The Trump administration is considering rolling back a major Biden-era regulation on “forever chemicals” in drinking water, a move that could leave people more exposed to the substances linked to cancer, high blood pressure and fertility problems. But any attempt to weaken the rule would run into a formidable statutory standard, experts say — the same one that has gotten EPA into legal messes in the past. Finalized last spring, EPA’s current rule requires water utilities to remove the man-made chemicals from drinking water starting in four years. Formally called per-and polyfluoroalkyl substances or PFAS, “forever chemicals” are known for their virtual indestructibility and have been found in approximately half the nation’s tap water.

Other drinking water news:

• The National News Desk: Fact Check Team: Millions of Americans exposed to toxic ‘forever chemicals’ in water​
• California Department of Public Health: News release: CDPH issues statement on community water fluoridation