LOCATION.-- Lat 41°39'20", long 90°04'44" (NAD of 1927), in NE1/4NW1/4NE1/4 sec. 7, T.19 N., R.4 E., Hydrologic Unit 07090005, Well 1 (Illinois Environmental Protection Agency 11892), within Erie. Owner: Village of Erie.

AQUIFER.-- Dolomite of Devonian? and Silurian age.

WELL CHARACTERISTICS.-- Diameter unrecorded, depth 567ft, cased to 181 ft, open hole, drilled, public supply.

PERIOD OF RECORD.--

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