Environmental Management
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Identify your water’s symptoms
Diagnose your water concerns based on the symptoms you notice about your drinking water. Possible causes are listed with the most likely first. Get answers to these and more questions:
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Drinking water & groundwater quality standards/advisory levels
The Drinking Water & Groundwater Quality Standards/Advisory Levels [PDF] contains the tables:
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Wisconsin's Capacity Development Program
The Capacity Development Program aims to help public water systems strengthen their ability to consistently supply safe drinking water to their customers. The program focuses on assisting system owners and operators, particularly small water systems…
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Instructions for creating and customizing a Consumer Confidence Report using DNR’s CCR generator
Consumer Confidence Reports (CCR) are required by the U.S. Environmental Protection Agency (EPA). The CCR must be prepared and distributed by all Community Water Systems in order to provide information concerning water quality for the previous…
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Mercury Ban In K-12 Schools
Under a 2012 law, Wisconsin schools are required to remove all mercury from school facilities and grounds.
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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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Water Supply Service Area Planning
By 2026, all water utilities that serve a population of 10,000 or more people will be required to develop a Water Supply Service Area Plan (see s. 281.348, Wis. Stats.). Communities that may need to develop this plan prior to 2026 include:
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Water use administrative rules REDIRECTS
The department has several administrative rules to implement the Great Lakes Compact and associated statewide water use regulations.
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Reporting water use
Registered withdrawers are required to measure or estimate the volume of water they withdraw every month and report that information annually to the DNR. Withdrawals may be reported by the property owner or by an authorized lessee, agent or operator…