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Instream Flow Study Guidelines: Technical and Habitat Suitability Issues

Publication number Date Published Date Revised
04-11-007April 2004March 2016
VIEW NOW Instream Flow Study Guidelines: Technical and Habitat Suitability Issues (Number of pages: 84) (Publication Size: 1057KB)

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Author(s) Department of Fish and Wildlife and Ecology
Description The Washington Department of Fish and Wildlife (WDFW) recommends instream flows to be conditions of water rights or Clean Water Act Section 401 certification (issued by Ecology) and hydroelectric power project licenses or exemptions (issued by the Federal Energy Regulatory Commission FERC). When a major water project is planned, WDFW and Ecology request that the project proponent conduct an instream flow study in consultation with the agencies to provide adequate information on which to base an instream flow recommendation or requirement. This document provides information on instream flow study guidelines.
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 401, guidelines, IFIM, study, instream flow, fish habitat
WEB PAGE The Science Behind Instream Flows