The Beloit Corporation site is located north of Rockton in Winnebago County, Illinois. The site includes the former Beloit Corporation manufacturing plant as well as residential areas and other industrial land uses. Plant operations contaminated soil and groundwater with solvents, primarily trichloroethene (TCE). Contaminated groundwater migrated off the facility and affected residential water wells in the Blackhawk Acres subdivision east of the site. As part of the site�s remedy, groundwater treatment and monitoring are ongoing.