LOCATION.-- Lat 41°15'36", long 90°36'30" (NAD of 1927), in SW1/4NW1/4SW1/4 sec. 27, T.15 N., R.2 W., Hydrologic Unit 07080104, Well 1 (Illinois Environmental Protection Agency 31820), within Matherville. Owner: Village of Matherville.

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

WELL CHARACTERISTICS.-- Diameter unrecorded, depth 604 ft, cased to 319 ft, open hole, drilled, public supply.

PERIOD OF RECORD.--

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