To: Board of Supervisors
From: Warren Lai, Public Works Director/Chief Engineer
Report Title: APPROVE a Contract Amendment with Larry Walker Associates, Inc., for MRP Compliance Services.
☒Recommendation of the County Administrator ☐ Recommendation of Board Committee
RECOMMENDATIONS:
APPROVE and AUTHORIZE the Chief Engineer, Contra Costa County Flood Control and Water Conservation District, or designee, to execute on behalf of the Contra Costa Clean Water Program, a contract amendment with Larry Walker Associates, Inc., effective June 30, 2025 to increase the payment limit by $600,000, to a new payment limit of $3,000,000 and to extend the contract termination date from June 30, 2025 to June 30, 2027 to provide technical assistance in order to maintain compliance with the Municipal Regional Stormwater Permit (MRP), Countywide. (100% Stormwater Utility Assessment Funds)
FISCAL IMPACT:
All costs associated with this contract will not exceed $3,000,000 and will be funded by stormwater utility fee assessments collected by the Cities/Towns and County, proportional to their respective populations.
BACKGROUND:
The Contra Costa Clean Water Program (the “CCCWP”) consists of Contra Costa County, its 19 incorporated cities/towns and the Contra Costa County Flood Control and Water Conservation District (hereinafter referred to collectively as “Permittees”). The CCCWP was established in 1991 through a Program Agreement in response to the 1987 amendments to the federal Clean Water Act (the “CWA”), which established a framework for regulating municipal stormwater discharges under the National Pollutant Discharge Elimination System (“NPDES”) Permit Program. The United States Environmental Protection Agency (the “USEPA”) published final rules implementing the 1987 CWA amendments in November 1990. The rules mandate that Permittees obtain and implement stormwater permits designed to reduce and eliminate the discharge of pollutants into and from Municipal Separate Storm Sewer Systems (the “MS4s”) they own and operate. Through the CCCWP, Permittees conduct many of the mandated activities collectively (referred to as “Group Activities”), such as water quality monitoring, special studies, and public education. The roles and responsibilities of the CCCWP and Permittees are outlined in the Contra Costa Clean Water Program Agreement, which was last updated and adopted by all Permittees in June 2010. The current San Francisco Bay Region Municipal Regional Stormwater NPDES Permit No. CAS612008, Order R2-2015-0049 (“Permit”), was issued in November of 2015.
The CCCWP Permittees request to retain Larry Walker Associates, Inc., to provide the technical expertise required to identify impacts of pollution and take measures to prevent pollutants from reaching local creeks and streams, and eventually the San Francisco Bay and Delta. All of these activities meet the requirements of the NPDES Permits.
CCCWP Staff, on behalf of the Permittees, respectfully requests approval of this Contract Amendment with Larry Walker Associates, Inc., for the period of June 30, 2025 through June 30, 2027
CONSEQUENCE OF NEGATIVE ACTION:
Without the approval of the Board of Supervisors, the CCCWP, 19 Cities and Towns, Contra Costa County, and the Flood Control District will be unable to meet the outreach requirements set forth by the San Francisco Bay Region Municipal Regional Stormwater NPDES Permit No. CAS612008, Order R2-2015-0049.