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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 2025
14217812 SWIFT POWERPLANT NO 2 HEADWATER NEAR COUGAR, WA
LOCATION - Lat 46°03'35", long 122°15'30" referenced to North American Datum of 1927, Cowlitz County, WA, Hydrologic Unit 17080002, 2.3 mi E of Cougar, WA.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 2022 to current year (October 1999 to September 2022 are unpublished, data available in files of Washington Water Science Center.)
GAGE - Water-stage recorder. Datum of gage is NGVD of 1929.
COOPERATION - Gage is on the property of and in cooperation with Pacificorp.
REMARKS -
EXTREMES FOR PERIOD OF RECORD - (Since Water Year 2023) Maximum elevation, 606.90 ft, September 26, 2023; minimum elevation, 596.68 ft, Oct. 30, 2022.
