Resources

Your hub for site information and references.

Browse All States

Explore sites across all 50 states and territories, organized by region.

Key terms and definitions for sites.

In-depth guides and resources for professionals and researchers.

Detailed answers to common PFAS contamination, testing, and remediation questions.

Official EPA page on per- and polyfluoroalkyl substances, including regulations and guidance.

Agency for Toxic Substances and Disease Registry resources on PFAS exposure and health effects.

Comprehensive technical and regulatory guidance from the Interstate Technology & Regulatory Council.

Environmental Working Group interactive map of known PFAS contamination sites across the US.

Department of Defense efforts to address PFAS contamination at military installations.