https://en.m.wikipedia.org/wiki/3M_Contamination_of_Minnesota_Groundwater https://en.m.wikipedia.org/wiki/3M_Contamination_of_Minnesot... > The drinking water

https://en.m.wikipedia.org/wiki/3M_Contamination_of_Minnesota_Groundwater https://en.m.wikipedia.org/wiki/3M_Contamination_of_Minnesot... > The drinking water of 14 communities, over 170,000 individuals, and over 150 square miles was contaminated through 3M's improper disposal of chemicals