USGS Water-Year Summary 2022
383403085352601 CLARK 21 (CK 21)
LOCATION - Lat 38°34'03", long 85°35'26" referenced to North American Datum of 1983, Clark County, IN, Hydrologic Unit 05140101,
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 62 ft. Upper casing diameter 10 in; top of first opening 48 ft, bottom of last opening 62 ft.
DATUM - Land-surface datum is 685 ft above National Geodetic Vertical Datum of 1929. Measuring point: TWO NOTCHES FILED ON CASING, 1.60 ft above land-surface datum, Sep. 28, 2017 to present.
PERIOD OF RECORD - November 28, 2017 to current year.
GAGE - Pressure Transducer.
EXTREMES FOR PERIOD OF RECORD -
Highest water level, 39.52 ft below land-surface datum, June 21, 2019. Lowest, 46.69 ft below land-surface datum, January 13, 2020.