How do PFAS end up in drinking water?

Drinking water contamination can come from a number of different sources:

  • discharges from manufacturing facilities that use PFAS
     

  • discharges from wastewater treatment plants
     

  • water that percolates down through the soil around landfills
     

  • firefighting foams that run off into surface waters

The Wisconsin Department of Natural Resources (DNR) maintains a of sites in Wisconsin with potential and confirmed PFAS contamination in soil and groundwater. Click here to open the interactive map.