Board adopts permanent PFAS standards despite utility concerns about implementation

Nov 19, 2025

The Board adopted permanent PFAS state action and maximum contaminant levels in state drinking water rules; water-system representatives warned of implementation costs and uncertainty caused by pending federal litigation.

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The Washington State Board of Health adopted permanent revisions Nov. 19 to WAC 246-290-315 and WAC 246-290-71006 that set state action levels and maximum contaminant levels for per- and polyfluoroalkyl substances (PFAS) consistent with federal standards adopted in 2024.

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