2026 PFAS Limits Explained - 5 States Facing Immediate Enforcement
PFOA, PFOS, PFNA, PFHxS, and HFPO-DA - all targeted by the EPA rule, now in full enforcement phase.
4 ppt is near the detection limit. The EPA standard is legally enforceable across all 50 states.
PFAS compounds never break down in nature. They accumulate in human blood and are linked to cancer and liver damage.
EPA data shows 6-10% of all public water systems serving 100 million Americans are out of compliance.
Water systems must install granular activated carbon or reverse-osmosis filtration infrastructure.
Cape Fear River basin (NC) and industrial manufacturing watersheds in Michigan have the highest documented levels.
Delaware River basin utilities are racing to upgrade as testing identifies legacy military base runoff.
Decades of agricultural fluorochemical usage have leached into deep municipal well aquifers across the state.
Standard activated-carbon pitchers leave PFAS untouched. Only NSF 53/58 certified reverse osmosis is effective.
Use our interactive Water Footprint Calculator to measure your hydrological risk and treatment options.