2022 Gulf of Alaska Final Supplemental EIS/OEIS Documents

Volume

Section

Volume 1 Volume 2

Cover Abstract Executive Summary Table of Contents Acronyms and Abbreviations 1. Purpose and Need 2. Description of Proposed Action and Alternatives 3. Affected Environment and Environmental Consequences 3.6 Fishes 3.7 Sea Turtles 3.8 Marine Mammals 3.9 Birds 3.11 Socioeconomic Resources and Environmental Justice 4. Cumulative Impacts 5. Mitigation 6. Additional Regulatory Considerations 7. List of Preparers Appendix A: Navy Activities Descriptions Appendix B: Acoustic and Explosive Concepts Appendix C: Estimated Marine Mammal and Sea Turtle Impacts from Exposure to Acoustic and Explosive Stressors Under Navy Training Activities Appendix D: Federal Register Notices Appendix E: Agency Correspondence Appendix F: Public Participation Appendix G: Public Comments and Responses

2022 Final Supplemental EIS/OEIS Supporting Technical Documents

• Criteria and Thresholds for U.S. Navy Acoustic and Explosive Effects Analysis (Phase III) (June 2017)
• Dive Distribution and Group Size Parameters for Marine Species Occurring in the U.S. Navy’s Gulf of Alaska Study Area (Nov. 2020)
• Marine Mammal Strandings Associated with U.S. Navy Sonar Activities (June 2017)
• U.S. Navy Marine Species Density Database Phase III for the Gulf of Alaska Temporary Maritime Activities Area (Amended Nov. 2021)
• Quantifying Acoustic Impacts on Marine Mammals and Sea Turtles: Methods and Analytical Approach for Phase III Training and Testing (August 2018)

Gulf of Alaska Record of Decision for Final Supplemental EIS/OEIS (December 2022)

• 2022 Gulf of Alaska Record of Decision for Final Supplemental EIS/OEIS