Contra Costa County Water Agency


The Contra Costa County Water Agency advises the Board of Supervisors on Water Policy in the County and the Sacramento-San Joaquin Delta. Contra Costa County is bounded on its western, northern and eastern sides by the San Francisco Bay and the Sacramento-San Joaquin Delta. A healthy, vibrant Delta Estuary is closely tied to the physical, societal and economic health of those who live, work and recreate in the San Francisco Bay-Delta region and throughout much of the state, and these natural features are the basis for not only the County's identity and quality of life but also our economic vitality. Contra Costa County lies at the heart of the Bay-Delta region and the future of this nationally significant resource substantially influences the future of the County.

Working for a Healthy Delta

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However, without continued improvements to the Delta ecosystem this resource finds itself in jeopardy and today's operational practices are not sustainable. All indicators of a healthy Delta show significant decline. It is imperative to act quickly to improve the health of the Delta, before irreparable harm is done. To that end, the County is proactive in its advocacy for developing new strategies that take water from the Delta when water is in surplus to the environmental, municipal and agricultural needs of those who reside in the Delta.

County Water Policy
Contra Costa County has developed the Delta Water Platform to identify and promote activities and policy positions that support the creation of a healthy Sacramento-San Joaquin Delta.
View Delta Water Platform (PDF)

The Contra Costa County Water Agency is also a member of the Delta County Coalition (DCC) to advocate for delta-related issues of interest to all members of the the DCC.
View DCC 12 Principles (PDF)

Current Issues

Bay Delta Conservation Plan (BDCP)

About: The Bay Delta Conservation Plan (BDCP) is a 50-year conservation road map for the Sacramento-San Joaquin Delta that proposes new water intakes and conveyance, known as Conservation Measure 1 or the twin tunnels. It hopes to assure that water continues to move from the Delta southward. However, the Board opposed the BDCP in its current form due to concerns with the twin tunnels and their unmitigated impacts to water quality and lack of improvement to the fragile Delta ecosystem.

Project Sponsors: State and Federal Agencies, Multiple California water Districts

Documents and Resources:

May 13, 2014 Board of Supervisor Presentation on BDCP

Board Order

Power Point Presentation (PDF)

Video Link (start at 44:30)

Contra Costa County Board of Supervisor Comments on BDCP (PDF) (13.5 MB)

BCDP website - Department of Water Resource

Maven's Notebook: BDCP Roadmap - Independent Water Science and Policy Blog

San Francisco to Stockton Ship Channel Navigation Improvement Project

About: The San Francisco Bay to Stockton Navigation Improvement Study is part of a long-term effort to improve deep draft navigation from the San Francisco Bay to Stockton, California. The project objectives are to reduce transportation costs and increase economic efficiency of maritime commerce en route to refineries along the northern Contra Costa County waterfront and to the Port; improve maritime navigation by reducing public safety risks due to possible groundings or collisions; and reduce potential environmental effects from increased vessel trips in the channels associated with current light loading and lightering operations.

Project Sponsor: Port of Stockton with Contra Costa County Water Agency and the Western States Petroleum Association (WSPA) and member refineries as contributing partners

Documents and Resources

Draft SF to Stockton Navigation Improvement Project Overview Map (PDF)