Valley South Subtransmission Project
Final EIR

Cover

Title Page

Executive Summary

                ES.1            Introduction and Background

                ES.2            Environmental Analysis

                ES.3            Alternatives

                ES.4            Summary of Environmental Impacts and Mitigation Measures

A.      Introduction

                A.1              Overview of the Proposed Project

                A.2              Project Objectives, Purpose, and Need

                A.3              Agency Use of this Document

                A.4              Overview of the Environmental Review Process

                A.5              Reader’s Guide to this EIR

B.      Project Description

                B.1               Project Overview

                B.2               Project Location

                B.3               Project Components

                B.4               Project Construction

                B.5               Operation and Maintenance

                B.6               Electric and Magnetic Fields Management

                B.7               Applicant Proposed Measures

C.      Environmental Analysis

                C.1               Introduction to Environmental Analysis

                                C.1.1      Organization of Section C

                                C.1.2      Analytical Assumptions

                                C.1.3      Environmental Assessment Methodology

                                C.1.4      Cumulative Scenario and Methodology

                                C.1.5      Applicant-Proposed Measures

                                C.1.6      Mitigation Monitoring

                C.2               Aesthetics

                                Introduction

                                Scoping Issues Addressed

                                C.2.1      Environmental Setting

                                C.2.2      Regulatory Framework

                                C.2.3      Applicant-Proposed Measures

                                C.2.4      Environmental Impacts and Mitigation Measures

                C.3               Agricultural Resources

                                Introduction

                                Scoping Issues Addressed

                                C.3.1      Environmental Setting

                                C.3.2      Regulatory Framework

                                C.3.3      Applicant-Proposed Measures

                                C.3.4      Environmental Impacts and Mitigation Measures

                C.4               Air Quality

                                Introduction

                                Scoping Issues Addressed

                                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               Biological Resources

                                Introduction

                                Scoping Issues Addressed

                                C.5.1      Environmental Setting

                                C.5.2      Regulatory Framework

                                C.5.3      Applicant-Proposed Measures

                                C.5.4      Environmental Impacts and Mitigation Measures

                C.6               Cultural and Paleontological Resources

                                Introduction

                                Scoping Issues Addressed

                                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               Geology and Soils

                                Introduction

                                Scoping Issues Addressed

                                C.7.1      Environmental Setting

                                C.7.2      Regulatory Framework

                                C.7.3      Applicant-Proposed Measures

                                C.7.4      Environmental Impacts and Mitigation Measures

                C.8               Greenhouse Gas Emissions

                                Introduction

                                Scoping Issues Addressed

                                C.8.1      Environmental Setting

                                C.8.2      Regulatory Framework

                                C.8.3      Applicant-Proposed Measures

                                C.8.4      Environmental Impacts and Mitigation Measures

                C.9               Hazards and Hazardous Materials

                                Introduction

                                Scoping Issues Addressed

                                C.9.1      Environmental Setting

                                C.9.2      Regulatory Framework

                                C.9.3      Applicant-Proposed Measures

                                C.9.4      Environmental Impacts and Mitigation Measures

                C.10           Hydrology and Water Quality

                                Introduction

                                Scoping Issues Addressed

                                C.10.1    Environmental Setting

                                C.10.2    Regulatory Framework

                                C.10.3    Applicant-Proposed Measures

                                C.10.4    Environmental Impacts and Mitigation Measures

                C.11           Land Use and Planning

                                Introduction

                                Scoping Issues Addressed

                                C.11.1    Environmental Setting

                                C.11.2    Regulatory Framework

                                C.11.3    Applicant-Proposed Measures

                                C.11.4    Environmental Impacts and Mitigation Measures

                C.12           Noise

                                Introduction

                                Scoping Issues Addressed

                                General Information on Noise

                                General Information on Vibration

                                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           Recreation

                                Introduction

                                Scoping Issues Addressed

                                C.13.1    Environmental Setting

                                C.13.2    Regulatory Framework

                                C.13.3    Applicant-Proposed Measures

                                C.13.4    Environmental Impacts and Mitigation Measures

                C.14           Transportation and Traffic

                                Introduction

                                Scoping Issues Addressed

                                C.14.1    Environmental Setting

                                C.14.2    Regulatory Framework

                                C.14.3    Applicant-Proposed Measures

                                C.14.4    Environmental Impacts and Mitigation Measures

D.      Alternatives

                D.1              CEQA Requirements

                D.2              Alternatives Screening Methodology

                D.3              Alternatives Retained for Analysis

                D.4              Alternatives Eliminated from Full EIR Evaluation

                D.5              Comparison of Alternatives

E.       Other CEQA Considerations

                E.1               Environmental Effects Found not to be Significant

                E.2               Significant Effects that Can Not be Avoided

                E.3               Irreversible and Irretrievable Commitments of Resources

                E.4               Growth-Inducing Impacts

                E.5               Energy Conservation

                E.6               Intentional Destructive Acts

F.       Public Participation and Consultation

                F.1               Public Participation and Notification

                F.2               Organization and Tribal Consultation

                F.3               EIR Preparers

G.      References

H.      Glossary and Acronyms

Appendices

Appendix 1             Scoping Summary

Appendix 2             Air Quality

Appendix 3             Biological Resources

                                   3-1. Observed Wildlife List

                                   3-2. Plants Observed

Appendix 4             Alternatives Screening Report

Appendix 5             Comments and Responses

Appendix 6             Mitigation Monitoring Plan

Figures

Figure ES-1              Project Location and Vicinity

Figure ES-2              Subtransmission Line Route

Figure A-1               Project Location and Vicinity

Figure A-2               The EIR Process

Figure B-1                Subtransmission Line Route

Figure B-2a             Typical Subtransmission Structures

Figure B-2b             Typical Subtransmission Structures

Figure B-2c              Typical Subtransmission Structures

Figure B-2d             Typical Subtransmission Structures

Figure B-3                Example of Existing Marker Ball (Prior to Installation)

