Amendments Under Development

Amendment to Incorporate Maximum Contaminant Levels for Disinfection Byproducts and Maximum Residual Disinfectant Levels

September 25, 2025
- Notice of Public Workshop and CEQA Scoping Meeting, and Notice of Opportunity to Comment

TMDL Projects

Elkhorn Slough and Bennett Slough biostimulatory substances TMDL
Pesticide Water Quality Criteria Development
Santa Maria River watershed neonicotinoid TMDL

(Page last updated 10/01/2025)

Water is a precious resource in California, and maintaining its quality is of utmost importance to safeguard the health of the public and the environment.

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