LOCATION.-- Lat 41°33'28", long 89°27'45" (NAD of 1927), in SE1/4NE1/4SW1/4 sec. 9, T.18 N., R.9 E., Hydrologic Unit 07130001, Well 4 (Illinois Environmental Protection Agency 11363), within Ohio. Owner: Village of Ohio.

AQUIFER.-- Glacial drift of Quaternary age.

WELL CHARACTERISTICS.-- Diameter unrecorded, depth 404 ft, cased to 390 ft, screened, drilled, public supply.

PERIOD OF RECORD.--

GROUND-WATER QUALITY: February 1986 (see Voelker and others, 1987); April 2002.