USGS Water-Year Summary 2020
12035000 SATSOP RIVER NEAR SATSOP, WA
LOCATION - Lat 47°00'03", long 123°29'37" referenced to North American Datum of 1927, in NE 1/4 SE 1/4 sec.36, T.18 N., R.7 W., Grays Harbor County, WA, Hydrologic Unit 17100104, on upstream side of bridge on old U.S. Highway 410, 0.6 mi west of Satsop, and 2.3 mi upstream from mouth.
DRAINAGE AREA - 299 mi².
- WSP 1286: 1930-35(M), 1937(M). WSP 1716: Drainage area. WSP 1932: 1945, 1949(M), 1951(M), 1956-57(M), 1959(M).
PERIOD OF RECORD - March 1929 to current year.
GAGE - Water-stage recorder. Datum of gage is North American Vertical Datum of 1988. Prior to Mar. 19, 1938, nonrecording gage at site 60 ft upstream at datum 20.9 ft higher.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood in November 1909 reached a stage of 37.1 ft, from high-water mark, at railroad bridge 300 ft downstream.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 63,600 ft³/s, Mar. 19, 1997, elevation, 38.87 ft; maximum elevation, 38.9 ft, Jan. 22, 1935, from floodmarks, present datum; minimum discharge, 147 ft³/s, Aug. 31, Sept. 1, 2, 1994; minimum elevation, 21.66 ft, at datum prior to May 9, 2018, Sept. 3-6, 1934.
PERIOD OF RECORD - TURBIDITY: December 2018 to present.
INSTRUMENTATION - Turbidity sensor (Observator Analite NEP-5000) interfaced with a Data Collection Platform/Electronic Datalogger, with 15-minute logging interval, since Dec 2018. 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.
EXTREMES OUTSIDE PERIOD OF RECORD -