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HomeMy WebLinkAboutMINUTES - 03011994 - 1.6 r0: BOARD OF SUPERVISORS '1 FROM: J. MICHAEL WALFORD, PUBLIC WORKS DIRECTOR DAT : March 1, 1994 SUBJECT: Approve Cypress Road/Jersey Island Road Left Turn Lane Project, Bethel Island Area Project No. 0662-6134112-93, CP # 93-47. Specific Request(s) or Recommendations) & Background & Justification I. RECOMMENDED ACTION: APPROVE Project, and FIND, on the basis of the initial study and all comments received, that there is no substantial evidence that the project-will have a significant effect on the environment, ADOPT the Negative Declaration in compliance with the California Environmental Quality Act,and DIRECT the Public Works Director to begin right of way acquisition and to prepare contract plans and specifications for construction. DIRECT the Public Works Director to arrange for payment of the $25.00 handling fee to the County Clerk. DIRECT the Public Works Director to arrange for the $1,250.00 Fish and Game filing fee to be transferred to the County Clerk. II. FINANCIAL IMPACT: The estimated project cost is $135,000, funded by Federal Hazard Elimination Safety (HES) Program (85%) and road funds (15%). Continued on Attachment: X SIGNATURE: _ RECOMMENDATION OF COUNTY ADMINISTRATOR _ RECOMMENDATION OF BOARD COMMITTEE APPROVE OTHER SIGNATURE(S): ACTION OF BOARD ON APPROVED AS RECOMMENDED OTHER VOTE OF SUPERVISORS UNANIMOUS (ABSENT ) AYES: NOES: ABSENT: ABSTAIN: BM:jlg c\BO:bol.t2 i hereby certify that this is a true and correct copy of an action taken and entered on the minutes of the Board of Sutfiethown. Orig. Div: Public Works (Design Division) ATTESTED' Contact: Brian Morrow, (313-2236) PHIL BATCHELOR,Clerk Of the Boar cc: County Administrator of SUPO Y1S Mow Ad1nW$tMW Attn: E. Kuevor ' Auditor-Controller By 00puty PW Accounting Construction Community Development Road Engineering-H. Ballenger Approve Cypress Road/Jersey Island Road Left Turn Lane Project, Bethel Island Area l' March 1, 1994 Page 2 III. REASONS FOR RECOMMENDATION/BACKGROUND: The project includes widening Cypress Road symmetrically at Jersey Island Road to provide a left turn lane, along with the installation of a flasher. It is needed to increase capacity by providing a left turn lane at the intersection of Cypress Road and Jersey Island Road. The project has been determined to be in compliance with the General Plan. A Negative Declaration of environmental significance pertaining to this project was published December 27, 1993 with no protest, and the Board has considered the negative declaration together with all comments received during the public review period. IV. CONSEQUENCES OF NEGATIVE ACTION: Delay in approving the project will result in a delay of design and construction and may jeopardize funding. CALIFORNIA ENVIRONMENTAL QUALITY ACT l0 NOTICE OF DETERMINATION CONTRA COSTA COUNTY COMMUNITY DEVELOPMENT DEPARTMENT 851 PINE STREET 4TH FLOOR NORTH WING MARTINEZ, CALIFORNIA 94553-0095 Telephone: (510) 313-2296 Contact Person: Vickie Germany, Public Works Dept. Project Description, Common Name (if any)and Location: CYPRESS ROAD/JERSEY ISLAND ROAD LEFT-TURN LANE, County File #CP 93-47: The project involves the widening of Cypress Road at the intersection of Jersey Island Road and the installation of a flashing beacon at the intersection. Cypress Road will be widened near the intersection of Jersey Island Road in order to install a left turn lane on eastbound Cypress Road. Utility poles and lines will be relocated. The purpose of the project is to improve safety conditions at the intersections. The project's feature include the following: (1) Cypress Road will be widened approximately six feet on each side in the vicinity of the left tum lane, and then taper back to the original edge of pavement; (2) Drainage ditches along Cypress Road will be reconfigured; and (3)The 36-inch reinforced concrete pipe(RCP)on the south side of Cypress, which pipes water from the slough under Cypress road, will be extended approximately seven feet. Project Location: The project is located at the intersection of Cypress Road and Jersey Island Road in the Oakley area. The project limits at the Cypress Road/Jersey Island Road intersection extend along Cypress Road approxi-mately 1,000 feet west and 500 feet east of the intersection. The project limits along Jersey Island Road extend approximately 100' north of the intersection. The project was approved on Pursuant to the provisions of the California Environmental Quality Act: QAn Environmental Impact Report was prepared and certified. QThe Project was encompassed by an Environmental Impact Report previously prepared for QA Negative Declaration