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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.
USGS Water-Year Summary 2024
11162753 San Mateo Creek below Lower Crystal Springs Reservoir, near San Mateo, CA
LOCATION - Lat 37°31'46", long 122°21'30" referenced to North American Datum of 1983, San Mateo County, CA, Hydrologic Unit 18050004, in Pulgas Land Grant, on left bank at footbridge, 0.22 mi downstream of Crystal Springs Dam, 0.45 mi upstream of Polhemus Creek, and 2.8 mi southwest of San Mateo.
DRAINAGE AREA - 29.8 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - September 2008 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 146.31 ft above NAVD of 1988.
REMARKS - Flow regulated by Lower Crystal Springs Reservoir 0.22 mi upstream of gage, usable capacity, 57,910 acre-ft.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 587 ft³/s, Jan. 15, 2015, gage height, 7.68 ft; minimum daily, 0.02 ft³/s, May 20, 22 2011.
WATER-QUALITY RECORDS
PERIOD OF RECORD -
CONTINUOUS WATER-QUALITY DATA:
WATER TEMPERATURE: Water years September 2008 to current year.
INSTRUMENTATION - Water-quality monitor since Sept. 12, 2008.
