HomeMy WebLinkAboutMINUTES - 01172012 - C.02RECOMMENDATION(S):
APPROVE and AUTHORIZE the Chief Engineer, Contra Costa County Flood Control and
Water Conservation District (FC District), or designee, to execute a contract with LSA
Associates, Inc., in an amount not to exceed $467,000 to provide vegetation, rangeland,
water quality monitoring, data analysis, and report writing services in support of the
Streambank Vegetation Management Study, effective January 1, 2012 through December
31, 2014, Concord area. (100% Flood Control District Zone 3B Funds)
FISCAL IMPACT:
This study is funded 100% by Zone 3B (greater Walnut Creek watershed) funds.
BACKGROUND:
This study consists of comparing the standard herbicide application method used by the FC
District to manage vegetation growth adjacent to Flood Control maintained channels with
grazing by sheep or goats to manage the vegetation growing adjacent to the stream lowflow
channel and below the top of the bank of the channel. Implementation of all three vegetation
management
APPROVE OTHER
RECOMMENDATION OF CNTY ADMINISTRATOR RECOMMENDATION OF BOARD COMMITTEE
Action of Board On: 01/17/2012 APPROVED AS RECOMMENDED OTHER
Clerks Notes:
VOTE OF SUPERVISORS
AYE:John Gioia, District I Supervisor
Gayle B. Uilkema, District II
Supervisor
Mary N. Piepho, District III
Supervisor
Karen Mitchoff, District IV
Supervisor
Federal D. Glover, District V
Supervisor
Contact: Cece Sellgren (925)
313-2296
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: January 17, 2012
David Twa, County Administrator and Clerk of the Board of Supervisors
By: STACEY M. BOYD, Deputy
cc: R. M. Avalon, Deputy Chief Engineer, M. Carlson, Flood Control, C. Sellgren, Flood Control, C. Windham, Flood Control
C. 2
To:Contra Costa County Flood Control District Board of Supervisors
From:Julia R. Bueren, Public Works Director/Chief Engineer
Date:January 17, 2012
Contra
Costa
County
Subject:Streambank Vegetation Study Contract with LSA Associates, Inc., Concord area. (100% Flood Control
District Zone 3B Funds) Project No. 7520-6D8333
BACKGROUND: (CONT'D)
techniques will be administered in small plots (approximately ½ acre) using a
randomized block design. A total of 18 treatment plots over two reaches of Walnut Creek
will be treated. Measurements of vegetation response (species, height, and biomass),
water quality (a variety of parameters), and soil substrate will be taken before, during,
and/or after the vegetation treatment. The study will be used to help the FC District make
a business decision regarding when and where to use each of these vegetation
management techniques in the future. The Iron Horse Trail will be temporarily closed
during herbicide application (approximately a half day) to allow application vehicles to
use the trail. The trail will be open during the sheep and goat grazing (approximately two
weeks for each of the three study reaches). A permanent fence already is installed at the
top of bank to keep the grazing animals confined to the streambank and dogs on the trail
from harassing the grazing animals.
CONSEQUENCE OF NEGATIVE ACTION:
Failure to approve the contract will delay the implementation of the study.
CHILDREN'S IMPACT STATEMENT:
Not applicable.
ATTACHMENTS
LSA Contract
LSA backup documents