Abstract
ABSTRACTTen wells were installed to monitor the water‐table elevation and volatile organic compounds (VOCs) in ground water underlying Hastings, Nebraska. Trichloroethylene (TCE) was the most frequently detected VOC and had the highest concentration (1750 μg/1) in these monitoring wells. Perchloroethylene (PCE), 1,1‐dichloroethylcne (1,1‐DCE), 1,2‐dichloroethane (1,2‐DCA), and 1,1,1‐trichloroethane (TCA) also occurred in one or more of the monitoring wells. The vertical and areal VOC distribution in both the contaminated monitoring wells and the city's contaminated municipal wells are largely related to withdrawal caused by heavily pumped, nearby municipal and industrial wells. A computer model was used to demonstrate the impact historic site changes in high capacity well withdrawal have on the local water‐table configuration. Two sites of suspected VOC sources are designated for further investigation
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