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Water-Year Summary for Site 11070270

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00060 Discharge(Mean)  

Water year 2020: 2019-10-01 to 2020-09-30

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USGS Water-Year Summary 2020
11070270 Perris Valley Storm Drain at Nuevo Road, near Perris, CA
LOCATION - Lat 33°48'04", long 117°12'19" referenced to North American Datum of 1927, in SW 1/4 SW 1/4 sec.21, T.4 S., R.3 W., Riverside County, CA, Hydrologic Unit 18070202, on right bank, 1.9 mi northeast of Perris, and 2.0 mi upstream from San Jacinto River.
DRAINAGE AREA - 93.3 mi².
REVISIONS HISTORY - WDR CA-92-1: 1991 (instantaneous maximum discharge).
PERIOD OF RECORD - October 1969 to September 1975, October 1989 to September 1997, and October 1998 to current year. PRECIPITATION DATA: Water years 1970-75, 1990-1997.
GAGE - Water-stage recorder, crest-stage gage, and concrete control. Elevation of gage is 1,410 ft above NGVD of 1929, from topographic map. October 1998 to September 2002, at same site at datum 10 ft lower.
REMARKS - Records fair. Some regulation by percolation basins and some pumping for irrigation upstream from station. See schematic diagram of Santa Ana River Basin available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 4,580 ft³/s, Dec. 22, 2010, gage height, 17.93 ft based on basis of slope area measurement of peak flow; no flow for many days in most years.