LOCATION.-- Lat 41°24'21", long 90°33'45" (NAD of 1927), in NW1/4NE1/4SW1/4 sec. 1, T.16 N., R.2 W., Hydrologic Unit 07120004, Well 1 (Illinois Environmental Protection Agency 31889), within Coyne Center. Owner: Croppers Subdivision, 1st, 4th, and 5th Additions.

AQUIFER.-- Dolomite of Devonian and Silurian age.

WELL CHARACTERISTICS.-- Diameter unrecorded, depth 509 ft, cased to 153 ft, open hole, drilled, public supply.

PERIOD OF RECORD.--

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