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Washington State Report
Other states that contain this watershed:
Oregon, Middle Columbia-Lake Wallula Watershed

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Water Quality Data Available for this Watershed

Washington, Middle Columbia-Lake Wallula Watershed


Click on the watershed for an interactive map

Search for a waterbody within Middle Columbia-Lake Wallula
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Listed Waters for Reporting Year 1998
Washington, Middle Columbia-Lake Wallula Watershed

Description of this table
NOTE: Click on the underlined "Waterbody Name" to view a Waterbody report.
Columbia River WA_46118A9I2 Rivers and Streams 1 miles
Columbia River WA_46118A9C3 Rivers and Streams 1 miles
Columbia River WA_45120H6B9 Rivers and Streams 1 miles
Columbia River WA_45120H6D7 Rivers and Streams 1 miles
Columbia River WA_45120H6B8 Washington/Oregon Border To Mcnary Dam Rivers and Streams 1 miles
Columbia River WA_NN57SG461.896 Rivers and Streams 1.05 miles
Columbia River WA_45119J2C9 Rivers and Streams 1 miles
Columbia River WA_45119J1C6 Rivers and Streams 1 miles
Columbia River WA_46118B9A3 Rivers and Streams 1 miles
Columbia River WA_45119J3D0 Mcnary Dam To Bonneville Dam Rivers and Streams 1 miles
Columbia River WA_45119J2D9 Bonneville Dam To Mouth Rivers and Streams 1 miles
Snake River WA_YB86JO1.364 Rivers and Streams .89 miles

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Causes of Impairment for Reporting Year 1998

Washington, Middle Columbia-Lake Wallula

Description of this table
Sediment Bioassay 5
Total Dissolved Gas 5
Temperature 3
Arsenic 1
Dissolved Oxygen 1

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Cumulative TMDLs by Pollutant

Washington, Middle Columbia-Lake Wallula Watershed

This chart includes TMDLs since October 1, 1995.

Description of this table
NOTE: Click on the underlined "Number of TMDLs Completed" value to see a listing of those approved TMDLs for the pollutant.
Number of Causes of
Impairment Addressed
Total Dissolved Gas color.gif 5 5

Total: 5 TMDLs; 0 Causes of Impairment



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