HomeMy WebLinkAboutMINUTES - 12182001 - C.23 I
TO: BOARD OF SUPERVISORS
= ' r __l` Contra
FROM: DENNIS M. BARRY, AICP Costa
05
COMMUNITY DEVELOPMENT DIRECTOR ,; County
DATE: DECEMBER 18, 2001
SUBJECT: DRAINAGE AREA 48B IMPROVEMENTS
SPECIFIC REQUEST(S) OR RECOMMENDATIONS(S) & BACKGROUND AND JUSTIFICATION
RECOMMENDATIONS
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 Mitigated Negative Declaration and Mitigation Monitoring Program in
compliance with the California Environmental Quality Act, (the custodian of which is the
Contra Costa County Redevelopment Agency, located.at 651 Pine Street, 5th Floor-North
Wing, Martinez) and
CONTINUED ON ATTACHMENT: X YES SIGNATURE I
RECOMMENDATION OF COUNTY ADMINISTRATOR/EXECUTIVE DIRECTOR RECOM-
MENDATIONOF OARD/AGENCY COMMITTEE -----APPROVE OTHER
f
SIGNATURES
ACTION OF BO R /REDEVEOPMENT AGENCY ON 49Z APPROVED AS
RECOMMEND /X OTHER
VOTE OF SUPERVISORS/COMMISSIONERS I HEREBY CERTIFY THAT THIS IS A TRUE AND
,_UNANIMOUS(ABSENT ) CORRECT COPY OF AN ACTION TAKEN AND
AYES: NOES: ENTERED ON THE MINUTES OF THE BOARD OF
ABSENT: ABSTAIN: SUPERVISORS/REDEVELOPMENT AGENCY ON THE
DATE SHOWN.
Source: Maureen Toms 335-1250 ATTESTED D(�G»-�,dL7' XP--Z/
cc: Community Development Department PHIL BATCHELOR, CLERK OF THE BOARD OF
Redevelopment Agency SUPERVISORS/AGENCY SECRETARY
County Administrator
Flood Control District
Public Works Department BY A�A� , DEPUTY
County Counsel —�
Auditor-Controller
BOARD OF SUPERVISORS/REDEVELOPMENT AGENCY
DECEMBER 18, 2001
DRAINAGE AREA 48B IMPROVEMENTS
DIRECT the Director of Community Development to file a Notice of Determination with the
County Clerk.
DIRECT the Redevelopment Agency to arrange for payment of the $1,250 Department of
Fish and Game Fee and $25.00 handling fee to the County Clerk.
DIRECT the Public Works Director to begin right of way acquisition and to prepare contract
plans and specifications for construction.
AUTHORIZE the Public Works Director to ADVERTISE the project at his discretion, and
FISCAL IMPACT
The estimates cost of the project is $200,000. No General Funds would be utilized.
Redevelopment Funds will be used for the improvements. Drainage Area 48B funds will be
used to reimburse the Redevelopment Agency when the funds become available.
BACKGROUND/REASONS FOR RECOMMENDATIONS
A major activity in Bay Point is to improve and upgrade the existing infrastructure. The
Redevelopment Agency is working with the Flood Control District on improvements to Line
A of Drainage Area 48B. The improvements involve the replacement of the existing 60-inch
culvert with an approximately 84-inch culvert under Port Chicago Highway to alleviate the
flooding problems upstream of the culvert.
The project has been determined to be in compliance with the General Plan. A Mitigated
Negative Declaration of environmental significance pertaining to this project was published
on November 19, 2001. The end of the public review period is December 14, 2001. To
date, no comments on the Mitigated Negative Declaration have been received
IV. CONSEQUENCES OF NEGATIVE ACTION:
Delay in approving the project will result in a delay of right-of-way acquisition, design and
construction.
Environmental Checklist Form
1. Project Title: Drainage Area 48B Improvement Project — Culvert
Replacement
2. Lead Agency Name and Address: Contra Costa County Community Development Department
651 Pine Street,4`h Floor,North Wing
Martinez, CA 94553
3. Contact Person and Phone Number: Maureen Toms- (925)335-1250
4. Project Location: Port Chicago Highway at Skipper Lane in the Bay Point
Redevelopment Project Area
5. Project Sponsor's Name and Address: Contra Costa County Redevelopment Agency
651 Pine Street,4'h Floor,North Wing
Martinez, CA 94553
6. General'Plan Designation: Commercial and Heavy Industrial
7. Zoning: Neighborhood Business and Heavy Industrial
8. Description of Project: The applicant is proposing to replace the entire pipe of
Line A, in drainage area 48B, with up to an 84-inch pipe.
