Introduction
Welcome to the California Public Utilities Commission (CPUC) website for the California Environmental Quality Act (CEQA) review of proposed construction of the Mesa 500-kV Substation Project (Mesa Substation Project). On March 13, 2015, SCE filed an application [Application No. A.15-03-003] for a Permit to Construct (PTC) with the CPUC to rebuild and upgrade a portion of its transmission infrastructure primarily within the Western Los Angeles Basin Electrical Needs Area. The majority of would take place in the City of Monterey Park with some work occurring in nearby cities and portions of unincorporated Los Angeles County. If the proposed project is approved, the existing 220/66/16-kV Mesa Substation would be upgraded to a 500/220/66/16-kV substation.
In accordance with CEQA, the CPUC, as the Lead Agency, is required to conduct a review of the environmental impacts of the proposed project and is preparing an Environmental Impact Report (EIR). This site provides access to public documents and information relevant to the CEQA review process. Additional project information and documentation will be posted as it becomes available.
Si usted necesita más información en español, por favor, llame al (844) 538-6992.
如果你想了解项目的信息(国语)，请打电话 (844)538-6992.
Quick Links
- Project Description
- Project Location
- Application and Proponent’s Environmental Assessment
- Public Scoping and Notice of Preparation of an EIR
- Data Requests and Responses
- Administrative Law Judge's Proceeding
- Additional Information
Project Description
Major components of the Mesa Substation Project include the following:- Transmission, subtransmission, and distribution structure work in Monterey Park, Montebello, Commerce, and unincorporated Los Angeles County
- Relocation of an onsite Metropolitan Water District water line
- New telecommunications lines and modifications to an existing line, mostly on existing poles and in existing ducts
- Temporary modifications to 220-kV equipment at several existing substations to prevent electrical outages during construction
- Electrical and/or telecommunications equipment upgrades at 27 existing substations
- Undergrounding of three spans of overhead streetlight conductor in Bell Gardens
In addition, upgrades would be made to various transmission and telecommunciations equipment inside the Mechanical Electrical Equipment Rooms (MEERs) at 27 satellite substations. Construction of the new 500/220/66/16-kV substation and demolition of the existing 220/66/16-kV substation would occur in phases.
Phase 1 would consist of grading and initial site development on the western portion of the project site. Phase 2 would consist of construction of the first half of the new Mesa Substation. During Phase 1 and 2, the existing substation on the eastern portion of the site would remain operational in order to maintain electrical service to customers during construction. Phase 3 would consist of demolition of the existing substation and construction of the second half of the new substation on the eastern portion of the site. Construction of the Mesa Substation Project is anticipated to begin in June 2016 and would take approximately 4.5 years.
Project Location
The Proposed Project is located in Los Angeles County, California, primarily in the City of Monterey Park where the existing 220/66/16-kV Mesa Substation would be demolished and the new 500/220/66/16-kV Mesa Substation would be constructed. Other components will be located within portions of Monterey Park, Montebello, Rosemead, South El Monte, Commerce, Bell Gardens, Pasadena, Industry, Santa Clarita, and in portions of unincorporated Los Angeles County.
Application and Proponent’s Environmental Assessment
SCE filed an application (A.15-03-003) for a PTC and Proponent's Environmental Assessment (PEA) for the proposed project on March 13, 2015. The PEA provides information to begin the independent environmental review process conducted by the CPUC. On April 2, 2015, the CPUC sent a deficiency letter to SCE, which requested additional information needed in order to deem the application complete. SCE provided a response to Deficiency Letter #1 on April 30, 2015. Following review of SCE’s response, the CPUC deemed the application complete on May 15, 2015.
- SCE Application
- CPUC Deficiency Letter #1
- SCE Response to Deficiency Letter #1
- CPUC Application Completeness Letter
Public Scoping and Notice of Preparation of an EIR
On June 5, 2015, the CPUC published a Notice of Preparation (NOP) indicating that an EIR would be prepared. The NOP, which includes a figure depicting an overview of project components, is located here.
Publication of the NOP initiated a public comment period beginning June 5, 2015, and ending at 5:00 pm on July 5, 2015. All interested parties, including the public, responsible agencies, and trustee agencies, were invited to learn more about the project, ask questions, and present comments about the Mesa Substation Project at the public scoping meeting. The scoping meeting was held on June 23, 2015 at the Langley Center, located at 400 W. Emerson Avenue in the City of Monterey Park, California from 6:00 p.m. until 7:30 p.m. A copy of the PowerPoint presented at the scoping meeting is located here.
Written scoping comments may be mailed, faxed, or e-mailed to the CPUC during the NOP comment period specified above. Please include a name, address, and telephone number of a person who can receive future correspondence regarding the EIR. Please send your comments to:
Lisa Orsaba
California Public Utilities Commission
RE: Mesa 500-kV Substation Project
c/o Ecology and Environment Inc.
505 Sansome Street, Suite #300
San Francisco, CA 94111
Emailed comments may be sent to: Mesa.CPUC@ene.com. Faxed comments may be sent to (415) 398-5326. Voice messages may be left at: (844) 538-6992. For mailed, faxed, and emailed comments, please include your name and mailing address in your comment, and include the words “Mesa Substation Project.” Comments received during the scoping period will be considered during preparation of the Mesa Substation Project EIR.
Data Requests and Responses
The CPUC is currently reviewing the application and PEA to identify additional data needed from the Applicant to complete the environmental review process. The CPUC sent Data Request #1 to SCE on May 22, 2015. Data Requests and Responses will be added to this website when the Responses from SCE have been reviewed by the CPUC.
Administrative Law Judge’s Proceeding
For information about the proceeding or to find out how you can participate in the proceeding, please click the following link and enter the proceeding number (1503003):Link to the Proceeding
For Additional Information
To request additional information or to be added to the mailing list, please contact us by email, fax, or phone, as follows:
Project email:
Mesa.CPUC@ene.com
Project fax: 415-398-5326
Project voicemail: (844) 538-6992 (toll free)
The CPUC’s Project Manager is:
Lisa Orsaba, CPUC Project Manager
California Public Utilities Commission
505 Van Ness Avenue
San Francisco, CA 94102
Email:
Lisa.Orsaba@cpuc.ca.gov
Tel.: (415) 703-1966