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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.
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USGS Water-Year Summary 2024
11046300 San Mateo Creek near San Clemente, CA
LOCATION - Lat 33°28'15", long 117°28'20" referenced to North American Datum of 1927, in SE 1/4 NE 1/4 sec.23, T.8 S., R.6 W., San Diego County, CA, Hydrologic Unit 18070301, on Camp Joseph H. Pendleton Naval Reservation, on left bank, 0.4 mi downstream from mouth of Devil Canyon, and 8.6 mi northeast of San Clemente.
DRAINAGE AREA - 80.8 mi².
REVISIONS HISTORY - WSP 1928: Drainage area. Period of February 28 to March 4, 2014 was revised on September 17, 2015.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1952 to September 1967, October 1993 to current year. Discharge records for October 1967 to September 1977 and October 1989 to September 1993 available in files of U.S. Marine Corps at Camp Pendleton.
GAGE - Water-stage recorder. Datum of gage is 402.44 ft above NAVD of 1988.
REMARKS - No regulation or diversion upstream from station.
EXTREMES OUTSIDE PERIOD OF RECORD - Maximum discharge, 9,240 ft³/s, gage height, 11.12 ft, Jan. 25, 1969.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 12,500 ft³/s, Feb. 23, 1998, gage height, 12.83 ft, on basis of slope-area measurement of peak flow; no flow for several days in most years.
