Local histories are available for McPherson County, Kansas Genealogy. County histories may include biographies, church, school and government history, and military information. For more information about local histories, see the wiki page section Kansas Local Histories.
A class-action lawsuit alleges the state Department of Environmental Quality didn't treat the water for corrosion, in accordance with federal law, and because so many service lines to Flint are made of lead, the noxious element leached into the water of the city's homes. How tap water became toxic in Flint.
The exact mode of formation of flint is not yet clear but it is thought that it occurs as a result of chemical changes in compressed sedimentary rock formations, during the process of diagenesis.