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STATE OF CALIFORNIA
PUBLIC UTILITIES COMMISSION

Southern California Edison
Triton Substation Project

(Application No. A.08-11-019)

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Welcome to the California Public Utilities Commission (CPUC) website for the California Environmental Quality Act (CEQA) review of proposed construction of Southern California Edison (SCE) Triton Substation Project. An application for this project was submitted to the CPUC on November 21, 2008 (Application A.08-11-019). This site provides access to public documents and information relevant to the CEQA review process.

Background

Southern California Edison (SCE) has filed an application with the CPUC to construct the Triton Substation project for a new 56 megavolt ampere (MVA) 115/12 kilovolt (kV) unattended substation (Triton Substation) that would serve the cities of Temecula, Murrieta, and unincorporated southwestern Riverside County. The Triton Substation is proposed to be built on an approximately 10-acre parcel at the southeast corner of Nicolas Road and Calle Medusa in Temecula, California. Click here for a map showing the location of the proposed site.

The proposed project would also include construction of a 115 kV loop-in from the existing Valley-Auld-Pauba 115 kV subtransmission line into the new substation, two new underground 12 kV distribution duct banks, and a telecommunications system to connect the proposed Triton Substation to the existing Auld and Moraga substations. SCE’s existing Canine 33/12 kV Substation in Temecula would also be retired when the Triton Substation is operational. SCE has designed the Triton Substation to eventually expand to 112 MVA at some future date, depending on need.

SCE currently forecasts that the demand in the service area may exceed the designed operating limits of the existing distribution facilities as early as the summer of 2010. SCE has designed the project to meet the long-term forecasted electrical demands of the cities of Temecula, Murrieta, and adjacent areas of unincorporated southwestern Riverside County while maintaining system reliability and enhancing operational flexibility. SCE initially proposed to construct the project from approximately October 2009 to May 2010. If the CPUC approves the project, the earliest construction would begin would be spring 2010. If approved, construction is estimated to take 8 months. The estimated cost of the proposed Triton Substation is approximately $29.9 million in 2008 constant dollars.

Application and Proponent’s Environmental Assessment (PEA)

The application and PEA for the Triton Substation Project are available to view.

The CPUC sent SCE a deficiency letter on December 22, 2008. The CPUC found the application and the additional information that SCE submitted in response to satisfy the Commission’s Information and Criteria List and determined it to be complete on April 30, 2009.

Environmental Review Process

As the lead CEQA agency, the CPUC circulated a Draft Mitigated Negative Declaration (Draft MND) and supporting Initial Study (IS) on November 18, 2009. The Draft MND/IS describes the project, evaluates potential environmental impacts, identifies impacts that could be significant, and presents mitigation measures that would avoid or reduce potential impacts to less than significant levels.

Click on the links below to download each chapter of the Draft Mitigated Negative Declaration / Initial Study:

Cover
Draft Mitigated Negative Declaration
Table of Contents
1.0 Background Information
2.0 Environmental Determination
3.0 Evaluation of Environmental Impacts
4.0 List of Preparers, Agencies, and Persons Contacted
5.0 Mitigation Monitoring, Reporting, and Compliance Plan
Appendix A Review of Alternative Substation Locations
Appendix B Air Quality and Greenhouse Gas Emissions
Appendix C Biological Survey Maps

Public Comment Period

The circulation of the Draft MND/IS opens a public comment period that will extend from November 18, 2009, through December 17, 2009. The CPUC will host a public meeting on the Triton Substation project:

Date:

Time:

Location:
Monday December 7, 2009

7:00 p.m.

Calvary Baptist Church of Temecula
31089 Nicolas Road
Temecula, California 92591

Interested parties may present comments about the project and Draft MND/IS. Written comments must be postmarked or received by fax or email no later than December 17, 2009. Please be sure to include your name, address, and telephone number in correspondence. Send written comments to:

Triton Substation Project
c/o Ecology and Environment, Inc.
Attn: Karen Ladd, Project Manager
130 Battery Street, 4th Floor
San Francisco, CA 94111
Fax: (415) 981-0801
Email: triton@ene.com

Following the public comment period, the CPUC will prepare a Final MND/IS that will address comments received on the Draft MND/IS. There is no comment period following issuance of the Final MND. The CPUC will then determine the adequacy of the Final MND. If adequate, the CPUC will adopt the document as being compliant with CEQA and issue a Proposed Decision on the Application, which will be announced and published concurrent with a scheduled CPUC commission meeting. After the Commission makes the decision on the Application, a Notice of Determination will be mailed to the State Clearinghouse within 5 days of the Decision. After the Notice of Determination is filed, the 30-day statute of limitations for court challenges begins to run.

Availability of Draft MND/IS

Copies of the Draft MND/IS will also be available for review at the Temecula Public Library and on the project website.

Temecula Public Library
30600 Pauba Road
Temecula, CA 92592-6206
(951) 693-8900

Other Documents Available

Deficiency Letter (December 22, 2008)
SCE fact sheet (April 2008)
SCE project update (October 2008)

For Additional Information

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

Project email: triton@ene.com
Project fax: (415) 981-0801
Project voicemail (toll-free): (877) 651-3666


The CPUC’s Project Manager is:

Iain Fisher, CPUC Project Manager
California Public Utilities Commission
505 Van Ness Avenue
San Francisco, CA 94102
tel. (415) 355-5580
fax (415) 703-2200
email: AEI@cpuc.ca.gov
   
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