Use our online tool to interpret your PFAS drinking water results.
The Wisconsin Department of Health Services (DHS) uses groundwater standards and a hazard index approach to protect people from PFAS in drinking water. Our online tool compares the PFAS levels in a drinking water sample to the recommended groundwater standards, calculates the hazard index, and provides advice to follow based on the results.
DHS establishes groundwater standards to protect people from harmful substances. If the level of one or more PFAS is above the recommended standard, water users should take steps to reduce their PFAS exposure.
DHS uses the hazard index approach to protect from mixtures of PFAS. If the hazard index is equal to or greater than one, water users should take steps to reduce their PFAS exposure.
Per- and Polyfluoroalkyl Substances Wisconsin Department of Health
PFAS: Perfluoroalkyl and Polyfluoroalkyl Substances Wisconsin Department of Natural Resources
Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS)and Your Health Agency for Toxic Substances and Disease Registry
Per- and Polyfluoroalkyl Substances (PFAS) U.S. Environmental Protection Agency