Draft Supplement Report Peer Review

The State Water Board is considering and evaluating proposed Voluntary Agreements (VAs) for updating and implementing the Bay-Delta Plan and as part of that process has prepared the Final Draft Scientific Basis Report Supplement in Support of Proposed Voluntary Agreements for the Sacramento River, Delta, and Tributaries Update to the San Francisco Bay/Sacramento-San Joaquin Delta Water Quality Control Plan (Draft Supplement Report) to document the science supporting the proposed provisions included in the VAs. The report was prepared by State Water Board, Department of Fish and Wildlife, and Department of Water Resources staff. The initial Draft Supplement Report was released for public comment in January 2023. Based on those comments, the initial draft was revised, and the 2023 Final Draft Supplement Report prepared and released in September 2023 as an appendix to the draft Staff Report in support of proposed Sacramento/Delta Updates to the Bay-Delta Plan.

The Draft Supplement Report was submitted for external scientific peer review facilitated by the CalEPA External Scientific Peer Review Program in October 2023, in accordance with Health and Safety Code Section 57004 requirements that the scientific basis of any statewide plan, basin plan, plan amendment, guideline, policy, or regulation undergo external scientific peer review before adoption. The focus of the peer review was the scientific assumptions, findings, and conclusions described in the Draft Supplement Report.

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Sacramento/Delta: SacDeltaComments@waterboards.ca.gov