"In the latest regulatory rollback on toxic chemicals, the US Environmental Protection Agency (EPA) has withdrawn Biden-era guidance on how to prevent PFAS pollution in drinking water.
In a memo dated August 11, 2026, the agency’s Office of Water identified several documents it deems “appropriate for rescission,” including a 2022 memo that encouraged states to use existing Clean Water Act authorities to prevent toxic per- and polyfluoroalkyl substances (PFAS) from entering drinking water.
The memo also said that, while not legally binding, the agency has a responsibility to ensure that its guidance “reflects existing law, regulations, Executive Orders, and current policies, and that such guidance is informed by stakeholder engagement and public comment, as appropriate.”
Under that premise, documents related to National Pollutant Discharge Elimination System (NPDES) permits were deemed appropriate for rescission. Under the Clean Water Act, NPDES permits regulate wastewater discharges by limiting pollutant levels and establishing mandatory monitoring and reporting requirements."
Julie Zenderoudi reports for The New Lede September 18, 2026.