The replacement of the pipeline will be done in phases.
9. Surrounding Land Uses and Setting: Commercial and Heavy Industrial uses run along the
drainage pipe in the vicinity of Skipper Lane and Port Chicago
Highway in Bay Point,in the east Contra Costa County area.
10. Other public agencies whose
approval is required: The Department of Fish and Game, Army Corp of
Engineers,and the Regional Water Quality Control Board.
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.
Land Use and Planning _ Transportation/ _ Public Services .
Population& Housing Circulation _ Utilities & Service
Geological Problems _ Biological Resources Systems
Water _ Energy & Mineral _ Aesthetics
Air Quality Resources _ Cultural Resources
Mandatory Findings of _ Hazards _ Recreation
Significance _ Noise ✓ No new Potentially
Significant
Impacts Identified .
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DETERMINATION
On the basis of this initial evaluation:
X I find that the proposed project COULD NOT have a significant effect on the environment, and a
NEGATIVE DECLARATION will be prepared.
I 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 MITIGATED NEGATIVE DECLARATION will be prepared.
I find that the proposed project MAY have a significant effect on the environment, and an
ENVIRONMENTAL IMPACT REPORT is required.
I find that the proposed project MAY have a significant effect(s) 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,if the effect is a"potentially significant impact"or"potentially significant unless mitigated." An
ENVIRONMENTAL IMPACT REPORT is required,but it must analyze only the effects that remain to
be addressed.
I 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 all potentially significant effects(a)have been analyzed
adequately in an earlier EIR pursuant to applicable standards and (b) have been avoided or mitigated
pursuant to that earlier EIR, including revisions or mitigation measures that are imposed upon the
proposed project.
December 27, 2000
Signature Date
Lesley Xavier CCC Community Development Department
Printed Name For
Signature
Maureen Toms
Approved
PROJECT DESCRIPTION &LOCATION
The Flood Control District proposes to replace approximately 660 feet of existing pipe in Line A,drainage area
48B. The existing 66-inch CMP pipe, in the vicinity of Skipper Lane and Port Chicago Highway,runs west to
east behind a local shopping center,then turns 90 degrees and runs down Port Chicago Highway,to the north,
then turns again to the east and crosses Port Chicago Highway,where it discharges into an existing earth channel.
An internal field recon of the pipe, done by the Contra Costa County Public Works Department, showed
extensive corrosion in the invert of the pipe throughout, with the upper portion being the worst area. The
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replacement pipe will be up to an 84-inch RCP pipe. The pipe will be constructed deeper than the 60-inch line to
avoid utility conflicts and will terminate at the existing natural channel at a lower flow line.This will necessitate
grading of the existing natural channel to a point approximately 500 feet downstream where the flow line will
daylight. One small tree will have to be removed at the outlet of the new pipe.
SOURCES
In the process of preparing the Checklist and conducting the evaluation, the following references (which are
available for review at the Contra Costa County Community Development Department, 651 Pine Street 5th
Floor-North Wing, Martinez)were consulted:
1. Contra Costa Resource Mapping System- Quad Sheet Panels Brentwood, CA
2. The(Reconsolidated)County General Plan(July 1996)and EIR on the General Plan (January 1991)
3. General Plan and Zoning Maps
4. Drainage Area 48B Initial Study
5. Project Description
EVALUATION OF ENVIRONMENTAL IMPACTS:
Potentially
significant
Impact,
Potentially Unless Less than
significant Mitigation Significant
Impact Incorporated Impact No Impact
I. AESTHETICS. Would the proposal:
a. Have a substantial adverse effect on a scenic X
vista?(Source 2,4,5)
b. Substantially damage scenic resources, _ X
including, but not limited to, trees, rock
outcroppings, and historic buildings within a
state scenic highway?(Source 2,4,5)
C. Substantially degrade the existing visual X
character or quality of the site and its
surroundings? (Source 2,4,5)
d. Create a new source of substantial light or X
glare, which would adversely affect day or
nighttime views in the area?(Source 2,4,5)
SUMMARY:
One small tree will need to be removed at the outlet of the new pipe. Removing the tree will have a less than
significant impact on the site; therefore the project will not substantially affect the aesthetics of the area.
