Wisconsin Attorney General Josh Kaul filed a lawsuit Wednesday seeking to force nearly 20 companies that he alleges contaminated the environment with chemicals known as PFAS to reimburse the state for investigations and cleanup work.

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A conservative member of the state Department of Natural Resources policy board can remain on the panel indefinitely even though his term ended more than a year ago, a divided state Supreme Court decided on Wednesday.

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The Environmental Protection Agency is warning that two nonstick and stain-resistant compounds found in drinking water are more dangerous than previously thought and pose health risks even at levels so low they cannot currently be detected.

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Wisconsin Republicans will allow regulations Democratic Gov. Tony Evers' administration developed to control pollution from a group of chemicals known as PFAS to take effect, a spokesman for the lawmaker who controls the Legislature's rules committee said Monday.

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A Wisconsin judge on Tuesday agreed to keep on hold his ruling from April that prevented state regulators from requiring businesses and others responsible for pollution by PFAS chemicals to investigate and clean up the contamination.

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Marshfield and Adams have joined the list of Wisconsin cities that have shut down municipal wells due to PFAS contamination.

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Dane County officials are suing dozens of firefighting foam manufacturers alleging their products contaminated the area around the county' airport.

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Madison Mayor Satya Rhodes-Conway wants to spend $425,000 to design a system to filter PFAS chemicals out of a city well.

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The state Department of Natural Resources has restarted efforts to set standards for bacteria in groundwater after conservatives on the agency's policy board killed the attempt in February.

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Wisconsin regulators lack the inherent authority to require businesses to clean up contamination from PFAS chemicals and other toxic contaminants because legislators haven't established any restrictions on the substances, a judge ruled Tuesday.

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