USGS Water-Year Summary 2023
11300500 South San Joaquin Canal near Knights Ferry, CA
LOCATION - Lat 37°51'16", long 120°38'14" referenced to North American Datum of 1927, Calaveras County, CA, Hydrologic Unit 18040010, in Rancheria del Rio Estanislao Grant, on left bank, 0.8 mi downstream from headgate at Goodwin Dam, and 3.0 mi northeast of Knights Ferry.
SURFACE-WATER RECORDS
PERIOD OF RECORD - May 1914 to current year. Monthly and yearly discharge only for some periods, published in WSP 1315-A.
GAGE - Water-stage recorder and concrete control. Elevation of gage is 334.18 ft above NGVD of 1929 (levels by Oakdale Irrigation District). Prior to Mar. 12, 1915, nonrecording gage 100 ft downstream. Mar. 12, 1915, to July 1, 1921, nonrecording gage at present site and datum.
COOPERATION - Records were provided by Oakdale and South San Joaquin Irrigation District, under general supervision of the U.S. Geological Survey, in connection with Federal Energy Regulatory Commission project no. 2067.
EXTREMES FOR PERIOD OF RECORD - Maximum daily discharge, 1,320 ft³/s, Aug. 10-17, 1978; no flow at times in most years.