USGS Water-Year Summary 2023
11406890 Richvale Canal at Intake, near Oroville, CA
LOCATION - Lat 39°30'19", long 121°41'06" referenced to North American Datum of 1927, in SW 1/4 NW 1/4 sec.18, T.19 N., R.3 E., Butte County, CA, Hydrologic Unit 18020158, on right bank, 500 ft downstream from axis of Thermalito Afterbay Dam, and 7.3 mi west of Oroville.
REVISIONS HISTORY - WDR CA-91-4: 1990.
SURFACE-WATER RECORDS
PERIOD OF RECORD - April 1968 to current year.
GAGE - Water-stage recorder. Datum of gage is 100.47 ft above NGVD of 1929 (levels by California Department of Water Resources).
COOPERATION - Records collected by California Department of Water Resources, under general supervision of the U.S. Geological Survey, in connection with Federal Energy Regulatory Commission project no. 2100.
EXTREMES FOR PERIOD OF RECORD - Maximum daily discharge, 511 ft³/s, May 16, 1974; no flow for many days each year.