EPA launches PFAS OUT initiative to support drinking water systems’ PFAS rule implementation

U.S. EPA launched the PFAS OUT initiative to proactively engage public water systems and support implementation of federal PFAS drinking water requirements. EPA indicates it expects to begin contacting systems with PFOA/PFOS results above 4 ppt in summer 2026 and will provide webinars and navigation to funding and technical assistance resources. Compliance teams at water systems and supporting contractors should monitor outreach timing, participate in webinars, and align treatment/monitoring planning with the federal PFAS drinking water rule implementation support being rolled out by EPA.