you can see that the Head of the Environmental Department resigned recently after it was discovered he knowingly advised Michigan residents that drinking water was safe when it wasn't.
Michigan Governor Rick Snyder appointed an Emergency Manager who switched Flint's source from the Detroit System to the Flint River.
Parents in the area immediately started seeing elevated lead levels in their children's blood.
For more information please consider these three articles on Democracy Now's website:
How Flint, Michigan, Saved Money and Poisoned Its Children: City Declares Water Emergency
Flint Mayor Declares State of Emergency over Lead in Water
Head of MI Environmental Dept. Resigns over Flint's Poisoned Water
Update, Obama declares Flint, Michigan Emergency Over Lead in drinking water