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Baytown Township Ground Water Plume
The Baytown Township Groundwater Plume is a Superfund site located east of the village of Lake Elmo, Minnesota, United States. The plume extends into Baytown and West Lakeland Townships and continues eastward approximately four miles to the St. Croix River. Baytown Township is a rapidly developing rural/suburban residential area on the eastern edge of the Minneapolis-St. Paul metropolitan area. The contaminated groundwater is primarily in the Prairie du Chien-Jordan aquifer, which is the major source of drinking water for many residents in the area through private and residential wells. The Lake Elmo Airport is located near the western end of the plume and is administered by the Metropolitan Airports Commission (MAC). An estimated 8,000 people live in the area; 80 percent of the residents use private wells for their water supply.
==Threats and contaminants==
There are two volatile organic compounds of concern in the groundwater contaminant plume - trichloroethylene (TCE) and carbon tetrachloride. The Minnesota Pollution Control Agency (MPCA) believes that use of the chlorinated solvent TCE at a former metal working facility at the location of the Hagberg Country Market was the major source of site ground water contamination. The use of TCE at the Lake Elmo airport likely also have caused some of the TCE groundwater contaminant plume. On the north side of the plume there are a few former grain storage bins which MPCA believes were the potential source of carbon tetrachloride that was previously detected in that area of the plume.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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