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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.
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USGS Water-Year Summary 2024
13352600 SNAKE RIVER BELOW LOWER MONUMENTAL DAM, WA
LOCATION - Lat 46°33'13.92", long 118°32'51.92" referenced to North American Datum of 1927, Franklin County, WA, Hydrologic Unit 17060110, on left bank 1 mi below Lower Monumental Dam on the Snake River, 6.2 mi south of the town of Kahlotus WA, at mile 40.4.
WATER-QUALITY RECORDS
PERIOD OF RECORD - October 2009 to October 2022. Data from 1995 to Sepember 2003 are available from the U.S. Army Corps of Engineers Walla Walla office, and data from October 2003 to September 2009 are available from the U.S. Geological Survey Kennewick Field Office.
PERIOD OF DAILY RECORD - WATER TEMPERATURE: October 2009 to October 2022. TOTAL DISSOLVED GAS: October 2009 to October 2022.
INSTRUMENTATION - Water quality monitor since 1995, with a 1-hour logging interval since October 2003.
REMARKS - The Corps 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, 22.4°C, August, 14 2021; Minimum 1.9°C, March 4, 2019, but may have been higher or lower during periods of missing record.
TOTAL DISSOLVED GAS: Maximum, 135 percent saturation, March 22, 2017; Minimum, 93 percent saturation, October 15, 20, 22, December 18, 2009, Nov. 29, 30, 2010 and December 18, 2016, but may have been higher or lower during periods of missing record.