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Potentially
significant
Impact,
Potentially Unless Less than
significant Mitigation Significant
Impact Incorporated Impact No Impact
II. AGRICULTURAL RESOURCES. In determining
whether impacts to agricultural resources are
significant environmental effects, lead agencies
may refer to the California Agricultural Land
Evaluation and Site Assessment Model(1997)
prepared by the California Dept. Of Conservation
as an optional model to use in assessing impacts
on agricultural and farmland. Would the project:
a. Convert Prime Farmland,Unique Farmland or X
Farmland or 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?
(Source 3,5)
b. Conflict with existing zoning for agricultural _ X
use, or a Williamson Act contract? (Source
3,5)
C. Involve other changes in the existing X
environment, which, due to their location or
nature, could result in conversion of
Farmland, to non-agricultural use? (Source
3,5)
SUMMARY:
The project site is located within an urban area,therefore no impacts to agricultural resources will occur.
Potentially
significant
Impact,
Potentially Unless Less than
significant Mitigation Significant
Impact Incorporated Impact No Impact
I.II. AIR QUALITY. Where available,the significance
criteria established by the applicable air quality
management or air pollution control district may be
relief upon to make the following determinations.
Would the project:
a. Conflict with or obstruct implementation of _ X
the applicable air quality plan (Source 2,5)
b. Violate any air quality standard or contribute _ X
to an existing or projected air quality
violation? (Source 2,5)
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C. Result in a cumulatively considerable net X
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)? (Source 2,5)
d. Expose sensitive receptors to substantial X
pollutant concentrations?(Source 2,5)
e. Create objectionable odors affecting a _ X
substantial number of people?(Source 4,5)
SUMMARY:
Short-term emissions and objectionable odors may be generated during construction activities,but they are
minor and temporary. To minimize this impact, the Conditions of Approval for the project include a
requirement for the use of properly tuned and muffled equipment and the elimination of any unnecessary
idling of machines when not in use. Therefore,the project will have no significant impact on air quality.
Potentially
significant
Impact,
Potentially Unless Less than
significant Mitigation Significant
Impact Incorporated Impact No Impact
IV. BIO_L_O_ GICAL_RESOURCES,. Would the project:
a. 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, polices, or regulations, or by
the California Department of Fish and Game
or U.S. Fish and Wildlife Service? (Source
1,2,4,5)
b. 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 Game or
US Fish and Wildlife Service? (Source
1,2,4,5)
C. 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?(Source 1,2,4,5)
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d. 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? (Source 1,2,4,5)
e. Conflict with any local policies or ordinances X
protecting biological resources, such as tree
preservation policy or ordinance? (Source
1,2,4,5)
SUMMARY:
Potentially
significant
Impact,
Potentially Unless Less than
significant Mitigation Significant
Impact Incorporated Impact No Impact
V. CULTURAL RESOURCES. Would the project:
a. Cause a substantial adverse change in the X
significance of a historical resource as defined
in §15064.5? (Source 1,4,5)
b. Cause a substantial adverse change in the _ X
significance of an archaeological resource
pursuant to §15064.5?(Source 1,4,5)
C. Directly or indirectly destroy a unique X
paleontological resource or site or unique
geologic feature?(Source 1,4,5)
d. Disturb any human remains, including those X
interred outside of formal cemeteries?
(Source 1,4,5)
SUMMARY:
The site is not identified in the Contra Costa County General Plan's Archaeological Sensitivity map as being a
known archaeological site,or as having a likelihood of such.However,in the event that something should be
uncovered the following Condition of Approval will be included in order to minimize the impact: In the
event that cultural resources should be uncovered during the course of construction all earth moving activities
in the area of the find will cease until a qualified archeological consultant examines the findings,asses their
significance and offers a proposal for any procedures deemed appropriate to further investigate and/or
mitigate adverse impacts to those cultural resources which have been encountered.
