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

EPA announced it will keep the National Primary Drinking Water Regulation (NPDWR) maximum contaminant levels (MCLs) for PFOA and PFOS, but intends to extend the compliance date from 2029 to 2031 through a forthcoming rulemaking. EPA also stated it intends to rescind the regulations and reconsider the regulatory determinations for PFHxS, PFNA, HFPO-DA (GenX), and the Hazard Index mixture (PFHxS, PFNA, HFPO-DA, and PFBS). EPA indicated it expects to propose the rule in the fall and finalize in Spring 2026. Compliance teams should monitor the upcoming proposal and consider impacts on drinking water compliance planning and regulated PFAS scope.