STATE OF CALIFORNIA
PUBLIC UTILITIES COMMISSION

Southern California Edison's
Antelope Transmission Project, Segments 2 and 3


Environmental Impact Report

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Table of Contents

Executive Summary

ES.1. Introduction/Background
ES.2. Summary Description of Proposed Project
ES.3. Alternatives
ES.4. Summary of Impacts and Mitigation Measures
ES.5. Summary Comparison of Alternatives
Figure ES-1. Regional Location
Figure ES-2. Proposed Project and Alternatives

A.  Introduction

A.1. Overview of Proposed Project
A.2. Project Objectives
A.3. The Antelope Transmission Project
A.4. Agency Use of this Document
A.5. Overview of the Environmental Review Process
A.6. Reader's Guide to this Document

B.  Description of Proposed Project

B.1. Introduction
B.2. Proposed Facilities and Modifications
B.3. Project Construction
B.4. Facility Operations and Maintenance
Figure B.1-1. Regional Location Map
Figure B.2-1. Proposed Project Route and Options
Figure B.2-2. Examples of Lattice Steel Towers
Figure B.2-3. Examples of Tubular Steel Poles
Figure B.2-4. Existing and Proposed ROW Configurations for Mile S3-0.0 to Mile S3-5.2
Figure B.2-5. Existing and Proposed ROW Configurations for Mile S3-5.2 to Mile S3-7.2
Figure B.2-6. Existing and Proposed ROW Configurations for Mile S3-7.2 to Mile S3-7.9
Figure B.2-7. Existing and Proposed ROW Configurations for Mile S3-7.9 to Mile S3-9.0
Figure B.2-8. Proposed ROW Configurations for Mile S3-9.0 to Mile S3-9.6
Figure B.2-9. Proposed ROW Configurations for Mile S3-9.6 to Mile S3-16.3
Figure B.2-10. Proposed ROW Configurations for Mile S3-16.3 to Mile S3-22.0
Figure B.2-11. Existing and Proposed ROW Configurations for Mile S3-22.1 to Mile S3-23.2
Figure B.2-12. Proposed ROW Configurations for Mile S3-23.2 to Mile S3-33.8
Figure B.2-13. Existing and Proposed ROW Configurations for Mile S3-33.8 to Mile 35.0
Figure B.2-14. Existing and Proposed ROW Configurations for Mile S2-0.2 to Mile S2-1.9
Figure B.2-15. Existing and Proposed ROW Configurations for Mile S2-1.9 to Mile S2-4.4
Figure B.2-16. Existing and Proposed ROW Configurations for Mile S2-4.4 to Mile S2-8.1
Figure B.2-17. Proposed ROW Configuration for Mile S2-8.1 to Mile S2-10.6
Figure B.2-18. Existing and Proposed ROW Configurations for Mile S2-10.6 to Mile S2-14.0
Figure B.2-19. Existing and Proposed ROW Configurations for Mile S2-14.0 to Mile S2-14.8
Figure B.2-20. Line Diagram of the Connection to Midway-Vincent No. 3 at Mile S2-14.8
Figure B.2-21. Line Diagram of Proposed Project and New Midway-Vincent No. 3 Connections to Vincent Substation
Figure B.2-22. Existing and Proposed ROW Configurations for Mile S2-14.8 to Mile S2-19.5
Figure B.2-23. Existing and Proposed ROW Configurations for Mile S2-19.5 to Mile S2-21.0
Figure B.2-24. Option A to the Proposed Project
Figure B.2-25. Option B to the Proposed Project
Figure B.2-26. Proposed Substation Two Plot Plan
Figure B.2-27. Proposed Substation One Plot Plan
Figure B.2-28. Antelope Substation Plot Plan Detailing Proposed Modification
Figure B.2-29. Vincent Substation Plot Plan Detailing Proposed Modification
Figure B.3-1. Typical Guard Structure