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Potentially
significant
Impact,
Potentially Unless Less than
significant Mitigation Significant
_ Impact Incorporated Impact No Impact
VI. GEOLOGY AND SOILS. Would the project?
a. Expose people or structures to potential X
substantial adverse effects, including the risk
of loss, injury, or death involving:
1. 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.
(Source 1,2,4,5)
2. Strong seismic ground shaking?
(Source 1,2,4,5)
3. Seismic-related ground failure,
including liquefaction? (Source
1,2,4,5)
4. Landslides?(Source 1,2,4,5)
b. Result in substantial soil erosion or the loss of _ X
topsoil?(Source 1,2,4,5)
C. Be located on a geologic unit or soil that is X
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? (Source
1,2,4,5)
d. Be located on expansive soil, as defined in X
Table 18-1-B of the Uniform Building Code
(1994), creating substantial risks to life or
property?(Source 1,2,4,5)
e. Have soils incapable of adequately supporting X
the use of septic tanks or alternative waste
disposal systems where sewers are not
available for the disposal of wastewater?
(Source 1,2,4,5)
SUMMARY:
The project area has a soil designation of AdC Antioch Loam. Runoff is slow to medium. The hazard or
erosion is slight to moderate_w_ here the soil is tilled and exposed. Some vegetative cover will be removed
during installation of the pipe which will.expose soils to wind and water erosion. The impact is minor and
temporary.Adherence to standard dust control practices include,but are not limited to,general watering of
graded areas,use of chemical stabilizers and hydro-seeding,will mitigate this impact.Dust control practices
shall be incorporated into construction contracts;
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Potentially
significant
Impact,
Potentially Unless Less than
significant Mitigation Significant
Impact Incorporated Impact No Impact
VII. HAZARDS AND HAZARDOUS MATERIALS.
Would the project:
a. Create a significant hazard to the public or the X
environment through the routine transport,
use, or disposal of hazardous materials?
(Source 5)
b. Create a significant hazard to the public or the _ X
environment through reasonably foreseeable
upset and accident conditions involving the
release of hazardous materials into the
environment?(Source 5)
C. Emit hazardous emissions or handle X
hazardous or acutely hazardous materials,
substances, or waste within one-quarter mile
of an existing or proposed school?(Source 5)
d. Be located on a site which is included on a list X
of hazardous materials sites compiled
pursuant to Government code Section
65862.5 and, as a result, would it create a
significant hazard to the public or the
environment? (Source 5)
e. For a project located within an airport land _ X
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. (Source 2,5)
f. For a project within the vicinity of a private X
airstrip,would the project result in a safety
hazard for people residing or working in the
project area? (Source 2,5)
g. Impair implementation of or physically X
interfere with an adopted emergency response
plan or emergency evacuation plan? (Source
2,5)
h. Expose people or structures to a significant X
risk of loss, injury or death involving wild
land fires, including where wild lands are
adjacent to urbanized areas or where
residences are intermixed with wild lands?
(Source 2,5)
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SUMMARY:
The project has the potential to release hazardous substances, such as petroleum spills,during construction.
These potential impacts are minimized to a less than significant level with standard safety practices (i.e.
installing sufficient signs warning about construction and detours, marking of underground lines before
trenching, etc.).
Potentially
significant
Impact,
Potentially Unless Less than
significant Mitigation Significant
Impact Incorporated Impact No Impact
VIII. HYDROLOGY AND WATER QUALITY.Would
the project:
a. Violate any water quality standards or waste X
discharge requirements? (Source 1,2,4,5)
b. Substantially deplete groundwater supplies or _ X
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)? (Source 1,2,4,5)
C. Substantially alter the existing drainage X
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?
(Source 1,2,4,5)
d. Substantially alter the existing drainage X
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,which
would result in flooding on- or off-site?
(Source 1,2,4,5)
e. Create or contribute runoff water, which X
would exceed the capacity of existing or
planned storm water drainage systems or
provide substantial additional sources of
polluted runoff?(Source 2,3,8,9)
f. Otherwise substantially degrade water X
quality? (Source 2,3,8,9)
g. Place housing within a 100-year flood hazard X
area as mapped on a federal Flood Hazard
Boundary or Flood Insurance Rate Map or
other flood hazard delineation map? (Source
2,3,8,9)
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h. Place within a 100-year flood hazard area X
structures, which would impede or redirect
flood flows? (Source 2,3,8,9)
i. Expose people or structures to a significant X
risk of loss, injury or death involving
flooding, including flooding as a result of the
failure of a levee or dam? (Source 2,3,8,9)
j. Inundation by seiche, tsunami, or mudflow? X
.(Source 2,3,8,9)
SUMMARY:
The proposed replacement of the drainage system 4813, Line A, will help eliminate localized flooding and
ponding by collecting the surface flows and conveying down the improved pipe.The project will not reduce
the water available to the public since a public water source is not affected.
