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NHDES updates drinking water compliance timeline for federal PFAS standards
New Hampshire Safe Drinking Water Act ImplementationNew Hampshire Department of Environmental Services (NHDES)New Hampshire, US
Announced
May 14, 2026
Description
NHDES published updated guidance on drinking water regulations, noting that EPA has indicated the PFOA/PFOS compliance deadline will be extended from April 26, 2029 to April 26, 2031 when the revised federal rule is finalized. NHDES retains authority to adopt compliance deadlines more stringent than EPA's revised rules. New Hampshire's current state MCLs (PFOA: 12 ppt, PFOS: 15 ppt, PFHxS: 18 ppt, PFNA: 11 ppt) remain in effect while federal regulations are being revised.
Key Findings
NHDES updates drinking water compliance timeline for federal PFAS standards
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