News & Press | April 15, 2024
USEPA Finalizes National Primary Drinking Water Regulation for Six PFAS
On April 10, 2024, the United States Environmental Protection Agency (USEPA) finalized a National Primary Drinking Water Regulation (NPDWR), establishing legally enforceable maximum contaminant levels (MCLs) for six (6) per- and polyfluoroalkyl substances (PFAS) in drinking water. Five PFAS (perfluorooctanoic acid [PFOA], perfluorooctyl sulfonate [PFOS], perfluorohexanesulfonic acid [PFHxS], perfluorononanoic acid [PFNA], and hexafluoropropylene oxide dimer acid [HFPO-DA, or “GenX”]) have individual MCLs. Additionally, the USEPA finalized an enforceable Hazard Index (HI) MCL of 1.0 when mixtures containing...
Read More