STATE OF CALIFORNIA PUBLIC UTILITIES COMMISSION Southern California Edison's Valley South 115 kV Subtransmission Project (Application A.14-12-013 filed December 15, 2014)

Welcome to the California Public Utilities Commission (CPUC) website for SCE's Valley South 115 kV Subtransmission Project (Valley South). This website will provide information on the status of the CPUC's environmental review of the project under the California Environmental Quality Act (CEQA). SCE submitted an application for a Permit to Construct Electrical Facilities with Voltages between 50 kV and 200 kV to the CPUC on December 15, 2014. Concurrently, SCE also filed its Proponent's Environmental Assessment (PEA) for the project on this date. Based on a review of the application materials and responses to data requests, the CPUC determined that the application was complete in April 2015, which began the environmental review process under CEQA for Valley South.

Proposed Project

The Valley South project is proposed to be located in southwestern Riverside County. The documents noted above provide more detail regarding the proposed location and key components of the project. A summary of the proposed project is provided below:

• Modification of SCE's existing Valley 500/115 kV Substation would include equipping an existing 115 kV line position and providing protection equipment as required.
• Construction of a new 115 kV subtransmission line originating at SCE's existing Valley 500/115 kV Substation and terminating at a Tubular Steel Pole (TSP) located at the southeast corner of Leon Road and Benton Road. The TSP is the common point of the three-terminal existing Valley-Auld-Triton 115 kV Subtransmission Line. The new construction and associated reconfiguration would result in the formation of the Valley-Auld No. 2 and Valley-Triton 115 kV Subtransmission Lines. The new 115 kV subtransmission line would be approximately 12 miles in length and is referred to as Segment 1 of the Proposed Project. The majority of the new line would be within existing rights-of-way (ROW), SCE fee-owned ROW (at Valley Substation), and franchise ROW (i.e., roads, streets, sidewalks).
• Replacement of a segment of overhead conductor of the existing Valley-Auld-Triton 115 kV Subtransmission Line beginning at the TSP located at the southeast corner of Benton Road and Leon Road continuing south to the Terminal TSP located on the south side of Nicolas Road, approximately 250 feet west of Los Chorus Ranch Road in the City of Temecula. This reconductor segment is approximately 3.4 miles in length and is referred to as Segment 2 for the Proposed Project.
• Relocation of existing distribution and telecommunication lines from old poles to new poles to support installation of Segments 1 and 2 of the new 115 kV subtransmission line.
• Installation of telecommunication equipment at Triton and Valley Substations to connect the Proposed Project to SCE’s existing telecommunication system.

Draft Environmental Impact Report

The CPUC released the Draft Environmental Impact Report (Draft EIR) for Valley South on January 29, 2016. The Draft EIR and the Notice of Availability are available at the following links:

• Draft EIR
• Notice of Availability

Project-related Documents (SCE Application and PEA)

This website provides access to public documents and information relevant to the CEQA review of the Valley South Project.

Application

Proponent's Environmental Assessment

• Proponent's Environmental Assessment, Volume 1 of 4
• Proponent's Environmental Assessment, Volume 2 of 4
• Proponent's Environmental Assessment, Volume 3 of 4
• Proponent's Environmental Assessment, Volume 4 of 4
  • Volume 4 Part 1
  • Volume 4 Part 2
  • Volume 4 Part 3
  • Volume 4 Part 4
  • Volume 4 Part 5

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