USGS Water-Year Summary 2025
403516101560601 7N 41W11DAA 1 Lamar
High Plains aquifer
Ogallala Formation
LOCATION - Lat 40°35'16", long 101°56'06" referenced to North American Datum of 1927, in NE 1/4 NE 1/4 SE 1/4 sec.11, T.7 N., R.41 W., Chase County, NE, Hydrologic Unit 10250005,
REVISIONS HISTORY - WDR-US-2007: 2005-2006 (Extremes for Period of Record).
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 192 ft. Upper casing diameter 5 in; top of first opening 182 ft, bottom of last opening 192 ft.
DATUM - Land-surface datum is 3,506 ft above National Geodetic Vertical Datum of 1929. Measuring point: MP is top of PVC casing, 1.60 ft above land-surface datum, Sep. 27, 1973 to present.
PERIOD OF RECORD - Sept. 1973 to November 28, 2016.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 56.92 feet below land surface datum, September 27, 1973; lowest, 128.84 feet below land surface datum, August 16, 2016.