Michigan Gov. Gretchen Whitmer (D) is ordering state officials to draft drinking water standards for five “PFAS” chemicals, with the goal of adopting final rules by October.

Michigan has waited long enough for federal regulatory action on the “forever chemicals,” which come from nonstick products, clothing tanners and firefighting foams, and can build up in humans, Whitmer said in a March 26 statement. She ordered an advisory group to research and propose maximum containment levels for the chemicals by July 1.

Environmentalists praised the step toward a state standard, which they’ve sought for more than a year.

But Whitmer’s...