Publications Home || Browse by topic || Browse by program || Ecology website

Publication Summary

Our Ecology website has changed, which can cause broken links.
To report these, please contact us with the publication and broken link.


Walla Walla River Tributaries Temperature Total Maximum Daily Load Study

Publication number Date Published
07-03-014April 2007
VIEW NOW Walla Walla River Tributaries Temperature Total Maximum Daily Load Study (Number of pages: 187) (Publication Size: 3MB)

Trouble viewing? Try these free options.
Author(s) Stohr, A., M. LeMoine, and G. Pelletier
Description The Walla Walla River basin contains salmonid fish habitat supporting endangered populations of steelhead and bull trout. Although temperatures in upper Mill Creek above the drinking water diversion stayed cool (under 13.5°C) year round, monitoring shows that temperatures at other tributary locations are warmer than federal Clean Water Act water quality standards.

Cooler summertime water temperatures are predicted for hypothetical conditions with mature riparian vegetation and improvements in riparian microclimate. Temperature reductions ranging from 2.5 - 6.0ºC are expected compared with the current conditions.

In addition to improvements in stream shading, other management activities such as increasing channel stability and complexity are recommended.
The mission of the Department of Ecology is to protect, preserve, and enhance Washington’s environment. To help us meet that goal, please consider the environment before you print or request a copy.

ADA Accessibility
The Department of Ecology is committed to providing people with disabilities access to information and services by meeting or exceeding the requirements of the Americans with Disabilities Act (ADA), Section 504 and 508 of the Rehabilitation Act, and Washington State Policy #188.
Visit Ecology’s website for more information.
Contact EAP Publications Coordinator at 564-669-3028 or
Keywords stream, creek, reduction, flow, temperature, model, fish, 303(d), section 303, basin, river, water, Total Maximum Daily Load
WATERSHED Water Resource Inventory Area 32 Walla Walla
DATA Environmental Information Management (EIM) #ASTO0003


Walla Walla River Basin pH and Dissolved Oxygen Total Maximum Daily Load Study: Water Quality Improvement Report

Walla Walla Watershed Temperature Total Maximum Daily Load: Water Quality Improvement Report

Quality Assurance Project Plan: Walla Walla River Tributaries Temperature Total Maximum Daily Load