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.
- 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.
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.