USGS Water-Year Summary 2024
12113346 SPRINGBROOK CREEK NEAR ORILLIA, WA
LOCATION - Lat 47°25'53", long 122°13'35" referenced to North American Datum of 1927, in SW 1/4 SW 1/4 sec.31, T.23 N., R.5 E., King County, WA, Hydrologic Unit 17110013, on right bank 50 ft upstream from 84th Avenue South (East Valley Highway), 1.2 mi upstream from confluence with Mill Creek, and 1.0 mi southeast of Orillia.
DRAINAGE AREA - 8.44 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1993 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is NAVD of 1988 (USGS differential levels) and is 3.50 ft below NGVD of 1929 (City of Kent benchmark). Prior to May 11, 2021, datum of gage was NGVD of 1929. U.S. Geological Survey satellite telemeter at station.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 450 ft³/s, Feb. 9, 1996, elevation, 19.55 ft (datum then in use); minimum discharge, 0.52 ft³/s, Sept. 30, 2003.