The Environmental Protection Agency (EPA) has directed over $15 million to Wisconsin to combat contamination from per- and polyfluoroalkyl substances (PFAS), commonly known as "forever chemicals". This funding is part of a broader strategy to address the widespread issue of PFAS in drinking water across the United States. Wisconsin, particularly Marathon County, has been grappling with PFAS contamination for years, with communities near Wausau still working on treatment systems.
PFAS are a group of over 10,000 synthetic chemicals used in various consumer and industrial products since the 1940s. Their chemical bonds are incredibly resistant to breaking down, leading to their persistence in the environment and accumulation in human tissue over time. Health researchers have linked long-term PFAS exposure to severe health issues, including kidney and testicular cancer, thyroid disease, high cholesterol, immune system disruption, and pregnancy complications. The EPA has determined that there is no safe level of exposure to two of the most studied compounds, perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS).
Wausau's experience highlights the costly and lengthy process of achieving clean water. The city first detected PFAS in its wells in 2019, leading to a public press conference and the distribution of water filter pitchers. The city then invested in a new treatment plant, incurring significant financial burdens on ratepayers. Wausau's situation underscores the challenges faced by small and midsize communities in meeting stricter federal PFAS standards.
Neighboring communities like Rothschild and Weston have also struggled with PFAS contamination. Rothschild shut down a municipal well and is building a treatment facility, while Weston took two wells offline and installed temporary treatment systems. Rib Mountain has also detected PFAS in its wells and is constructing a permanent treatment plant.
The most concerning situation, however, may be at 3M's Wausau Greystone site, where a hazardous substance discharge of PFAS was reported in 2025. Groundwater testing revealed PFOA levels far exceeding the proposed groundwater enforcement standard. This has led to a class action lawsuit and ongoing investigations by the Wisconsin Department of Natural Resources.
The EPA's actions on Monday are seen as a continuation and correction of the Biden-era PFAS policy. Administrator Lee Zeldin pledged to maintain core drinking water protections while addressing legal missteps from the previous administration. The EPA is proposing new rules to allow eligible water systems more time to comply with PFOA and PFOS limits and to address Biden-era limits on additional PFAS compounds.
The $15.37 million allocated to Wisconsin is part of the Emerging Contaminants in Small or Disadvantaged Communities grant program, which targets smaller water systems. This funding can be used for testing, planning, and physical infrastructure to address PFAS and other emerging contaminants, including private well owners. The EPA has distributed $5 billion through this program nationally over five years, with additional federal financing available through other channels.
The EPA has also launched the PFAS OUTreach initiative to help small, rural, and disadvantaged water systems reduce exposure to PFOA and PFOS. This initiative is particularly relevant to communities with limited financial and technical resources, such as those around Wausau.
In conclusion, the EPA's efforts to address PFAS contamination are crucial for ensuring clean and safe drinking water. While federal funding can ease the financial burden, the long-term solution lies in holding polluters accountable and implementing stricter regulations to prevent further contamination.
