On March 14, 2023, the EPA proposed a National Primary Drinking Water Regulation under the Safe Drinking Water Act to establish Maximum Contaminant Levels (MCLs) for six per- and polyfluoroalkyl substances (PFAS): Perfluorooctanoic acid (PFOA) Perfluorooctane sulfonic acid (PFOS) Perfluorononanoic acid (PFNA) Hexafluoropropylene oxide dimer acid (HFPO-DA, commonly known as GenX) Perfluorohexane sulfonic acid (PFHxS) Perfluorobutane … Continue reading EPA Proposes Stringent Regulation of PFAS in Drinking Water