Southern California Edison Company's Riverway Substation Project

(Application A.06-06-004, filed June 1, 2006)


Final Mitigated Negative Declaration and Initial Study

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A.  Mitigated Negative Declaration
Project Description
Environmental Determination
B.  Initial Study
B.1  Project Description
B.1.1. Project Title
B.1.2. Project Sponsor's Name and Address
B.1.3. Lead Agency Name and Address
B.1.4. Lead Agency Contact Person and Phone Number
B.1.5. Project Location
B.1.6. Surrounding Land Uses and Setting
B.1.7. General Plan Designation
B.1.8. Zoning
B.1.9. Project Overview
B.1.10. Project Components
B.1.11. Project Construction Methods
B.1.12. Operations and Maintenance
B.1.13. Applicant Proposed Measures
B.1.14. EMF Summary
B.1.15. Other Public Agencies Whose Approval is Required
Fig. B.1-1. Regional Map
Fig. B.1-2. Project Area
Fig. B.1-3. Proposed Substation Site and Subtransmission Route
Fig. B.1-4. SCE Rector System within Electrical Needs Area
Fig. B.1-5. Substation Capacity and Peak Demand in Electrical Needs Area
Fig. B.1-6. Proposed Substation Site Diagram
Fig. B.1-7. Proposed Project Underground Subtransmission Route
Fig. B.1-8. Tubular Steel Pole for Transition to Underground Subtransmission Route
Fig. B.1-9. Proposed Fiber Optic Cable Installation
Fig. B.1-10. Site Access
Fig. B.1-11. Proposed Pulling Sites for Subtransmission Line Construction
B.2.  Environmental Determination
B.2.1. Environmental Factors Potentially Affected
B.2.2. Environmental Determination
B.3  Environmental Analysis and Mitigation
B.3.1. Aesthetics
B.3.2. Agricultural Resources
B.3.3. Air Quality
B.3.4. Biological Resources
B.3.5. Cultural Resources
B.3.6. Geology and Soils
B.3.7. Hazards and Hazardous Materials
B.3.8. Hydrology and Water Quality
B.3.9. Land Use and Planning
B.3.10. Mineral Resources
B.3.11. Noise
B.3.12. Population and Housing
B.3.13. Public Services
B.3.14. Recreation
B.3.15. Transportation/Traffic
B.3.16. Utilities and Service Systems
B.3.17. Mandatory Findings of Significance
Figs. B.3-1 and B.3-2
Fig. B.3-1. Looking East from North Mooney Boulevard Extension toward Substation Site
Fig. B.3-2. Looking West from North Mooney Boulevard Extension away from Substation Site
Figs. B.3-3 and B.3-4
Fig. B.3-3. Looking East on Riggin Avenue from North Mooney Boulevard Intersection
Fig. B.3-4. Looking Northwest from Riggin Avenue toward Substation Site
Fig. B.3-5. Location of Key Observation Point 1, Looking Northwest from Riggin Avenue
Figs. B.3-6A and B.3-6B
Fig. B.3-6A. KOP 1: Looking Northwest from Riggin Avenue toward Substation Site
Fig. B.3-6B. Simulation of New Substation Looking Northwest from Riggin Avenue
Figs. B.3-7A and B.3-7B
Fig. B.3-7A. KOP 2: Looking Northeast from Riggin Avenue toward Substation Site
Fig. B.3-7B. Simulation of New TSP Riser and Substation Looking Northeast from Riggin Avenue
Figs. B.3-8A and B.3-8B
Fig. B.3-8A. Alternative Substation Site in 2006 without Substation
Fig. B.3-8B. Simulation of Alternative Substation Site
C. Mitigation Monitoring Plan
D. Responses to Comments
Appendix 1. List of Preparers
Appendix 2. References
Appendix 3. Public Notification Materials

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