California Attorney General Rob Bonta and four of his colleagues submitted an amicus letter late Monday night, citing shortfalls in the company 3M’s multi-billion-dollar proposed settlement with contaminated water utilities. The attorneys general said that while they are in favor of moving forward with the settlement, 3M should pay more than the $10 billion to $12 billion the firm has offered — in order to fund the massive remediation efforts public utilities will have to undertake to eliminate “forever chemicals” from their supplies. … Joining Bonta in submitting amicus letter were the attorneys general of Arizona, the District of Columbia, Pennsylvania and Wisconsin. 3M in a statement said it was pleased with the agreement.