California Attorney General Rob Bonta and four of his colleagues filed an amicus letter Monday, expressing strong concerns about a $1.18 billion sum that DuPont — and spinoffs Chemours and Corteva — said they would agree to pay affected providers. The attorneys general say they support moving forward with the settlement, but they argue in the new filing that DuPont and the other chemical companies should actually be paying more to address the pollution in public waters caused by “forever chemicals.”