USGS Water-Year Summary 2024
330855092505601 18S17W22BDD1
Mississippi embayment aquifer system
Sparta Sand
LOCATION - Lat 33°08'55.91", long 92°50'56.48" referenced to North American Datum of 1983, in SE 1/4 SE 1/4 NW 1/4 sec.22, T.18 S., R.17 W., Union County, AR, Hydrologic Unit 08040206, and near Shuler.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 705 ft. Upper casing diameter 10 in; top of first opening 605 ft, bottom of last opening 705 ft.
DATUM - Land-surface datum is 283 ft above North American Vertical Datum of 1988. Measuring point: Top of casing, 1.1 ft above land-surface datum, Apr. 3, 1968 to present; UCCD MP, 1.2 ft above land-surface datum, May. 13, 1998 to present.
PERIOD OF RECORD - Apr 1968 to Sep 1991, Oct 1993 to Jul 1995, and Jul 1996 to current year.
GAGE - Continuous transducer with data logger.
COOPERATION - Arkansas Natural Resources Commission.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 293.39 ft. below land surface datum, Jan. 1, 2022; lowest water level, 397.38 ft. below land surface datum, Mar 2, 1999.