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Water-Year Summary for Site 09415250

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00060 Discharge(Mean)  

Water year 2019: 2019-10-01 to 2020-09-30
 

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USGS Water-Year Summary 2019
09415250 Virgin River Above Lake Mead Near Overton, NV
LOCATION - Lat 36°30'47.70", long 114°20'09.53" referenced to North American Datum of 1983, in SW 1/4 NE 1/4 sec.25, T.16 S., R.68 E., Clark County, NV, Hydrologic Unit 15010005, in Lake Mead National Recreation Area, on left bank, 4.2 miles (5.6 river miles) upstream of Lake Mead, and 4 mi southeast of Overton, NV.
DRAINAGE AREA - 5,929 mi².
REVISIONS HISTORY - Elevation of gage from beginning of record to 10/22/2018 was 1,210 ft above National Geodetic Vertical Datum of 1929, from topographic map and was revised on 10/22/2018, based on OPUS S level one survey.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Dec. 1994 to current year.
GAGE - Water-stage recorder. Elevation of gage is 1,162.08 ft above North American Vertical Datum of 1988, from level one OPUS S survey. Gage at various locations due to declining Lake Mead levels.
REMARKS - 10/01/2013-09/30/2014: Records poor.  10/01/2014-09/30/2015: Records poor.  10/01/2015-09/30/2016: Records poor.  10/01/2016-09/30/2017: Records poor.  10/01/2017-09/30/2018: Records poor.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 30,600 ft³/s, Dec 22, 2010, gage height, 26.33 ft, no flow many days.