To: The Contra Costa County Flood Control and Water Conservation District Board of Supervisors
From: Warren Lai, Public Works Director/Chief Engineer
Report Title: Contract Amendment with FlowWest, LLC, for Professional Engineering Services Relating to Hydrology, Hydraulic, and Hydrologic Data Collection.
Recommendation: Recommendation of the County Administrator
RECOMMENDATIONS:
Acting as the governing body of the Contra Costa County (County) Flood Control and Water Conservation District (FCD), APPROVE and AUTHORIZE the Chief Engineer, or designee, to execute a contract amendment with FlowWest, LLC., effective November 29, 2026, to increase the payment limit by $200,000 to a new payment limit of $500,000 and extend the term through November 29, 2028, for on-call consulting services for professional engineering services relating to hydrology, hydraulic, and hydrologic data collection, Countywide.
FISCAL IMPACT:
This contract amendment is funded 100% by Flood Control District Funds.
BACKGROUND:
The FCD provides regional flood protection, technical information, hydrology data and education to cities and residents, as well as environmental stewardship for over 70 miles of streams and several detention basins as part of the County’s flood protection system. The FCD prepares and reviews modification designs of the County’s flood control systems. In many cases, the flood protection facility proposed for modification was constructed by the U.S. Army Corps of Engineers or the U.S. Department of Agriculture Natural Resources Conservation Service, and therefore must adhere to their standards, policies, and procedures.
In implementing modifications to the flood control system, the FCD requires temporary specialized professional engineering services. Through this on-call agreement, the Consultant was contracted to provide hydrology, hydraulics, and hydrologic data collection services in support of FCD and outside agency projects throughout the County.
The solicitation for on-call consulting services for professional engineering services relating to hydrology was conducted in 2023. Following a competitive evaluation and selection process, the consultant was selected to enter into the contract, which became effective November 30, 2023. As the contract approaches its expiration, the FCD seeks to extend the agreement from November 29, 2026, to November 29, 2028. In addition, the FCD seeks to increase the payment limit of this contract by $200,000 to support various project needs.
CONSEQUENCE OF NEGATIVE ACTION:
Without the approval of the Board of Supervisors, the FCD will not be able to obtain timely on-call services for professional engineering services relating to hydrology, hydraulic, and hydrologic data collection.