HomeMy WebLinkAboutMINUTES - 09092003 - C.38 TO: BOARD OF SUPERVISORS, AS GOVERNING BOARD OF CONTRA COSTA COUNTY
FLOOD CONTROL AND WATER CONSERVATION DISTRICT
FROM: MAUR.ICE M. SHINY, CHIEF ENGINEER
DATE: September 9, 2003
SUBJECT: DETERMINE that the Wildcat Creek Sedimentation Basin Desilt project is a California
Environmental Quality Act(CEQA)Class 4g Categorical Exemption;APPROVE and AUTHORIZE
the Chief Engineer, Flood Control and Water Conservation District, to advertise the project,
Richmond area. [CDD-CP# 03-33] (District I)Project No. 7527-6139704-03
Speci#"ic Request(s)or Recommendation(s)&Bac ground&Justification
I. RECOMMENDED ACTION:
DETERMINE that the Wildcat Creep Sedimentation Basin Desilt Project is a California Environmental
Quality Act(CEQA) Class 4g Categorical Exemption, and
DIRECT the Director of Community Development to file a Notice of Exemption with the County Clerk,and
AUTHORIZE the Chief Engineer to arrange for payment of a $25 fee to Community Development for
processing, and a$25 fee to the County Clerk for filing the Notice of Exemption, and
APPROVE the project, and AUTHORIZE the Chief Engineer to advertise the project.
_ ._..r,
Continued on Attachment: X SIGNATURE: ;` ._ € , — ✓ � #_t:M.
s r
—RECOMMENDATION OF COUNTY ADMINISTRATOIt.–.._
RECOMMENDATION OF BOARD COMMITTEE
7—X' EROVE OTHER
ACTION OE BOAXD N SE=A Eg 09 y 20WROVED AS RECOMMENDED X&_OTHER
r'
VOTE OF SUPERVISORS
XX UNANIMOUS(ABSENT `1 }
AYES: NOES: I hereby certify that this is a true and correct
ABSENT:_ ABSTAIN: copy of an action taken and entered on the
minutes of the Board of Supervisors on the date
LS:sr Shown.
G:\GrpData\EngSvc\Enviro\BO\2003\(09-09-03)CEQA-W idcat Crk-BO.doc
Orig.Div: Public Works(Environmental)
Contact: Cece Sellgren(3-2252)
cc: E.Kuevor,Administrator ATTESTED:_SEPTEMBER 09, 2003
Auditor-Controller JOHN SWEETEN, Clerk of the Board of
K.Pinna,Community Development Supervisors and County Accounting p Administrator
ivi,De la O,Maintenance
C.Najera,Environmental
L.See,Environmental
T.Torres,Environmental BY �. 'Deputy
SUBJECT: DETERMINE that the Wildcat Creek Sedimentation Basin Desilt project is a California
Environmental Quality Act(CEQA)Class 4g Categorical Exemption;APPROVE and AUTHORIZE
the Chief Engineer, Flood Control and Fater Conservation District, to advertise the project,
Richmond area. [CI: D-CP#03-33] (District I)Project No. 7527-6D9704«03
DATE: September 9, 2003
PAGE: 2
II. FISCAL IMPACT:
The estimated project cost is $100,000, funded by Flood Control Zane 7 (100%).
III. REASONS FOR RECOMMENDATION/BACKGROUND:
The project consists of the removal of approximately 10,000 cubic yards of silt from the Wildcat Creek
Sedimentation Basin. The basin was designed and constructed by the U.S. Carps of Engineers specifically
for the purpose of sediment collection and removal. The accumulated sediment is reducing the hydraulic
capacity of Wildcat Creek at this location,threatening to cause flooding at a nearby school,homes,and local
industries
The project has been determined to be in compliance with the General Plan and is exempt from CEQA. The
project consists of excavating material from a sediment basin, which will be disposed of at an approved
location. The prof ect will consist of minor alteration in the condition of land,water,and vegetation that sloes
not involve removal of any mature scenic trees.
IV. CONSEQUENCES OF NEGATIVE ACTION.
Delay in approving the projects may result in a delay of construction and may jeopardize funding.
CONTRA PUBLIC WORKS DEPARTMENT
COSTA INITIAL STUDY
COUNTY OF ENVIRONMENTAL SIGNIFICANCE
PROJECT #7527.6D9704-03
CP# 03-33
PROJECT NAME: Wildcat Creek Sediment Basin 2003 Silt Removal
PREPARED BY: Lauren See DATE: 6/25/03
APPROVED BY: DATE:
RECOMMENDATIONS:
(X) Categorical Exemption (Class 4g) ( } Negative Declaration
( ) Environmental Impact Report Required ( ) Conditional Negative Declaration
The project will not have a significant effect on the environment. The
recommendation is based on the fallowing: The project consists of excavating material
from a sediment basin which will be disposed of at an approved location. The project will
consist of minor alteration in the condition of land, water, and vegetation which does not
involve the removal of any mature scenic trees.