was issued indicating that preparation of an Environmental Impact Report was not required. Copies of the record of project approval and the Negative Declaration or the final EIR may be examined at the office of the Contra Costa County Community Development Department. © The Project will not have a significant environmental effect. Q The Project will have a significant environmental effect. Mitigation measures were made a condition of approval of the project. A statement of overriding considerations was adopted. Findings were adopted pursuant to Section 15091 of the State CEQA Guidelines. Date: By: Community Development Department Representative 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 & Game Fees Due: County Public Works Department EIR - $850 Total Due: $ 255 Glacier Drive ./ Neg. Dec. - $1,250 Total Paid: $ Martinez, CA 94553 DeMinimis Findings - $0 Attn: Janet Frattini ,/ County Clerk - $25 Receipt #: CONTRA COSTA COUNTY CEQA ENVIRONMENTAL CHECKLIST FORM I. Background Title of Proposal: Cypress Road Improvements at Jersey Island Road Name of Proponent: Contra Costa County Public Works Department Address and Phone Number of Proponent: 255 Glacier Drive Martinez, CA 94553-4897 (510) 313-2000 Date of Checklist Submitted: December 15, 1993 Project Location: At the intersection of Cypress Road and Jersey Island Road in the Oakley area. II. Environmental Impacts (Explanations of all significant, (S), answers are required on attached sheets.) *S *1 1. Earth. Will the proposal result in: a. Unstable earth conditions or changes in geologic substructures? — ✓ b. Disruptions, displacements, compaction or overcovering of the soil? ✓ C. Change in topography or ground surface relief features? — ✓ d. The destruction, covering or modification of any unique geologic or physical features? _ ✓ e. Any increase in wind or water erosion of soils, either on or off the site? ✓ f. Changes in deposition or erosion of beach sands, or changes in siltation, deposition or erosion which may modify the channel of a river or stream or the bed of the ocean or any bay, inlet or lake? ✓ g. Exposure of people or property to geologic hazards such as earthquakes, landslides, mudslides, ground failure, or similar hazards? ✓ 2. Air. Will the proposal result in: a. Substantial air emissions or deterioration of ambient air quality? _ ✓ 2 *S *I b. The creation of objectionable odors? _ ✓ C. Alternation of air movement, moisture, or temperature, or any change in climate, either locally or regionally? _ ✓ 3. Water. Will the proposal result in: a. Changes in currents, or the course of direction of water movements, in either marine or fresh waters? ✓ b. Changes in absorption rates, drainage patterns, or the rate and amount of surface runoff? ✓ C. Alterations to the course or flow of flood waters? ✓ d. Change in the amount of surface water in any water body? _ ✓ e. Discharge into surface waters, or in any alteration of sL'rface water quality, including but not limited to temperature, dissolved oxygen or turbidity? _ ✓ f. Alteration of the direction or rate of flow of ground waters? _ ✓ g. Change in the quantity of ground waters, either through direct additions or withdrawals, or through interception of an aquifer by cuts or excavations? ✓ h. Substantial reduction in the amount of water otherwise available for public water supplies? ✓ i. Exposure of people or property to water related hazards such as flooding or tidal waves? _ ✓ 4. Plant Life. Will the proposal result in: a. Change in the diversity of species, or number of any species of plants (including trees, shrubs, grass, crops, and aquatic plants)? _ ✓ b. Reduction of the numbers of any unique, rare or endangered species of plants? _ ✓ C. Introduction of new species of plants into an area, or in a barrier to the normal replenishment of existing species? _ •/ d. Reduction in acreage of any agricultural crop? _ ✓ *Please Note: "S" is for significant; "I" is for insignificant. 3 *S *I 5. Animal Life. Will the proposal result in: a. Change in the diversity of species, or numbers of any species of animals (birds, land animals including reptiles, fish and shellfish, benthic organisms or insects)? _ ✓ b. Reduction of the numbers of any unique, rare or endangered species of animals? _. ✓ C. Introduction of new species of animals into an area, or result in a barrier to the migration or movement of animals? ✓ d. Deterioration to existing fish or wildlife habitat? _ ✓ 6. Noise. Will the proposal result in: a. Increases in existing noise levels? ✓ b. Exposure of people to severe noise levels? _ ✓ 7. Light and Glare. Will the proposal produce new light or glare? _ ✓ 8. Land Use. Will the proposal result in a substantial alteration of the present or planned land use of an area? ✓ 9. Natural Resources. Will the proposal result in: a. Increase in the rate of use of any natural resources? _ _ ✓ 10. Risk of Upset. Will the proposal involve: a. A risk of an explosion or the release of hazardous substances (including, but not limited to, oil, pesticides, chemicals or radiation) in the event of an accident or upset conditions? ✓ b. Possible interference with an emergency response plan or an emergency evacuation plan? — ✓ 11. Population. Will the proposal alter the location, distribution, density, or growth rate of the human population of an area? — ✓ *Please Note: SIS" is for significant; "I" is for insignificant. 