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Water-Year Summary for Site 12166300

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00060 Discharge(Mean) [discontinued 10/01/2015]  
00065 Gage height(Mean)  
63680 Turbidity, Form Neph(Med.,Max.,Min.) [DTS-12; discont.10/01/2021]  
63680 Turbidity, Form Neph(Med.,Max.,Min.) [Hach; discont. 12/5/2014]  
63682 Turbidity,FormBksctr(Min.,Med.,Max.) [Analite; discont. 5/5/2014]  

Water year 2024: 2024-10-01 to 2025-09-30
 
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USGS Water-Year Summary 2024
12166300 NORTH FORK STILLAGUAMISH RIVER NEAR OSO, WA
LOCATION - Lat 48°16'19.3", long 121°53'15.4" referenced to North American Datum of 1983, in NW 1/4 SW 1/4 sec.10, T.32 N., R.7 E., Snohomish County, WA, Hydrologic Unit 17110008, on right bank, downstream side of Whitman Road Bridge, 2.1 mi east of Oso, and at mile 17.6.
DRAINAGE AREA - 161 mi². 161 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - March 2014 to September 2015 (continuous-record gaging station), October 2015 to current year (gage heights only).
GAGE - Water-stage recorder. Datum of gage is NAVD 88.
REMARKS - No regulation and some small diversions upstream. U.S. Geological Survey satellite telemeter at station.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 14,800 ft³/s, Nov. 28, 2014, gage height, 222.87 ft.;  maximum gage height, 224.67 ft., Nov. 22, 2017, (stage only since Oct. 2015); minimum discharge 105 ft³/s, Aug. 8 and 14, 2015.
WATER-QUALITY RECORDS
PERIOD OF RECORD - TURBIDITY: April 2014 to Sept. 2021.
INSTRUMENTATION - An FTS DTS-12 turbidity sensor interfaced with a Data Collection Platform/Electronic Datalogger, with 15-minute recording interval. Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government.
REMARKS - U.S. Geological Survey satellite telemeter at station.
EXTREMES FOR PERIOD OF DAILY RECORD - TURBIDITY: Maximum, 1,600 FNU, Oct. 22, Nov. 4, 2014 and Nov. 17, 2015; minimum, 0.0 FNU, July 26, 2016.