C.  Environmental Analysis

C.1  Introduction to Environmental Analysis
C.1.1. Section Content and Organization
C.1.2. Environmental Analysis Methodology
C.1.3. Significance Categories
C.2  Air Quality
C.2.1. Environmental Setting
C.2.2. Regulatory Framework
C.2.3. Applicant-Proposed Measures
C.2.4. Environmental Impacts and Mitigation Measures
Figure C.2-1. Air Basin/Air District Jurisdiction Map
Figure C.2-2. Normalized Maximum Short-term Historical Air Pollutant Concentrations - Lancaster (figure embedded in text)
Figure C.2-3. Normalized Maximum Short-term Historical Air Pollutant Concentrations - Mojave (figure embedded in text)
C.3  Biological Resources
C.3.1. Environmental Setting
C.3.2. Regulatory Framework
C.3.3. Biotic Surveys
C.3.4. Special-Status Plant and Wildlife Species
C.3.5. Regulated Habitats
C.3.6. Applicant-Proposed Measures
C.3.7. Environmental Impacts and Mitigation Measures
C.3.8. Indirect Impacts
Figure C.3-1. Project Area
Figure C.3.2. Project Study Area
Figure C.3-3a. Biotic Habitats
Figure C.3-3b. Biotic Habitats
Figure C.3-4. CNDDB
C.4  Cultural Resources
C.4.1. Environmental Setting
C.4.2. Regulatory Framework
C.4.3. Applicant-Proposed Measures
C.4.4. Environmental Impacts and Mitigation Measures
C.5  Geology, Soils, and Paleontology
C.5.1. Environmental Setting
C.5.2. Regulatory Framework
C.5.3. Applicant-Proposed Measures
C.5.4. Environmental Impacts and Mitigation Measures
Figure C.5-1. Segment 3 Regional Geology Map
Figure C.5-2. Segment 2 Regional Geology Map
Figure C.5-3. Regional Faults and Earthquakes
Figure C.5-4. Alquist-Priolo Fault Zones
C.6  Hazards and Hazardous Materials
C.6.1. Environmental Setting
C.6.2. Regulatory Framework
C.6.3. Applicant-Proposed Measures
C.6.4. Environmental Impacts and Mitigation Measures
C.7  Hydrology and Water Quality
C.7.1. Environmental Setting
C.7.2. Regulatory Framework
C.7.3. Applicant-Proposed Measures
C.7.4. Environmental Impacts and Mitigation Measures
Figure C.7-1. Watershed Boundaries and Surface Water Bodies in the Proposed Project Area
Figure C.7-2. Hydrologic Sub-Areas (HSAs) Crossed by the Proposed Project
Figure C.7-3. FEMA-designated Flood Hazard Areas
Figure C.7-4. Groundwater Resources in the Proposed Project Area
C.8  Land Use
C.8.1. Environmental Setting
C.8.2. Regulatory Framework
C.8.3. Applicant-Proposed Measures
C.8.4. Environmental Impacts and Mitigation Measures
Figure C.8-1. Land Uses along Project and Alternative Routes
C.9  Agriculture
C.9.1. Environmental Setting
C.9.2. Regulatory Framework
C.9.3. Applicant-Proposed Measures
C.9.4. Environmental Impacts and Mitigation Measures
Figure C.9-1. Agricultural Lands: Mile S3-0 to Mile S3-2.8
Figure C.9-2. Agricultural Lands: Mile S3-209 to Mile S3-12.8
Figure C.9-3. Agricultural Lands: Mile S3-12.9 to Mile S3-17.3
Figure C.9-4. Agricultural Lands: Mile S3-17.4 to Mile S3-21.9
Figure C.9-5. Agricultural Lands: Mile S3-22 to Mile S3-26.6
Figure C.9-6. Agricultural Lands: Mile S3-26.7 to Mile S3-31.1
Figure C.9-7. Agricultural Lands: Mile S3-31.2 to Mile S2-1.2
Figure C.9-8. Agricultural Lands: Mile S2-1.3 to Mile S2-6.8
Figure C.9-9. Agricultural Lands: Mile S2-6.9 to Mile S2-16.6
Figure C.9-10. Agricultural Lands: Mile S2-16.7 to Mile S2-21.6
C.10  Noise
C.10.1. Environmental Setting
C.10.2. Regulatory Framework
C.10.3. Applicant-Proposed Measures
C.10.4. Environmental Impacts and Mitigation Measures
Figure C.10-1. Typical Range of Common Sounds heard in the Environment
Figure C.10-2. Outdoor Day/Night Sound Levels in Different Areas
C.11  Visual Resources
C.11.1. Environmental Setting
C.11.2. Regulatory Framework
C.11.3. Applicant-Proposed Measures
C.11.4. Environmental Impacts and Mitigation Measures
Figure C.11-1A. Key Observation Position Map (North)
Figure C.11-1B. Key Observation Position Map (South)
Figure C.11-2A. Existing Visual Condition as seen from KOP 1
Figure C.11-2B. Visual Simulation of the Proposed Project as seen from KOP 1
Figure C.11-3A. Existing Visual Condition as seen from KOP 2
Figure C.11-3B. Visual Simulation of the Proposed Project as seen from KOP 2
Figure C.11-4A. Existing Visual Condition as seen from KOP 3
Figure C.11-4B. Visual Simulation of the Proposed Project as seen from KOP 3
Figure C.11-5A. Existing Visual Condition as seen from KOP 4
Figure C.11-5B. Visual Simulation of the Proposed Project as seen from KOP 4
Figure C.11-6A. Existing Visual Condition as seen from KOP 5
Figure C.11-6B. Visual Simulation of the Proposed Project as seen from KOP 5
Figure C.11-7A. Existing Visual Condition as seen from KOP 6
Figure C.11-7B. Visual Simulation of the Proposed Project as seen from KOP 6
Figure C.11-8A. Existing Visual Condition as seen from KOP 7
Figure C.11-8B. Visual Simulation of the Proposed Project as seen from KOP 7
Figure C.11-9A. Existing Visual Condition as seen from KOP 8
Figure C.11-9B. Visual Simulation of the Proposed Project as seen from KOP 8
Figure C.11-10A. Existing Visual Condition as seen from KOP 9
Figure C.11-10B. Visual Simulation of the Proposed Project as seen from KOP 9
Figure C.11-11A. Existing Visual Condition as seen from KOP 10
Figure C.11-11B. Visual Simulation of the Proposed Project as seen from KOP 10
Figure C.11-12A. Existing Visual Condition as seen from KOP 11
Figure C.11-12B. Visual Simulation of the Proposed Project as seen from KOP 11
Figure C.11-13A. Existing Visual Condition as seen from KOP 12
Figure C.11-13B. Visual Simulation of the Proposed Project as seen from KOP 12
Figure C.11-14A. Existing Visual Condition as seen from KOP 13
Figure C.11-14B. Visual Simulation of the Proposed Project as seen from KOP 13
Figure C.11-15A. Existing Visual Condition as seen from KOP 14
Figure C.11-15B. Visual Simulation of the Proposed Project as seen from KOP 14
C.12  Traffic and Transportation
C.12.1. Environmental Setting
C.12.2. Regulatory Framework
C.12.3. Applicant-Proposed Measures
C.12.4. Environmental Impacts and Mitigation Measures
C.13  Population and Housing
C.13.1. Environmental Setting
C.13.2. Regulatory Framework
C.13.3. Applicant-Proposed Measures
C.13.4. Environmental Impacts and Mitigation Measures

