The settlement comes as residents, communities, regulators and environmental activists across the country are struggling with how to address contamination from PFAS, also known as “forever chemicals.”

Democratic Gov. Tony Evers hailed the settlement with Tyco Fire Products as a “historic and important milestone” in the fight for clean water. The lawsuit filed in 2022 alleged that Tyco, a subsidiary of Johnson Controls, had contaminated the area around a firefighting training center since the 1960s and did not do enough to address it.

“Today’s a key step toward making sure polluters are held accountable, take responsibility for their actions, and ensure Wisconsinites don’t have to foot the bill for cleaning up the messes that others made,” Evers said in a statement announcing the deal.

But residents of the affected city of Marinette were hoping for more.

“The word of the day is underwhelming from our perspective,” said Doug Oitzinger, a former mayor of Marinette and current president of the advocacy group Save Our Water. “The dollar amount disappointed us. Ten million is kind of a drop in the bucket.”

Tyco ended outdoor training sessions with the foam containing PFAS chemicals in 2017. Also that year, the company first started providing bottled water and water purification systems to affected residents. The company says it has spent more than $100 million addressing the contamination.

Tyco said in a statement Thursday that it was pleased to have reached the deal, saying it “reflects the extensive work Tyco has undertaken” to address PFAS pollution.

“We’ve been part of the Marinette community for over 100 years and the spirit of doing what is best for our neighbors and the environment will continue to be our priority,” the company said.

PFAS are often referred to as forever chemicals because they resist breaking down, whether in well water or the environment. In the human body, they accumulate in the liver, kidneys and blood. Research has linked them to an increased risk of certain cancers and developmental delays in children.

The chemicals were developed as coatings to protect consumer goods from stains, water and corrosion. Nonstick cookware, carpets, outdoor gear and food packaging are among items that contain the chemicals. They also are an ingredient in firefighting foams.

Government estimates suggest that up to half of all U.S. households have some level of PFAS in their water — whether it comes from a private well or a tap. It is a widespread problem in Wisconsin and spawned numerous lawsuits.

Under the terms of the settlement announced Thursday, Wisconsin will put the $10 million from Tyco into a trust fund earmarked for PFAS cleanup. Tyco also agreed to continue to provide for replacement wells to provide clean drinking water to affected residents, conduct required monitoring and reporting, and implement further measures for the long-term remediation of the area.

The lawsuit, filed by Democratic Wisconsin Attorney General Josh Kaul, alleged that the company violated state law when it failed to notify regulators about a PFAS discharge and did not investigate or remediate the contamination around the Fire Technology Center in Marinette, a city of about 11,000 people that borders Michigan’s Upper Peninsula.

Tyco officials said at the time the lawsuit was filed that the company has invested “considerable resources” on investigating and remediating PFAS pollution from the Marinette firefighting training facility, including offering bottled water and in-home filtration systems to affected residents as well as building a groundwater pollution extraction system.

A second lawsuit filed by the state against Tyco and more than a dozen other companies over PFAS contamination in Wisconsin remains active.

The settlement announced Thursday will take effect if it’s approved by the judge overseeing the case.

Oitzinger, the former Marinette mayor, said Tyco was getting off too easy.

“Legally you may have gotten off of some hooks, but morally you’re not there,” he said. “You’re not there by a long shot.”