Concentrations of two pesticides (diazinon and chlorpyrifos) have been substantially reduced in the SF Bay Delta watershed, however newer classes of pesticides are causing aquatic toxicity in these waterways.
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SF Bay Delta Water Quality Progress Report: Lower Feather River & Lower Sacramento River Diazinon and Chlorpyrifos TMDL (PDF)(7 pp, 478 K,
06/15/2015)
Water Quality Progress Report for diazinon and chlorpyrifos in the Lower Sacramento and Feather Rivers.
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SF Bay Delta Water Quality Progress Report: Lower San Joaquin River Diazinon and Chlorpyrifos TMDL (PDF)(9 pp, 449 K,
06/15/2015)
Water Quality Progress Report for diazinon and chlorpyrifos in the Lower San Joaquin River.
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SF Bay Delta Water Quality Progress Report: Sacramento County Urban Streams Diazinon and Chlorpyrifos TMDL (PDF)(6 pp, 1 MB)
Water Quality Progress Report for diazinon and chlorpyrifos in Sacramento County Urban Creeks.
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SF Bay Delta Water Quality Progress Report: Sacramento-San Joaquin Delta diazinon and chlorpyrifos TMDL (PDF)(9 pp, 493 K,
06/15/2015)
Water Quality Progress Report for diazinon and chlorpyrifos in the Sacramento-San Joaquin River Delta.
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SF Bay Delta Water Quality Progress Report: SF Bay Urban Streams Pesticide & Toxicity TMDL (PDF)(7 pp, 416 K,
06/15/2015)
Water Quality Progress Report for diazinon and chlorpyrifos in San Francisco Bay Area Urban Creeks.