LOCATION.-- Lat 41°55'09", long 89°03'28" (NAD of 1927), in NW1/4NE1/4NE1/4 sec. 25, T.40 N., R.1 E., Hydrologic Unit 07090005, Well 9 (Illinois Environmental Protection Agency 11943), within Rochelle. Owner: City Of Rochelle.

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

WELL CHARACTERISTICS.-- Diameter unrecorded, depth 888 ft, cased to 165 ft, open hole, drilled, public supply.

PERIOD OF RECORD.--

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