USGS Water-Year Summary for Site 10336645

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	Available Parameters
	00010 Temperature, water(Mean,Max.,Min.,Med.)
	00060 Discharge(Mean)
	63680 Turbidity, Form Neph(Min.,Max.,Med.) [(2)]

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

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USGS Water-Year Summary 2023

10336645 General Creek near Meeks Bay, CA

LOCATION - Lat 39°03'07", long 120°07'03" referenced to North American Datum of 1927, in NE 1/4 NE 1/4 sec.20, T.14 N., R.17 E., El Dorado County, CA, Hydrologic Unit 16050101, on right bank, 200 ft upstream from State Highway 89, 0.4 mi upstream from Lake Tahoe, and 1.1 mi north of Meeks Bay.

DRAINAGE AREA - 7.44 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD - July 1980 to current year.

GAGE - Water-stage recorder. Datum of gage is 6,250.38 ft above NGVD of 1929.

REMARKS - No known diversion or regulation upstream from station. See schematic diagram of Truckee River Basin available from the California Water Science Center.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 861 ft³/s, Jan. 8, 2017, gage height, 5.93 ft, maximum gage height, 7.86 ft, Jan. 2, 1997, backwater from plugged culvert, from rating curve extended above 180 ft³/s, on basis of computation of flow through culvert; minimum daily, 0.29 ft³/s, July 28, Aug. 15, 1994.

WATER-QUALITY RECORDS

PERIOD OF RECORD -

DISCRETE WATER-QUALITY DATA:
CHEMICAL DATA: Water years 1992 to current year.
SEDIMENT RECORDS: Water years October 1980 to 1989.

CONTINUOUS WATER-QUALITY DATA:
SPECIFIC CONDUCTANCE: Water years October 1980 to September 1983.
WATER TEMPERATURE: Water years October 1980 to September 1992, January 2015 to current year.
SUSPENDED-SEDIMENT DISCHARGE: Water years October 1980 to September 1992.
TURBIDITY: Water years January 2015 to current year.

REMARKS - In October 1992, station was incorporated into the expanded Lake Tahoe Interagency Monitoring Program to monitor tributary contributions of nutrients and sediment to Lake Tahoe. Nutrient samples were analyzed by the University of California, Davis, Tahoe Environmental Research Center (previously the Tahoe Research Group). The original hydrazine method used to determine nitrate plus nitrite concentrations (parameter codes 000631 and 000630) was found to have interferences caused by calcium and magnesium in stream water samples. The current laboratory method uses pyrophosphate to remove interferences caused by calcium and magnesium. This method has replaced the original hydrazine method as of December 2008. Parameter code 00623, filtered ammonia plus organic nitrogen (dissolved Kjeldahl nitrogen) was discontinued in April 2011. Water temperature data for September 1997 were not published but are available from the U.S. Geological Survey in Carson City, NV. Prior to October 2011, quality assurance blank samples associated with the entire Lake Tahoe Interagency Monitoring Program were listed under station numbers 103366769999 and 103367309999. Starting October 2011, quality assurance blanks are included with the station number where the blanks are processed.