LOCATION.-- Lat 42°07'39", long 89°13'29" (NAD of 1927), in SW1/4NE1/4NW1/4 sec. 32, T.25 N., R.11 E., Hydrologic Unit 07090005, Well 3 (Illinois Environmental Protection Agency 11778), within Byron. Owner: City of Byron.

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

WELL CHARACTERISTICS.-- Diameter unrecorded, depth 740 ft, cased to 250 ft, open hole, drilled, public supply.

PERIOD OF RECORD.--

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