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


Page Loading - Please Wait...

* We've detected you're using a mobile device. Find our Next Generation Station Page here.
Click to hideNews Bulletins

Water-Year Summary for Site 11471000

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
00060 Discharge(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 

Print this page
USGS Water-Year Summary 2023
11471000 Potter Valley Powerhouse Intake near Potter Valley, CA
LOCATION - Lat 39°22'00", long 123°07'35" referenced to North American Datum of 1927, in SW 1/4 SW 1/4 sec.31, T.18 N., R.11 W., Mendocino County, CA, Hydrologic Unit 18010110, in penstock of powerhouse of Pacific Gas and Electric Co., 1.5 mi southwest of Van Arsdale Dam, and 3.2 mi northwest of town of Potter Valley.
REVISIONS HISTORY - WSP 1395: 1950. WDR CA-89-2: 1988.
SURFACE-WATER RECORDS
PERIOD OF RECORD - December 1909 to current year. Prior to October 1922, monthly discharge only, published in WSP 1315-B. Prior to October 1931, published as "Snow Mountain Water and Power Co.'s Tailrace near Potter Valley." October 1931 to September 1984, published as "Potter Valley Powerhouse Tailrace near Potter Valley." SEDIMENT DATA: Water years 1964-68.
GAGE - Acoustic flowmeter in penstock of powerplant. Elevation of gage is 1,440 ft above NGVD of 1929, from topographic map. Prior to Dec. 11, 1985, water-stage recorder and Parshall flume. See WSP 1929 for history of changes prior to Apr. 12, 1950.
COOPERATION - Records collected by Pacific Gas and Electric Co., under general supervision of the U.S. Geological Survey, in connection with Federal Energy Regulatory Commission project no. 77.
REMARKS - Water is diverted from Eel River above Van Arsdale Dam. After passing through powerhouse, part is used for irrigation in Potter Valley and remainder flows into East Fork Russian River. See schematic diagram of Eel River Basin available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - (Since 1922) Maximum daily discharge, 351 ft³/s, Oct. 31, 1982; no flow at times in several years.