Installation of the pipe shall occur during periods of low or no flow to avoid water quality impacts.If water is
present,the construction area shall be dewatered by pimping water through a diversion pipe to be discharged
downstream in a non-erosive manner.
Potentially
significant
Impact,
Potentially Unless Less than
significant Mitigation Significant
Impact Incorporated Impact No Impact
IX. LAND USE AND PLANNING. Would the project:
a. Physically divide an established community? X
(Source 2,3,5)
b. Conflict with any applicable land use plan, _ X
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? (Source
2,3,5)
C. Conflict with any applicable habitat X
conservation plan or natural community
conservation plan? (Source 2,3,5)
SUMMARY:
The site has a General Plan designation of Commercial (C)and Heavy Industrial (HI). The project will not
result in the alteration of the present or planned land use of the area as noted in the County's General Plan.
The area is already urbanized. The installation of pipe will correct existing localized flooding.
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Potentially
significant
Impact,
Unless Less than
Potentially Mitigation Significant
significant Incorporated Impact No Impact
Impact
X. MINERAL RESOURCES. Would the project:
a. Result in the loss of availability of a known X
mineral resource that would be of value to the
region and the residents of the state?(Source
1,2,5)
b. Result in the loss of availability of a locally- _ X
important mineral resource recovery site
delineated on a local general plan, specific
plan or other land use plan? (Source 1,2,5)
SUMMARY:
Due to the nature of the project and the site description, the proposed project will not result in impacts to
mineral resources.
Potentially
significant
Impact,
Potentially Unless Less than
significant Mitigation Significant
Impact Incorporated Impact No Impact
XI. NOISE. Would the project:
a. Exposure of persons to or generation of noise X
levels in excess of standards established in the
local general plan or noise ordinance, or
applicable standards of other agencies?
(Source 2,5)
b. Exposure of persons to or generation of _ X
excessive ground borne vibration or ground
borne noise levels?(Source 2,5)
C. A substantial permanent increase in ambient X
noise levels in the project vicinity above
levels existing without the project? (Source
2,5)
d. A substantial temporary or periodic increase X
in ambient noise levels in the project vicinity
above levels existing without the project?
(Source 2,5)
e. For a project located within an airport land X
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?
(Source 2,5)
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f. For a project within the vicinity of a private X
airstrip, would the project expose people
residing or working in the project area to
excessive noise levels?(Source 2,5)
SUMMARY:
The proposed project will result in an increase in noise level during construction. However, this is a
temporary impact. Limiting work hours between 7:30 am and 5:00 pm, Monday through Friday, unless
modified by the Resident Engineer,will reduce construction noise levels and shall be incorporated as a part of
the construction contract. Once the drainage system is installed it will not generate noise.
Potentially
significant
Impact,
Potentially Unless Less than
significant Mitigation Significant
Impact Incorporated Impact No Impact
XII. POPULATION AND HOUSING. Would the
project:
a. Induce substantial population growth in an X
area, either directly (for example, by
proposing new homes and businesses) or
directly (for example, through extension of
roads or other infrastructure)?
(Source 2,5)
b. Displace substantial numbers of existing _ X
housing, necessitating the construction of
replacement housing elsewhere?
(Source 2,5)
C. Displace substantial numbers of people _ X
necessitating the construction of replacement
housing elsewhere? (Source 2,5)
SUMMARY:
Due to the nature of the proposal, there will not be an alteration in the location, distribution, density, or
growth rate of the human population in the area,nor will it affect existing housing or create a demand for
additional housing.
