TRENTON, N.J. (AP) — New Jersey’s attorney general said Tuesday chemical manufacturer 3M agreed to pay up $450 million to resolve lawsuits over natural resource contamination stemming from PFAS — commonly referred to as “forever chemicals.”

It marks the largest settlement regarding per- and polyfluoroalkyl substances – known as PFAS — in the state’s history.

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.