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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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USGS Water-Year Summary 2024
364650114432001 219 S13 E65 28BDAC1
Basin and Range carbonate-rock aquifers
Blue Springs Shale Member of Matfield Shale
Blue Springs Shale Member of Matfield Shale
LOCATION - Lat 36°46'50.64", long 114°43'21.86" referenced to North American Datum of 1983, in NW 1/4 SE 1/4 NW 1/4 sec.28, T.13 S., R.65 E., Clark County, NV, Hydrologic Unit 15010012,
REVISIONS HISTORY - WDR NV-11-1: 2013; WDR NV-12-1: 2013.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 478 ft. Upper casing diameter 10 in; top of first opening 17 ft, bottom of last opening 478 ft.
DATUM - Land-surface datum is 2,187.27 ft above North American Vertical Datum of 1988. Measuring point: Top of casing, 2.5 ft above land-surface datum, Dec. 30, 1985 to Sep. 12, 1987; Top of casing yellow paint on west side, 1.3 ft above land-surface datum, Sep. 11, 1987 to present. The NAVD of 1988 datum was determined by a level 2 GNSS survey (Reference Frame NAD_83 (2011) (EPOCH:2010.0000), GEOID18) by USGS on February 26, 2020 and tied to RM2. Prior to February 26, 2020, the land-surface datum was 2,185.9 ft above NGVD of 1929 as determined via level by USGS on February 6, 1985.
PERIOD OF RECORD - 1980 to current year.
EXTREMES FOR PERIOD OF RECORD - Highest water-level depth below land surface recorded, 390.21 ft, Dec. 30, 1985; lowest water-level depth below land surface recorded, 396.83 ft below land surface datum, Sep. 21, 2021.