4 *S *I 12. Housing. Will the proposal affect existing housing, or create a demand for additional housing? ✓ 13. Transportation/Circulation. Will the proposal result in: a. Generation of substantial additional vehicular movement? ✓ b. Effects on existing parking facilities, or demand for new parking? _ ✓ C. Substantial impact upon existing transportation systems? _ ✓ d. Alterations to present patterns of circulation or movement of people and/or goods? _ ✓ e. Alterations to waterborne, rail or air traffic? _ ✓ f. Increase in traffic hazards to motor vehicles, bicyclists or pedestrians? _ 14. Public Services. Will the proposal have an effect upon, or result in a need for new or altered governmental services in any of the following areas: a. Fire protection? _ ✓ b. Police protection? _ ✓ C. Schools? ✓ d. Parks or other recreational facilities? ✓ e. Maintenance of public facilities, including roads? ✓ f. Other governmental services? _ ✓ 15. Energy. Will the proposal result in: a. Use of substantial amounts of fuel or energy? _ ✓ b. Substantial increase in demand upon existing sources of energy, or require the development of new sources of energy? _ ✓ *Please Note: "s" is for significant; "I" is for insignificant. 5 *S *I 16. Utilities. Will the proposal result in a need for new systems, or substantial alterations to utilities? ._ ✓ 17. Human Health. Will the proposal result in: a. Creation of any health hazard or potential health hazard (excluding mental health)? ._ ✓ b. Exposure of people to potential health hazards? _ ✓ 18. Aesthetics. Will the proposal result in the obstruction of any scenic vista or view open to the public, or will the proposal result in the creation of an aesthetically offensive site open to public view? — ✓ 19. Recreation. Will the proposal result in an impact upon the quality or quantity of existing recreational opportunities? ✓ 20. Cultural Resources. a. Will the proposal result in the alteration of the destruction of a prehistoric or historic archaeological site? _ ✓ b. Will the proposal result in adverse physical or aesthetic effects to a prehistoric or historic building, structure, or object? ✓, C. Does the proposal have the potential to cause a physical change which would affect unique ethnic cultural values? — ✓ d. Will the proposal restrict existing religious or sacred uses within the potential impact area? _ ✓ 21. Mandatory Findings of Significance. 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? _ ✓ *Please Note: "S" is for significant; "I" is for insignificant. 6 *S *I b. Does the project have the potential to achieve short-term, to the disadvantage of long-term, environmental goals? (A short-term impact on the environment is one which occurs in a relatively brief, definitive period of time while long-term impacts will endure well into the future.) _ ✓ C. Does the project have impacts which are individually limited, but cumulatively considerable? (A project may impact on two or more separate resources where the impact on each resource is relatively. small, but where the effect of the total of those impacts on the environment is significant.) _ ✓ d. Does the project have environmental effects which will cause substantial adverse effects on human beings, either directly or indirectly? _ ✓ 111. Discussion of Environmental Evaluation. (see attachment) IV. 'Determination On the basis of this Checklist and Environmental Evaluation: find that the proposed project COULD NOT have a significant effect on the environment, and a NEGATIVE DECLARATION will be prepared. 1 find that although the proposed project could have a significant effect on the environment, there will not be a significant effect in this case because the mitigation measures described on an attached sheet have been added to the project. A NEGATIVE DECLARATION WILL BE PREPARED. 