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USGS Water-Year Summary 2024
380626087344401 Vanderburgh 7 - VA 7.
Pennsylvanian aquifers
Patoka Formation
Patoka Formation
LOCATION - Lat 38°06'26", long 87°34'44" referenced to North American Datum of 1927, in NE 1/4 NW 1/4 NW 1/4 sec.07, T.5 S., R.10 W., Vanderburgh County, IN, Hydrologic Unit 05120113, on north side of Salem United Church of Christ 0.5 mi north of Darmstadt.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 70 ft. Upper casing diameter 6 in; top of first opening 39.3 ft, bottom of last opening 70 ft.
DATUM - Land-surface datum is 475.22 ft above North American Vertical Datum of 1988. Measuring point: TOP OF FLOOR OF SHELTER, 4.04 ft above land-surface datum, Jun. 1986 to present. Top of floor of shelter, 4.04 ft above land-surface datum.
Prior to Feb. 2017, land-surface datum: 475.35 ft above National Geodetic Vertical Datum of 1929.
PERIOD OF RECORD - June 1986 to current year.
GAGE - Water-level recorder.
REMARKS - Records good from 11/06/2014 - 09/30/2015. Good from 10/01/2015 - 11/03/2016. Good from 11/04/2016 - 08/17/2017.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 19.16 ft below land-surface datum, March 1, 2007; lowest, 25.06 ft below land-surface datum, Oct. 29, 1988.
