Partners
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PFAS Lab Analysis in Wisconsin
As of Oct. 15, 2024, the DNR expects regulated entities, unless otherwise directed by the DNR, to use EPA method 1633 for all non-drinking water matrices.As of Feb. 1, 2025, the DNR requires regulated entities, unless otherwise directed by the DNR,…
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PFAS-Containing Firefighting Foam
Perfluoroalkyl and polyfluoroalkyl substances (PFAS) are a large group of human-made chemicals that have been used in industry and consumer products worldwide since the 1950s. PFAS have been used specifically in some synthetic Class B firefighting…
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PFAS News and Reports
The DNR is committed to keeping citizens and other stakeholders informed about PFAS in Wisconsin. Below are reports, news releases and important information from the DNR.ReportsPFAS in Wisconsin: January - June 2024PFAS in Wisconsin: July - December…
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Choose a map
Maps help present information in a form that is more easily understood and meaningful to broad audiences. You can browse the mapping applications below for more specific information displayed in a map format. Many of these maps are interactive,…
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Travel Wisconsin
The Wisconsin State Park System partners with Travel Wisconsin to encourage more people to visit Wisconsin’s great outdoors. Visit TravelWisconsin.com to find lodging, restaurants, entertainment options and other activities around our state parks,…
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Air Monitoring Map for Industrial Sand Mine/Processing Plants
Industrial sand operations that have a requirement in their permit to monitor for particulate matter must provide ambient monitoring data to the DNR. The DNR Air Management Program works with industrial sand facilities to provide technical…
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Locations of Industrial Sand Mines and Processing Plants in Wisconsin
Industrial sand for use in the petroleum, glass and foundry industries has been produced in Wisconsin for over 40 years. The demand for sand increased exponentially starting in 2014, related to use of Wisconsin sand as a proppant in the extraction…
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Wisconsin's Water Quality Report to Congress
Every two years section 305(b) of the Clean Water Act requires states to publish an overall report on the quality of all surface waters across the state. This report, called the Integrated Report of Water Quality, is submitted to the EPA on April 1…
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Surface Water Quality Restoration
Once an impairment in water has been identified, the next step is to identify the best method of restoration. There are many programs depending on the type of pollution. A large focus of restoration work has been Total Maximum Daily Load (TMDL)…