San Francisco Bay/Sacramento – San Joaquin Delta Estuary (Bay-Delta) Watershed Efforts

Bay-Delta Plan Update

Protecting the Bay-Delta watershed and its many beneficial uses is one of the State Water Board’s primary responsibilities and top priorities.  The State Water Board is responsible for developing and modifying the Bay-Delta Plan which establishes water quality control measures and flow requirements needed to provide reasonable protection of beneficial uses in the watershed. The Board is now engaged in urgent efforts to address prolonged and precipitous declines of native aquatic species in the Bay-Delta and the ecosystem they depend upon.

The Bay-Delta Plan is being updated through two separate processes (Plan amendments). The first Plan amendment is focused on San Joaquin River flows and southern Delta salinity. The second Plan amendment is focused on the Sacramento River and its tributaries, Delta eastside tributaries (including the Calaveras, Cosumnes, and Mokelumne rivers), Delta outflows, and interior Delta flows.

This web page is intended to keep the public and other interests that depend on the Bay Delta system for agriculture, commerce, recreation and environmental pursuits – updated on the latest environmental and regulatory Bay Delta Plan documents that are being developed and considered by the Board.

Below, please find important links to the newest information pertaining to the Bay-Delta Plan updates that are now underway, as well links to a more complete record of historical information:

San Joaquin River Flows and Southern Delta Salinity Sacramento/Delta Flows and Cold Water, Delta Outflows, and Interior Delta Flows

On August 21-22, 2018, the Board will hear oral comment on the “Proposed Amendments to the Water Quality Control Plan for the San Francisco Bay/Sacramento–San Joaquin Delta Estuary and Final Substitute Environmental Document;” however, final action by the Board will be continued to a future Board meeting. See revised agenda and notice below.

Updated August 21, 2018


Updated July 6, 2018

California WaterFix

On August 26, 2015, the California Department of Water Resources (DWR) and U.S. Bureau of Reclamation (Reclamation) filed a change petition to add points of diversion on the lower Sacramento River as part of the California WaterFix project. A Board hearing on the petition commenced on July 26, 2016 and is expected to continue through 2017. In addition, DWR and Reclamation filed an application for a water quality certification pursuant to Section 401 of the Clean Water Act that will be considered administratively in a separate but parallel process.

State Water Board California WaterFix Activities


Drought Information

Information on past Bay-Delta drought activities is provided at the following links:


Bay-Delta Compliance

Information on some of the Bay-Delta compliance issues is located at the following links:


Water Quality Control Plans and Associated Water Right Decisions


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