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USGS Water-Year Summary 2024
12113000 GREEN RIVER NEAR AUBURN, WA
LOCATION - Lat 47°18'45", long 122°12'10" referenced to North American Datum of 1927, in NW 1/4 NW 1/4 sec.17, T.21 N., R.5 E., King County, WA, Hydrologic Unit 17110013, on left bank 1.2 mi east of Auburn, 1.8 mi downstream from Big Soos Creek, and at mile 32.0.
DRAINAGE AREA - 399 mi². excludes 3.67 mi² in the vicinity of Youngs Lake, flow from which has been diverted to Cedar River basin since about 1935.
REVISIONS HISTORY - WSP 1932: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - August 1936 to current year.
GAGE - Water-stage recorder. Datum of gage is NAVD of 1988 (USGS GNSS Level II on November 18, 2020). Prior to May 11, 2021, datum of gage was NGVD of 1929, 3.41 ft lower. Prior to October 19, 1936, nonrecording gage at same site and datum.
REMARKS -
Since Dec. 5, 1961, flow regulated by Howard A. Hanson Reservoir (station 12105800), 32.5 mi upstream from station, for flood control and during summer months, to augment the natural river flow. Minor diversions on upstream tributaries for domestic use. U.S. Geological Survey satellite telemeter at station. Water temperatures March 1952 to September 1986.
City of Tacoma diverted the following average daily discharges from the river at headworks near Palmer for municipal use:
Water Year Discharge
(cfs)Water Year Discharge
(cfs)Water Year Discharge
(cfs)Water Year Discharge
(cfs)2014 59.4 2015 69.7 2016 90.2 2017 95.6 2018 90.3 2019 96.5 2020 92.4 2021 95.0 2022 96.0 2023 95.8 2024 69.7
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 28,100 ft³/s, Nov. 23, 1959, elevation, 69.75 ft (datum in use at the time); minimum discharge, 81 ft³/s, Sept. 23, 1952; minimum elevation, 52.76 ft (datum in use at the time), Oct. 22, 29-31, 1987.
