USGS Water-Year Summary 2024

11345500 South Fork Pit River near Likely, CA

LOCATION - Lat 41°13'51", long 120°26'10" referenced to North American Datum of 1927, in NE 1/4 SE 1/4 sec.11, T.39 N., R.13 E., Modoc County, CA, Hydrologic Unit 18020002, on left bank, 250 ft downstream from highway bridge, 1.4 mi downstream from West Valley Creek, 2.0 mi downstream from West Valley Reservoir, and 3.5 mi east of Likely.

DRAINAGE AREA - 247 mi².

REVISIONS HISTORY - WSP 1931: Drainage area, 1932 (instantaneous maximum discharge), 1938 (instantaneous maximum discharge), 1952 (instantaneous maximum discharge). WDR CA-88-4: 1983 (instantaneous maximum discharge).

SURFACE-WATER RECORDS

PERIOD OF RECORD - October 1928 to current year. Monthly discharge only for some periods, published in WSP 1315-A. CHEMICAL DATA: Water years 1951-79. WATER TEMPERATURE: Water years 1965-79. SEDIMENT DATA: Water years 1957-61, 1967-70.

GAGE - Water-stage recorder. Datum of gage is 4511.64 ft above NAVD of 1988. Prior to Oct. 1, 1931, at site 1,000 ft downstream at different datum.

REMARKS - Considerable regulation by West Valley Reservoir on West Valley Creek beginning in May 1937, usable capacity, 21,700 acre-ft. Diversions for irrigation of about 3,800 acres upstream from station. See schematic diagram of Pit River and McCloud River Basins available from the California Water Science Center.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 1,620 ft³/s, June 2, 1971, gage height, 6.05 ft; minimum daily, 0.80 ft³/s, Mar. 19, 1940.