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Location: Inver Grove Heights
Description: Small, stable plume in shallow groundwater near Mississippi River.
Flint Hills Refinery plume
Description: Plume of pollution from refinery extends 1.5 miles to Mississippi River; 4.1 million gallons of wastes removed so far.
Description: Narrow plume of groundwater tainted with dry-cleaner chemicals migrating toward Vermillion River, a trout stream.
Pockets of chemical-laden water percolate beneath the metro area. These 20 plumes of pollution are the legacy of decades of industrial waste disposal by private companies and government. Some communities now use special filtration for every drop of drinking water.
Poll: How do you feel about the decision to reinstate Adrian Peterson?