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AB-497 • 2026

San Francisco Bay/Sacramento-San Joaquin Delta Estuary Water Quality Control Plan: update: substitute environmental document: exemption.

San Francisco Bay/Sacramento-San Joaquin Delta Estuary Water Quality Control Plan: update: substitute environmental document: exemption.

Water
Passed Legislature

This bill passed both chambers and reached final enrollment, even if later executive action is not shown here.

Sponsor
Wilson
Last action
2026-02-02
Official status
From committee: Filed with the Chief Clerk pursuant to Joint Rule 56.
Effective date
Not listed

Plain English Breakdown

The official source does not provide specific details on future legislation intentions, only a statement of intent.

Update for San Francisco Bay and Delta Water Quality

AB-497 requires an update to the water quality plan for the San Francisco Bay and Sacramento-San Joaquin Delta by August 31, 2026, and exempts certain environmental document requirements.

What This Bill Does

  • Requires the State Water Resources Control Board to update the Water Quality Control Plan for the San Francisco Bay/Sacramento-San Joaquin Delta Estuary (Bay-Delta Plan) by August 31, 2026.
  • Includes updates on the Sacramento River and its tributaries, eastside tributaries of the Delta, and the Delta itself in the new plan.
  • Exempts the board from preparing an environmental impact report for this update under certain conditions.
  • Allows the board to skip some steps related to public review and comment for a specific draft document.

Who It Names or Affects

  • The State Water Resources Control Board
  • People living near or using water from the San Francisco Bay, Sacramento River, and Delta

Terms To Know

Environmental Impact Report (EIR)
A document that explains how a project might affect the environment.

Limits and Unknowns

  • The bill does not specify what happens if the update is not completed by August 31, 2026.
  • It's unclear how much public input will be needed for the updated plan.

Bill History

  1. 2026-02-02 California Legislative Information

    From committee: Filed with the Chief Clerk pursuant to Joint Rule 56.

  2. 2026-01-31 California Legislative Information

    Died pursuant to Art. IV, Sec. 10(c) of the Constitution.

  3. 2026-01-06 California Legislative Information

    Re-referred to Com. on W. P., & W.

  4. 2026-01-05 California Legislative Information

    From committee chair, with author's amendments: Amend, and re-refer to Com. on W. P., & W. Read second time and amended.

  5. 2026-01-05 California Legislative Information

    Referred to Coms. on W. P., & W., E.S & T.M. and NAT. RES.

  6. 2025-02-11 California Legislative Information

    From printer. May be heard in committee March 13.

  7. 2025-02-10 California Legislative Information

    Read first time. To print.

Official Summary Text

AB 497, as amended, Wilson.
San Francisco Bay/Sacramento-San Joaquin Delta Estuary Water Quality Control
Plan.
Plan: update: substitute environmental document: exemption.
The Porter-Cologne Water Quality Control Act establishes a statewide program for the control of the quality of all the waters in the state and makes certain legislative findings and declarations. Existing law establishes the State Water Resources Control Board to exercise the adjudicatory and regulatory functions of the state in the field of water resources. Pursuant to its authority, the board adopted the Water Quality Control Plan for the San Francisco Bay/Sacramento-San Joaquin Delta Estuary (Bay-Delta Plan) that, among other things, establishes objectives to protect the beneficial uses of the water and prevent nuisance within the waters specified in the Bay-Delta Plan.
Existing law, the California Environmental Quality Act (CEQA),
requires a lead agency, as defined, to prepare, or cause to be prepared, and certify the completion of, an environmental impact report (EIR) on a project that it proposes to carry out or approve that may have a significant effect on the environment or to adopt a negative declaration if it finds that the project will not have that effect. CEQA also requires a lead agency to prepare a mitigated negative declaration for a project that may have a significant effect on the environment if revisions in the project would avoid or mitigate that effect and there is no substantial evidence that the project, as revised, would have a significant effect on the environment. CEQA, except as provided, when a regulatory program of a state agency requires a plan or other written documentation containing environmental information, authorizes that plan or other information to be submitted in lieu of the EIR if the Secretary of the Natural Resources Agency has certified that regulatory program, as specified.
This bill would require the board to adopt an update to the Bay-Delta Plan that addresses the Sacramento River and its tributaries, Sacramento-San Joaquin Delta (Delta) eastside tributaries, and the Delta no later than August 31, 2026. The bill would exempt the board from the requirements to prepare, provide for review, transmit to state agencies, and include written or oral responses to comments on a specified draft substitute environmental document, as provided.
Existing law makes available to the Natural Resources Agency bond funds for, among other things, implementing an updated State Water Resources Control Board’s San Francisco Bay/Sacramento-San Joaquin Delta Estuary Water Quality Control Plan (Bay-Delta Water Quality Control Plan), which establishes water quality control measures and flow requirements needed to provide reasonable protection of beneficial uses in the watershed.
This bill would state the intent of the Legislature to enact future legislation relating to the Bay-Delta Water Quality Control Plan.

Current Bill Text

Read the full stored bill text
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