fridley commons park well field

61ST AVENUE, NE & 7TH STREET, NE

The Fridley Commons Park Well Field Site (Site) is located in the city of Fridley, Minnesota. The Site is located approximately one mile east of the Mississippi River, one mile south of Rice Creek, and approximately 0.2 miles northeast of Moore Lake. The Site is about 50 acres in area. Surrounding land use is largely residential along with commercial/industrial businesses. The City of Fridley receives its municipal water supply from 13 municipal wells, 8 of which are located within the park along with a water treatment plant. The water supply provides water to a population of about 29,000 people. The Fridley municipal water supply system is also supplemented by an interconnection to the New Brighton municipal water system. Primarily during the winter months, the interconnection provides excess water from the water treatment system installed at the Twin Cities Army Ammunition Plant. Several geologic studies have been conducted in Fridley and the surrounding communities for environmental purposes. These studies have found that there are several aquifer systems in the region surrounding the Site. Of the eight municipal wells located within the park, Municipal Well Nos. 6, 7, 8, and 9 historically have been impacted by low levels of volatile organic contaminants (VOCs) consisting primarily of trichloroethylene (TCE) and are withdrawing water from the Prairie du Chien Jordan Aquifer (PdCJ). In addition to TCE, breakdown products of TCE (e.g. di-chloroethylene and vinyl chloride) have also been detected intermittently. The other four municipal wells (Municipal Well Nos. 2, 3, 4, and 5) are withdrawing water from the Mt. Simon-Hinckley aquifer and have not indicated evidence of contamination. The source of contamination which had impacted the well field has never been identified. The city has been monitoring groundwater water quality on a regular basis. Drinking water with contaminant concentrations below the maximum contaminant level (MCL) do not pose unacceptable risks to public health from the exposure to TCE.

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