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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
441759103261203 Tilford 3 4N 6E19AABA3
Paleozoic aquifers
Minnekahta Limestone
Minnekahta Limestone
LOCATION - Lat 44°17'59.9", long 103°26'12.3" referenced to North American Datum of 1983, in NW 1/4 NE 1/4 NE 1/4 sec.19, T.4 N., R.6 E., Meade County, SD, Hydrologic Unit 10120111, Latitude 44 17 59.7 Longitude 103 26 12.2 Land-net location NWNENEsec. 19,T. 4N,R. 6E Hydrologic unit code 10120111 At W. Tilford exit.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 180 ft. Upper casing diameter 2 in; top of first opening 131 ft, bottom of last opening 180 ft.
DATUM - Land-surface datum is 3,639.2 ft above North American Vertical Datum of 1988. Measuring point: MP alt assigned same value as site alt for AQ migration (7/2020), 0 ft above land-surface datum, Aug. 22, 1995 to Dec. 20, 1995; Top of steel casing, 1.8 ft above land-surface datum, Dec. 19, 1995 to present.
PERIOD OF RECORD - October 1999 to current year.
GAGE - Satellite data collection platform and submersible transducer, 60 minute recording interval.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 5.99 ft above land surface datum (pressure head), May 26, 2011; lowest water level, 57.94 ft below land surface datum, March 23, 2006.
