Click
to
hide
Water-Year
Summary
instructions
and
information
- 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
11048600 Bonita Creek at Irvine, CA
LOCATION - Lat 33°38'42", long 117°51'37" referenced to North American Datum of 1927, Orange County, CA, Hydrologic Unit 18070204, in San Joaquin Grant, on right bank, at downstream side of unnamed service road bridge, 0.45 mi upstream from mouth, at Irvine.
DRAINAGE AREA - 5.39 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - July 2001 to current year.
GAGE - Water-stage recorder, concrete control, and crest-stage gage. Datum of gage is 34.50 feet above NAVD of 1988.
REMARKS - No diversion upstream from station. Slight regulation from small storage reservoir upstream from station. Irrigation return flow can cause low-flow fluctuations in discharge at times.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 3,710 ft³/s, Oct. 27, 2004, gage height, 14.89 ft, from rating curve extended above 200 ft³/s, on basis of critical-depth computation; no flow at times in some years.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Water years 2002 to 2012.
SEDIMENT DATA: Water years 2002 to 2012.
