HomeMy WebLinkAboutMINUTES - 03222011 - C.08RECOMMENDATION(S):
APPROVE and AUTHORIZE the Chief Engineer, Flood Control and Water Conservation
District, or designee, to execute Amendment No. 1 to the Consulting Services Agreement
with GEI Consultants, Inc. (GEI) for work on the Upper Sand Creek Basin Expansion.
Amendment 1 increases the payment limit by $110,500 to a new payment limit of
$1,011,787 and changes the completion date from January 11, 2011, to May 31, 2012.
FISCAL IMPACT:
The action will result in an increase of $110,500 to the payment limit and will be funded by
Drainage Area 130 developer impact fees.
BACKGROUND:
The existing Consulting Services Agreement for geotechnical engineering provides the
Contra Costa County Flood Control and Water Conservation District (FC District) with
professional services for the analysis, design, and state regulatory coordination, to ensure
dam stability of the future Upper Sand Creek Detention Basin, located within the City of
Antioch in the Marsh Creek Watershed. The Upper Sand Creek Detention Basin is a
primary element of the regional infrastructure
APPROVE OTHER
RECOMMENDATION OF CNTY ADMINISTRATOR RECOMMENDATION OF BOARD COMMITTEE
Action of Board On: 03/22/2011 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: Carl J. Roner (925)
313-2213
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: March 22, 2011
David J. Twa, County Administrator and Clerk of the Board of Supervisors
By: JEANIE ROUNSAVILLE, Deputy
cc: R. M. Avalon, Deputy Public Works Director, C. Roner, Flood Control, C. Windham, Flood Control
C. 8
To:Contra Costa County Flood Control District Board of Supervisors
From:Julia R. Bueren, Public Works Director/Chief Engineer
Date:March 22, 2011
Contra
Costa
County
Subject:Amendment to the Consulting Services Agreement with GEI Consultants, Inc., Antioch Area. (100%
Drainage Area 130 Funds) Project No. 7562-6D8518
BACKGROUND: (CONT'D)
included in the DA 104/Zone 1 plan and fee structure, approved in 1992. Construction of
the ultimate basin will protect downstream areas of Antioch, Brentwood, and Oakley
from flooding, as well as mitigate the impact of development in Eastern Contra Costa
County. The California State Department of Water Resources, Division of Safety of
Dams (DSOD) requires a detailed study and report on site geology, dam foundation
design, and construction. The engineering capabilities required to investigate the site, to
prepare plans, specifications, and cost estimates for contract advertising, and to inspect
the construction work is beyond the capability of the FC District staff.
The amendment to the payment limit and completion date is due to overall project delays
caused by additional requirements imposed by DSOD and the U.S. Army Corps of
Engineers.
In June of 1992, the Board approved the Environmental Impact Report for the Marsh
Creek Watershed Regional Drainage Plan, of which the Upper Sand Creek Basin is a
component, in compliance with CEQA. On November 3, 2010, the Board of Supervisors
approved a project-specific mitigated negative declaration concerning this project.
CONSEQUENCE OF NEGATIVE ACTION:
Without the Board of Supervisors’ approval, the primary flood protection infrastructure
planned for Marsh Creek Watershed will be delayed. In addition, the significant time and
resources expended by staff and the Consultant to complete the project design would be
lost.
CHILDREN'S IMPACT STATEMENT:
Not applicable.
ATTACHMENTS
GEI Contract Amendment 1
GEI CSA 9-01-08