Publication Summary

Title

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

Month-Year PublishedSeptember 2007
Revised onSeptember 2009
Online Availability
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Short 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.

Publication Number07-10-073
Author(s)Eastern Regional Office Water Quality Program Staff
Print Availability
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Number of pages 219
Keywords algae, dissolved oxygen, implementation plan, quality, Spokane River, Total Maximum Daily Load, water quality, water quality improvement
Subject Waterbodies
WRIA 54 - Lower Spokane,
Lower Spokane,
WRIA 55 - Little Spokane,
Little Spokane,
WRIA 56 - Hangman,
Hangman,
WRIA 57 - Middle spokane,
Middle Spokane
map of Washington state showing locations of subject waterbodies
Related Web ContentSpokane River Dissolved Oxygen Water Quality Improvement Project

This page last updated September 15, 2009