Trump EPA Seeks To Rescind Four PFAS Limits, Delays Compliance To 2031

EPA plans to rescind nationwide limits on four PFAS, allow some utilities compliance extensions to 2031, and distribute roughly $1 billion in grants to address contamination.

Overview

A summary of the key points of this story verified across multiple sources.

1.

On May 18, 2026, EPA Administrator Lee Zeldin and HHS Secretary Robert F. Kennedy Jr. announced plans to rescind nationwide drinking water limits for four PFAS and to restart rulemaking.

2.

The move targets Biden-era 2024 limits that set MCLs of 4.0 parts per trillion for PFOA and PFOS and 10 parts per trillion for PFNA, PFHxS and GenX, according to EPA statements.

3.

Environmental groups including the Environmental Working Group and the Natural Resources Defense Council condemned the action, and actor Mark Ruffalo said it would cause more suffering, according to statements.

4.

EPA officials said the 2024 limits would reduce PFAS exposure for about 100 million people, while reporting estimates say PFAS contaminate drinking water for more than 200 million people.

5.

The agency proposed two rules that must undergo a multiyear approval process, would allow some utilities to seek two-year extensions to comply until 2031, and face ongoing litigation including a suit before the U.S. Court of Appeals for the D.C. Circuit.

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