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Water-Year Summary for Site 12488500

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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)  
00065 Gage height(Mean)  

Water year 2017: 2017-10-01 to 2018-09-30
 

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USGS Water-Year Summary 2017
12488500 AMERICAN RIVER NEAR NILE, WA
LOCATION - Lat 46°58'40", long 121°10'03" referenced to North American Datum of 1927, in SE 1/4 NW 1/4 sec.12, T.17 N., R.13 E., Yakima County, WA, Hydrologic Unit 17030002, Snoqualmie National Forest, on right bank 300 ft upstream from Bumping Lake Road bridge, 4.9 mi downstream from Hall Creek, 16.0 mi northwest of Nile, and at mile 0.5.
DRAINAGE AREA - 78.9 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - April 1909 to March 1912, July to September 1913, June to September 1914, June to September 1915, October 1939 to current year. Monthly discharge only for period 1909 to 1915, published in WSP 1316.
REVISED RECORDS - WSP 982: 1940-42. WSP 1216: Drainage area. WSP 1286: 1911. WDR WA-06-1: 1945-1950, 1956, 1966-1976, 1978, 1980-1986, 1991, 1996, 1999 (M).
GAGE - Water-stage recorder. Datum of gage is 2,700.00 ft above NGVD of 1929 (Washington State Highway Department benchmark). Prior to Sept. 12, 1915, nonrecording gage at site 300 ft downstream at different datum. Oct. 12 to Dec. 7, 1939, nonrecording gage at present site and datum.
REMARKS - No regulation or diversion. U.S. Geological Survey satellite telemeter at station.
  • Water Years 2014 to 2016: Records fair except for estimated daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 6,280 ft³/s, revised, Dec. 26, 1980, gage height, 77.99 ft, from rating curve extended above 2,500 ft³/s; minimum discharge, 15 ft³/s, Jan. 5, 2004, but may have been lower during period of ice effect that day.
WATER-QUALITY RECORDS
PERIOD OF RECORD - October 1962 to September 1964 (Chemical analyses).
PERIOD OF DAILY RECORD - WATER TEMPERATURE: October 1968 to May 1971, November 2005 to December 2006.
INSTRUMENTATION - Temperature recorder October 1968 to May 1971, November 2005 to December 2006.
REMARKS - Temperature records are fair.
EXTREMES FOR PERIOD OF RECORD - WATER TEMPERATURE: Maximum, 16.3 °C, July 23, 2006; minimum, 0.0°C on many days during winter periods.