LOCATION.-- Lat 41°50'35", long 89°17'59" (NAD of 1927), in SE1/4NW1/4NW1/4 sec. 1, T.21 N., R10 E., Hydrologic Unit 07090005, Well 3 (Illinois Environmental Protection Agency 11562), within Franklin Grove. Owner: Village of Franklin Grove.

AQUIFER.-- Dolomite and sandstone of Ordovician through Cambrian age.

WELL CHARACTERISTICS.-- Diameter unrecorded, depth 769 ft, cased to 155 ft, open hole, drilled, public supply.

PERIOD OF RECORD.--

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