D.  Alternatives Analysis

D.1. Introduction
D.2. Project Alternatives Overview and Screening
D.3. Descriptions of Alternatives Analyzed
D.4. Analysis of Alternatives
D.5. Comparison of Alternatives
Figure D.2-1. Substation 2B to Substation One
Figure D.2-2. Substation 1B to Antelope
Figure D.2-3. Substation One to Antelope
Figure D.2-4. Lancaster-Palmdale Underground (Segment 2)
Figure D.3-1. Alternative 1: Substation 2C to Substation One via Cameron Canyon Road (Segment 3B)
Figure D.3-2. Alternative 2: Substation 1B to Antelope via 100th Street (Segments 3A/3B)
Figure D.3-3. Alternative 3: Antelope-Vincent Re-route 1 (Segment 2)
Figure D.3-4. Alternative 4: Antelope-Vincent Re-route 2 (Segment 2)
Figure D.4-1A. Existing Visual Condition as seen from KOP-15
Figure D.4-1B. Visual Simulation of the Proposed Project as seen from KOP-15
Figure D.4-2A. Existing Visual Condition as seen from KOP-16
Figure D.4-2B. Visual Simulation of the Proposed Project as seen from KOP-16

E.  Other CEQA Considerations

E.1. Long-Term Implications
E.2. Effects Found Not to be Significant
Figure E-1A. Cumulative Map
Figure E-1B. Cumulative Map

F.  Public Participation and Notification

F.1. Notices of Preparation
F.2. Scoping Process
F.3. Notice of Completion and Availability
F.4. Draft EIR Public Meetings
F.5. Document Repository Sites
F.6. Draft EIR Distribution List

