3M and PFC groundwater contamination in Minnesota

Concern over the effects of groundwater contamination by perfluorochemicals, or PFCs, has a long history in Minnesota. Now that the state settled its lawsuit with 3M, here's a collection of MPR News coverage of this complex story.

July 20, 2011 4:00 AM

At a glance: Details of the budget bills

Final agreements on several budget bills are being made public. As the work on the remaining bills continues, MPR will add details as they are announced.

by Alex Friedrich

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May 4, 2011 9:41 AM

As walleye season opener approaches, new results from pollutant testing in area lakes

Tests of fish from 9 of Minnesota's 10 largest walleye lakes show those lakes have little or no contamination from a class of pollutants called perfluorochemicals, or PFCs. State officials say PFCs are still a problem in some Twin Cities area lakes.

by Cathy Wurzer and Tom Robertson

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May 3, 2011 10:01 AM

Tests show state's largest walleye lakes show very little PFCs

State health officials say fish tested from nine of Minnesota's 10 largest walleye lakes show those lakes have very little or no contamination from perfluorochemicals, or PFCs.

by Tom Robertson

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February 2, 2011 4:15 PM

MPCA extends comment period for 3M wastewater permit

The state of Minnesota is allowing more time for public comment on a revised permit for a wastewater treatment plant at 3M's plant in Cottage Grove.

by Stephanie Hemphill

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January 5, 2011 3:39 PM

MPCA taking comments on new 3M discharge permit

The Minnesota Pollution Control Agency is taking public comments on a new wastewater discharge permit for 3M Co.'s Cottage Grove manufacturing facility.

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December 30, 2010 8:44 AM

State files lawsuit against 3M over pollution

Minnesota Attorney General Lori Swanson has filed suit against Minnesota-based industrial giant 3M for contaminating groundwater with PFCs.

by Laura Yuen

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August 31, 2010 1:48 PM

Report: Residents exposed to PFCs unlikely to get sick

The Minnesota Department of Health says it's unlikely that people in the east metro who have been exposed to PFCs will experience adverse health effects.

by Stephanie Hemphill

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August 30, 2010 8:16 AM

3M to acquire Cogent for about $933 million

Maplewood-based 3M expects to pay nearly $1 billion for Cogent Inc., a California maker of automated systems that read fingerand palm prints.

by Martin Moylan

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June 24, 2010 1:49 PM

State to ask 3M to pay for environmental damage

The state will ask 3M to pay for environmental damage due to contamination from the company's operations in the east metro.

by Stephanie Hemphill

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April 28, 2010 4:31 PM

Study examines link between PFCs in water supply and people

The Minnesota Department of Health says contamination in the drinking water of east metro residents only partly explains the levels of PFCs in their blood.

by Stephanie Hemphill

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