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3M and PFC groundwater contamination in Minnesota
Kirsti Marohn
Collegeville, Minn.

Minnesota tightens rules on 'forever' chemical in drinking water

Keith Rapp has an elaborate filtering system to keep PFCs out of his water.
State health officials use scientific research to set what are known as health-based advisory values for a variety of chemicals at levels that are likely to pose little or no risk to human health.
Judy Griesedieck for MPR News File

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