Environmental Protection
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Mercury Ban
Wisconsin Act 44 was signed in October 2009 and regulates the sale, distribution and use of specific mercury and mercury-containing devices to Wisconsin citizens, businesses, institutions and others, including specific requirements for Wisconsin K-…
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About Mercury
Mercury is a naturally occurring element (Hg on the periodic table) that is found in air, water and soil. It exists in several forms: elemental or metallic mercury, inorganic mercury compounds and organic mercury compounds. Elemental or metallic…
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Wisconsin water withdrawals
Every year, all registered high capacity property owners are required to submit monthly water use (withdrawal) totals to the DNR. Statewide, there are over 14,000 registered high capacity withdrawal sources including over 13,000 groundwater and 1,…
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Great Lakes Compact and diversions
The Great Lakes Compact is a formal agreement between the Great Lakes states which details how the states will work together to manage and protect the Great Lakes-St. Lawrence River Basin. A parallel agreement (the Sustainable Water Resources…
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Aquatic Communities
Wisconsin has a large and diverse aquatic resource that supports numerous species, communities, ecological processes and human uses. In addition, many terrestrial species and processes are dependent on neighboring aquatic systems. The aquatic…
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Managing Wisconsin’s Rivers
Under state and federal law, the DNR conducts water planning and master planning for natural areas and forests, implements regulations and secures special designations to protect, maintain or restore river resources. Designation of Wild Rivers…