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Water-Year Summary for Site USGS 11169860

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
  • For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
  • For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
  • For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
  • Not all sites have reports available for every water year.
Available Parameters
00060 Discharge(Mean)  

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

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USGS Water-Year Summary 2022
LOCATION - Lat 37°07'23", long 121°33'06" referenced to North American Datum of 1927, in SW 1/4 SE 1/4 sec.29, T.9 S., R.4 E., Santa Clara County, CA, Hydrologic Unit 18050003, on right bank, 2000 ft below Coyote Reservoir Dam, and 4.1 mi northeast of San Martin.
DRAINAGE AREA - 120 mi².  
REVISIONS HISTORY - Discharge for the period Feb. 16, 2019, to Mar. 21, 2019, was revised on Sep. 9, 2019, based on changes to the stage-discharge rating.
PERIOD OF RECORD - November 28, 2017 to current year.  CHEMICAL DATA: March 1987 to August 1987.
GAGE - Water-stage recorder. Datum of gage is 680.0 ft above NGVD of 1929.
REMARKS - Flows regulated by Coyote Reservoir 0.44 mi upstream of gage, usable capacity 23,244 acre-ft.  Flow from the gage empties into Anderson Reservoir, which has a capacity of 90,373 acre-ft.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 758 ft³/s, Feb 16, 2019, gage height, 7.07 ft; minimum daily, 1.37 ft³/s, Feb. 9, 2021.