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Water-Year Summary for Site 10336674

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Available Parameters
00060 Discharge(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
10336674 Ward Creek below Confluence, near Tahoe City, CA
LOCATION - Lat 39°08'27", long 120°12'40" referenced to North American Datum of 1927, in SE 1/4 SE 1/4 sec.16, T.15 N., R.16 E., Placer County, CA, Hydrologic Unit 16050101, Tahoe National Forest, on left bank, 0.1 mi downstream from confluence with unnamed tributary, 3.2 mi west of William Kent Campground, and 4.8 mi southwest of Tahoe City.
DRAINAGE AREA - 4.96 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1991 to September 2011, November 7, 2014 to current year (stage only, seasonal).
GAGE - Water-stage recorder. Elevation of gage is 6,600 ft above NGVD of 1929, from topographic map.
REMARKS - No storage or diversion upstream from station. See schematic diagram of Truckee River Basin available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 1,220 ft³/s, Jan. 1, 1997, gage height, 8.85 ft, from crest stage gage; no flow for some days in most years.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Water year 1993 to September 2011 (discontinued).
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 Research Group. Quality assurance samples associated with the entire Lake Tahoe Interagency Monitoring Program are listed under station numbers 103366769999 and 103367309999. The original hydrazine method used to determine nitrate plus nitrite concentrations (parameters 00631 and 00630) was found to have interferences caused by calcium and magnesium in stream water samples. The nitrate plus nitrite concentrations under parameters 99911 and 99910 are based on a laboratory method that 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.