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Lisle Groundwater Contamination Investigation
During the late summer and early fall of 2000, a number of residents with private wells in an eastern Lisle neighborhood had their wells sampled by a private environmental contractor. Trichloroethylene (TCE) had been detected in at least 20 wells, and it had been found in excess of the U.S. Environmental Protection Agency Drinking Water Standard for public water supplies in six wells. The concentrations ranged from just above the detection limit to almost 20 parts per billion in one well.
- Fact Sheet 1 - October 2001