Perfluoroalkyl and polyfluoroalkyl substances (PFAS) are a large group of man-made chemicals that are widespread in the environment. High concentrations of PFAS can affect health. 

water discharging into pond

PFAS Health Effects

Overview of what PFAS are, how people are exposed, how they affect health, and how to reduce exposure. 

PFAS Water Standards

Information on how the federal government and states, including Wisconsin, are taking action to begin regulating PFAS in drinking water. 

PFAS News & Actions in Dane County

Learn the latest about PFAS contamination, water testing results, and remediation plans. 

PFAS Frequently Asked Questions

We are all still learning about PFAS. See our FAQs for some answers.