LOCATION.-- Lat 39°43'38", long 90°54'20" (NAD of 1927), in NE1/4SE1/4SW1/4 sec. 7, T.4 S., R.4 W., Hydrologic Unit 07110004, Well 1 (Illinois Environmental Protection Agency 52062), within Baylis. Owner: Village of Baylis.

AQUIFER.-- Limestone of Mississippian age.

WELL CHARACTERISTICS.-- Diameter 8 inch, depth 429 ft, cased to 272 ft, open hole, drilled, public supply.

PERIOD OF RECORD.--

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