Existing 401 Certifications for Dams

Below are links to most of the hydropower 401 certifications that Ecology issued, denied or waived in the past 20 years.

Note: Available in Adobe Acrobat (.PDF file) format. To view and/or print PDF files, you first will need to download and install Adobe Reader.

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Anderson Creek McNary Northshore Project
Baker River Hydroelectric Project Meyers Falls
Bear Creek Monroe Street

Boundary 401 (~45 mb)

Box Canyon
Box Canyon Amendment
Morse Creek

Final Water Quality Amendment to Certification
Morse Creek Amendment Order No. 7732

Burnham Creek
Newhalem Creek Hydroelectric Project
Calligan Creek Nisqually
Cedar Creek Waiver Packwood Lake Hydroelectric Project
Cispus Denial Priest Rapids Hydroelectric Project
Condit Cert

401 certification (1993)
401 certification for decommissioning (2010)

Rock Island
Cow Fall 401
Rocky Creek
Cowlitz Falls License Order Rocky Reach
Cowlitz River Rocky Reach Pool Raise
Cushman No. 2 Dam
Skagit Waiver
Cushman WQC 401 Snoqualmie Falls 401 WQC
Elkhorn Spokane River 401 Final Certification
Elwha Dam Sullivan Creek
Enloe Dam

Tolt, South Fork 401 Cert

Trinity Hydro 401 Cert
Grant Turbine Upgrade Twin Falls Hydro License
Amended Order
Hancock Creek Upriver Dam Spokane
Jackson, Henry M. Hydroelectric Project Order No. 7918 Wells Dam
Koma Kulshan Project 401 (Sulfur and Rocky) White River

Lake Chelan Water Quality Certification No. 637

Yelm Centralia Diversion
Lewis River Hydroelectric Projects:
Youngs Creek:

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Last updated March 2016