LOCATION.-- Lat 42°12'56", long 88°59'38" (NAD of 1927), in SE1/4NW1/4SW1/4 sec. 10, T.43 N., R.2 E., Hydrologic Unit 07090005, Well 2 (Illinois Environmental Protection Agency 11678), about 1 mi southeast of Rockford. Owner: Utilities Incorporated Coventry Creek Subdivision.

AQUIFER.-- Ancell Group of Ordovician age.

WELL CHARACTERISTICS.-- Diameter unrecorded, depth 530 ft, cased to 330 ft, open hole, drilled, public supply.

PERIOD OF RECORD.--

GROUND-WATER QUALITY: April 1986 (see Voelker and others, 1987); November 2001.