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PFC level drops in Mississippi River but remains higher near 3M-Cottage Grove plant

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The presence of a 3M-produced chemical has declined in the Mississippi River southeast of St. Paul but the pollutant was found at significantly higher rates downstream of the company's Cottage Grove plant.


The Minnesota Pollution Control Agency announced this week that it detected less perfluorooctane sulfate (PFOS) in the river between St. Paul and Cottage Grove, compared to similar tests conducted in 2009.

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Scott Wente
Scott Wente has been editor at the South Washington County Bulletin since 2011. He worked as a reporter at other Forum Communications newspapers from 2003 to 2011. He is a graduate of the University of Wisconsin-River Falls.
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