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Water-Year Summary for Site 12043000

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  • 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
00010 Temperature, water(Max.,Min.,Mean)  
00060 Discharge(Mean)  
63680 Turbidity, Form Neph(Med.,Min.,Max.)  

Water year 2020: 2019-10-01 to 2020-09-30

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USGS Water-Year Summary 2020
LOCATION - Lat 47°57'37", long 124°23'30" referenced to North American Datum of 1927, in NW 1/4 SW 1/4 sec.04, T.28 N., R.13 W., Clallam County, WA, Hydrologic Unit 17100101, on left bank 30 ft downstream from U.S. Highway 101 bridge, 0.8 mi northwest of Forks, and at mile 6.6.
DRAINAGE AREA - 129 mi².
REVISIONS HISTORY - WSP 1316: 1898-1902. WSP 1736: Drainage area.
PERIOD OF RECORD - November 1897 to December 1901, October to December 1975 (discharge measurements and peak discharges), January 1976 to September 1980, March 1984 to current year. Monthly and peak discharge only, November 1897 and August 1898, published in WSP 1316. Published as Calowa River at Forks, November 1897 to December 1899; as Calowa River near Forks, 1900; and as Kalawa River near Forks, 1901.
GAGE - Water-stage recorder, crest-stage gage, Turbidity sensor, and Water Temperature sensor. Datum of gage is 201.58 ft above NGVD of 1929. November 1897 to December 1901, nonrecording gage at same site but at different datum; October to December 1975, nonrecording gage and crest-stage gage at same site and datum.
REMARKS - No regulation or diversion upstream from station. Chemical analyses October 1976 to September 1978. U.S. Geological Survey satellite telemeter at station.
  • Water Years 2014-2016: Records good except estimated daily discharges, which are fair.
  • Water Years 2017 and 2018: Records good except estimated discharges, which are fair.
  • Water Year 2019: No estimated discharges. Records good.
  • Water Year 2020: Records good except estimated discharges which are fair.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 38,100 ft³/s, Nov. 6, 2006, gage height, 21.41 ft, from rating curve extended above 10,000 ft³/s on basis of step-backwater analysis; minimum discharge, 15 ft³/s, Sept. 28, 1899.

Turbidity: September 2018 to present.

Water Temperature: December 2019 to present.

PERIOD OF DAILY RECORD - Turbidity and Water Temperature.
INSTRUMENTATION - Forrest Technology Systems (FTS) DTS-12 Turbidity sensor and (FTS) DigTemp temperature sensor interfaced with a Data Collection Platform/Electronic Data logger, with 15-min recording internal, Turbidity since September 2018 and Temperature since December 2019.

Additional details are available from the Western Washington Field office.

  • Water Year 2019 (Turb) :
  • Water Year 2019 (Temp) :

TUBIDIDTY: Maximum,    FNU,          ; minimum,   FNU,        .

WATER TEMPERATURE:  Maximum, 12.1°C, Aril,15, 2020; minimum, 3.3°C, Jan. 15, 2020.