USGS Water-Year Summary for Site 10351700

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	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00060 Discharge(Mean)
	00095 Specific cond at 25C(Max.,Min.,Mean)

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Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

10351700 Truckee River Near Nixon, NV

LOCATION - Lat 39°46'38.54", long 119°20'15.08" referenced to North American Datum of 1983, in SW 1/4 NW 1/4 sec.18, T.22 N., R.24 E., Washoe County, NV, Hydrologic Unit 16050103, in Pyramid Lake Indian Reservation, on left bank, 1.0 mi upstream from Numana Dam, 4 mi south of Nixon, and at mi 9.42 upstream from Marble Bluff Dam.

DRAINAGE AREA - 1,827 mi².

REVISIONS HISTORY - WDR NV-83-1: 1980 (monthly runoff).

SURFACE-WATER RECORDS

PERIOD OF RECORD - Oct. 1957 to current year. Records kept by Federal Court Watermaster Apr. to Jun. 1926, May 1928 to Sep. 1957 at site 1.0 mi downstream (Truckee River below Pyramid Dam, near Nixon, NV) not equivalent, but would be equivalent by adding flow of Indian Canal, both of which are available in files of Federal Court Watermaster. Currently, these records are kept only at times of diversion to the canal. At other times, the records are equivalent.

GAGE - Water-stage recorder. Elevation of gage is 3,940 ft above National Geodetic Vertical Datum of 1929, from topographic map.

REMARKS - Flow regulated by Lake Tahoe (station 10337000), Prosser Creek (station 10340300), Stampede (station 10344300) and Boca (station 10344490) Reservoirs, other lakes, powerplants, and many diversions for irrigation. Truckee Canal often diverts much of the flow at Derby Dam, about 25 mi upstream, out of basin to Lahontan Reservoir (station 10312100). Several diversions for irrigation between station and Truckee Canal. One irrigation canal diverts between station and mouth of river. 10/01/2013-09/30/2014: Records good except for estimated daily discharges, which are poor. 10/01/2014-09/30/2015: Records good except for estimated daily discharges, which are poor. 10/01/2015-09/30/2016: Records fair except for estimated daily discharges, which are poor. 10/01/2016-09/30/2017: Records fair. 10/01/2017-09/30/2018: Records fair except for estimated discharges, which are poor. 10/01/2018-09/30/2019: Records good except for estimated discharges, which are poor. 10/01/2019-09/30/2020: Records good. 10/01/2020-09/30/2021: Records good except for estimated discharges, which are poor.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 21,200 ft³/s, Jan. 3, 1997, gage height, 15.28 ft; minimum daily, 3.3 ft³/s, Jul. 9, 1991.

WATER-QUALITY RECORDS

PERIOD OF RECORD - Water years 1960 to current year.

PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: May 1980 to Sep. 1983; Aug. 1993 to current year. WATER TEMPERATURE: May 1980 to Sep. 1983, Jul. 1988 to current year.

INSTRUMENTATION - Specific conductance recorder, Aug. 1993 to current year, four times per hour. Water temperature recorder, Jul. 1988 to Aug. 1992, hourly; Sep. 1992 to current year, four times per hour.

EXTREMES FOR PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Maximum daily, 1,350 microsiemens/cm at 25°C, Oct. 31, Nov. 1, 1994; minimum daily, 74 microsiemens/cm at 25°C, Apr. 12, 1983. WATER TEMPERATURE: Maximum daily, 30.0°C, Jul. 10, 1991; minimum daily, freezing point on many days during winter months of most years.