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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
13352950 LAKE SACAJAWEA FOREBAY AT ICE HARBOR DAM, WA
LOCATION - Lat 46°15'06", long 118°52'35" referenced to North American Datum of 1927, Walla Walla County, WA, Hydrologic Unit 17060110, on Ice Harbor Dam on the Snake River, 8 mi northeast of the town of Burbank WA, at mile 10.2
DRAINAGE AREA - 109,000 mi²
WATER-QUALITY RECORDS
PERIOD OF DAILY RECORD - WATER TEMPERATURE: April 2009 to current year (seasonal records only).
TOTAL DISSOLVED GAS: April 2009 to current year (seasonal records only).
INSTRUMENTATION - Water-quality monitor with a 1-hour logging interval since 2005.
REMARKS - The USACE manages spill levels for fish passage to avoid exceeding 120% total dissolved gas (TDG) in project tailraces and 115% TDG in the forebay of the next project downstream consistent with the current percent TDG limits.
EXTREMES FOR PERIOD OF DAILY RECORD -
WATER TEMPERATURE: Maximum recorded, 23.0°C, July 12, 2015; Minimum recorded, 4.3°C, Mar. 12, 13, 2011, Mar. 2, 2012, but may have been higher or lower during periods of missing record.
TOTAL DISSOLVED GAS: Maximum recorded, 128 percent saturation, March 22, 2017; Minimum, 96 percent saturation, Sept. 25-27, 29 2009, Sept. 30, 2012, but may have been higher or lower during periods of missing record.
