LOCATION.-- Lat 41°54'55", long 88°26'40" (NAD of 1983), in NE1/4SW1/4 sec.28, T.40 N., R.7 E., Hydrologic Unit 07120007, near Elburn. Owner: Campton Township.

AQUIFER.--Sandstone of Ordovician age (Ancel Group).

WELL CHARACTERISTICS.-- Diameter 5.0 inches, depth 745 feet, cased to 445, open hole, drilled, public supply.

PERIOD OF RECORD.--

GROUND-WATER LEVELS: August, 2005.

INSTRUMENTATION.--Manual steel-tape measurements. Geophysical logs.

DATUM.--Measuring-point datum is 938 ft above NGVD of 1929 (938 ft NAVD 1988). Measuring point: Top of well casing.