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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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USGS Water-Year Summary 2024
405315098304302 11N 11W 25CC2 Alda
High Plains aquifer
Sand and Gravel Deposits
Sand and Gravel Deposits
LOCATION - Lat 40°53'16.70", long 98°30'42.86" referenced to North American Datum of 1983, in SW 1/4 SW 1/4 sec.25, T.11 N., R.11 W., Hall County, NE, Hydrologic Unit 10200103, 1.0 mi north and 2.0 mi west of Alda.
REVISIONS HISTORY - WDR-US-2007: 2005-2006 (Extremes for Period of Record).
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 65 ft. Upper casing diameter 6 in; top of first opening undefined, bottom of last opening undefined.
DATUM - Land-surface datum is 1,923.4 ft above North American Vertical Datum of 1988. Measuring point: MP is a mark on top of casing, 2 ft above land-surface datum, Oct. 5, 1976 to Apr. 13, 2017; Surveyed MP height is mark on edge of pvc casing, 2.01 ft above land-surface datum, Apr. 13, 2017 to present.
PERIOD OF RECORD - April 1977 to current year.
REMARKS - Replacement for 405315098304301, local number 11N 11W 25°CC, period of record October 1946 to November 1977. Water levels in wells affected by pumping from nearby wells during irrigation season.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 10.75 feet below land surface datum, July 15, 1999; lowest, 25.98 feet below land surface datum, August 31, 1981.
