HomeMy WebLinkAboutMINUTES - 06252013 - C.02RECOMMENDATION(S):
APPROVE the Sycamore Creek Rock and Silt Removal Project and AUTHORIZE the Public Works Director, or
designee, to advertise the project [DCD-CP#13-11], Danville area. (District II) [Project No.: 7496-6D9563]
FIND the project is a California Environmental Quality Act (CEQA), Class 1(b) Categorical Exemption, pursuant to
Section 15301(b) of the CEQA Guidelines, and
DIRECT the Director of Conservation and Development to file a Notice of Exemption with the County Clerk, and
AUTHORIZE the Public Works Director to arrange for payment of a $25 fee to Conservation and Development for
processing, and a $50 fee to the County Clerk for filing the Notice of Exemption.
FISCAL IMPACT:
This project is funded 100% by CSA M-23 funds.
APPROVE OTHER
RECOMMENDATION OF CNTY ADMINISTRATOR RECOMMENDATION OF BOARD COMMITTEE
Action of Board On: 06/25/2013 APPROVED AS RECOMMENDED OTHER
Clerks Notes:
VOTE OF SUPERVISORS
AYE:Candace Andersen, District II
Supervisor
Karen Mitchoff, District IV
Supervisor
Federal D. Glover, District V
Supervisor
ABSENT:John Gioia, District I Supervisor
Mary N. Piepho, District III
Supervisor
Contact: Ave Brown, 925-313-2311
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: June 25, 2013
David Twa, County Administrator and Clerk of the Board of Supervisors
By: Stacey M. Boyd, Deputy
cc: A. Brown, PWD, Envirnmental, CAO, D. Twa, Auditor-Controller, P. Denison, PWD, Finance , L. Chavez, PWD, Environmental, M. Cordis, PWD, Mtc.
C. 2
To:Board of Supervisors
From:Julia R. Bueren, Public Works Director/Chief Engineer
Date:June 25, 2013
Contra
Costa
County
Subject:APPROVE the Sycamore Creek Rock and Silt Removal Project and CONSIDER related actions under CEQA,
Danville area.
BACKGROUND:
The purpose of the project is to remove riprap (rock) and silt that has accumulated in the creek bed of Sycamore
Creek and stabilize eroding areas of the creek bank slope with the collected riprap. The work is needed to maintain
adequate flow capacity within the creek and stop erosion. Work consists of removing riprap and accumulated silt
from the creek bed and stabilizing areas of erosion on the west side of the creek bank with the collected riprap. A
sidewall of the small drop structure in the creek that has come loose will be pushed back into place and secured.
Work will be completed using a low impact walking excavator and supplemental labor on foot. Access is
expected to be from the west side of the creek along a paved golf cart path, across a grassy area, and then down to
the creek via a gently sloped area. A few small oak tree saplings (less than 4-inches in diameter at breast height)
will likely be removed to access the creek, and some branches may need to be trimmed. If trimming is necessary,
branches will be cut cleanly. Construction is expected to occur during the dry season between June 1 and October
15. There may be flows in the creek, therefore, dewatering may be necessary to ensure water quality which could
require operating pumps overnight. However, low volume or muffled pumps will be used to reduce potential for
noise disruption. Work is anticipated to be completed in five days. Standard BMPs such as locating stockpiles and
fueling and maintaining equipment outside of the streamzone, and maintaining a clean worksite will be employed.
Environmentally Sensitive Area (ESA) fencing will be installed to clearly define the project limits and impact
area. No impact beyond the ESA fencing will be allowed. Avoidance and Minimization Measures will be
implemented to minimize potential for impacts to water quality and wildlife and will be consistent with the
Programmatic Agreement between the USFWS and the USACE to minimize potential impacts to California
red-legged frogs. Avoidance and Minimization Measures will address potential water quality impacts and
species-specific measures and include, but are not limited to, dewatering the creek to prevent turbid water from
traveling downstream, pre-construction surveys, and having a biological monitor onsite. As such, no impacts to
aquatic or terrestrial species are expected as a result of the project.
Although not anticipated, utility relocations or adjustments and real property transactions may be necessary in
support of the project. At least one lane of traffic will be open at all times during construction activities.
Emergency vehicles and property owners will have access at all times.
CONSEQUENCE OF NEGATIVE ACTION:
Delay in approving the project will result in a delay of completion of work and may jeopardize flood capacity.
CHILDREN'S IMPACT STATEMENT:
Not applicable.
ATTACHMENTS
CEQA attachments