On March 17, 2021, the United States Environmental Protection Agency (EPA) published an advance notice of proposed rulemaking (ANPRM) seeking data concerning discharges of per- and polyfluoroalkyl substances (PFAS) from manufacturers regulated in the Organic Chemicals, Plastics and Synthetic Fibers (OCPSF) point source category to inform potential future revisions to the category’s wastewater discharge requirements, fulfilling a pledge made in in the Final Effluent Guidelines Program Plan 14 issued earlier this year.

EPA’s ANPRM suggests EPA is considering ...