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.

Kohler Co. has agreed to pay a $20 million civil penalty to resolve allegations that emissions from its small spark-ignition engines violated the Clean Air Act and California law.

The Wisconsin Senate is scheduled to approve a bill designed to bolster and streamline the state's pollution credit-trading system.

Republican Attorney General Brad Schimel has settled a pollution case with 3M that won't require the company to pay any fines, which critics say will only encourage companies to ignore environmental regulations.

A new Wisconsin Department of Natural Resources draft report wrongly concludes that sand mining operations don't produce fine dust particles and shouldn't impact human health, an environmental advocacy group contends.

Environmentalists balked Friday at Republican Gov. Scott Walker's plans to sue the federal government over new limits on power plants' carbon emissions, saying the governor is ignoring climate change and simply wants to show he opposes government regulation as he mulls a presidential bid.

A former employee of Shell Pipeline Co. pleaded guilty Wednesday to safety violations in a jet fuel leak at General Mitchell International Airport in Milwaukee that cost millions of dollars to clean up.

A former gas station owner has been ordered to pay $10,885.70 in forfeitures, court costs and attorneys' fees for a judgment filed against him last week over soil contamination.

An animal rendering company in the town of Medina will pay $27,500 in forfeitures and penalties for environmental violations, according to a news release from the state attorney general’s office.

Grassland Dairy Products Inc. has been ordered to pay a $300,000 penalty to Wisconsin for violating state water pollution laws.

A Madison company that polluted waters during a sandmining operation in the city of Blair will pay $200,000 in forfeitures and costs.

During an expanded, 90-minute argument session Tuesday, the justices of the U.S. Supreme Court wrangled over whether the Environmental Protection Agency has the authority to impose power plant emission rules upon states that contribute to the air pollution of neighboring states.

The owner of Duescher’s Legendairy Farms, an animal feeding operation, will pay the state $100,000 for environmental violations.

The Wisconsin Public Service Corp. has been ordered to pay $80,000 in forfeitures and court costs for excessively polluting the area surrounding its coal power plant in Rothschild.

A federal court on Tuesday upheld a 2008 air pollution standard the Obama administration vowed to strengthen, but later reversed itself and kept in place.

A Clyman recycling company was ordered this month to pay $40,000 in penalties and court costs after it failed to adequately respond to two spills that sent waste into waterways, according to a news release sent Thursday by Attorney General J.B. Van Hollen’s office.

The operator of a biomass power plant on the Mississippi River in Cassville will pay $150,000 to settle air pollution violations.

Wisconsin utilities have agreed to spend more than $1 billion to clean up aging coal-fired power plants under a settlement with federal regulators announced Monday.

MILWAUKEE (AP) — Efforts to dredge toxic industrial chemicals from the Fox River should continue, a federal judge has ruled. The U.S. Environmental Protection Agency and state Department of Natural Resources filed a federal lawsuit against NCR Corp. and 11 others in 2010, after the companies said they were dredging the river under protest and that they had not agreed ...

A federal judge has ruled that Flambeau Mining Co. violated federal clean water laws at its former copper mine near Ladysmith, but that the amount of pollution was minimal.

The Wisconsin Supreme Court ruled Wednesday that a rural town lacks the authority to impose tougher water-quality standards on a livestock farm than the state requires.

A federal judge has decided that two companies won't have to pay for the cleanup of PCBs from Little Lake Butte des Morts and portions of the Fox River.

Dredging has resumed on the polluted Fox River after a federal appeals court denied NCR's request for a temporary stay.

A federal judge's ruling has opened the door to full-scale cleanup of a Wisconsin river polluted by toxins from a bygone papermaking era.

Cleaning up contaminated sediment from the Fox River in Brown County remains stalled until a judge can figure out who has to pay for the project, which could cost more than $1 billion.

Federal prosecutors were expected to ask a judge Thursday to restart the cleanup of contaminated sediment from the Fox River in Brown County, a project that could cost more than $1 billion.

A federal trial in Milwaukee has several paper companies arguing over which firms are responsible for cleaning up the Fox River contaminated decades ago by discharges from the papermaking process.

Bat guano is not a pollutant, as that term is used in a homeowner's insurance policy's pollution exclusion.