USGS Water-Year Summary 2024
430027102311806 35N44W17DBCA6
High Plains aquifer
Arikaree Formation
LOCATION - Lat 43°00'27", long 102°31'18" referenced to North American Datum of 1927, in SW 1/4 NW 1/4 SE 1/4 sec.17, T.35 N., R.44 W., UNSPECIFIEDSD, Hydrologic Unit 10140201, 2.5 mi southeast of Pine Ridge.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 835 ft. Upper casing diameter 12 in; top of first opening 505 ft, bottom of last opening 820 ft.
DATUM - Land-surface datum is 3,299.74 ft above North American Vertical Datum of 1988. Measuring point: Top of steel casing, 2.09 ft above land-surface datum, Oct. 2, 1987 to present.
PERIOD OF RECORD - Periodic measurements by USGS Sept. 1987 to Jun. 1989. Continuous recorder Jun. 1989 to current year.
GAGE - Satellite data-collection platform, 60 minute recording interval.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 34.18 ft below land-surface datum, Feb. 25, 1998; lowest water level, 66.02 ft below land-surface datum, Aug. 26, 2006.