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Water-Year Summary for Site 11162735

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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 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
11162735 San Mateo Creek above Junction Box at Dam 1 near Hillsborough, CA
LOCATION - Lat 37°33'25.1", long 122°25'05.7" referenced to North American Datum of 1983, San Mateo County, CA, Hydrologic Unit 18050004, on right bank, at San Mateo Dam # 1, 250 ft upstream of junction box, and 2.5 mi southwest of Hillsborough.
DRAINAGE AREA - 2.10 mi².  
SURFACE-WATER RECORDS
PERIOD OF RECORD - March 2022 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 648.36 ft above NAVD of 1988.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 390 ft³/s, Dec. 31, 2022, gage height, 4.00 ft.  Minimum daily discharge, no flow, many days. No peaks occurred outside period of published record during the 2022