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San Joaquin River at Vernalis Salt and Boron TMDL and Basin Plan Amendment

This web page contains information on a TMDL and Basin Plan Amendment for the Control of Salt and Boron Discharges into the San Joaquin River. For additional information please contact Mark Gowdy at (916) 464-4717 or by email at mgowdy@waterboards.ca.gov.

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Draft Regional Board and US Bureau of Reclamation MAA to Address Salinity

CV-SALTS Initiative

San Joaquin River Upstream of Vernalis Salt and Boron TMDL and Basin Plan Amendment

Adoption and Approvals

Notice of Decision

September 2004 Final Basin Plan Amendment

July 2004 Draft Final Basin Plan Amendment Staff Report and Technical TMDL

29 April 2004 Public Workshop on Basin Plan Amendment

Comments on November 2003 Public Review Draft Basin Plan Amendment Staff Report and Technical TMDL

Comment letters solicited by the Regional Board before the deadline of 20 January 2004.

January 2004 Public Workshop -- Continuation of December 2003 Workshop

December 2003 Public Workshop on Basin Plan Amendment

November 2003 Public Review Draft Basin Plan Amendment Staff Report and Technical TMDL

September 2003 Peer Review Draft Basin Plan Amendment Staff Report and Technical TMDL

  • Peer Review Draft Basin Plan Amendment Staff Report, PDF (PDF info)
    This document includes the proposed Basin Plan Amendment staff report that was made available to peer reviewers. Appendices 1 through 5 were also provided to peer reviewers; they are available above (November 2003 Public Review Draft).

January 2002 Technical Total Maximum Daily Load (TMDL) Report

  • Salt and Boron TMDL for the Lower San Joaquin River, 2.2 MB*, PDF (PDF info) HTTP
    This document is the technical TMDL report for salt and boron in the Lower San Joaquin River submitted to the U.S. Environmental Protection Agency on 22 January 2002. The technical TMDL report includes a problem statement, numeric targets, a source analysis, and waste load allocations for point sources and load allocations for non-point sources. Regional Board Staff will now commence work on an amendment to the Water Quality Control Plan for the Sacramento River and San Joaquin River Basins (Basin Plan). The salt and boron technical TMDL report will not have any regulatory authority or effect until the Regional Board adopts components of the TMDL as part of a Basin Plan Amendment.
  • Appendix A, 680 KB, PDF (PDF info)
    Methods and data sources used to develop the TMDL source analysis
  • Appendix B, 376KB, PDF (PDF info)
    Geographic Information System data processing information and metadata
  • Appendix C, 145KB, PDF (PDF info)
    Estimates of Municipal and Industrial Salt Loading to the Lower San Joaquin River
  • Appendix D, 400KB, PDF (PDF info)
    Estimates of background salt and boron loading to the Lower San Joaquin River
  • Appendix E, 503KB, PDF (PDF info)
    Alternate Methods for calculating salt loading from the Northwest Side of the San Joaquin River Sub-area
  • Appendix F, 679KB, PDF (PDF info )
    DWRSIM flow data from CALFED Study 771 used to develop load allocations, Delta Mendota Canal delivery allocations, and Lower San Joaquin River diversion allocations (this appendix primarily consists of raw data)
  • Appendix G, 164KB, PDF (PDF info)
    Linkage analysis flows, salt loads, electrical conductivity, and boron concentrations (this appendix primarily consists of raw data)

Workshop Presentations

  • 29 April 2004 Workshop Meeting Notes Compiled by Public Affairs Management, 21 KB, PDF (PDF info)

  • 29 April 2004 San Joaquin River Management Group Presentation, 652 KB, PDF (PDF info)
    Representatives from the San Joaquin River Management Group gave a presentation at the April 29, 2004 public workshop on a conceptual plan for achieving salt and boron water quality objectives. The presentation included a description of the group participants, examples of potential implementation actions, and time lines for completing the plan.

  • 29 April 2004 Workshop, 256 KB, PDF (PDF info)
    Regional Board staff held a public workshop to solicit comments and alternate approaches for a Total Maximum Daily Load (TMDL) and Basin Plan Amendment to control salt and boron discharges to the Lower San Joaquin River.

  • September 2002 Salt and Boron TMDL workshop, 4.6 MB*, PDF (PDF info)
    Regional Board staff held a public workshop to present information on the draft Lower San Joaquin River salt and boron Total Maximum Daily Load (TMDL) implementation framework. This link provides a copy of the workshop presentation.

  • 4 March 2002 Workshop, 4.0 MB*, PDF (PDF info)
    Regional Board staff held a public workshop on 4 March 2002 to present the Salinity and Boron Total Maximum Daily Load (TMDL) developed for the Lower San Joaquin River.

  • 28 August 2001 Workshop, 4.0 MB*, PDF (PDF info)
    The Regional Board staff held a public workshop on 28 August 2001 to present new information for the Salinity and Boron Total Maximum Daily Load (TMDL) currently being developed for the Lower San Joaquin River. The purpose of the workshop was to provide an update on the status of the Salinity and Boron TMDL and to present proposed TMDL Load Allocations.

  • 1 March 2001 Workshop, 1.5 MB*, PDF (PDF info)
    Regional Board staff held a workshop on March 1, 2001 in Modesto to present an overview of the Salinity and Boron TMDL currently being developed. The purpose of this workshop was to explain the reasons for developing a Total Maximum Daily Load (TMDL) for Salinity and Boron in the Lower San Joaquin River, and to incorporate stakeholder input into the TMDL development process.

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--Web page updated 06/04/2008