Proposed PFOA and PFOS compliance extension rule

June 23, 2026

Read the full article (EPA)

"On May 18, 2026, the EPA announced a proposed rule to uphold the federal drinking water Maximum Contaminant Levels (MCLs) for perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) while strengthening practical implementation by providing an option for drinking water systems to request two additional years - to 2031 - to comply with the enforceable limits.

The EPA will accept written comments on the proposed rule in the public docket until July 20, 2026. The public docket can be accessed at www.regulations.gov under Docket ID: EPA-HQ-OW-2025-1742.

The EPA will hold a virtual public hearing on July 7, 2026, where the public is invited to provide the EPA with verbal comments on the proposed rule. During the hearing, the agency will present information on the proposed rule and exemption schedule and then receive comments from the public. Registration to attend and/or provide verbal comment during the hearing is required and the last day to pre-register to provide public comment is July 1, 2026. Information and registration for the public hearing is available here. The EPA will post an agenda and list of pre-registered public commenters to this website no later than July 6, 2026. For questions related to the public hearing, please contact [email protected]."