USGS Water-Year Summary for Site 10288500

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	Available Parameters
	00054 Reservoir storage(Obs.)
	00054 Reservoir storage(Mean) [Daily Mean]
	00062 Elevation, reservoir(Obs.)
	00062 Elevation, reservoir(Mean) [Daily Mean]

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Water year 2024: 2024-10-01 to 2025-09-30

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USGS Water-Year Summary 2024

10288500 Walker Lake Near Hawthorne, NV

LOCATION - Lat 38°40'36", long 118°46'16" referenced to North American Datum of 1927, in SE 1/4 SE 1/4 sec.27, T.10 N., R.29 E., Mineral County, NV, Hydrologic Unit 16050304, 14.5 mi northwest of Hawthorne.

DRAINAGE AREA - 4,050 mi². approximately.

SURFACE-WATER RECORDS

PERIOD OF RECORD - Prior to Oct. 2004 monthend elevations. Aug. 1928 to current year. Occasional readings prior to Aug. 1928.

GAGE - Water-stage recorder. Datum of gage is 4,099.72 ft above National Geodetic Vertical Datum of 1929 (Nevada Highway Dept bench mark). Prior to Dec. 6, 1978, at site 5.5 mi northwest of Hawthorne, at same datum, but based from bench mark from Hawthorne Ammunition Depot.

REMARKS - Continuous record readings are made at 15 minute intervals and can be affected by wind and from seiche movements of the lake surface. Stage-capacity relation used to compute Walker Lake storage from lake stage was changed effective October 1, 2014. The relation used prior to October 1, 2014 was from Rush, 1970 and was updated to the relation from Lopes and Smith, 2007.

EXTREMES OUTSIDE PERIOD OF RECORD - An elevation of 4,078.0 ft, adjustment of 1912, was observed Sep. 27, 1908, by U.S. Geological Survey (contents 8,622,000 acre-ft, table now in use). An elevation of about 4,083 ft for 1882 is estimated by Rush (U.S. Geological Survey Hydrologic Investigations Atlas HA-415, 1970), on the basis of bathymetric data.

EXTREMES FOR PERIOD OF RECORD - Maximum contents observed 6,955,000 acre-ft, March 13, 1928, elevation 4,051.8 ft, U.S. Bureau of Indian Affairs. Minimum recorded 911,700 acre-ft, Feb. 9, 2017, elevation 3,906.22 ft.

WATER-QUALITY RECORDS

INSTRUMENTATION - Water temperature monitor Oct. 2004 to Sep. 2005, four times per hour. Discontinued.

REMARKS - Instantaneous specific-conductance and water-temperature measurements during a site visit can be slightly outside the range of values recorded during the same day by the water-quality monitor. This presumably is due to fluctuations in conductance and temperature during the interval between periodic monitor recordings. Records represent water temperature at probe within 0.5°C.

EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum recorded, 29.5°C, Jul. 13, 2005; minimum recorded, 3.5°C, Feb. 3, 2005.