USGS Water-Year Summary 2019
11355500 HAT CREEK NEAR HAT CREEK CA
LOCATION - Lat 40°41'20.8", long 121°25'22.1" referenced to North American Datum of 1983, in NW 1/4 SE 1/4 sec.28, T.33 N., R.5 E., Shasta County, CA, Hydrologic Unit 18020003, on right bank, 0.38 mi downstream from Cave Campground, 1.1 mi northeast of Old Station, and 10.8 mi southeast of Hat Creek.
DRAINAGE AREA - 162 mi². hydrologic drainage boundary uncertain because of ground-water exchange.
PERIOD OF RECORD - July 1926 to September 1929, April 1930 to September 1994, May 2016 to current year.
GAGE - Water-stage recorder. Elevation of gage is 4,290 ft above NGVD of 1927, from topographic map. July 1926 to April 1928, at site 0.5 mi upstream at different datum. May 1928 to July 1965, at site 80 ft upstream at datum 2.76 ft higher.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 3,320 ft³/s, Dec. 11, 1937, gage height, 7.75 ft, in gage well, affected by drawdown, site and datum then in use, from rating curve extended above 610 ft³/s on basis of slope-area measurement of peak flow; minimum, 67 ft³/s, Sept. 7, 1934.
PERIOD OF DAILY RECORD - May 2016 to current year.
INSTRUMENTATION - Temperature recorder since May 13, 2016.