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An Introduction To: Instream Flows and Instream Flow Rules

Publication number Date Published
17-11-002January 2017
VIEW NOW An Introduction To: Instream Flows and Instream Flow Rules (Number of pages: 2) (Publication Size: 933KB)

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Author(s) Sessions, Carrie
Description Healthy stream flows are a vital part of our natural environment and com-munity water supplies. In addition to providing habitat for fish and wildlife, stream flows contribute to the scenic and aesthetic qualities of natural set-tings and help support recreation, stock watering, and other uses of water.

The Department of Ecology is required by state law to keep enough water in streams to protect and preserve these instream resources and uses. To do this, we set flow levels in administrative rules; the specific stream flow levels are called “instream flows.” Once instream flow levels are established in a rule, they serve as a water right for the stream and the resources that depend on it.
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.

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Keywords water right, mitigation, instream flow, instream flow rules