Nitrates

Action Alert: Take a Stand Against Unchecked Data Center Development

Healthier Future for Wisconsin

Filling up a glass with drinking water from kitchen tap

New report: Nitrate Contamination Driving Health Crisis and Rising Costs in Wisconsin

October 2, 2025

Wisconsin faces a growing public health crisis from nitrate contamination in drinking water.…

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Nitrate Contamination Map, source: Clean Wisconsin

The Cost of Nitrate Contamination in Wisconsin’s Drinking Water

September 18, 2025

Wisconsin faces a growing public health crisis caused by widespread nitrate contamination in our drinking water.…

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Reinforced Protections Against Untreated Animal Waste

January 30, 2024

Clean Wisconsin's intervention in a lawsuit targeting the state's water pollution permitting program helped maintain crucial protections for our surface and groundwaters.…

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Evers Takes Action for Rural Wisconsin Families Dealing with PFAS and Nitrate Pollution

October 4, 2022

Every family in Wisconsin deserves safe water, but tens of thousands of rural Wisconsinites can’t drink the water flowing from their taps because…

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Supreme Court Win: CAFO Water Protections

December 25, 2021

In Clean Wisconsin v. Department of Natural Resources, the Supreme Court ruled the DNR must exercise its authority to protect Wisconsin’s water resources from manure pollution.…

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USDA Study Exposes Wisconsin’s Failure to Protect Families from Water Pollution

June 23, 2021

Researchers with the US Dept. of Agriculture unveiled a new study examining the health impacts of water pollution in northeastern Wisconsin. The results are eye-opening—hundreds of people in Kewaunee County alone are getting sick with gastro-intestinal illnesses each year primarily because manure runoff from nearby farms is leaching into their drinking water.…

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Clean Wisconsin joins agricultural, environmental groups to address rural drinking water pollution

March 12, 2021

While Wisconsin’s water quality challenges have received more attention from lawmakers the last couple of years, we haven’t seen the bold, transformative policies…

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Randy Hughes discussing greener farming techniques

Vicious Cycle: The Chance For Contamination

January 30, 2021

In ‘Vicious Cycle: The Chance For Contamination,’ farmers explain the why the nitrates are a necessity for their crops, how it can lead…

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family photo of a man, woman, and child, holding a corn cob

Vicious Cycle: The Struggle For Clean Water

January 25, 2021

In “Vicious Cycle: The Struggle For Clean Water,” homeowners with contaminated wells relay their experience of fighting for clean water, experts explain the…

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Environmental, agricultural groups form initiative to advocate for clean water, thriving farms

December 15, 2020

Four environmental and agricultural groups are coming together to advocate for meaningful state-level policy changes that support clean water and resilient farms.…

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