1 find the proposed project MAY have a significant effect on the environment, and an ENVIRONMENTAL IMPACT REPORT is required. Date Sig ature eviewe By: MT:mat c:cypress�island.neg *Please Note: "S" is for significant; "I" is for insignificant. ENVIRONMENTAL EVALUATION Cypress Road/Jersey Island Road Left Tum Lane The project involves the widening of Cypress Road at the intersection of Jersey Island Road and the installation of a flashing beacon at the intersection. Cypress Road will be widened near the intersection of Jersey Island Road in order to install a left turn lane for eastbound traffic onto Jersey Island Road. The purpose of the project is to improve safety conditions at the intersections. In the process of preparing the Checklist and conducting the evaluation,the following resources were reviewed: 1. Contra Costa County Resource Mapping System 2. The County General Plan and EIR on the General Plan (1991) 3. USDA Soil Survey (1977) 4. Field inspections conducted on March 9 and April 29, 1993 5. Preliminary Historic Resources Inventory, Contra Costa County (1976) 6. Delta-Estuary, California's Inland Coast, A Public Trust Report (May 1991) 7. RAREFIND - California Natural Diversity Data Base (1993) 8. Northwest Information Center Records Search, Sonoma State University (October 14, 1993) 9. Cultural Resources Assessment, Basin Research Associates (December 9, 1993) 1. Earth (A, C - E, & G) According to the County General Plan, the project area is in an area of modern sediments of the delta lowland, which include soft water saturated muds, peat and loose sands. Sacramento clay is found on the east side of the Contra Costa Canal, at the intersection of Cypress Road and Jersey Island Road. Runoff is slow and there is no hazard of erosion. Marcuse clay is found on the west side of the Contra Costa Canal. This soil is poorly drained and subject to ponding and there is no hazard of erosion. The Antioch Fault, which is in the State's special studies zone, is located approximately six miles west of the project area. The Davis Fault and the Brentwood Fault, which are inferred active on the basis of scattered small magnitude earthquakes near traces of the faults, are located approximately 51/2 and 4 miles, respectively, west of Jersey Island Road. The project area has a high potential for liquefaction during an earthquake. The project will not result in unstable earth conditions or changes in geologic substructures. Grading of the project area will result in a minor change in topography and temporarily increase the exposure of soils to wind erosion; however, adherence to standard dust control and erosion control practices including, but not limited to, general watering of exposed areas and/or use of chemical stabilizers will avoid this impact. These measures shall be incorporated into the construction contract. No unique geologic features are present within the project limits. (B & F) Widening of Cypress Road approximately six feet on each side in the vicinity of the intersection with Jersey Island Road will necessitate the filling of minor portions (approximately 140 square feet) of a slough (see Figure 3), which is situated south of the Cypress Road/Jersey Island Road intersection. Water from the slough is piped via a 36" RCP under Cypress Road then continues in a northerly direction along the east side of Jersey Island Road. The RCP Environmental Evaluation Cypress Road/Jersey Island Road Left Turn Lane Page 2 culvert will be extended approximately seven feet, due to the road widening. If water is present in the slough, the construction area shall be dewatered by pumping water through a diversion pipe to be discharged downstream in a non-erosive manner. 2. Air (A & B) During construction of the project, machinery and vehicles will generate emissions and objectionable odors which will temporarily deteriorate air quality at the project site. To minimize this impact, contract specifications shall stipulate the use of properly tuned and muffled equipment. Air quality impacts will also be reduced by eliminating unnecessary idling of machines when not in use. These measures could reduce construction period emissions by up to 50 percent. Implementation of dust control practices noted in #1- EARTH (A, C - E, & G), will also minimize air quality impacts. (C) Improvements to the intersection will not cause the alteration of climate, air movement, moisture, or temperature. 