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.

Peer Review Package

The peer review package contains the following documents compiled into a single file.

  • February 21, 2024 – CalEPA External Scientific Peer Review Program Final Response to Request for Peer Review
  • Attachments:
    • October 25, 2023 – Division of Water Rights Request to CalEPA External Scientific Peer Review Program for Scientific Peer Review
      • Attachment 1 – Plain English Summary
      • Attachment 2 – Scientific Assumptions, Findings, and Conclusions to Review
      • Attachment 3 – Individuals who Participated in the Development of the Proposal
      • Attachment 4 – References Cited
  • Web Accessible Reviews
    • Joseph Domagalski, Ph.D
    • Stephen Katz, Ph.D.
    • Margaret Palmer, Ph.D.
    • N. LeRoy Poff, Ph.D.
    • John Sabo, Ph.D.
    • Mario Barletta, Ph.D.
    • Daren M. Carlisle, Ph.D.

Other Documents

The Peer Reviewers' Curriculum Vitae are available upon request by emailing SacDeltaComments@waterboards.ca.gov.

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Sacramento/Delta: SacDeltaComments@waterboards.ca.gov