EPA issues PFAS discharge permit guidance to EPA Regions

A December 5, 2022, letter from Environmental Protection Agency’s (EPA) Administrator for Water, Radhika Fox, updates and supplements an April 2022 guidance released by EPA on PFAS discharges in National Pollutant Discharge Elimination System (NPDES) permits and through pretreatment programs. The letter does not contain binding recommendations but does give insight into the EPA’s recommendations and potential future plans for PFAS remediation in water systems.

Regulatory background

  • Per- and polyfluoroalkyl substances (PFAS) are a large class of synthetic fluorinated organic compounds. PFAS can repel oil and water and are produced for use as surface treatments for soil, stain, and water resistance; for textiles, paper, and metals; and most notably for fire suppression foams (aqueous film-forming foams, or AFFFs).

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