The U.S. Environmental Protection Agency (EPA) has proposed to amend Part 302 of the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA), also known as the Superfund law, to add per- and polyfluoroalkyl substances (PFOA/PFOS, collectively, PFAS) to the list of “hazardous substances.” EPA’s proposal can be found here. If finalized, the designation …