Interactive PFAS map

The interactive map below shows PFAS drinking water data, county-level sociodemographic factors, and data on PFAS contamination sources obtained as part of a study cited below. These data were originally compiled as part of Liddie et al., 2023, which included data from 18 U.S. statewide monitoring campaigns.

The map below has since been updated and includes data compiled from 24 statewide monitoring campaigns of approximately 9,900 community water systems over 2016-2023.

To change layers, click on the panel in the bottom right.