The U.S. Environmental Protection Agency (EPA) announced last week its latest step in the implementation of its Action Plan—a preliminary regulatory determination regarding two per- and polyfluoroalkyl substances (PFAS)—perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS). The Action Plan was issued in February 2019 and outlined the agency’s efforts to address PFAS contamination in groundwater. This latest step comes on the heels of the EPA’s November 2019 proposal to add PFAS to the list of chemicals for which facilities must report use under the Emergency Planning and Community Right to Know Act (EPCRA).

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