
The state of Washington works with the Federal Energy Regulatory Commission (FERC) licensing process for hydropower dams. When an applicant requests a license, either to re-license an existing dam or for new construction, Ecology works with the utility, reviews studies, analyses and plans. If Ecology determines that water quality standards are attainable, a 401 certification is issued with conditions to ensure that the standards will be met. These conditions become part of the new FERC license.

License Schedule for Washington State (PDF)
Existing 401 Certifications for Dams
Draft Water Quality Certifications for Public Review
FERC Guidance Team (PDF)
Links to other programs and activities
For more information please contact:
Susan Braley Lead FERC Guidance Development Water Quality Program WA Department of Ecology P.O. Box 47600 Olympia, WA 98504-7600 Phone: (360) 407-6414 e-mail: ferc401@ecy.wa.gov
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