
This section includes revisions that were made resulting from design refinements and from comments received on the Draft EIR/EIS. This also includes two revised chapters that were published in their entirety for clarity in presentation of the revisions.
Chapter 3 Affected Environment, Environmental Consequences, and Mitigation Measures
These appendices provide additional technical information that supports the analysis and conclusions in Volume 1 of the Draft EIR/EIS and Final EIR/Proposed Final EIS. Any changes to these appendices are explained in Volume 1, Chapter 16.
Appendix 3.1-A: Regional and Local Policy Inventory and Consistency Analysis
Appendix 3.2-C: 2015 Baseline Conditions Traffic Counts Validation
Appendix 3.2-D: Horizon Year 2040 Post-Mitigation Level of Service
Appendix 3.5-A: Preconstruction Electromagnetic Measurement Survey
Appendix 3.6-A: Water Use and Energy Analysis Technical Appendix
Appendix 3.10-A: Potential Environmental Concern Sites and Figures
Appendix 3.12-F: Children’s Health and Safety Risk Assessment
Appendix 3.19-A: Cumulative Plans and Nontransportation Projects List
Appendix 4-A: Park and Recreation Areas Evaluated for Section 4(f) Use
Appendix 4-B: Cultural Resources Evaluated for Section 4(f) Use
Appendix 4-D: U.S. Department of the Interior Concurrence Letter
Appendix 6-B: 2026 Business Plan Technical Supporting Document: Capital Cost Basis of Estimate Report
Appendix 9-A: Comprehensive List of Public and Agency Meetings
The Authority has revised several engineering sheets from the Draft EIR/EIS Volume 3 in response to comments, which are presented in the following subvolumes. The User Guide explains how to navigate the revised subvolumes. The reasons for the revisions are explained in Volume 1, Chapter 16, and the types of revisions are described in the Volume 3 Cover Page and Index of Drawings. The unrevised Volume 3 sheets are available on this website, with the Draft EIR/EIS public circulation materials.
Volume 3.2: General, Aerial Structures, Tunnels, and Retaining Walls
Volume 3.4: General, Utilities, Grading/Drainage, Traction Power, and Communication Towers
Volume 3.6: General and 15th Street LMF III and HSR Norwalk/Santa Fe Springs and Fullerton Station Options
This section includes comments received on the Draft EIR/EIS and the responses to these comments.
Transportation Technical Report
Air Quality and Global Climate Change Technical Report
Noise and Vibration Technical Report
Biological and Aquatic Resources Technical Report
Aquatic Resources Delineation Report
Paleontological Resources Technical Report
Hazardous Materials and Wastes Technical Report
Supplement to the Hazardous Materials and Wastes Technical Report
Community Impact Assessment
Draft Relocation Impact Report
Aesthetics and Visual Quality Technical Report