EPA press release announces intent to extend PFAS NPDWR compliance timeline for PFOA/PFOS to 2031 and reconsider other PFAS components

EPA announced it will keep the existing National Primary Drinking Water Regulation (NPDWR) maximum contaminant levels (MCLs) for PFOA and PFOS, but intends to pursue a rulemaking to extend the PFOA/PFOS compliance date to 2031. EPA also stated it intends to rescind and reconsider the determinations/regulations for PFHxS, PFNA, HFPO-DA (GenX), and the Hazard Index mixture approach (PFHxS/PFNA/HFPO-DA/PFBS). This is an implementation timeline and scope signal (planned rulemaking), not a finalized change in the press release itself; compliance teams at drinking water systems and affected suppliers should track the forthcoming proposal/final action and prepare for potential timeline and scope changes in monitoring/compliance obligations.