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Water-Year Summary for Site 12099600

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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)  

Water year 2020: 2020-10-01 to 2021-09-30

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USGS Water-Year Summary 2020
LOCATION - Lat 47°10'34", long 122°01'02" referenced to North American Datum of 1927, in NE 1/4 SE 1/4 sec.34, T.20 N., R.6 E., King County, WA, Hydrologic Unit 17110014, on left bank at downstream side of county road bridge, 1.0 mi northeast of Buckley, and at mile 0.1.
DRAINAGE AREA - 15.4 mi².
PERIOD OF RECORD - March 1977 to September 1981, December 1981 to current year.
GAGE - Water-stage recorder and crest-stage gage. Elevation of gage is 630 ft above NGVD of 1929, from topographic map. March 1977 to January 24, 1984, at site 45 ft upstream at datum 7.91 ft higher. January 25, 1984 to March 26, 1996, at site 20 ft upstream, at datum 6.00 ft higher. March 27, 1996 to Sept. 30, 2008, at site 30 ft upstream at datum 5.00 ft higher. Oct. 1, 2008 to May 31, 2013 at site 30 ft upstream at same datum.
REMARKS - Flow partly regulated by millpond at mile 5.6. Diversions upstream from station for domestic and industrial use. Inter-basin diversion from Scatter Creek of about 2 ft³/s during low-flow periods enters Boise Creek upstream from millpond. U.S. Geological Survey satellite telemeter at station. Chemical analyses November 1961 to July 1964.
  • Water Year 2014: Records fair except estimated daily discharges and flows below 25 ft³/s, which are poor.
  • Water Year 2015: Records fair except estimated daily discharges and flows below 25 ft³/s, which are poor.
  • Water Year 2016 to 2019: Records poor.
EXTREMES FOR PERIOD OF RECORD - Maximum recorded discharge, 1,360 ft³/s, Jan. 7, 2009, gage height, 10.39 ft, but may have been higher on that day; minimum discharge, 1.2 ft³/s Aug. 29, 2015.