Section 401 Hydropower Certification

DEQ issues 401 certifications for hydroelectric projects and the Federal Energy Regulatory Commission administers the federal licensing process. The water quality certification typically includes operating conditions designed to ensure project operations will not violate water quality standards.

DEQ coordinates the section 401 certification licensing process with Oregon's hydroelectric water rights program administered by the Oregon Water Resources Department and conducted independently under the state's administrative rules (OAR 340-048).

Section 401 Certification Public Comment

Clackamas River Hydroelectric Project - License Amendment - FERC Project No. 2195

Evaluation and Findings Report: Section 401 Water Quality Certification for the Amendment to the Clackamas River Hydroelectric Project

Notice of Public Hearing: PGE's Proposed Water Quality Certification

Draft Clean Water Act Section 401 Certification Conditions

Clackamas River Project - Water Quality Management and Monitoring Plan

Ongoing 401 Hydropower Projects

Hells Canyon Complex Hydroelectric Project - FERC Project No. 1971

DEQ is working with stakeholders and Idaho Power Company on the 401 certification process for the Hell's Canyon Complex

• Brownlee Reservoir Water Quality Report
• Brownlee Reservoir Water Quality Attachments
• (courtesy Idaho Power Company)

Final 401 Hydropower Certifications

Applegate Dam Hydroelectric Project - FERC Project No. 11910

• Certification Letter
• Certification Conditions
• Evaluation and Findings Report

Bull Run Hydroelectric Project - FERC Project No. 477

• Certification Conditions
• Erosion and Sediment Control Plan
• Turbidity Management Plan

Bull Run Reservoir #2 Hydroelectric Project - FERC Project No. 2821

• Certification Letter
• Certification Conditions
• Evaluation and Findings Report

Carmen-Smith Hydroelectric Project - FERC Project No. 2242

• Certification Letter
• Certification Conditions
• Evaluation and Findings Report

Dorena Dam Hydroelectric Project - FERC Project No. 11945

• Certification Letter
• Certification Conditions
• Evaluation and Findings Report

Fall Creek Hydroelectric Project - FERC Project No. 12778

• Certification Letter
• Certification Conditions
• Evaluation and Findings Report

North Umpqua Hydroelectric Project - FERC Project No. 1927

• Certification Conditions

PacifiCorp Energy Prospect Nos. 1,2 and 4 Hydroelectric Project FERC Project No. 2630

• Certification Conditions

Pelton-Round Butte Hydroelectric Project - FERC Project No. 2030

• Certification Conditions

PGE Clackamas Hydroelectric Project - FERC Project No. 2195

• 401 Certification and Conditions
• Clackamas River Project Water Quality Management and Monitoring Plan
• Clackamas River TMDL Order
• Clackamas River Project Total Maximum Daily Load Implementation Plan
• Final Evaluation and Findings

Powerdale Hydroelectric Project - FERC Project No. 2659

• Certification Conditions

Reedsport OPT Wave Park Hydroelectric Project - FERC Project No. 12713

• Certification Letter
• Certification Conditions
• Evaluation and Findings Report

Willamette Falls Hydroelectric Project - FERC Project No. 2233

• 401 Certificate
• Certification Conditions and Water Quality Management Plan

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