News & Analysis as of

State Water Boards Drinking Water Environmental Policies

Best Best & Krieger LLP

California State Water Resources Control Board Issues New and Revised PFAS Advisory Levels

On October 29, 2025, the California State Water Resources Control Board’s Division of Drinking Water (State Water Board) issued new and revised notification levels and/or response levels for four per- and poly- fluoroalkyl...more

Nossaman LLP

California Direct Potable Reuse Regulations Approved

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On August 6, 2024, the Office of Administrative Law (OAL) approved the direct potable reuse (DPR) regulations that were previously adopted by the State Water Resources Control Board (State Water Board) on December 19, 2023....more

Nossaman LLP

On-Demand Webinar | Flood or Drought? A Discussion of the Election’s Potential Legislative Impacts on the Water Sector

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President-elect Joe Biden’s victory over Donald Trump could mean big changes for federal treatment of issues affecting water service providers, as well as how such issues are addressed in California, where Governor Newsom...more

Downey Brand LLP

California PFAS Push Now Includes POTWs as State Water Board Rolls Out New Testing Order

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On July 9, 2020, the California State Water Resources Control Board (State Water Board) issued an investigative order (the Order) to sample for per- and polyfluoroalkyl substances (PFAS) at more than 250 publicly owned...more

Nossaman LLP

Water Board Issues Draft Definition of Microplastics in Drinking Water

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The California State Water Resources Control Board (“State Water Board”) recently issued a draft Definition of Microplastics in Drinking Water and an accompanying staff report....more

Nossaman LLP

State Water Board Imposes Stricter Response Levels for PFOA and PFOS

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On February 6, 2020, the California State Water Resources Control Board lowered the response levels (RLs) for perflourooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS), two of the most common compounds in the...more

Allen Matkins

California Environmental Law & Policy Update - February 2020

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Governor Newsom proposes new plan for San Joaquin River Delta - Governor Gavin Newsom revealed a novel approach Tuesday to managing the San Joaquin River Delta that would keep more water in the fragile delta while restoring...more

Downey Brand LLP

PFAS Are Here: First Round of Results Show PFAS in California Drinking Water Supply Wells

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Results from the first phase of sampling drinking water supply wells for per- and polyfluoroalkyl substances (PFAS) were recently published by the California State Water Resources Control Board (State Water Board) and show...more

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