Indianapolis-based Corteva had been the agricultural and seed division of DowDuPont, prior to spinning off from DowDuPont in February 2018.
"After the dangers of PFOA began to be publicized, DuPont announced its intention to spin off its 'performance chemicals' business, which manufactures fluoroproducts that contain PFOA, into a newly publicly traded company called Chemours Co.," the original lawsuit from nearly six years ago alleged.
The lawsuit charged DuPont and Chemours — DuPont is cited throughout the lawsuit rather than Chemours or Corteva — with negligence, public nuisance, statutory nuisance, trespassing and punitive damages.
All told, the lawsuit alleged DuPont discharged more than 150,000 pounds of PFOA into the Ohio River and surrounding Mid-Ohio River region, in the air, soil and water.
The 29-page lawsuit covers decades of alleged deception and falsification by DuPont and Chemours, going back to the mid-1980s.
"DuPont intentionally concealed the dangers of PFOA from governmental entities and the public at large ... to protect its profits and avoid public responsibility for injuries and damage caused by its toxic product," the lawsuit states.
The Washington Works facility along the Ohio and West Virginia border — technically in Wood County, W.Va., along 1,200 acres — is Chemour's largest plant in the U.S., according to the lawsuit brought by then-Ohio Attorney General Mike DeWine.
The Ohio lawsuit and subsequent settlement is one of thousands of PFAS-related lawsuits that have been filed across the country.
The Chemours, DuPont and Corteva settlement comes two days after a U.S. Court of Appeals judge for the Sixth Circuit in Ohio dismissed a massive class action suit brought by a firefighter against 3M Co. and nine other chemical firms.
That lawsuit would have covered every Ohioan — about 11.8 million people — against certain levels of exposure to PFAS chemcials.
3M agreed in June to pay $10.3 billion to settle hundreds of claims that the company polluted public drinking water with the chemicals, while Chemours, DuPont and Corteva reached a similar deal earlier this year with U.S. water providers for $1.19 billion.