What changes to the project would mitigate the identified impacts N/A
USGS Quad Sheet Richmond Base Map Sheet# J-4 Parcel # N/A
GENERAL CONSIDERATIONS:
1. Location; The project is located on Wildcat Creek, upstream of Giaramita Street in
the west county area of Richmond (Figures 1-3).
2. Project Description: The project consists of the removal of approximately 10,000
cubic yards of silt from the Wildcat Creek Sedimentation Basin. The Wildcat Creek
Basin was designed and constructed by the U.S. Army Corps of Engineers
specifically for the purpose of sediment collection and removal. Based on the
amount of accumulated sediment, desilting of the basin is necessary since
additional sediment will not be trapped, potentially leading to large quantities of
sediment passing through the basin and being deposited on the downstream
floodplain of Wildcat Creek this winter. In addition, the accumulated sediment is
reducing the hydraulic capacity of Wildcat Creek at this location, threatening to
cause flooding at a nearby school, homes, and local industries.
In order to minimize impacts to surrounding environmentally sensitive areas, the
project has been designed including several Best Management Practices (BMPs).
These BMPs consist of fencing off several adjacent areas including the mature
riparian corridor that defines the southern Border of the project, the channel
downstream of the water treatment system that defines the western boundary of the
project, and the riparian area north of the basin (with the exception of the
established access ramps). Additional BMPs include installation of a sediment trap
downstream of the worksite to ensure that no sediment is transported downstream
as a result of the project, daily trash removal from the construction site to ensure the
area is maintained in a clean condition, and fueling and maintenance of equipment
at designated areas outside of the basin area. Deal Property transactions may be
necessary in support of this project.
In order to minimize impact to adjacent riparian vegetation, access to the basin will
be accomplished via the two existing access ramps and an additional temporary
ramp from the eastern gate. Based on the requirements of the U.B. Army Corps of
Engineers Operations and Maintenance Manual prepared for the project, the basin
has been desilted frequently(most recently in 2002)to maintain the design capacity.
Therefore, a mature wetland/riparian system has not developed within the basin
itself. Vegetation to be removed within the basin as a result of the desilt consists of
immature riparian and wetland vegetation dominated by cattails and willow
seedlings.
The sediment removed from the channel will be disposed of at the existing stockpile
at the District property north of the basin. Following completion of the desilt, all
disturbed slopes will be seeded with a mix including native grasses prior to winter
rains.
There is a known population of rainbow trout in Wildcat Creek; however, the
population does not exhibit anadromous behavior(i.e.,the population out-migrates
but does not return to Wildcat Creek) and, therefore, cannot be classified as the
listed species of steelhead (pers. comm. P. Alexander, East Bay Regional Parks
District Fisheries Biologist, 6118/03). In addition, according to Mr. Alexander, no
other listed anadromous fish species occur within Wildcat Creek.
3. does it appear that any feature of the project will generate significant public
concern?
[ ] yes [X] no [ ] maybe (Nature of concern):
4. Will the project require approval or permits by other than a County agency?
[X] yes [ ] no Agency Name(s) California Department of Fish and Game,
Regional Water Quality Control Board, US Army Corps of Engineers, State Water
Resources Control Board
5. Is the project within the Sphere of Influence of any city? Yes, the City of
Richmond
G:\GrpData\EngSvc\enviro\2003projectsNCEQA\CatExlWildcatDestit
CALIFORNIA ENVIRONMENTAL QUALITY ACT
Not*ce cif Exemption
Contra Costa County Community Development Department
651 Pine Street, 4th Floor-North Wing, McBrien Administration Building
Martinez, CA 94553-0095
Telephone: (925)313-2252 Contact Person: Lauren See-Public Works Dept.
