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USGS Water-Year Summary 2024
12024000 SOUTH FORK NEWAUKUM RIVER NEAR ONALASKA, WA
LOCATION - Lat 46°34'33", long 122°41'02" referenced to North American Datum of 1927, in SW 1/4 SE 1/4 sec.28, T.13 N., R.1 E., Lewis County, WA, Hydrologic Unit 17100103, on right bank at Jorgenson Road bridge, 1 mi upstream from Lost Creek, 1.7 mi east of Onalaska, and at mile 22.8.
DRAINAGE AREA - 42.4 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - July to October 1942, July to October 1943, July 1944 to November 1948, June 1957 to September 1971, October 1943 to September 1958, published as Newaukum River near Onalaska, and October 1998 to current year (seasonal records).
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is NAVD of 1988 (VERTCON conversion). Prior to May 3, 2018 datum of gage NGVD of 1929, 3.51 ft lower (levels by Lewis County). Prior to October 1998 at same site at different datum. Prior to September 28, 1944, nonrecording gage at same site at different datum.
REMARKS - Probably some small diversions for irrigation and domestic use upstream from station. No regulation. U.S. Geological Survey satellite telemeter at station.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 8,750 ft³/s, Jan. 7, 2009, gage height, 539.21 ft; minimum discharge, 8.9 ft³/s, Oct. 1-4, 2003.
