Environmental Protection
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Wastewater Plan Review
DNR has returned to requiring paper submittals for most wastewater plan reviews. Some documents no longer require paper copies. View the table of required documents to verify document submittal requirements for each project type. Note that an…
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Groundwater Quiz
Test your knowledge and have some fun. The answers are at the bottom of the page.
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Sewer Service Area Planning
Sewer Service Area Planning is a process designed to anticipate a community's future needs for wastewater treatment. This planning helps protect communities from adverse water quality impacts through development of cost-effective and environmentally…
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Remediation & Redevelopment Program Public Notices
Remediation & Redevelopment (RR) Program public notices and public comment opportunities are listed below.External advisory group meeting information can be found on each group’s webpage and on the DNR Hearings and Meetings Calendar.Find…
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Public Input, Meetings & Rulemaking Efforts
PFAS In Wisconsin Webinar at 2 p.m. On April 19 Join the Wisconsin Department of Natural Resources (DNR) and the Department of Health Services (DHS) for the PFAS in Wisconsin Webinar at 2 p.m. on Monday, April 19,…
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PFAS Investigation and Cleanup
Per- and polyfluoroalkyl substances (PFAS) may enter the environment and result in contamination to groundwater, surface water, soil and/or sediment. In general, a person responsible for a discharge is required to report, investigate and cleanup the…
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Environmental and Health Impacts of PFAS
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 do not occur naturally, and some are widespread in the environment.…
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Wisconsin Lakes Partnership
Since its genesis in the early 1970s, the Wisconsin Lakes Partnership has been recognized as a national model of collaboration. Three groups form the core of this team: the DNR supplies the technical expertise and regulatory authority; the UW-…
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Wisconsin Lakes FAQ
Frequently asked questions about lakes are answered on this page.Water Levels and DroughtDoes drought make blue-green algae worse?
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Critical Habitat Areas
Every waterbody has critical habitat - those areas that are most important to the overall health of the aquatic plants and animals. Remarkably, 80 percent of the plants and animals on the state's endangered and threatened species list spend all or…