2023 EPA Proposal to Regulate PFAS in
Drinking Water
What did EPA announce?
On March 14, 2023, U.S. Environmental Protection Agency (EPA) announced a proposed rule for
regulating six per- and polyfluoroalkyl substances (PFAS) in drinking water. Over the next year, the
proposed rule will undergo an extensive public review and comment process. The final regulation may
differ from the proposal.
EPA proposed maximum contamination levels (MCLs) of 4 parts per trillion (ppt) for perfluorooctane
sulfonate (PFOS) and four parts per trillion (ppt) perfluorooctanoic acid (PFOA). Continue reading 2023 EPA Proposal to Regulate PFAS in
Drinking Water