"The U.S. Environmental Protection Agency’s top Midwest official said her department knew as early as April about the lack of corrosion controls in Flint’s water supply — a situation that likely put residents at risk for lead contamination — but said her hands were tied in bringing the information to the public.
Starting with inquiries made in February, the federal agency battled Michigan’s Department of Environmental Quality behind the scenes for at least six months over whether Flint needed to use chemical treatments to keep lead lines and plumbing connections from leaching into drinking water. The EPA did not publicize its concern that Flint residents’ health was jeopardized by the state’s insistence that such controls were not required by law.
Instead of moving quickly to verify the concerns or take preventative measures, federal officials opted to prod the DEQ to act, EPA Region 5 Administrator Susan Hedman told The Detroit News this week. Hedman said she sought a legal opinion on whether the EPA could force action, but it wasn’t completed until November."