EPA announces intent to extend PFOA/PFOS NPDWR compliance timeline and reconsider other PFAS components

EPA announced it will keep the existing maximum contaminant levels (MCLs) for PFOA and PFOS under the PFAS National Primary Drinking Water Regulation, while signaling intended rulemaking to extend the compliance deadline (EPA references 2029 and discusses extending to 2031). EPA also states intent to rescind and reconsider determinations/regulatory components for PFHxS, PFNA, HFPO‑DA (GenX), and the Hazard Index mixture (PFHxS, PFNA, GenX, PFBS). Drinking water compliance programs should monitor forthcoming proposal/final actions that could shift compliance dates and alter the regulated PFAS scope/approach.