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Potentially
significant
Impact,
Potentially Unless Less than
significant Mitigation Significant
Impact Incorporated Impact No Impact
XIII. PUBLIC SERVICES. Would the project:
a. Would the project result in substantial adverse X
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: (Source 2,4,5)
1. Fire Protection?
2. Police Protection?
3. Schools?
4. Parks?
5. California Cities Water District
6. Delta Diablo Sanitary District
SUMMARY:
The installation of drainage pipes does not increase the need for fire or police protection, schools,parks,or
other governmental services. Therefore,there is no impact on public services.
Potentially
significant
I mpact,
Potentially Unless Less than
significant Mitigation Significant
Impact Incorporated Impact No Impact
XiV. RECREATION.
a. Would the project increase the use of existing X
neighborhood and regional parks or other
recreational facilities such that substantial
physical deterioration of the facility would
occur or be accelerated? (Source 2,3,5)
b. Does the project include recreational facilities _ X
or require the construction or expansion of
recreational facilities, which might have an
adverse physical effect on the environment?
(Source 2,3,5)
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SUMMARY:
The demand for parks will not increase as a result of the proposed project. Therefore,there is no impact on
parklands.
Potentially
significant
Impact,
Potentially Unless Less than
significant Mitigation Significant
Impact Incorporated Impact No Impact
XIV. TRANSPORTATION/TRAFFIC.
Would the project:
a. Cause an increase in traffic, which is X
substantial in relation to the existing traffic
load and capacity of the street system (i.e.,
result in a substantial increase in either the
number of vehicle trips, the volume to
capacity ratio on roads, or congestion at
intersections)?(Source 2,3,4,5)
b. Exceed,either individually or cumulatively, a _ X
level of service standard established by the
county congestion management agency for
designated roads or highways? (Source
2,3,4,5)
C. Result in a change in air traffic patterns, _ X
including either an increase in traffic levels or
a change in location that results in substantial
safety risks?(Source 2,3,4,5)
d. Substantially increase hazards due to a design _ X
feature (e.g., sharp curves or dangerous
intersections)or incompatible uses(e.g.,farm
equipment)? (Source 2,3,4,5)
e. Result in inadequate emergency access? _ X
f. Result in inadequate parking capacity? _ X
g. Conflict with adopted policies, plans, or _ X
programs supporting alternative transportation
(e.g., bus turnouts, bicycle racks)? (Source
2,3,4,5)
SUMMARY:
The installation of a drainage system will not generate additional traffic;alter circulation patterns or impact
existing transportation systems,except during construction.Therefore there will be no significant impact on
transportation and traffic.
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Potentially
significant
Impact,
Unless Less than
Potentially Mitigation Significant
significant Incorporated Impact No Impact
Impact
XVI. UTILITIES AND SERVICE SYSTEMS.
Would the project:
a. Exceed wastewater treatment requirements of X
the applicable Regional Water Quality
Control Board? (Source 2,4,5)
b. Require or result in the construction of new _ X
water or wastewater treatment facilities or
expansion of existing facilities, the
construction or which could cause significant
environmental effects?(Source 2,4,5)
C. Require or result in the construction of new _ X
storm water drainage facilities or expansion of
existing facilities, the construction of which
could cause significant environmental effects?
(Source 2,4,5)
d. Have sufficient water supplies available to _ X
serve the project from existing entitlement
and resources, or are new or expanded
entitlement needed?(Source 2,4,5)
e. Result in a determination by the wastewater _ X
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?(Source 2,4,5)
f. Be served by a landfill with sufficient _ X
permitted capacity to accommodate the
project's solid waste disposal needs?(Source
2,4,5)
g. Comply with federal, state and local statutes _ X
and regulations related to solid waste?
(Source 2,4,5)
SUMMARY
Improvements to the existing storm drainage system will have no effect on wastewater facilities.
W:\Personal\Planning Applications\App.In Progress\Drainage Area 48B.is.doc
16
Potentially
significant
Impact,
Potentially Unless Less than
significant Mitigation Significant
Impact Incorporated Impact No Impact
XVI MANDATORY FINDINGS OF SIGNIFICANCE.
1.
a. Does the project have the potential to degrade X
the quality of the environment, substantially
reduce the habitat of a fish and 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?
(Source 1,2,3,4,5)
b. Does the project have impacts that are _ X
individually limited, but cumulatively
considerable? ("Cumulatively considerable"
means that the incremental effects of 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)?
(Source 1,2,3,4,5)
C. Does the project have environmental effects, _ X
which will cause substantial adverse effects
on human beings,either directly or indirectly?
