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Water-Year Summary for Site 12087000

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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
00060 Discharge(Mean)  
00065 Gage height(Mean)  

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

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USGS Water-Year Summary 2020
12087000 MASHEL RIVER NEAR LA GRANDE, WA
LOCATION - Lat 46°51'25", long 122°18'05" referenced to North American Datum of 1927, in NW 1/4 SE 1/4 sec.21, T.16 N., R.4 E., Pierce County, WA, Hydrologic Unit 17110015, on left bank, 50 ft downstream from State Highway 7 bridge, 1.8 mi northeast of La Grande, and at mile 3.3.
DRAINAGE AREA - 80.7 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1940 to September 1957, October 1991 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 619.53 ft above NGVD of 1929. Prior to Oct. 1, 1957, on right bank at same datum.
REMARKS - Small diversion for municipal supply for Eatonville. Some regulation at low flow by millpond in Eatonville. U.S. Geological Survey satellite telemeter at station.
  • Water Years 2014 to 2016, 2018, 2019: No estimated daily discharges. Records fair.
  • Water Year 2017, 2020: Records fair. Estimated discharge is poor.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 9,520 ft³/s, Feb. 6, 2020, gage height, 7.94 ft, from rating 7.1, present datum; minimum discharge, 2.3 ft³/s, Aug. 27, 1992.