USGS Water-Year Summary 2024
405118099514901 10N 22W 8BCBB1-Site7-20
High Plains aquifer
Sand and Gravel Deposits
LOCATION - Lat 40°51'18.59", long 99°51'49.07" referenced to North American Datum of 1983, in NW 1/4 SW 1/4 NW 1/4 sec.08, T.10 N., R.22 W., Dawson County, NE, Hydrologic Unit 10200101,
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 20 ft. Upper casing diameter 2 in; top of first opening 15 ft, bottom of last opening 20 ft.
DATUM - Land-surface datum is 2,464.27 ft above North American Vertical Datum of 1988. Measuring point: Top of casing, 3.0 ft above land-surface datum, Mar. 29, 2010 to present.
PERIOD OF RECORD - July 10, 2014 to present.
EXTREMES FOR PERIOD OF RECORD - Highest water level, .17 feet above land surface datum, July 09, 2019; lowest, 11.97 feet below land surface datum, February 11, 2023.