(Source 1,2,3,4,5)
SUMMARY:
Due to the nature of the project and the area in which it is proposed,the project does not have the potential to
achieve short-term goals, to the disadvantage of long-term goals. In addition, the project does not have
impacts that are individually limited,but cumulatively considerable.
W:\Personal\Planning Applications\App.In Progress\Drainage Area 48B.is.doc
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EXHIBIT "A"
MITIGATION MONITORING PROGRAM
COUNTY FILE #CP01-64
The Mitigation Monitoring Program has been prepared for the Drainage Area 48B
Improvement Project in accordance with the California Environmental Quality
Act, requiring the establishment of mitigation monitoring or reporting programs
for projects approved by a public agency.
1. Impact IV-A: Construction activities could negatively impact the raptor nest in
the vicinity of the project.
Mitigation 1V-A: The California Department of Fish and Game (CDFG) should
be contacted to determine appropriate measures for protection of the nest. For
planning purposes, it is recommended that construction be scheduled outside the
nesting season, which is generally from March through July, although great
horned owls (Bubo virginianus) may begin earlier and fledge young sooner than
other species. Implementation of this mitigation measure will reduce impacts to
an insignificant level.
Implementing Condition: Plans and Specifications
Method and Timing of Monitoring: Construction activities in the area will not
occur during the nesting season (March through July)
Responsible Department/Agency: Redevelopment Staff of Community
Development Department and Public Works Department Staff
2. Impact IV-B: Construction activities could compact potential nesting sites for
burrowing owl.
Mitigation IV-B: Flag burrows and ensure that they are avoided during
construction and schedule construction outside of breeding season generally from
March through July. Implementation of this mitigation measure will reduce
impacts to an insignificant level.
Implementing Condition: Plans and Specifications
Method and Timing of Monitoring: Construction activities in the area will not
occur during the nesting season (March through July). Prior to construction the
burrows shall be flagged and avoided.
Responsible Department/Agency: Redevelopment Staff of Community
Development Department and Public Works Department Staff
3. Impact IV-C: Construction within the existing channel could impact the potential
marginal western pond turtle (Clemmys marmorata) habitat in addition to
negatively impacting potential habitat for loggerhead shrike (Lanius ludovicianus)
and California horned lark (Eremophila alpestris actia).
Mitigation IV-C: Pre-construction surveys for other species should include a
search for pond turtles. Both bird species could be avoided by scheduling
construction outside the nesting season, from March through July.
Implementation of this mitigation measure will reduce impacts to an insignificant
level.
Implementing Condition: Plans and Specifications
Method and Timing of Monitoring: Construction activities in the area will not
occur during the nesting season (March through July). Prior to construction, pre-
construction surveys will be conducted. In addition, burrows will be flagged and
avoided.
Responsible Department/A encX: Redevelopment Staff of Community
Development Department and Public Works Department Staff will coordinate
with a biologist.
4. Impact IV-D: Widening or realigning the channel would result in impacts to
existing habitat and species in the channel.
Mitigation IV-D: To reduce negative impacts to wildlife that may use the
channel, the channel should be slowly de-watered prior to construction to allow
certain species to move themselves downstream or to seek cover in other areas in
the vicinity. The de-watering process should be initiated in the afternoon and take
place over a period of no less than three days. The hydrology should be
maintained downstream of the project site. If possible native vegetation should be
salvaged from the channel for restoration along the widened channel. After the
channel is widened or realigned, it should be hydroseed seeded with native
grasses and flowers prior to October 15. Once the slopes are seeded, the area
should not be disturbed, other than work on the dams. A temporary dam should
be constructed using sandbags at the downstream end of the channel at the same
time that water is diverted and allowed to flow through the widened or realigned
channel. CDFG should be contacted for concurrence as part of the permitting
process. During construction, temporary fencing should be installed around the
entire work area to minimize disturbance to adjacent habitat. Implementation of
this mitigation measure will reduce impacts to an insignificant level.
Implementing Condition: Plans and Specifications
Method and Timing of Monitoring: Staff to work with contractor in the
coordination of this mitigation prior d duringdewatering activites
Responsible Department/Agency: Redevelopment Staff of Community
Development Department and Public Works Department Staff