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Public Health

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    Historical Air Emissions Information

    The DNR first developed its web-based Air Reporting System (ARS) in 1995. Today, more than 1,650 emissions inventories and 600 Under Thresholds Notifications (UTNs) are submitted annually by facilities to the DNR via ARS.

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    Radon in private well water

    Radon is a substantial health risk in many Wisconsin homes. There is a risk of developing cancer from long term exposure to radon in air and water. If you get your drinking water from a private well, this page will guide you in evaluating whether…

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    Safety and Ebola hemorrhagic fever resources

    The DNR has received questions about health risks to wastewater treatment plant/sanitary sewer workers from sewage containing the Ebola virus. There is very little research on the fate and transport of the Ebola virus in wastewater collection…

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    Groundwater collaboration workgroup

    Given the unique hydrogeology in certain regions of the state, specifically the karst geology in northeast Wisconsin, the Department of Natural Resources helped facilitate a groundwater work group to assess issues regarding landspreading and…

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    Arsenic

    Arsenic is a naturally occurring element found in soil and bedrock throughout Wisconsin. Under certain conditions, arsenic can be released into groundwater and enter water wells. Long-term exposure to arsenic in drinking water is known to increase…

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    NR 140 Groundwater Quality Standards Update

    Subscribe to NR 140 Updates As part of a continuing commitment to protect public health and the environment, the DNR periodically updates groundwater quality standards in ch. NR 140, Wis. Adm. Code.

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    Wisconsin's groundwater law

    Wisconsin's groundwater law, Ch. 160, Wis. Stats., established the framework for a comprehensive approach to protect public health and welfare and the environment. The intent of this law is to minimize the concentration of polluting substances in…

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    Current groundwater standards

    Current public health and public welfare groundwater standards are contained in Ch. NR 140, Wis. Adm. Code.

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    America's Water Infrastructure Act

    On October 23, 2018, America's Water Infrastructure Act (AWIA) was signed into law and is an amendment to the Safe Drinking Water Act (SDWA). As stated by U.S. EPA, AWIA "improves drinking water and water quality, deepens infrastructure investments…

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    Management actions

    Source water and wellhead protection A sound plan has a to-do list that identifies a list of priority measures. The plan can be updated as actions are completed. Adopting a wellhead protection ordinance is the most fundamental protective action,…

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