Residents
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USDA Forest Service Good Neighbor Authority (GNA) Agreement
GNA provides an opportunity for the state and others in the forestry community to work with the Chequamegon Nicolet National Forest (CNNF) to help increase the level of accomplishments on the national forest and see the benefits of increased forest…
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Surface Water and Fish Tissue PFAS Sampling
The DNR's Water Quality Program, in cooperation with the Fisheries Management Program and other partners, is conducting a multi-year, statewide monitoring project to sample fish tissue and water chemistry at select sites around the state near known…
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PFAS and Foam on Waterways
Foam is a common occurrence on Wisconsin waterways and can often be observed floating on the surfaces of lakes and rivers. Surface water foam can form as a result of natural processes or from human-caused discharges such as runoff of contaminants…
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Transient Non-Community (TN) Resources
A transient non-community water system (TN or TNCWS) is a public water system that provides water in a place such as a gas station or campground where people do not remain for long periods of time. Transient Non-Community Water System Fact Sheets…
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Wisconsin's Great Waters 2020 Photo Contest and Writing Project
The Office of Great Waters is pleased to present our 12th annual calendar, along with the winners and submissions from the 2020 Great Waters Photo Contest and Writing Project. As the calendar, photos and writings clearly show, the Great Lakes…
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Support Aquatic Invasive Species Research
Say Yes to Lakes! You don't need to register a boat to donate. Your donation supports aquatic invasive species work at DNR and provides grants to scientists studying ways to improve invasive species prevention and control. Donate Now…
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Ethylene Oxide
Ethylene oxide (EtO) is a flammable, colorless gas used to make other chemicals. It is necessary for the production of a range of products, including antifreeze, textiles, plastics, detergents and adhesives. Ethylene oxide also is used to sterilize…