Chemours, DuPont and Corteva have reached an agreement in principle to resolve all per- and polyfluoroalkyl substance (PFAS)-related drinking water claims of a defined class of public water systems that serve “the vast majority of the US population”. They will pay about $592 million, $400 million and $193 million respectively into a settlement fund by 12 June.

DuPont and the companies that used to be part of it, Chemours and Corteva, have reached a settlement with the Delaware Department of Justice. Under this, they are held responsible for decades of damage done to Delaware’s environment by per- and polyfluoroalkyl substances (PFASs).

The agreement has avoided a potential lawsuit for historic contamination by PFASs in Delaware, which remains DuPont’s headquarters. This had impacted waterways and groundwater located in each of the state’s three counties.

DuPont, its spin-off company Chemours, and Corteva, which unites DuPont’s and Dow’s former agrochemicals businesses, have agreed a settlement on all legal disputes concerning per- and polyfluoroalkyl substances (PFAS) arising out of the spin-off of Chemours in 2015.