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Water-Year Summary for Site 11048200

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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
11048200 Agua Chinon Wash near Irvine, CA
LOCATION - Lat 33°40'44", long 117°42'48" referenced to North American Datum of 1927, Orange County, CA, Hydrologic Unit 18070204, in Lomas de Santiago Grant, on right bank, 4.0 mi east of Irvine, and 4.8 mi upstream from confluence with San Diego Creek.
DRAINAGE AREA - 2.85 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - July 2002 to December 2, 2015 (discontinued).
GAGE - Water-stage recorder and concrete control. Elevation of gage is 440 ft above NGVD of 1929, from topographic map. Prior to June 9, 2014, at site 1.2 mi downstream at different datum.
REMARKS - No diversion upstream from station. Irrigation return flow can cause low-flow fluctuations in discharge at times.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 382 ft³/s, Feb. 19, 2005, gage height, 2.95 ft; no flow for many days in most years.
WATER-QUALITY RECORDS
PERIOD OF RECORD -

DISCRETE WATER-QUALITY DATA:
SEDIMENT DATA: Water years 2004 to current year.
REMARKS - No sediment samples collected in the 2013 Water Year.