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Water-Year Summary for Site 12186000

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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.
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  • Not all sites have reports available for every water year.
Available Parameters
00010 Temperature, water(Mean,Max.,Min.)  
00060 Discharge(Mean)  
00065 Gage height(Mean)  
63680 Turbidity, Form Neph(Med.)  

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

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USGS Water-Year Summary 2023
LOCATION - Lat 48°10'08", long 121°28'10" referenced to North American Datum of 1927, in NE 1/4 NE 1/4 sec.23, T.31 N., R.10 E., Snohomish County, WA, Hydrologic Unit 17110006, Mount Baker National Forest, on right bank 0.6 mi upstream from White Chuck River, 8.4 mi southeast of Darrington, and at mile 32.5.
DRAINAGE AREA - 152 mi².
REVISIONS HISTORY - WSP 752: 1932. WSP 1286: 1918(M), 1920(M), 1921, 1922(M), 1932(M), 1934(M), 1946-47(M), 1949.
PERIOD OF RECORD - August to November 1910 (fragmentary gage heights only), October 1917 to September 1922, August 1928 to current year. Monthly discharge only for April and May 1921, published in WSP 1316.
GAGE - Water-stage recorder. Elevation of gage is 930 ft above NGVD of 1929, from river-profile map. Prior to Nov. 18, 1910, non-recording gage 0.5 mi downstream at different datum.
REMARKS - No regulation or diversion upstream from station. U.S. Geological Survey satellite telemeter at station. 
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 44,000 ft³/s, Oct 20, 2003, gage height, 15.39 ft, from rating curve extended above 15,000 ft³/s, on basis of slope-area measurement; maximum gage height, 16.03 ft, Dec 26, 1980; minimum daily discharge, 90 ft³/s, Nov 6, 2002, but may have been lower during period of missing record.
PERIOD OF DAILY RECORD - WATER TEMPERATURE: Oct. 2016 to current year. TURBIDITY: Sept. 2011 to Oct. 2015.
INSTRUMENTATION - Water temperature sensor interfaced with a Data Collection Platform/Electronic Datalogger, with 15-minute recording interval, since October 2016.
REMARKS - U.S. Geological Survey satellite telemeter at station. 
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum, 20.8°C, Aug. 15, 2023; minimum, -0.2°C, Dec. 21, 2022. TURBIDITY: Maximum, 820 FNU, Dec. 9, 2014; minimum, 0.0 FNU several days in Aug. and Sept. 2015.