USGS Water-Year Summary 2021
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.
PERIOD OF RECORD - September 2008 to current year.
GAGE - Water-stage recorder and crest-stage gage. Elevation of gage is 160 ft above NGVD of 1929, from topographic map.
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.
PERIOD OF RECORD
CONTINUOUS WATER-QUALITY DATA:
WATER TEMPERATURE: Water years September 2008 to current year.
INSTRUMENTATION - Water-quality monitor since Sept. 12, 2008.