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DECOMMISSIONING PLAN FOR THE BULL RUN HYDROELECTRIC PROJECT FERC Project No. 477
DECOMMISSIONING PLAN
FOR THE BULL RUN HYDROELECTRIC PROJECT
FERC Project No. 477
Filed by
PORTLAND GENERAL ELECTRIC COMPANY
With the
FEDERAL ENERGY REGULATORY COMMISSION
OFFICE OF HYDROPOWER LICENSING
WASHINGTON, D.C.
November 2002 Bull Run Hydroelectric Project
Portland General Electric Company
FERC Project No. 477
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Decommissioning Plan
Table of Contents
1.
Introduction............................................................................................................................. 1
1.1 Project Description.............................................................................................................. 2
1.1.1 Project Features........................................................................................................... 2
1.1.2 Existing Project Operations ........................................................................................ 4
2.
Detailed Project Removal Methodology and Schedule .......................................................... 6
2.1 Overview of Removal Methodology and Schedule ............................................................ 6
2.2 Marmot Dam Removal ..................................................................................................... 15
2.3 Little Sandy Dam .............................................................................................................. 17
2.4 Flume ................................................................................................................................ 17
2.5 Canals................................................................................................................................ 18
2.6 Tunnels.............................................................................................................................. 19
2.7 Roslyn Lake ...................................................................................................................... 19
2.8 Power House, Transformer Building, Shops, and Office Building .................................. 19
2.9 Switchyard ........................................................................................................................ 20
2.10
Car Barn ........................................................................................................................ 20
3.
Mitigation Measures ............................................................................................................. 21
3.1 Operations Prior to Removal ............................................................................................ 21
3.2 Revegetation, Noxious Weed Control and Site Restoration............................................. 22
3.3 Fish Passage ...................................................................................................................... 22
3.4 ESA Aquatic Habitat Impact Minimization Measures ..................................................... 22
3.5 Sandy River Fall Chinook Salmon Conservation Program .............................................. 23
3.6 Historic Preservation......................................................................................................... 24
3.7 Navigation and Boater Safety ........................................................................................... 24
4.
Monitoring ............................................................................................................................ 25
4.1 Pre-removal Geomorphic Monitoring............................................................................... 25
4.2 Water Quality.................................................................................................................... 25
4.2.1 Pre-Removal Turbidity Monitoring .......................................................................... 25
4.2.2 Turbidity Monitoring During Structure Removal..................................................... 27
4.2.3 Post Removal Turbidity Monitoring......................................................................... 27
4.2.4 Sediment Monitoring ................................................................................................ 27
4.3 Stream Gages .................................................................................................................... 27
4.4 Monitoring of Construction Impacts................................................................................. 28
4.5 Site Restoration and Monitoring....................................................................................... 28
4.6 ESA Fish Monitoring and Contingencies Plan ................................................................. 29
4.7 Monitoring Channel Complexity and Fish Passage to Determine PGE Endpoint............ 39
4.7.1 Strategy ..................................................................................................................... 39
4.7.2 Proposed Channel Complexity Monitoring .............................................................. 40
4.7.3 Proposed Channel Complexity Analysis .................................................................. 40
4.7.4 Proposed Monitoring Sites........................................................................................ 40
4.7.5 Duration of Monitoring............................................................................................. 41
4.8 Endangered and Threatened Terrestrial Species............................................................... 42
4.9 Other Basin Monitoring and Research Program............................................................... 42
5.
Disposition of PGE Lands .................................................................................................... 43 Bull Run Hydroelectric Project
Portland General Electric Company
FERC Project No. 477
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Decommissioning Plan
6.
Transfer of Water Rights ...................................................................................................... 43
7.
Coordination Mechanisms .................................................................................................... 44
7.1 PGE Organization ............................................................................................................. 44
7.2 Coordinating Committee................................................................................................... 45
7.3 ESA Monitoring and Implementation Team..................................................................... 45
7.3.1 Structure and Function:............................................................................................. 45
7.3.2 Immediate Response ................................................................................................. 46
7.3.3 Deliberative Response .............................................................................................. 47
7.3.4 Endpoint Response.................................................................................................... 47
7.3.5 Roles and Responsibilities ........................................................................................ 48
7.4 Cost Summary................................................................................................................... 49
List of Tables
Table 4-1. Sandy River ESA Fish Monitoring and Contingencies Plan.......................................33
List of Figures
Figure 1-1. Sandy River Basin and Bull Run Hydroelectric Project Location Map.......................3
Figure 1-2. Map of the Sandy River Basin showing principal Bull Run Project features..............5
Figure 2-1. Removal Schedule for Surrender Application for the Bull Run Decommissioning
Project...........................................................................................................................9
Figure 4-1. Sandy River geomorphic reaches delineated by Stillwater Sciences.........................26
Figure 7-1. PGE organizational structure for decommissioning of the Bull Run Project. ...........44
Exhibits
Exhibit A: Revegetation, Noxious Weed Control and Site Restoration Plan
Exhibit B: Pre-implementation Analysis of Geomorphic and Ecological Impacts of
Removing Marmot Dam on the Sandy River, OR: Proposal to Portland
General Electric
Exhibit C: Preliminary fish passage monitoring plan for the Sandy River following
the removal of Marmot Dam (June 21, 2002).
Appendices
Appendix A: PGE-ODFW Marmot Dam Fish Ladder Agreement
Appendix B: Sandy River Fall Chinook Salmon Conservation Program
Appendix C: Other Basin Monitoring Opportunities
Appendix D: Disposition of PGE Lands Bull Run Hydroelectric Project
Portland General Electric Company
FERC Project No. 477
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Decommissioning Plan
DECOMMISSIONING PLAN
1.
Introduction
Portland General Electric Company (PGE or Company), the licensee for the Bull Run
Hydroelectric Project, FERC Pr