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USGS 13343590 LOWER GRANITE LK FOREBAY AT LOWER GRANITE DAM, WA

PROVISIONAL DATA SUBJECT TO REVISION

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Funding for this site is provided by the cooperators / programs below:

Station Notes
Dissolved Gas
This station is part of the Dissolved Gas Abatement Study for the US Army Corps of Engineers, Walla Walla District. The data is also available from their website.
Dissolved Gas
This Dissolved Gas Abatement station is operated seasonally from April 1 to September 30.

funding
Due to a lack of funding, total dissolved gas data collection at this station will be discontinued October 1, 2022. If you have any questions or to inquire about potentially funding this site, please use the "Questions" link at the bottom of this page.
This station managed by the Mid-Columbia Field Office (Kennewick).

Available Parameters Available Period
  
2009-04-01  2025-09-26
2009-10-01  2023-03-23
2009-10-01  2023-03-23
2009-04-01  2023-03-23
2025-07-17  2025-09-26
2025-07-17  2025-09-26
2025-07-17  2025-09-26
2025-07-17  2025-09-26
2025-07-17  2025-09-26
2025-07-17  2025-09-26







 (7)
 
  -- or --

 

 
Summary of all available data for this site
Instantaneous-data availability statement

Temperature, water, degrees Celsius
Most recent instantaneous value: 20.5 09-26-2025   03:45 PDT
Graph of Temperature, water, degrees Celsius

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Barometric pressure, millimeters of mercury
 
-- Data temporarily unavailable for the time period specified --

Total partial pressure of dissolved gases, water, unfiltered, millimeters of mercury
 
-- Data temporarily unavailable for the time period specified --

Total partial pressure of dissolved gases, water, unfiltered, percent of saturation
 
-- Data temporarily unavailable for the time period specified --

Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius
Most recent instantaneous value: 270 09-26-2025   03:45 PDT
Graph of Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

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Dissolved oxygen, water, unfiltered, milligrams per liter
Most recent instantaneous value: 8.4 09-26-2025   03:45 PDT
Graph of Dissolved oxygen, water, unfiltered, milligrams per liter

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pH, water, unfiltered, field, standard units
Most recent instantaneous value: 7.9 09-26-2025   03:45 PDT
Graph of pH, water, unfiltered, field, standard units

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Chlorophyll relative fluorescence (fChl), water, in situ, relative fluorescence units (RFU)
Most recent instantaneous value: 0.23 09-26-2025   03:45 PDT
Graph of Chlorophyll relative fluorescence (fChl), water, in situ, relative fluorescence units (RFU)

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Phycocyanin relative fluorescence (fPC), water, in situ, relative fluorescence units (RFU)
Most recent instantaneous value: 0.15 09-26-2025   03:45 PDT
Graph of Phycocyanin relative fluorescence (fPC), water, in situ, relative fluorescence units (RFU)

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Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)
Most recent instantaneous value: 1.0 09-26-2025   03:45 PDT
Graph of Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)

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