G.  References and Organizations/Persons Consulted

G.1. References
G.2. Organizations and Persons Consulted

H.  Glossary/Acronyms

H.1. Glossary of Terms H.2. Acronyms

I.  List of Preparers



Appendices

Appendix 1. Notice of Preparation
Appendix 2. Electric and Magnetic Fields (EMF)
Appendix 3. Air Quality Calculations
Appendix 4. Proposed Project and Alternative Route Maps (3 MB)
Appendix 5. Biological Resources Data
Appendix 6. Property Values
Appendix 7. Responses from the Native American Heritage Commission (3 MB)
Appendix 8. Draft EIR Comments and Responses
A. Public Agencies and Elected Officials
Comment Set A.1: Jim Porter, California State Lands Commission
Comment Set A.2: City of Palmdale
Comment Set A.3: Department of Fish and Game - South Coast Region
Comment Set A.4: County of Los Angeles, Department of Parks and Recreation
Comment Set A.5: Department of Fish and Game - San Joaquin Valley and Southern Sierra Region
Comment Set A.6: Michael Antonovich, Los Angeles County Board of Supervisors
Comment Set A.7: Suk Chong, LA County Dept. of Public Works
Comment Set A.8: Valerie Connor, State Water Resources Control Board
Comment Set A.9: Senator George Runner
Comment Set A.10: Sharon Runner, Assemblywoman, 36th District
Comment Set A.11: Cheryl L. Powell, California Department of Transportation
B. Groups, Organizations, and Companies
Comment Set B.1: Jackson, DeMarco, Tidus, and Peckenpaugh
Comment Set B.2: Lauren Development
Comment Set B.3: Manatt, Phelps, Phillips for Anaverde LLC
Comment Set B.4: Greater Antelope Valley Association of Realtors
Comment Set B.5: Mark Campbell, Antelope Valley Archaeological Society Environmental Review Committee
Comment Set B.6: Mark Campbell, Antelope Valley Archaeological Society Environmental Review Committee
Comment Set B.7: Harold M. Romanowitz, Oak Creek Energy Systems
Comment Set B.8: Duane Morris, Palmdale Hills Property, LLC
Comment Set B.9: Robert Abel, Westside Union School District
Comment Set B.10: Mat Havens, Antelope Valley Union High School District
C. Individuals
Comment Set C.1: Grace Lam
Comment Set C.2: Marcella E. Mahan
Comment Set C.3: Allen Wessel
Comment Set C.4: David and Janice Gantenbein
Comment Set C.5: Bernard and Laurie Staschik
Comment Set C.6: Gary and Beth Warford
Comment Set C.7: Jacqueline Ayer
Comment Set C.8: Judy Boswell-Hudspeth
Comment Set C.9: Karen Crawford
Comment Set C.10: Karen Bryan
Comment Set C.11: Kelley Michel
Comment Set C.12: Nita Levin
Comment Set C.13: Marcy Watton
Comment Set C.14: John and Deanna Cosola
Comment Set C.15: Pat and Eric Gordon
Comment Set C.16: Gerald E. McHale
Comment Set C.17: Gordon and Melody Swartz
Comment Set C.18: Grace Lam
Comment Set C.19: Janet Winters
Comment Set C.20: Richard G. Alvarez
Comment Set C.21: Jeanette Clark
Comment Set C.22: Lannie Dean Webb
Comment Set C.23: Linda-Marcella Berg
Comment Set C.24: Mary Ann Floyd
Comment Set C.25: Ray Mullins
Comment Set C.26: Richard and Gayle Clayton
Comment Set C.27: Ronald Michel
Comment Set C.28: Gordon and Melody Swartz
Comment Set C.29: Steve and Kelli Sandusky
Comment Set C.30: Toma, Chris, Kelly, and Jack Tapia; Bea, Darik, Daryl, Linda, David, and Jamie Bolin
Comment Set C.31: Vickie Nelson
Comment Set C.32: William L. Tyler
Comment Set C.33: Jacqueline Ayer
Comment Set C.34: Vance G. and Juanita Kirkpatrick
Comment Set C.35: Mr. and Mrs. Toby Janowits
Comment Set C.36: Richard B. Thomas
Comment Set C.37: Rolf W. Linden and Janna Smith-Linden
Comment Set C.38: Mary Ann and Richard Floyd
Comment Set C.39: Lyle and Ann Rancier
Comment Set C.40: Jayne Ridgway
Comment Set C.41: George Webb
Comment Set C.42: Dale Webb
Comment Set C.43: Jerry and Aleta Dupuis
Comment Set C.44: Jeff and Laura Wright
Comment Set C.45: George and Marian Wright (1)
Comment Set C.46: George and Marian Wright (2)
D. Public Meetings
Comment Set D.1: October 11, 2006, Public Hearing Transcript
Comment Set D.2: October 12, 2006, Public Hearing Transcript
E. Applicant (Southern California Edison)
Comment Set E.1: Applicant - Global Comments
Comment Set E.2: Applicant - Executive Summary
Comment Set E.3: Applicant - Introduction
Comment Set E.4: Applicant - Description of Proposed Project
Comment Set E.5: Applicant - Air Quality
Comment Set E.6: Applicant - Biological Resources
Comment Set E.7: Applicant - Cultural Resources
Comment Set E.8: Applicant - Geology, Soils, and Paleontology
Comment Set E.9: Applicant - Hazards and Hazardous Materials
Comment Set E.10: Applicant - Hydrology and Water Quality
Comment Set E.11: Applicant - Land Use
Comment Set E.12: Applicant - Agricultural Resources
Comment Set E.13: Applicant - Noise
Comment Set E.14: Applicant - Visual Resources Global Comments
Comment Set E.15: Applicant - Visual Resources
Comment Set E.16: Applicant - Traffic and Transportation
Comment Set E.17: Applicant - Population and Housing
Comment Set E.18: Applicant - Alternatives Analysis
Comment Set E.19: Applicant - Other CEQA Considerations
Appendix 9. Mitigation Monitoring Plan

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