EPA Updates, Expands Superfund Screening Levels For Five PFAS

Correction Appended EPA has updated and expanded its regional screening and removal management levels for five per- and polyfluoroalkyl substances (PFAS) to aid the agency in investigating PFAS contamination at Superfund sites as the agency ramps up its efforts to investigate and remediate the emerging contaminants. The new levels are based on stringent risk-based values derived by the Agency for Toxic Substances and Disease Registry (ATSDR) and in the case of GenX, a conservative EPA toxicity value issued last...