USGS Water-Year Summary for Site 12100490

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	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00060 Discharge(Mean)
	00095 Specific cond at 25C(Max.,Min.,Mean)
	00300 Dissolved oxygen(Max.,Min.,Mean)
	00400 pH(Max.,Min.,Med.)
	63680 Turbidity, Form Neph(Max.,Min.,Med.)

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Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

12100490 WHITE RIVER AT R STREET NEAR AUBURN, WA

LOCATION - Lat 47°16'30", long 122°12'24" referenced to North American Datum of 1927, in SW 1/4 SW 1/4 sec.29, T.21 N., R.5 E., King County, WA, Hydrologic Unit 17110014, on right bank, on the downstream side of the "R" St. bridge, 4.0 mi upstream from the White River Power Plant tailrace, 2.4 mi south-southeast of Auburn, and at mile 7.6

DRAINAGE AREA - 474 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD - October 1987 to September 1989, October 1990 to September 2003, October 2005 to current year. "12100496", published as White River near Auburn, October 1987 to September 1989, October 1990 to September 2003, October 2005 to September 2009.

GAGE - Water stage recorder and crest stage gage. Datum of gage is NGVD of 1929 (survey method unknown) and is 3.66 ft above NAVD of 1988 (GNSS survey by USGS on Sept. 18, 2020). Prior to October 1, 2009, at site 1.3 mi downstream at same datum.

REMARKS - Since November 1911, White River Flume (station 12098920) has diverted water from left bank 16.7 mi upstream for storage in, and maintenance of, Lake Tapps (station 12101000). Water is returned to White River 4.0 mi downstream via the Lake Tapps Diversion (station 12101100). Power development at White River Powerplant at Dieringer was discontinued in 2004. Since 1942, flow regulated by Mud Mountain Lake (station 12098000) for flood control. U.S. Geological Survey satellite telemeter at station.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 15,000 ft³/s, Feb. 10, 1996, elevation, 83.15 ft, site then in use; minimum discharge, 89 ft³/s, Feb. 17, 18, 1993.

WATER-QUALITY RECORDS

PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: May 2010 to current year. pH: May 2010 to current year. WATER TEMPERATURE: May 2010 to current year. DISSOLVED OXYGEN: June 2010 to current year. TURBIDITY: May 2010 to current year.

INSTRUMENTATION - Multiparameter water quality sonde interfaced with a Data Collection Platform/Electronic Datalogger, with 15-min recording interval, since May 2010. Turbidity sensor is an Eureka Manta+ turbidity sensor installed on a multi-parameter sonde, since July 2021. Prior to July 2021 turbidity sensor was a 6136 sensor installed on a YSI 6920 V2-2 sonde. 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.

REMARKS - Additional details are available from the Washington Water Science Center. Continuous water quality record is no longer rated, as of water year 2020. Prior ratings can be obtained via request to the Washington Water Science Center.

EXTREMES FOR PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Maximum recorded, 112 uS/cm, Feb. 15, 2019; minimum, 31 uS/cm, Feb. 23, 2012. pH: Maximum, 9.4 units, Sept. 20, 21, 2018; minimum, 6.0 units, Jan. 6, 2015. WATER TEMPERATURE: Maximum, 22.9°C, July 3, 2015; minimum, 0.0°C, many days, water years 2011, 2014, 2017, 2019, 2021, and 2023. DISSOLVED OXYGEN: Maximum, 15.3 mg/L, Feb. 25, 26, 2011, and Dec. 22, 2022; minimum, 8.5 mg/L, several days in July, 2015. TURBIDITY: Maximum prior to July 2021, >1100 FNU, several days in water years 2011, 2013, 2014, 2016-2020; maximum subsequent to July 2021 2,370 FNU Sept. 18, 2021; minimum prior to July 2021, 0.7 FNU, Feb. 20, 21, 26, Mar. 11, 2013; minimum subsequent to July 2021, 0.6 FNU, Mar. 18, 2023.