3. Water (A - 1) Widening the roadway and installing a flashing beacon will .not result in changes in currents or the course of direction of water movements, including flood waters. The Contra Costa Canal, which moves public water supply from the Delta westward to the water customers, intersects the Cypress Road and Jersey Island Road intersection. The placement of the foundation for the flashers will avoid the canal siphon,which is situated under the Cypress Road and Jersey Island Road intersection. The project will not adversely affect the quantity or quality of this, or any other public water supply. The rate and amount of surface runoff will increase slightly as a result of widening the roadway, but is insignificant. Cypress Road, near the intersection with Jersey Island Road, may encroach upon wetland areas; a slough, a swale, drainage ditches, and a seasonally flooded area, when the roadway is widened (see Figure 3). Approximately 140 square feet of the slough, which was described in #1 EARTH (B & F), will be filled. This is a minor amount of fill and is not a significant impact, however, the loss of the slough area will be replaced at a 1:1 ratio by enlarging the slough at the northwest corner of the intersection. If water is present in the slough, the construction area shall be dewatered by pumping water through a diversion pipe to be discharged downstream in a non-erosive manner. Surface waters (in the form of wetlands) occur on the pasture lands adjacent to the Cypress Road-Jersey Island Road intersection, may be impacted as a result of the project. The new roadway width may encroach on approximately 400 square feet of a swale on the south side of Cypress Road, west of the Jersey Island Road intersection; approximately 9,600 square feet of a seasonally flooded area northwest of the intersection, approximately 9,880 square feet of the drainage ditches along Cypress Road. The drainage ditches will be reconfigured within the proposed right-of-way. Thus, less than a half an acre (approximately 19,880 square feet) of Environmental Evaluation Cypress Road/Jersey Island Road Left Turn Lane Page 3 wetlands may be affected, which represents a worst-case scenario. Final design of the project may reduce the amount of wetlands to be affected. Construction activities, such as relocating utility poles, may affect another 20,480 square feet (less than half an acre) of wetlands in the project area. Impacts created by construction activities are short-term and temporary, ending upon completion of the project. The use of construction, mats in the swale area and the seasonally flooded area will minimize any water quality impacts. Construction in the wetland areas shall occur during periods of low flow or no flow, to avoid water quality impacts. These potential impacts also represent a worst-case scenario, which will not significantly affect ground water recharge, direction or rate of flow; or absorption rates and drainage patterns of surface water. Also, final design of the project may further reduce these impacts. As mentioned in #10- RISK OF UPSET, standard construction safety practices shall be followed in order to reduce the possibility of a spill of gasoline. oil, or other pollutants which may have a significant impact on water quality. 4. Plant Life (A & D) A mix of introduced annual grasses and herbaceous wetland species are found in the pasture land adjacent to the project area. The pasture land is currently grazed by cattle which have degraded the habitat. In the area next to the slough, cattails (Typha sp.) and Baltic rush (Juncus balticus) are found. Under the worst case scenario, plant life may be impacted (see #3 WATER). The impact to pasture land is not significant given the size of the parcels, one in excess of 40 acres to the north and the other 40 acres to the south, west of the intersection. As discussed in #3 WATER, construction mats shall be used in wetland areas to minimize impacts to this habitat during construction. The drainage ditches, dry most of the year, contain patches of wetland vegetation. The ditches will be relocated and it is expected that wetland vegetation will reestablish itself. (B & C) The County Resource Mapping System, field reviews, and RAREFIND showed no unique, threatened, or endangered species of plants in the project area. The project will not result in the introduction of new species of plants into the area, nor will it create a barrier to the normal replenishment of existing species. 