State DNR Adds New PFAS Rules
Regulating 'forever chemicals' in drinking water, surface water and fire fighting foam.

Foam present in Starkweather Creek in October 2019 shows elevated levels of PFOS and PFOA (PFAS chemicals). Photo from courtesy of the DNR.
The Wisconsin Department of Natural Resources (DNR) has announced new administrative rules for perfluroalkyl and polyfluroalkyl substances (PFAS). Called “forever chemicals,” PFAS and similar chemicals were used in man-made products from non-stick fast food wrappers to firefighting foam for decades. The bio-resistant chemicals don’t break down in nature nor within our bodies, and have been linked to numerous chronic diseases including cancers.
Establishing rules for PFAS in drinking water has been a difficult journey for the state. In February, the Natural Resources Board rejected the advice of scientists who recommended limits for PFAS in drinking water be set at 20 parts per million. The recommendation was also backed by the Department of Health Services. In a 6-1 vote, however, the board set a limit of 70 parts per million.
Earlier this month, Attorney General Josh Kaul filed a lawsuit against three Wisconsin manufacturers and 15 other defendants accused of contaminating the state with PFAS and its relatives. Environmental groups have also pushed the DNR to institute PFAS standards for groundwater. Implementing the most recent trio of administrative rules were identified as priorities by the Wisconsin PFAS Action Council (WisPAC) in the state’s PFAS action plan. WisPAC consists of representatives from close to 20 state agencies.
DNR sets PFAS rules for drinking water, surface water, firefighting foam was originally published by the Wisconsin Examiner.
More about the PFAS Problem
- Wisconsin Supreme Court Backs State Regulators of PFAS Pollution - Danielle Kaeding and Rich Kremer - Jun 24th, 2025
- Gov. Evers Releases Statement on Wisconsin Supreme Court Decision in WMC Inc v. DNR - Gov. Tony Evers - Jun 24th, 2025
- Rep. Shelia Stubbs Elected Great Lakes-St. Lawrence Legislative Caucus Vice Chair of the Task Force on Emerging Contaminants - State Rep. Shelia Stubbs - Jun 16th, 2025
- Legislature’s Budget Committee Unanimously Boosts Clean Water Funding By $732 Million - Danielle Kaeding - Jun 6th, 2025
- Trump Administration moves to weaken standards for toxic ‘forever chemicals’ in drinking water - Clean Wisconsin - May 14th, 2025
- Wisconsin Officials Unhappy With EPA Plan To Weaken PFAS Standards - Danielle Kaeding - May 14th, 2025
- Wisconsin Could Lose $55 Million Under Proposed EPA Budget Cuts - Danielle Kaeding - May 7th, 2025
- French Island Makes Progress on PFAS Pollution - Richelle Wilson and Trevor Hook - Mar 24th, 2025
- Who Will Pay for PFAS Pollution? - Bennet Goldstein - Feb 27th, 2025
- Gov. Evers’ biennial state budget prioritizes clean water, clean energy, and public lands for Wisconsin - Wisconsin Conservation Voters - Feb 18th, 2025
Read more about PFAS Problem here