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.

This website provides access to public documents and information relevant to the CEQA review of the Valley South project. The application and Proponent's Environmental Assessment, included below, are currently under review by the CPUC.

Application

• Application of Southern California Edison Company (U-338-E) for a Permit to Construct Electrical Facilities with Voltages Between
  50 kV and 200 kV: Valley South 115 kV Subtransmission Project

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

Background

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 connecting at a Tubular Steel Pole (TSP), which is 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.
• 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 would be required to support the installation of Segments 1 and 2 for the new 115 kV subtransmission line.
• Installation of telecommunication equipment at Triton and Valley Substations would support Segments 1 and 2 for the new 115 kV subtransmission line.

For Additional Information

The CPUC, through its Environmental Review Team, will be conducting an environmental review of the project. To request additional information or to be added to the mailing list, please contact us by phone or email, as follows: