesM83918391 MPolythalameaFORAMINIFERATertiaryEoceneB451Contra Costa County CaliforniaUnited States North AmericayesM83928392 MPolythalameaFORAMINIFERATertiaryEoceneB454Contra Costa CountyCaliforniaUnited States North AmericayesM83938393 MPolythalameaFORAMINIFERATertiaryEoceneB455Contra Costa County CaliforniaUnited States North AmericayesM83948394 MPolythalameaFORAMINIFERATertiaryEoceneB456Contra Costa County CaliforniaUnited States North AmericayesM83958395 MPolythalameaFORAMINIFERATertiaryEoceneB495Contra Costa County CaliforniaUnited States North AmericayesM83968396 MPolythalameaFORAMINIFERATertiaryEoceneB428Contra Costa County CaliforniaUnited States North AmericayesM83978397 MPolythalameaFORAMINIFERATertiaryEoceneB429Contra Costa County CaliforniaUnited States North AmericayesM83988398 MPolythalameaFORAMINIFERATertiaryEoceneB430Contra Costa County CaliforniaUnited States North AmericayesM83998399 MPolythalameaFORAMINIFERATertiaryEoceneB431Contra Costa County CaliforniaUnited States North AmericayesM84008400 MPolythalameaFORAMINIFERATertiaryEoceneB433Contra Costa County CaliforniaUnited States North AmericayesM84018401 MPolythalameaFORAMINIFERATertiaryEoceneB434Contra Costa County CaliforniaUnited States North AmericayesM84028402 MPolythalameaFORAMINIFERATertiaryEoceneB436Contra Costa CountyCaliforniaUnited StatesNorth AmericayesM84038403 MPolythalameaFORAMINIFERATertiaryEoceneB437Contra Costa County CaliforniaUnited States North AmericayesM84048404 MPolythalameaFORAMINIFERATertiaryEoceneB438Contra Costa County CaliforniaUnited States North AmericayesM84058405 MPolythalameaFORAMINIFERATertiaryEoceneB440Contra Costa County CaliforniaUnited States North AmericayesM84068406 MPolythalameaFORAMINIFERATertiaryEoceneB441Contra Costa County CaliforniaUnited States North AmericayesM84078407 MPolythalameaFORAMINIFERATertiaryEoceneB442Contra Costa County CaliforniaUnited States North AmericayesM84088408 MPolythalameaFORAMINIFERATertiaryEoceneB445Contra Costa County CaliforniaUnited States North AmericayesM90359035 MPolythalameaFORAMINIFERATertiaryEocene?A1722Contra Costa County CaliforniaUnited States North AmericayesM90369036 MPolythalameaFORAMINIFERATertiaryEocene?A1722Contra Costa County CaliforniaUnited States North AmericayesM90379037 MPolythalameaFORAMINIFERATertiaryEoceneB496Contra Costa County CaliforniaUnited States North AmericayesM1287012870 MTertiaryMioceneA1714Contra Costa CountyCaliforniaUnited StatesNorth AmericayesM2275922759 MTertiaryEoceneMF7499Contra Costa County CaliforniaUnited States North AmericayesM2276022760 MPolythalameaFORAMINIFERA. Sorted Assemblage.TertiaryEoceneMF7499Contra Costa County CaliforniaUnited States North AmericayesM2276122761 MPolythalameaFORAMINIFERA. Sorted Assemblage.TertiaryEoceneMF7499Contra Costa County CaliforniaUnited States North AmericayesM2276222762 MPolythalameaFORAMINIFERA. Sorted Assemblage.TertiaryEoceneMF7499Contra Costa County CaliforniaUnited States North AmericayesM2276322763 MPolythalameaFORAMINIFERA. Sorted Assemblage.TertiaryEoceneMF7499Contra Costa County CaliforniaUnited States North AmericayesM2276422764 MPolythalameaFORAMINIFERA. Sorted Assemblage.TertiaryEoceneMF7499Contra Costa County CaliforniaUnited States North AmericayesM2276522765 MPolythalameaFORAMINIFERA. Sorted Assemblage.TertiaryEoceneMF7499Contra Costa County CaliforniaUnited States North AmericayesM2276622766 MPolythalameaFORAMINIFERA. Sorted Assemblage.TertiaryEoceneMF7499Contra Costa County CaliforniaUnited States North AmericayesM2276722767 MPolythalameaFORAMINIFERA. Sorted Assemblage.TertiaryEoceneMF7499Contra Costa County CaliforniaUnited States North AmericayesM2276822768 MPolythalameaFORAMINIFERA. Sorted Assemblage.TertiaryEoceneMF7499Contra Costa County CaliforniaUnited States North AmericayesM2276922769 MPolythalameaFORAMINIFERA. Sorted Assemblage.TertiaryEoceneMF7499Contra Costa County CaliforniaUnited States North AmericayesM2277022770 MPolythalameaFORAMINIFERA. Sorted Assemblage.TertiaryEoceneMF7499Contra Costa County CaliforniaUnited States North AmericayesM2282722827 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF7524Contra Costa County CaliforniaUnited States North AmericayesM2282822828 MTertiaryEoceneMF7525Contra Costa County CaliforniaUnited States North AmericayesM2283422834 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF7529Contra Costa County CaliforniaUnited States North AmericayesM2283722837 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF7529Contra Costa County CaliforniaUnited States North AmericayesM2284022840 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF7529Contra Costa County CaliforniaUnited States North AmericayesM2284322843 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF7529Contra Costa County CaliforniaUnited States North AmericayesM2284422844 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF7529Contra Costa County CaliforniaUnited States North AmericayesM2290622906 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF7557Contra Costa County CaliforniaUnited States North AmericayesM2291822918 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF7564Contra Costa County CaliforniaUnited States North AmericayesM2295522955 MPolythalameaFORAMINIFERA. Sorted Assemblage.TertiaryPaleoceneMF7588Contra Costa County CaliforniaUnited States North AmericayesM2300923009 MPolythalameaFORAMINIFERA. Sorted Assemblage.TertiaryPaleoceneMF7620Contra Costa County CaliforniaUnited States North AmericayesM2301123011 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF7622Contra Costa County CaliforniaUnited States North AmericayesM2430924309 MPolythalameaFORAMINIFERA: sorted assemblageTertiaryEoceneMF8251Contra Costa County CaliforniaUnited States North AmericayesM4001540015 MPolythalamea TextulariamississippiensisFORAMINIFERA hypotypeTertiaryEoceneA6679Contra Costa County CaliforniaUnited States North AmericayesM4001740017 MPolythalamea TextulariamississippiensisFORAMINIFERA hypotypeTertiaryEoceneA6679Contra Costa County CaliforniaUnited States North AmericayesM4003240032 MPolythalamea DorothiapraelongaFORAMINIFERA. OD = Gaudryina praelonga Karrer.hypotypeTertiaryEoceneA6679Contra Costa County CaliforniaUnited States North AmericayesM4003940039 MPolythalamea SigmoilinaFORAMINIFERA hypotypeTertiaryPaleoceneA6662Contra Costa County CaliforniaUnited States North AmericayesM4004640046 MPolythalamea RobuluschehalisensisFORAMINIFERA. OD = Robuloides chehalisensis Rau.hypotypeTertiaryEoceneA6679Contra Costa County CaliforniaUnited States North AmericayesM4005040050 MPolythalamea RobulusinornatusFORAMINIFERA. OD = Robulina inornata Orbigny.hypotypeTertiaryEoceneA6679Contra Costa County CaliforniaUnited States North AmericayesM4006840068 MPolythalamea LenticulinaFORAMINIFERA hypotypeTertiaryPaleoceneA6662Contra Costa County CaliforniaUnited States North AmericayesM4011040110 MPolythalamea LagenaamphorapaucicostaFORAMINIFERA hypotypeTertiaryPaleoceneA6662Contra Costa County CaliforniaUnited States North AmericayesM4012340123 MPolythalamea ElphidiumsmithiFORAMINIFERA hypotypeTertiaryPaleoceneA6662Contra Costa County CaliforniaUnited States North AmericayesM4012740127 MPolythalamea UvigerinaFORAMINIFERA. hypotypeTertiaryPaleoceneA6662Contra Costa County CaliforniaUnited States North AmericayesM4013440134 MPolythalamea NodogenerinaFORAMINIFERA. hypotypeTertiaryPaleoceneA6662Contra Costa County CaliforniaUnited States North AmericayesM4013640136 MPolythalamea BuliminellarobertsiFORAMINIFERA. OD = Bulimina robertsi Howe & Ellis.hypotypeTertiaryPaleoceneA6662Contra Costa County CaliforniaUnited States North AmericayesM4013840138 MPolythalamea BuliminapachecoensisFORAMINIFERA HolotypeTertiaryPaleoceneA6662Contra Costa County CaliforniaUnited States North America 0000 0000 0405 0928 yesM4014940149 MPolythalamea Loxostomum delicatulumFORAMINIFERA. OD = Bolivinoides decorata var. delicatula Cushman.hypotypeTertiaryPaleoceneA6662Contra Costa County CaliforniaUnited States North AmericayesM4016140161 MPolythalamea Angulogerina wilcoxensisFORAMINIFERA. OD = Pseduouvigerina wilcoxensis Cushman & Ponton.hypotypeTertiaryPaleoceneA6662Contra Costa County CaliforniaUnited States North AmericayesM4016440164 MPolythalamea Ellipsonodosaria nuttalligracillimaFORAMINIFERA hypotypeTertiaryEoceneA6679Contra Costa County CaliforniaUnited States North AmericayesM4016540165 MPolythalamea Ellipsonodosaria nuttalligracillimaFORAMINIFERA hypotypeTertiaryEoceneA6679Contra Costa County CaliforniaUnited States North AmericayesM4016740167 MPolythalamea ValvulineriamartinezensisFORAMINIFERA holotypeTertiaryPaleoceneA6662Contra Costa County CaliforniaUnited States North America 0000 0000 0405 1942 yesM4016840168 MPolythalamea ValvulineriamartinezensisFORAMINIFERA paratypeTertiaryPaleoceneA6662Contra Costa County CaliforniaUnited States North AmericayesM4016940169 MPolythalamea ValvulineriamartinezensisFORAMINIFERA hypotypeTertiaryPaleoceneA6662Contra Costa County CaliforniaUnited States North AmericayesM4017240172 MPolythalamea GyroidinaFORAMINIFERA hypotypeTertiaryEoceneA6679Contra Costa County CaliforniaUnited States North AmericayesM4019140191 MPolythalamea AlabaminawilcoxensisFORAMINIFERA hyptoypeTertiaryPaleoceneA6662Contra Costa County CaliforniaUnited States North AmericayesM4019540195 MPolythalamea PulleniasalisburyiFORAMINIFERA. hyptoypeTertiaryPaleoceneA6662Contra Costa County CaliforniaUnited States North Americayes M4021240212 MPolythalamea AnomalinareginaFORAMINIFERA hypotypeTertiaryPaleoceneA6662Contra Costa County CaliforniaUnited States North AmericayesM4021640216 MPolythalamea AnomalinaFORAMINIFERA. hypotypeTertiaryPaleoceneA6662Contra Costa County CaliforniaUnited States North AmericayesM4021940219 MPolythalamea CibicideseponidiformisFORAMINIFERA hypotypeTertiaryPaleoceneA6662Contra Costa County CaliforniaUnited States North AmericayesM4023640236 MPolythalamea CibicidoidescoalingensisminorFORAMINIFERA. holotypeTertiaryPaleoceneA6662Contra Costa County CaliforniaUnited States North America 0000 0000 0405 0963 yesM4024440244 MPolythalamea UvigerinaFORAMINIFERA. hypotypeTertiaryPaleoceneA6662Contra Costa County CaliforniaUnited States North AmericayesV136590136590 VChondrichthyes SquatinaTertiaryMioceneB5549Contra Costa County CaliforniaUnited States North Americayes CALIFORNIA ENVIRONMENTAL QUALITY ACT NOTICE OF DETERMINATION Authority cited: Sections 21083, Public Resources Code. Reference Section 21000-21174, Public Resources Code. G:\engsvc\ENVIRO\Board Orders\2015\03-10-15\CEQA-BO-West Antioch Creek-WO#8399\FINAL_ NOD_3-3-15.doc Form updated December 2014 To: Office of Planning and Research From: Contra Costa County P.O. Box 3044, Room 113 Dept. of Conservation & Development Sacramento, CA 95812-3044 30 Muir Road Martinez, CA 94553 County Clerk County of: Contra Costa State Clearinghouse Number: SCH# 2014042078 Project Title: West Antioch Creek Channel Improvements - CP#15-05 Project Applicant: Contra Costa County Public Works Department Project Location: Antioch in Contra Costa County Project Description: The City of Antioch published an Initial Study/Mitigated Negative Declaration for the West Antioch Creek Channel Improvements project in April 2014 which was approved and adopted by the Antioch City Council in September 2014. The project is intended to reduce flooding in the project area by increasing the capacity of West Antioch Creek channel between West 10th Street and West 8th Street and re-establishing the 25-year flood protection capacity of the channel downstream of West 8th Street to the Burlington Northern Santa Fe railroad trestle. Construction of the project will require purchase and use of privately-owned parcels which will require fee title transactions and permanent and temporary easements to be transferred to the City of Antioch (067-010- 003, 074-030-003, 074-040-025, 036, 047; 074-130-050, 056, 057, 058, 060, 061, 064, 076, 081). The Contra Costa County Board of Supervisors, as the governing body of the Contra Costa County Public Works Department, intends to adopt the City of Antioch’s previously adopted Final Initial Study/Mitigated Negative Declaration in order to support the property transactions. The City of Antioch has analyzed all impacts of the project and will obtain all necessary regulatory permits and environmental clearances prior to pro ject implementation. General Plan Conformance is not necessary from the City of Antioch. The project was approved on: September 23, 2014 1. The project [ will will not] have a significant effect on the environment. 2. An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA. A Negative Declaration was prepared for this project pursuant to the provisions of CEQA. 3. Mitigation measures [ were were not] made a condition of the approval of the project. 4. A mitigation reporting or monitoring plan [ was was not] adopted for this project. 5. A statement of Overriding Considerations [ was was not] adopted for this project. 6. Findings [ were were not] made pursuant to the provisions of CEQA. Notice of Determination for SCH# 2014042078 was sent to Office of Planning and Research.* This is to certify that the final EIR with comments and responses and record of project approval, or the Negative Declaration, is available to the General Public at: Contra Costa County Public Works Department 255 Glacier Drive, Martinez, CA 94553 Signature (Contra Costa County): Title: Date: Date Received for filing at OPR: AFFIDAVIT OF FILING AND POSTING I declare that on ____________________________________________ I received and posted this notice as required by California Public Resources Code Section 21152(c). Said notice will remain posted for 30 days from the filing date. Signature Title: Applicant: Department of Fish and Game Fees Due Public Works Department EIR - $3,069.75 Total Due: $ 75.00 255 Glacier Drive Neg. Dec. - $2,210.00 Total Paid $ Martinez, CA 94553 DeMinimis Findings - $0 Attn: _Claudia Gemberling_____ County Clerk - $50 Receipt #: Environmental Services Division Conservation & Development - $25 Phone: (925) 313-2192 *Notice of Determination may be sent by fax to (916) 323-3018, if followed up with a duplicate mailed copy.