Is the investigation in Downers Grove related to the ongoing investigation in Lisle?
The Illinois EPA is approaching the groundwater investigation in Downers Grove as a separate investigation. We have no information so far to connect it to groundwater contamination in Lisle. The results of two rounds of sampling in Downers Grove (July and Sept. 2001) show the presence of up to five chemicals, rather than primarily one chemical, trichloroethylene (TCE), found in the Lisle study.