5. Animal Life (A- D) The project will not change the diversity or numbers of any species of animals, including any unique, rare or endangered species. There will be no introduction of new species of animals into an area, or barrier to the migration or movement of animals. In addition, there will be no removal of fish or wildlife habitat. The project will result in the encroachment upon wetland habitat, however this will not have a significant impact on animal life since there will be no net loss of wetland habitat (See #3 WATER and #4 PLANTS). Environmental Evaluation Cypress Road/Jersey Island Road Left Turn Lane Page 4 6. Noise (A & B) The County Resource Mapping System for the project area indicate a noise level of 60 dBA for 1990 and 65 dBA for the year 2005. The dominant source of noise in the project area comes from vehicles using Cypress Road. In general, construction activities produce noise levels of 86 dBA at 50 feet which is well below the threshold of pain of 120-140 dBA. The best management practices noted in #2 AIR'(A & B), will reduce construction noise levels and shall be incorporated as part of the construction contract. The project will not increase the capacity of the roadway. Widening Cypress Road approximately six feet on each side will result in the roadway being moved closer to the residences southeast of the intersection. This is not considered a significant impact because the residences near the Jersey Island intersection are set back several hundred feet from the source of noise (Caltrans Noise Fundamentals, 1989, 1991). Caltrans standard specifications regarding noise will apply during construction. .7. Light and Glare The installation of the flashers at the Cypress Road and Jersey Island Road intersection will produce new light and glare. This is not considered a significant impact because the residences near the Jersey Island intersection are set back several hundred feet form the source of the light. 8. Land Use The existing land uses within the project limits are rural residential and agricultural, including pasture land and dry farming. The Contra Costa Canal,which moves Delta water from the Rock Slough Intake, intersects the Cypress Road and Jersey Island Road intersection. The canal siphon is situated under'Cypress Road. Minor amounts of property from parcels adjacent to the roadway may need to be acquired for right-of-way. If acquisition of right-of-way is necessary it would not be a significant impact since the parcels west of the intersection are each 40 acres, the parcel northeast of the intersection is 266 acres, and the parcels southeast of the intersection include a 183 acre parcel and two parcels slightly under an acre. The right-of-way for the canal is also adjacent to the project area. The project will not result in a substantial alteration of the present or planned land use of the area. 9. Natural Resources During construction the project will involve the use of paving materials (i.e. asphalt) which will not significantly impact this resource. The use of oil and gasoline to operate the machinery for construction purposes is negligible and of a short term, temporary nature. Best management practices noted in #2 - AIR (A & B) minimizes the consumption of natural resources. _ Environmental Evaluation `Cypress Road/Jersey Island Road Left Turn Lane Page 5 10. Risk of Upset (A) The proposed project has the potential to release hazardous substances, such as petroleum,during construction. Standard construction safety practices shall be followed during construction to ensure that no accidental release of hazardous substances occurs or increase the potential for exposure to these substances is increased. The County Resource Mapping System for the project area identified a Shell gas line along Cypress Road, turning northward on Jersey Island Road, within the project limits. Shell Oil Company will be notified prior to any digging to identify the exact location of the lines, consequently avoiding any damage to the lines. (B) The project has the potential for interfering with an emergency response, but emergency response agencies in the area shall be notified prior to the onset of construction and of any detours. During construction, it will be necessary to control and shift traffic within the existing right-of-way. Standard specifications will require installing sufficient signs warning about the construction and work hours will be restricted as mentioned in #13 TRANSPORTATION/CIRCULATION (A - F). 11 & 12. Population and Housing The proposed project will not result in a change in population, displacement of people, or create a demand for additional housing (see #8 LAND USE). The project involves widening the roadway to provide for a left turn lane and installing a flashing beacon. 