States’ PFAS Monitoring, Discharge Rules Spur Regulated Entities’ Fears

States are beginning to require industrial facilities to monitor for and in some cases limit the discharge of some per- and polyfluoroalkyl substances (PFAS) in stormwater and wastewater, prompting concern from regulated entities that states are moving ahead with differing policies even as EPA lacks any analytical methods for PFAS in wastewater. Among the actions drawing attention are Pennsylvania’s recent issuance of a Clean Water Act (CWA) National Pollutant Discharge Elimination System (NPDES) permit containing PFAS limits for an Air...