Figure B-4                Typical Subtransmission Vault

Figure B-5                Typical Subtransmission Duct Bank

Figure B-6a             ROW Ownership

Figure B-6b             ROW Ownership

Figure B-6c              ROW Ownership

Figure B-7                Proposed Staging Yards

Figure B-8                Proposed Pull and Tension Sites, Splicing Sites, and Guard Structures

Figure B-9                Proposed Subtransmission Line Route EMF Evaluation Sections

Figure C.1-1            Cumulative Projects

Figure C.2-1            KOP Locations

Figure C.2-2a          KOP 1 Leon Rd. at Simpson Rd. – Existing View

Figure C.2-2b         KOP 1 Leon Rd. at Simpson Rd. – Visual Simulation

Figure C.2-3a          KOP 2 Domenigoni Parkway – Existing View

Figure C.2-3b         KOP 2 Domenigoni Parkway – Visual Simulation

Figure C.2-3c          Linear Viewpoint Map – Domenigoni Parkway

Figure C.2-4a          KOP 3 Northbound Leon Road – Existing View

Figure C.2-4b         KOP 3 Northbound Leon Road – Visual Simulation

Figure C.2-5a          KOP 4 Leon Road at Fowler Drive – Existing View

Figure C.2-5b         KOP 4 Leon Road at Fowler Drive – Visual Simulation

Figure C.2-6a          KOP 5 Lantana Way at Leon Road – Existing View

Figure C.2-6b         KOP 5 Lantana Way at Leon Road – Visual Simulation

Figure C.2-7a          KOP 6 Westbound SR 79 – Existing View

Figure C.2-7b         KOP 6 Westbound SR 79 – Visual Simulation

Figure C.2-8a          KOP 7 Benton Road – Existing View

Figure C.2-8b         KOP 7 Benton Road – Visual Simulation

Figure C.2-9a          KOP 8 Murrieta Hot Springs Road – Existing View

Figure C.2-9b         KOP 8 Murrieta Hot Springs Road – Visual Simulation

Figure C.2-10a       KOP 9 Suzi Lane – Existing View

Figure C.2-10b       KOP 9 Suzi Lane – Visual Simulation

Figure C.3-1a         Farmland Designations

Figure C.3-1b         Farmland Designations

Figure C.3-1c         Farmland Designations

Figure C.4-1           Wind Rose from Perris Valley Monitoring Station (2007-2011)

Figure C.5-1a         Map A Vegetation and Cover Types

Figure C.5-1b         Map B Vegetation and Cover Types

Figure C.5-1c         Map C Vegetation and Cover Types

Figure C.5-1d         Map D Vegetation and Cover Types

Figure C.5-2a         Map A Jurisdictional Features

Figure C.5-2b         Map B Jurisdictional Features

Figure C.5-2c         Map C Jurisdictional Features

Figure C.5-2d         Map D Jurisdictional Features

Figure C.5-2e         Map E Jurisdictional Features

Figure C.5-2f          Map F Jurisdictional Features

Figure C.5-2g         Map G Jurisdictional Features

Figure C.5-3a         Map A CNDDB

Figure C.5-3b         Map B CNDDB

Figure C.5-4a         Map A Special Status Plant Species Occurrences

Figure C.5-4b         Map B Special Status Plant Species Occurrences

Figure C.5-4c         Map C Special Status Plant Species Occurrences

Figure C.5-4d         Map D Special Status Plant Species Occurrences

Figure C.5-5a         Map A Special Status Wildlife Species Occurrences

Figure C.5-5b         Map B Special Status Wildlife Species Occurrences

Figure C.5-5c         Map C Special Status Wildlife Species Occurrences

Figure C.5-5d         Map D Special Status Wildlife Species Occurrences

Figure C.7-1            Regional Geologic Map

Figure C.7-2            Active Regional Faults and Historic Earthquakes

Figure C.12-1          Ambient Noise Monitoring Locations

Figure C.13-1          Parks and Recreational Areas

Figure C.13-2          Trail Locations

Figure D-1               SCE Subtransmission Line Route Alternatives

Figure D-2a             KOP 10 Scott Road- Alternative 1 Existing View

Figure D-2b             KOP 10 Scott Road- Alternative 1 Visual Simulation

Figure D-3               Additional Viewpoint A, Scott Road at Menifee Road, Existing View

Figure D-4               Additional Viewpoint B, Mussa Lane, Existing View

Figure D-5               Partial Underground Alternative

Figure D-6               Typical Subtransmission Duct Bank

Figure D-7               Typical Subtransmission Vault

Figure D-8a             KOP 11 Leon Road- Alternative 2, Existing View

Figure D-8b             KOP 11 Leon Road- Alternative 2, Visual Simulation