Consultants
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Wisconsin Hazardous Waste Annual Report
The 2024 Hazardous Waste Annual Report is now open on the DNR Switchboard. Reports are due March 1, 2025.Wisconsin's hazardous waste regulations require several types of hazardous waste generators to report to the Department of Natural Resources…
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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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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)…
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Public Participation in Water Quality Assessments
The DNR is seeking data on the water quality of lakes, streams and rivers in our state. Along with Department data, submitted data will be used to assess the quality of our state's water resources and pinpoint problem areas. Data will be…
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Surface Water Quality Assessment Process
Subscribe to receive updates about water quality standards and assessments. The Clean Water Act (CWA) requires states to assess the quality of its surface waters and report the results to the public.
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Surface Water Impairments and Pollutants
Impaired waters are identified by comparing monitoring results for a given water to water quality parameter thresholds, which provide guidelines for identifying water quality conditions. Impaired waters in Wisconsin are affected by a variety of…
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Featured water restorations
Since 2002, Wisconsin has delisted 147 individual streams, lakes and beaches, representing approximately 500 stream miles and 52,800 lake acres. Below are a few stories of the road to these waters' aquatic health recovery.