USGS Water-Year Summary 2024
384949085251901 Jefferson 5 - JF 5
Silurian-Devonian aquifers
Silurian, Lower
LOCATION - Lat 38°49'50", long 85°25'17" referenced to North American Datum of 1927, in SE 1/4 NW 1/4 SW 1/4 sec.33, T.5 N., R.10 E., Jefferson County, IN, Hydrologic Unit 05120207, on Jefferson Proving Ground, 500 ft north of Airfield Road, 1,000 ft southwest of the water tower, and 2.2 mi west of main gate.
REVISIONS HISTORY - Water level from October 10, 2019 through February 19, 2020 was revised on June 3, 2020.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 200 ft. Upper casing diameter 5 in; top of first opening 36 ft, bottom of last opening 200 ft.
DATUM - Land-surface datum is 857.5 ft above National Geodetic Vertical Datum of 1929. Measuring point: TOP OF INNER WHITE PLASTIC CASING, 3.00 ft above land-surface datum, Sep. 13, 1978 to present.
PERIOD OF RECORD - March 1980 to current year.
GAGE - Water-level recorder.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 2.94 ft below land-surface datum, Dec. 17, 2001, and Jan. 15, 2007; lowest, 10.03 below land-surface datum, Nov. 30, 1999.