State Water Resources Research Institute Program

Project ID: 2009MN253B
Title: Urban Stormwater Inputs of Perfluorochemicals
Project Type: Research
Start Date: 3/01/2009
End Date: 2/28/2011
Congressional District: 5
Focus Categories: Non Point Pollution, Sediments, Solute Transport
Keywords: Perfluorochemicals, Urban Stormwater, Source Apportionment
Principal Investigator: Simcik, Matt Francis (University of Minnesota)
Federal Funds: $ 50,000
Non-Federal Matching Funds: $ 81,292
Abstract: Perfluorochemicals (PFCs) have been used in a variety of industrial polymers and commercial products from Teflon to Scotchgard. Despite the phase-out of these chemicals from production, they continue to cause environmental and human health concern. In 2007, several Twin Cities metropolitan lakes were labeled impaired for contamination with a suite of perfluorochemicals, primarily perfluorooctane sulfonate (PFOS) in fish. While Minnesota is home to the 3M corporation that produced and disposed of many of these chemicals, many of the lakes listed as impaired have no connection to 3M's production or disposal. Because many of these PFCs were used in commercial products, wastewater is another potential source to surface waters, however, none of these lakes receives direct wastewater discharge. We hypothesize that a significant source of PFCs to surface waters is urban stormwater, which receives PFCs from commercial/industrial/residential sourcs within its watershed. Therefore, we propose to sample temporal composites of urban stormwater integrated over storm events and analyze them for a suite of PFCs. These PFC concentrations will then be combined with detailed land-use information for the watershed to model the source apportionment of PFCs to urban stormwater. The objectives of this study are to: 1. quantify the magnitude of PFCs loadings from urban stormwater; 2. identify unique land-use characteristics that lead to PFC contamination; and 3. determine the efficacy of suspended sediment removal as a technique for removing PFCs from stormwater.

Progress/Completion Report, 2009, PDF
Progress/Completion Report, 2010, PDF

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