EPA releases primacy extension request documents/templates for 2024 PFAS NPDWR implementation

EPA published primacy extension request support materials (memo and templates) to help states/primacy agencies request additional time to adopt the 2024 PFAS National Primary Drinking Water Regulation (NPDWR). The memo reiterates primacy timing mechanics (e.g., with an approved extension, primacy application packages are due no later than April 26, 2028; without an extension, due April 27, 2026 as noted in the memo). This is compliance-relevant for state drinking-water regulators and public water systems tracking state adoption/primacy timelines and associated implementation planning.