13. Transportation/Circulation (A- F) Cypress Road and Jersey Island Road together serve as the only access route to Bethel Island. Closing the road during construction is not feasible as this would eliminate the only access to Bethel Island. During construction, it may be necessary to close lanes and shift traffic within the right-of-way. Using traffic control, such as flagging and warning signs will minimize this inconvenience. Detouring traffic during construction is a short-term, temporary and minor impact, which will end upon completion of the project. No work which could interfere with commute traffic on Cypress Road shall be performed between the hours of 5:00 a.m. and 8:30 a.m., nor between 4:30 p.m. and 6:30 p.m weekdays. Two lanes of traffic can be maintained within the proposed right-of-way during the non-construction hours, for the duration of construction. The project will not result in the generation of additional vehicular traffic, except during construction. It will create a safe area for making left turns from Cypress Road. The project will not result in alterations to patterns of circulation or movement of people and/or goods, or waterborne, rail or air traffic. 14. Public Services (A- D, F) The road improvements will not increase the need for fire or police protection, schools, parks, or other governmental services. Environmental Evaluation Cypress Road/Jersey Island Road Left Turn Lane Page 6 (E) Maintenance of County roads, such as Cypress Road, Sellers Avenue, and Jersey Island Road, is performed by the County. 15. Energy (A & B) Minor amounts of non-renewable fuel resources will be consumed during construction, but this is a short-term,temporary impact. This impact is further reduced to an insignificant level by eliminating unnecessary idling of machines when not in use and by using properly tuned equipment as mentioned in #2 - AIR (A & B). Electricity will be required for the operation of flashing beacon but this does not represent a substantial increase in demand. 16. Utilities The project will result in the relocation of overhead power lines and poles located along Cypress Road. All relocation activities shall be performed by the appropriate utility agencies, The Shell Oil company will be notified prior to construction since their pipeline is located under Cypress Road and Jersey Island Road. See #10 RISK OF UPSET. 17. Human Health (A & B) The proposed project has the potential to release hazardous substances during construction. Potential health hazards due to accidental petroleum spills will be minimized by following best management practices noted in #10 - RISK OF UPSET (A). Air quality which could affect human health can be minimized by the measures noted in # 2 - AIR (A & B) and #6 - NOISE. The proposed.project will not create any known health hazard. 18. Aesthetics No significant negative long-term aesthetics will result from the project. The sight of construction equipment may be visually unattractive, but this is a minor, short-term and temporary impact, ending upon completion of construction. 19. Recreation As mentioned in # 13 - CIRCULATION AND TRANSPORTATION, Cypress Road and Jersey Island Road together serve as the only access to Bethel Island and Franks Tract State Recreation Area. The project itself will not affect these recreational areas, however, access to the areas may be delayed as a result of construction activities. Environmental Evaluation Cypress Road/Jersey Island Road Left Turn Lane Page 7 20. Cultural Resources (A- D) According to the General Plan, the project site is in an area that has moderate culturally sensitive areas. A cultural resources assessment was performed and no prehistoric of historic archaeological sites or local, state, federal historically or architecturally significant structures, landmarks or points of interest have been identified in or adjacent to the project. Per standard specifications, all personnel connected with the project will be informed of the possibility of finding archaeological resources (e.g., human remains, artifacts, bedrock, bone or shell). If during construction such resources are encountered, all work will be halted within a 30 yard radius of the findings and a qualified archaeologist retained to evaluate the significance of the find and suggest appropriate mitigation measures. Measures recommended by the archaeologist and approved by the Public Works Department will be implemented. 21. Mandatory Findings of Significance (A - D) Due to construction equipment, air quality will be temporarily degraded at the project site. However, no permanent long-term impacts will result (see #2 - AIR). There are no cumulative impacts associated with the project. No endangered species of plants or animals are within the project area. There will be no elimination of any animal, fish, or wildlife community (see #'s 4 & 5- PLANT AND ANIMAL LIFE). Should examples of the major periods of California history or prehistory be found, the measures described in #20 - CULTURAL RESOURCES shall be implemented. The project does not have the potential to achieve short-term, to the disadvantage of long-term, environmental goals. In addition, there will be no adverse environmental effects on human beings (see #17 - HUMAN HEALTH). :mat c:cypress�erseyi.su p