USGS Water-Year Summary 2024
401532085085301 Randolph 3 - RA 3
Silurian-Devonian aquifers
Silurian System
LOCATION - Lat 40°15'32", long 85°08'53" referenced to North American Datum of 1927, in NE 1/4 NE 1/4 SE 1/4 sec.23, T.21 N., R.12 E., Randolph County, IN, Hydrologic Unit 05120103, at the east edge of Purdue University Agriculture Experiment Station, about 5.5 mi north of Farmland.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 54 ft. Upper casing diameter 6 in; top of first opening 33 ft, bottom of last opening 54 ft.
DATUM - Land-surface datum is 968.4 ft above North American Vertical Datum of 1988. Measuring point: TOP OF FLOOR OF SHELTER, 3.85 ft above land-surface datum, Oct. 1, 1966 to present. Land-surface datum is 969.67 ft above National Geodetic Vertical Datum of 1929.
PERIOD OF RECORD - October 1966 to current year.
GAGE - Water-level recorder.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 7.68 ft below land-surface datum, Dec. 30, 1990; lowest, 15.32 ft below land-surface datum, Oct. 22-23, 2002.