Effects of Multipurpose Reservoirs on the Water Temperature of the North and South Santiam Rivers, Oregon

摘要

Water temperature is an important water-quality characteristic in streams because the rates of most chemical and biological reactions are temperature dependent. Water temperature has a direct influence on the quality of water for domestic supplies, fish, waste assimilation, and industrial and agricultural use. The report documents the results of a study to quantify the effects of Corps of Engineers' reservoirs on the water temperatures of the North and South Santiam Rivers. The results of the study will aid the Corps of Engineers in determining the feasibility of using selective withdrawl from Corps' reservoirs to control water temperatures downstream of the projects. It is not within the scope of the report to test flow conditions beyond what was experienced under present operation guidelines.