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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.
USGS Water-Year Summary 2024
12019310 CHEHALIS RIVER ABOVE MAHAFFEY CREEK NEAR PE ELL, WA
LOCATION - Lat 46°32'43.14", long 123°17'55.38" referenced to North American Datum of 1983, in SW 1/4 SW 1/4 sec.03, T.12 N., R.5 W., Lewis County, WA, Hydrologic Unit 17100103, on middle of private road bridge, 1.8 mi south of Pe Ell, and at mile 108.1.
DRAINAGE AREA - 68.9 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - May 2013 to Sept. 30, 2016 (discontinued).
GAGE - Water stage recorder. Datum of gage is arbitrary.
REMARKS - City of Pe Ell diverts water for municipal use upstream of station. U.S. Geological Survey satellite telemeter at station.
- Water Years 2014 to 2016: Records good except for discharges above 5,000 ft³/s, which are fair.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 8,170 ft³/s, Sept. 29, 2013, gage height, 24.71 ft; minimum discharge, 14 ft³/s, Aug. 26-27, 2013, gage height 16.69 ft.
