Guidance UpdateLiveNewsGuidance Update
EPA announces it will keep PFOA/PFOS MCLs while pursuing compliance deadline extension and reconsidering other PFAS components
Safe Drinking Water Act (SDWA) — PFAS National Primary Drinking Water Regulation (NPDWR)U.S. Environmental Protection AgencyUS
Announced
May 18, 2026
Description
EPA issued an official announcement summarizing its planned approach for the PFAS NPDWR: retain the PFOA and PFOS maximum contaminant levels (MCLs) while advancing proposed rulemaking actions that would extend the compliance timeline and separately reconsider/rescind certain other PFAS components (PFHxS, PFNA, HFPO‑DA/GenX and Hazard Index mixture provisions). This is not itself a binding rule change, but it is an authoritative compliance-signaling update confirming EPA’s intended direction and linking stakeholders to the relevant proposed actions and timelines.