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Final Environmental Impact Statement
The complete final EIS is a large document. The Executive Summary (8mb pdf) provides an overview of the National Environmental Policy Act process, the alternatives’ analysis, the co-lead agencies’ Preferred Alternative, and a discussion of the common themes and responses from public comments. This summary will help readers identify portions of the entire document they may want to focus on and read more about.
The table below contains the complete Final EIS broken down into multiple pdf documents.
To see the contents of a document below, click the +
Document Contents: • Table of Contents • Acronyms and Abbreviations • Glossary • Datum Conversion • Chapter 1 - Introduction • Chapter 2 - Alternatives
Document Contents: • Chapter 4 - Climate • Chapter 5 - Mitigation • Chapter 6 - Cumulative Effects • Chapter 7 - Preferred Alternative • Chapter 8 - Compliance with Environmental Laws, Regulations, and Executive Orders • Chapter 9 - Coordination and Public Involvement Process • Chapter 10 - Preparers • Chapter 11 - References • Chapter 12 - List of Appendices • Chapter 13 - Index
Document Contents: • Appendix A - Alternatives Development • Appendix B - Hydrology and Hydraulics Data Analyses
Document Contents: • Appendix C - River Mechanics
Document Contents:• Appendix D - Water and Sediment Quality
Document Contents: • Appendix E - Fish, Aquatic Macroinvertebrates, and Aquatic Habitat
Document Contents: • Appendix F - Vegetation, Wetlands, and Wildlife • Appendix G - Air Quality and Greenhouse Gases • Appendix H - Power and Transmission • Appendix I - Hydroregulation • Appendix J - Hydropower • Appendix K - Flood Risk Management • Appendix L - Navigation and Transportation • Appendix M - Recreation • Appendix N - Water Supply Physical and Socioeconomic Methods and Analysis • Appendix O - Environmental Justice • Appendix P - Tribal Perspectives • Appendix Q - Cost Analysis • Appendix R - Monitoring and Adaptive Management • Appendix S - Public Scoping Report for CRSO Environmental Impact Statement
Document Contents: • Appendix T - Public Comment Report
Document Contents: • Appendix U - Fish and Wildlife Coordination Act
Document Contents: • Columbia River System Biological Assessment
Document Contents: • NMFS’ Endangered Species Act Section 7(a)(2) Biological Opinion for the Continued Operation and Maintenance of the Federal Columbia River Power System
Document Contents: • USFWS’ Endangered Species Act Section 7 Biological Opinion for the Operations and Maintenance of the 14 Federal Dams and Reservoir in Washington, Oregon, Idaho, and Montana
Document Contents: • Appendix W - Clean Water Act Section 404(b)(1) Evaluation • Appendix X - Independent External Peer Review Report
The table below contains supporting research documents for each dam.