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Lower Columbia River Dissolved Gas Monitoring Network


Project Chief: Heather Bragg
Cooperating Agency: U.S. Army Corps of Engineers
Location: Lower Columbia River Basin in the Pacific Northwest, U.S.A.

BACKGROUND

Bonneville Dam

Bonneville Dam on the Columbia River

The U.S. Army Corps of Engineers operates several dams in the 259,000 square mile Columbia River Basin. These dams provide flood control, navigation, irrigation, recreation, and hydroelectric power to the Pacific Northwest. When water is released over the spillways at these dams, air is entrained in the water, increasing the concentration of dissolved gas in the water. The U.S. Environmental Protection Agency's dissolved gas criterion for the protection of freshwater aquatic life is 110% saturation. Saturation is calculated by dividing the pressure of gas dissolved in the water by the barometric pressure at the surface. Concentrations exceeding the criterion can be hazardous to fish.

OBJECTIVE

The U.S. Geological Survey collects real-time data for total dissolved gas, temperature, and barometric pressure.

APPROACH

Eight monitoring stations have been installed from the forebay of the John Day dam near Rufus, Oregon (river mile 215.7) to Camas, Washington (river mile 121.7). Each station measures dissolved gas pressure, barometric pressure, and water temperature. These data are logged and transmitted hourly by satellite to the U.S. Geological Survey and U.S. Army Corps of Engineers. To assure the quality of the data, intersite comparisons of the data are made daily, and monitoring instruments are calibrated every 3 weeks.

Dissoved gas monitoring station

Dissolved gas monitoring station at Camas/Washougal, Washington

REPORTS

OFR 2013-1281. Total Dissolved Gas and Water Temperature in the Lower Columbia River, Oregon and Washington, Water Year 2013: Quality-Assurance Data and Comparison to Water-Quality Standards, by Heather M. Bragg and Matthew W. Johnston

OFR 2012-1256. Total Dissolved Gas and Water Temperature in the Lower Columbia River, Oregon and Washington, Water Year 2012: Quality-Assurance Data and Comparison to Water-Quality Standards, by Dwight Q. Tanner, Heather M. Bragg, and Matthew W. Johnston

OFR 2011-1300. Total Dissolved Gas and Water Temperature in the Lower Columbia River, Oregon and Washington, Water Year 2011: Quality-Assurance Data and Comparison to Water-Quality Standards, by Dwight Q. Tanner, Heather M. Bragg, and Matthew W. Johnston

OFR 2010-1293. Total Dissolved Gas and Water Temperature in the Lower Columbia River, Oregon and Washington, Water Year 2010: Quality-Assurance Data and Comparison to Water-Quality Standards, by Dwight Q. Tanner, Heather M. Bragg, and Matthew W. Johnston

OFR 2009-1288. Total Dissolved Gas and Water Temperature in the Lower Columbia River, Oregon and Washington, Water Year 2009: Quality-Assurance Data and Comparison to Water-Quality Standards, by Dwight Q. Tanner, Heather M. Bragg, and Matthew W. Johnston

OFR 2008-1357. Total Dissolved Gas and Water Temperature in the Lower Columbia River, Oregon and Washington, 2008: Quality-Assurance Data and Comparison to Water-Quality Standards, by Dwight Q. Tanner, Heather M. Bragg, and Matthew W. Johnston

OFR 2007-1408. Total Dissolved Gas and Water Temperature in the Lower Columbia River, Oregon and Washington, 2007: Quality-Assurance Data and Comparison to Water-Quality Standards, by Dwight Q. Tanner, Heather M. Bragg, and Matthew W. Johnston

DS 235. Total Dissolved Gas and Water Temperature in the Lower Columbia River, Oregon and Washington, 2006: Quality-Assurance Data and Comparison to Water-Quality Standards, by Dwight Q. Tanner, Heather M. Bragg, and Matthew W. Johnston

DS 148. Total Dissolved Gas and Water Temperature in the Lower Columbia River, Oregon and Washington, 2005: Quality-Assurance Data and Comparison to Water-Quality Standards, by Dwight Q. Tanner, Heather M. Bragg, and Matthew W. Johnston

SIR 2004-5249. Total Dissolved Gas and Water Temperature in the Lower Columbia River, Oregon and Washington, 2004: Quality-Assurance Data and Comparison to Water-Quality Standards, by Dwight Q. Tanner, Heather M. Bragg, and Matthew W. Johnston

WRIR 03-4306. Total Dissolved Gas and Water Temperature in the Lower Columbia River, Oregon and Washington, 2003: Quality-Assurance Data and Comparison to Water-Quality Standards, by Dwight Q. Tanner, Matthew W. Johnston, and Heather M. Bragg

WRIR 02-4283. Total Dissolved Gas and Water Temperature in the Lower Columbia River, Oregon and Washington, 2002: Quality-Assurance Data and Comparison to Water-Quality Standards, by Dwight Q. Tanner, Matthew W. Johnston, and Heather M. Bragg

WRIR 01-4273. Quality-Assurance Data, Comparison to Water-Quality Standards, and Site Considerations for Total Dissolved Gas and Water Temperature, Lower Columbia River, Oregon and Washington, 2001, by Dwight Q. Tanner and Heather M. Bragg

WRIR 01-4005. Data-Collection Methods, Quality-Assurance Data, and Site Considerations for Total Dissolved Gas Monitoring, Lower Columbia River, Oregon and Washington, 2000, by Dwight Q. Tanner and Matthew W. Johnston

OFR 96-662A. Total dissolved gas, barometric pressure, and water temperature data, lower Columbia River, Oregon and Washington, 1996, by Dwight Q. Tanner, Howard E. Harrison, and Stuart W. McKenzie

DATA

Most recent real-time data

Provisional real-time data are available for the stations listed below:

Map of dissolved gas monitoring sites
Dissolved gas monitoring station location map

 
Location of Currently Operated Stations Installation Period ID Graphs Tables
 1. Columbia River at John Day Dam Nav. Lock, WA (454314120413701) April 1 - Sep 15 JDY custom 3 days
 2. Columbia River below John Day Dam near Cliffs, WA (454249120423500) Year-round JHAW custom 3 days
 3. Columbia River at The Dalles Dam forebay, WA (453712121071200) April 1 - Sep 15 TDA custom 3 days
 4. Columbia River below The Dalles Dam at The Dalles, OR (14105700) Year-round TDDO custom 3 days
 5. Columbia River at Bonneville Dam forebay, WA (453845121562000) Mar 10 - Sep 15 BON custom 3 days
 6. Columbia River at Cascade Island, WA (453845121564001) Variable CCIW custom 3 days
 7. Columbia River below Bonneville Dam near Warrendale, OR (453630122021400) Variable WRNO custom 3 days
 8. Columbia River at Camas/Washougal, WA (453439122223900) Mar 10 - Sep 15 CWMW custom 3 days

Location of Historical Stations ID Graphs
 1. Columbia River at John Day Dam forebay, WA (454257120413000) JDA custom
 2. Columbia River, left bank, near The Dalles, OR (453606121101000) TDTO custom
 3. Columbia River, right bank, near Skamania, WA (453651122022200) SKAW custom
 4. Columbia River, right bank, near Kalama, WA (455903122500000) KLAW custom
 5. Columbia River, left bank, near Wauna, OR (460923123235800) WANO custom

Contact Heather Bragg hmbragg@usgs.gov regarding this study.

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