USGS Water-Year Summary 2024
440544103180001 2N 7E32ABBD City Quarry West
Paleozoic aquifers
Minnelusa Formation (Permian andPennsylvanian)
LOCATION - Lat 44°05'43.6", long 103°18'05.2" referenced to North American Datum of 1983, in NW 1/4 NW 1/4 NE 1/4 sec.32, T.2 N., R.7 E., Pennington County, SD, Hydrologic Unit 10120110, Lat. 44005'44", Long. 103018'05", NW1/4 NW1/4 NE1/4, Section 32, T2N, R7E, Rapid City, Pennington County, SD. Wells are located aproximately 300 feet west of City Springs Road in Rapid City.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 175 ft. Upper casing diameter 6.3 in; top of first opening undefined, bottom of last opening undefined.
DATUM - Land-surface datum is 3,493.78 ft above North American Vertical Datum of 1988. Measuring point: Top of steel casing, 1.45 ft above land-surface datum, Oct. 23, 1989 to present.
PERIOD OF RECORD - Feb. 1990 to current year.
GAGE - Satellite data-collection platform, 60 minute recording interval.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 7.17 ft below land surface, Jul. 19, 2019; lowest water level, 71.27 ft. below land surface, Jan. 24, 2006.