Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins

Water-Year Summary for Site 11216100

Click to hide Water-Year Summary instructions and information
  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
  • For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
  • For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
  • For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
  • Not all sites have reports available for every water year.
Available Parameters
00054 Reservoir storage(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 
Print this page
USGS Water-Year Summary 2023
11216100 Black Rock Reservoir near Balch Camp, CA
LOCATION - Lat 36°55'13", long 119°01'20" referenced to North American Datum of 1927, in NW 1/4 NW 1/4 sec.06, T.12 S., R.27 E., Fresno County, CA, Hydrologic Unit 18030010, Sierra National Forest, on right bank, at intake tower on North Fork Kings River, and 5.6 mi east-northeast of Balch Camp.
DRAINAGE AREA - 233 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1986 to current year.
GAGE - Water-stage recorder. Elevation of gage is NGVD of 1929 (levels by Pacific Gas and Electric Co.).
COOPERATION - Records were provided by Pacific Gas and Electric Co., under general supervision of the U.S. Geological Survey, in connection with Federal Energy Regulatory Commission project nos. 175 and 1988.
REMARKS - Reservoir is formed by concrete arch-type dam, completed to elevation 4,054 ft in 1927 and raised to 4,098 ft in 1958. Storage began in 1927. Spillway is ungated. Capacity, 1,260 acre-ft, between elevation 4,054 ft, fish release valve, and 4,098 ft, top of spillway crest. Water is diverted from reservoir through tunnel to Balch Powerplant 3.7 mi downstream and returns to the North Fork Kings River at Balch Afterbay. Flow is again diverted from Balch Afterbay in a closed conduit to Kings River Powerplant. Records, including extremes, represent contents at 2400 hours. See schematic diagram of Kings River Basin available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - Maximum contents, 1,330 acre-ft, Oct. 14, 2009, June 23, 24, 2011, maximum elevation, 4,100.01 ft, June 24, 2011; minimum, 359 acre-ft, Nov. 3, 1986, elevation, 4,064.51 ft.