LOCATION.-- Lat 41°31'52", long 88°34'28" (NAD of 1927), Hydrologic unit 07120007, Village of Newark, Well 3. Owner: Village of Newark. | |
AQUIFER.-- Ancell and Prarie du Chien groups of Ordovician age. | |
WELL CHARACTERISTICS.-- Drilled artesian well, diameter 10 in., depth 336 ft, cased to 211 ft, open hole. | |
PERIOD OF RECORD.-- | |
GROUND-WATER LEVELS: February 1993 to September 1997 (fragmentary). | |
INSTRUMENTATION.-- Manual steel-tape measurement made every 2 months. | |
DATUM.-- Land-surface datum is 690 ft above NGVD of 1929. Measuring point: Access hole at base of pump, 1.7 ft above land-surface datum. | |
EXTREMES FOR PERIOD OF RECORD.-- | |
GROUND-WATER LEVELS: Highest water level measured, 82.64 ft below land-surface datum, June 3, 1993; lowest measured, 85.69 ft below land-surface datum, Feb. 4, 1997. | |