From the Document: "The detection of certain per- and polyfluoroalkyl substances (PFAS) in some public water supplies has generated public concern and increased attention to the U.S. Environmental Protection Agency's (EPA's) actions to respond to PFAS using Safe Drinking Water Act (SDWA) authorities. For more than a decade, EPA has been evaluating PFAS under SDWA to determine whether a national drinking water regulation is warranted for one or more of these substances. In March 2021, EPA finalized determinations to develop SDWA regulations for the two most frequently detected PFAS, perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) (86 'Federal Register' 12272). EPA's determination triggers a SDWA requirement to propose a regulation within 24 months (e.g., by March 2023 for PFOA and PFOS), and finalize the rule within 18 months of the proposal. EPA's 2021 'PFAS Strategic Roadmap' states that it intends to propose a PFOA and PFOS drinking water regulation by fall 2022, and finalize the rule by fall 2023. In addition, the 116 th Congress enacted legislation directing EPA to increase PFAS monitoring in water supplies, and authorizing appropriations for grants to address PFAS in public water supplies, among other provisions. The 117th Congress provided appropriations for such grants."
CRS In Focus, IF11219
Congressional Research Service: https://crsreports.congress.gov/