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Laura Pangallozzi

FILE - This Feb. 5, 2016, file photo, shows the Flint River in Flint, Mich. Michigan environmental officials announced Tuesday, Jan. 24, 2017, that Flint's water system no longer has levels of lead exceeding the federal limit. The finding by the Department of Environmental Quality is good news for a city whose 100,000 residents have grappled with the man-made water crisis since 2014. (AP Photo/Carlos Osorio, File) (AP)

At least 2 percent of US public water systems are like Flint’s

Laura Pangallozzi