PFAS NPDWR Consultations and Stakeholder Engagements

March 5, 2022

Under the Safe Drinking Water Act, EPA has the authority to set enforceable National Primary Drinking Water Regulations (NPDWRs) for drinking water contaminants and require monitoring of public water systems. In March 2021, EPA published Regulatory Determinations for Contaminants on the Fourth Contaminant Candidate List which included a final determination to regulate perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) in drinking water. The Agency is now developing a proposed NPDWR for these chemicals. As EPA undertakes this action, the Agency is also evaluating additional PFAS and considering regulatory actions to address groups of PFAS.

EPA will move as quickly as possible to issue updated health advisories for PFOA and PFOS that reflect the newest science and input from the Science Advisory Board. Concurrently, EPA will continue to develop a proposed PFAS National Primary Drinking Water Regulation for publication in Fall 2022. The Agency anticipates issuing a final regulation in Fall 2023 after considering public comments on the proposal.

 

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