From another source: > "The Flint River has a history of poor water quality due to industrial pollution and agricultural runoff, according to an assessment by

From another source: > "The Flint River has a history of poor water quality due to industrial pollution and agricultural runoff, according to an assessment by the Michigan Department of Natural Resources. But efforts to remove pollutants and clean up the river have been successful in the past 40 years. Now, some are wondering if the problem lies in the city’s treatment of the water, which differs from its treatment of its previous water source, Lake Huron." http://thinkprogress.org/climate/2015/06/05/3666238/flint-michigan-drinking-water-contamination/ http://thinkprogress.org/climate/2015/06/05/3666238/flint-mi...