TMDL Projects
San Joaquin River Organophosphorous (OP) Pesticide TMDL
Final Staff Report

To request a copy of documents listed on this page, please contact Jessica Rader at Jessica.Rader@waterboards.ca.gov or (916) 464-3199.

San Joaquin River Diazinon and Chlorpyrifos Basin Plan Amendment Staff Report

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Regional Board staff have completed this report for the control of diazinon and chlorpyrifos runoff into the lower San Joaquin River. Meeting notifications and documents will be posted here as they are available.

Staff Report
Staff Report Figures
Staff Report Tables
Appendix A: Subarea Descriptions
Appendix B: Subarea Pesticide Use
Appendix C1, C2, & C3: Diazinon and Chlorpyrifos Concentration Data
Appendix D: San Joaquin River Diazinon and Chlorpyrifos Economic Scenarios
Appendix E: Criteria Calculations for Diazinon and Chlorpyrifos

(Page last updated 6/14/22)

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TMDL Projects San Joaquin River Organophosphorous (OP) Pesticide TMDL Final Staff Report