The state claimed “forever chemicals,” also known as PFAS, contaminated groundwater from an industrial park where they were used for decades.

M will pay the state of New Jersey up to $450 million through the next 25 years to settle claims of PFAS contamination. The Maplewood-based manufacturer sold the “forever chemicals” to the DuPont Chambers Works facility in the Garden State for many years.

New Jersey has reached a historic settlement of up to $450 million with 3M over “forever chemicals” contaminating state water supplies, including a site in Sayreville.