Project Description,Common Dame(if any)and Location:Wildcat Creek Basin 2003 Silt Removal, County File#CP 03-
33. Project Description: The project consists of the removal of approximately 10,000 cubic yards of silt from the Wildcat
Creek Sedimentation Basin. The Wildcat Creek Basin was designed and constructed by the U.S.Army Corps of Engineers
specifically for the purpose of sediment collection and removal. Based on the amount of accumulated sediment,desilting
of the basin is necessary since additional sediment will not be trapped, potentially leading to large quantities of sediment
passing through the basin and being deposited on the downstream floodplain and Wildcat Creek Marsh this winter. The
accumulated sediment is reducing the hydraulic capacity of Wildcat Creek at this location, and is threatening to cause
flooding at a nearby school, homes, and local industries. The project has been designed including several Best
Management Practices (BMPs). These BMPs consist of fencing off several adjacent areas including the mature riparian
corridor that defines the southern border of the project, installation of a straw bale sediment trap downstream of the
worksite to ensure that no sediment is transported downstream,daily trash removal from the construction site,and fueling
and maintenance of equipment at designated areas outside of the basin area. Access to the basin will be accomplished via
the two existing access ramps. Vegetation to be removed within the basin as a result of the desilt consists of immature
riparian and wetland vegetation. The sediment removed from the channel will be disposed of either by off-haul to an
acceptable upland disposal site chosen by the contractor or on the existing stockpile at the District property north of the
basin. All disturbed slopes will be seeded with a mix including native grasses prior to winter rains. Real Property
transactions may be necessary in support of this project. Project location: The project is located upstream of Giaramita
Street in the west County area of Richmond.
This project is exempt from CIQA as a:
Ministerial Project(Sec. 95260) _ Other Statutory Exemption, Section
Declared Emergency(Sec. 15269(x)) General Rule of Applicability{Section 15061(b)(3)
_ Emergency Project(Sec. 15269(b)or(c))
X Categorical Exemption, Class 4et
For the following reason(s): The project consists of excavating material from a sediment basin which will be disposed of
at an approved location. The project will consist of miner alteration in the condition of land,water, and vegetation which
does not involve the removal of any mature scenic trees.
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 Cade Section 21152(c). Said notice will remain pasted for 30
days from the filing date.
Signature Title
Applicant:
County Public Works Department
255 Glacier Drive
Martinez, CA 94553 County Clerk Fee$50 Due
G:\GrpData\EngSvclenviro\2003Projects\WildcatDesilt\NOE
CALIFORNIA ENVIRONMENTAL QUALITY ACT
Notice of Exemption
Contra Costa County Community Development Department
651 Pine Street, 4th Floor-North Wing,McBrien Administration Building
Martinez, CA 94553-0095
Telephone: (925)313-2252 Contact Person: Lauren See- Public Works Dept.
Project Description, Common Name(if any)and vocation:Wildcat Creek Basin 2003 Silt Removal,County File#CP 03-
33. Project description: The project consists of the removal of approximately 10,000 cubic yards of silt from the Wildcat
Creek Sedimentation Basin. The Wildcat Creek Basin was designed and constructed by the U.S.Army Corps of Engineers
specifically for the purpose of sediment collection and removal. Based on the amount of accumulated sediment,desilting
of the basin is necessary since additional sediment will not be trapped, potentially leading to large quantities of sediment
passing through the basin and being deposited on the downstream floodplain and Wildcat Creek Marsh this winter. The
accumulated sediment is reducing the hydraulic capacity of Wildcat Creek at this location, and is threatening to cause
flooding at a nearby school, homes, and local industries. The project has been designed including several Best
Management Practices (BMPs). These BMPs consist of fencing off several adjacent areas including the mature riparian
corridor that defines the southern boarder of the project, installation of a straw bale sediment trap downstream of the
worksite to ensure that no sediment is transported downstream,daily trash removal from the construction site,and fueling
and maintenance of equipment at designated areas outside of the basin area. Access to the basin will be accomplished via
the two existing access ramps. Vegetation to be removed within the basin as a result of the desilt consists of immature
riparian and wetland vegetation. The sediment removed from the channel will be disposed of either by off-haul to an
acceptable uplanddisposal site chosen by the contractor or on the existing stockpile at the District property north of the
basin. All disturbed slopes will be seeded with a mix including native grasses prior to winter rains. Real Property
transactions may be necessary in support of this project. Project location: The project is located upstream of Giaramita
Street in the west County area of Richmond.
This project is exempt from CEQA as a:
Ministerial Project(Sec. 45268) _ Other Statutory Exemption, Section
Declared Emergency(Sec. 15269(x)) General Mule of Applicability(Section 15061(b)(3)
Emergency Project(Sec. 15269(b)or(c))
X Categorical Exemption, Class 4g
For the fallowing reasons):The project consists of excavating material from a sediment basin which will be disposed of
at an approved location. The project will consist of minor alteration in the condition of land, water, and vegetation which
does not involve the removal of any mature scenic trees.
Date: By:
Community Development Department Representative
AFFIDAVIT OF FILING AND POSTING
I declare that can 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.
i Signature Title
Applicant.
County Public Works Department
255 Glacier Drive
Martinez, CA 04553 County Clerk Fee$50 Due
G:\GrpData\EngSvc\enviro\2003Projects\W ildcatDesiit\NOE
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