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Title

Spokane River and Lake Spokane Dissolved Oxygen Total Maximum Daily Load: Water Quality Improvement Report

 
Publication number Date Published Date Revised
07-10-073September 2007March 2010
VIEW NOW: Acrobat PDF format (Number of pages: 399) (Publication Size: 4MB)




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Author(s) Moore, David, Water Quality Program; Ross, James, Environmental Assessment Program
Description This TMDL establishes a management plan to reduce nutrients in the Spokane River and Lake Spokane to prevent low dissolved oxygen, excessive algae blooms and degradation of downstream water quality. The dissolved oxygen levels in this system are affected by nutrients; therefore, this TMDL establishes limits for ammonia (NH3), total phosphorus (TP) and carbonaceous biochemical oxygen demand (CBOD). The Managed Implementation Plan focuses on strategies to reduce phosphorus because the strategies will likely result in reductions of these and other important pollutants. This TMDL has been revised from previous drafts issued in 2007 and 2008 by containing a dissolved oxygen responsibility for a hydroelectric dam, accounting for stormwater pollution, and cumulatively assessing the dissolved oxygen impacts from all point sources in Washington and Idaho.
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Keywords water quality improvement, Spokane River, implementation plan, water quality, Total Maximum Daily Load, dissolved oxygen, algae
WEB PAGE Spokane River Dissolved Oxygen Water Quality Improvement Project
WATERSHED Water Resource Inventory Areas
(WRIA 54,WRIA 57,WRIA 56)
DATA Environmental Information Management (EIM) #BCUS0005

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