Southern California Edison's
Riverside Transmission Reliability Project
(Application No. A.15-04-013)Last updated: September 15, 2022
NOTE: Linked files presented on this page are in PDF format. To view them, you will need to download the free Adobe Acrobat Reader if it is not already installed on your computer. For faster results in displaying the larger files, right-click the file's link, click "Save Target As" to download the file to your hard drive, then double-click the downloaded file.RevRe
| The CPUC Issues Project Decision
Presiona aquí para ver información en español.
to the California
Public Utilities Commission (CPUC) website for the environmental review
Southern California Edison’s (SCE’s) proposed Riverside Transmission
Reliability Project (RTRP or project) in Riverside County, California.
submitted an application to the CPUC for a Certificate of Public
and Necessity (CPCN) for this project on April 15, 2015, and an amended
application on April 30, 2015. In August 2016, SCE submitted project
that included constructing a portion of the transmission line
Background and Project Description below). This site provides access to
documents and information relevant to the CPUC’s California
Quality Act (CEQA) process.
Welcome to the California Public Utilities Commission (CPUC) website for the environmental review of Southern California Edison’s (SCE’s) proposed Riverside Transmission Reliability Project (RTRP or project) in Riverside County, California. SCE submitted an application to the CPUC for a Certificate of Public Convenience and Necessity (CPCN) for this project on April 15, 2015, and an amended application on April 30, 2015. In August 2016, SCE submitted project revisions that included constructing a portion of the transmission line underground (See Background and Project Description below). This site provides access to public documents and information relevant to the CPUC’s California Environmental Quality Act (CEQA) process.
QUICK LINKSCommission Decision (Updated March 30, 2020)
Background and Project Description
*Note: All anticipated dates are approximate and subject to change.
The Draft Subsequent EIR and comments are provided below.
SCE and the City of Riverside's Municipal Utility Department (known as Riverside Public Utilities [RPU]) jointly planned the RTRP. RPU is a consumer-owned water and electric utility that has been providing services throughout the City of Riverside since 1895. The project would be owned and operated by both RPU and SCE. The RPU would own and operate certain elements of the RTRP including the new 69-kV Wilderness Substation, 69-kV subtransmission lines, and interconnection and telecommunication facilities. The SCE CPCN application covers the construction of RTRP elements that would be owned and operated by SCE, which would include:
• Approximately 8 miles of new overhead 230-kilovolt (kV) transmission line;
• Approximately 2 miles of new underground 230-kV transmission line;
• New 230-kV Wildlife Substation;
• Modifications of existing overhead distribution lines;
• Modifications at existing substations; and
• Telecommunication facilities between the existing Mira Loma and Vista Substations and the proposed Wildlife Substation.
The RTRP was first proposed by RPU. Acting as the CEQA Lead Agency, the City of Riverside prepared an Environmental Impact Report (EIR) to analyze the environmental impacts from construction, operation, and maintenance of the RTRP. While there are separate permit requirements and authorizations required for RPU and SCE, the project EIR considered the “whole of the action” under CEQA (CEQA Guidelines §15378[a]) since neither the RPU elements nor the SCE elements could operate independent of one another. The City of Riverside certified the 2013 RTRP Final EIR and approved the project on February 5, 2013.
Following certification of the RTRP EIR, residential and commercial developments within SCE’s proposed transmission line route were approved by the City of Jurupa Valley. Construction of several of these developments has begun or been completed; therefore, construction of the original RTRP transmission line route would require SCE to claim eminent domain through recently entitled developments including the Lennar Homes’ Riverbend Community, the Vernola Marketplace Apartment Community, and the Stratham Homes Harmony Trails Subdivision. In September 2016, SCE revised the proposed transmission line route to avoid these three development projects. The September 2016 transmission route revisions were not included in the 2013 RTRP EIR and have not yet undergone environmental review.
CPUC is the next-in-line public agency with discretionary approval of the CPCN. The CPUC has determined that changes in the baseline physical condition (development within the proposed transmission alignment) and changes in the project description (SCE modifications to avoid the new development) require additional analysis under CEQA.
Detailed maps of the proposed route and project components can be viewed here.
SCE filed an Application for a CPCN (A.15-04-013) on April 15, 2015, which included the certified 2013 RTRP Final EIR prepared by the City of Riverside and associated administrative record. The RTRP Final EIR was filed by SCE as equivalent information to a Proponent’s Environmental Assessment. SCE filed an Amended Application on April 30, 2015.
The Application and Amended Application can be viewed here:
Application (3.4 MB)
Amended Application (2.5 MB)
The 2013 RTRP Final EIR can be viewed here.
The CPUC deemed the application complete on January 5, 2017. The letter of completeness can be viewed here.
The CPUC Environmental Review Team submitted data requests to the applicant for specific information to support the environmental review process. Those requests and the applicant's responses are published below.
The Notice of Availability can be viewed here.
The Final Subsequent EIR can be viewed here.
Printed copies of the Final Subsequent EIR are available for review at the following locations:
The Draft Subsequent EIR was released for public review on April 2, 2018.
The Notice of Availability can be viewed here.
The Draft Subsequent EIR can be viewed here.
The CPUC, as the CEQA lead agency, held public informational workshops on the 24th and 25th of April at Mira Loma Middle School in Jurupa Valley. The purpose of the workshops were to help affected communities understand the Revised Project, its alternatives, the Draft Subsequent EIR, and how to participate in the CPUC decision-making process. Public informational workshop materials can be found below.Informational workshop materials:
publication of the Draft Subsequent
EIR, a comment period was
April 2 through May 17, 2018. Comments were recieved from agencies,
non-governmental organizations and businesses, and public individuals.
Responses to comments willl be presented in the Final Subsequent
CEQA Initial Study Checklist
The CPUC prepared an Initial Study
Checklist for the RTRP project revisions. The Initial Study Checklist
prepared in January 2017 and provided an initial screening of
impacts based on information available at the time. The Initial Study
was released with the Notice of Preparation.
Several environmental topics that were screened out in the Initial Study Checklist were re-analyzed in the Draft Subsequent EIR based on additional project engineering refinements, further environmental review by the CPUC, and the consideration of scoping comments.
Issuance of a CEQA Notice of Preparation (NOP) is the first step in the EIR Process. The NOP provides a description of SCE's application and the revised project as well as a summary of environmental topics to be considered in the Subsequent EIR. The NOP was issued on January 25, 2017 and is available here.The scoping period began on January 25 and ended on February 24, 2017. In order for the public and regulatory agencies to have an opportunity to ask questions on the scope of the Subsequent EIR, the CPUC, as the CEQA lead agency, held a scoping meeting for the public on February 8, 2017 at Jurupa Valley High School. The CPUC described SCE's proposed project and the CPUC review process. Public comments on the scope and issues to be addressed in the Subsequent EIR were accepted during the meeting.
A copy of the presentation is available here: English | Spanish
The project fact sheet is available here: English | Spanish
* The listed fact sheets provide the corrected project website URL.
The CPUC prepared a Scoping Report that documents the scoping activities and oral comments from the scoping meeting, as well as the written comments submitted in response to the NOP. This report serves as an information source to the CPUC in the determination of the range of issues and alternatives to be addressed in the Draft Subsequent EIR. Click below to view the Scoping Report and Appendices.
Scoping Report (2.27 MB)
Appendices (82.8 MB)
A Mitigation Monitoring, Compliance, and Reporting Plan (MMCRP) was prepared by the CPUC to ensure compliance with applicant proposed measures and mitigation measures approved in the Final Initial Study/Mitigated Negative Declaration (IS/MND). The MMCRP provides guidelines and procedures for environmental compliance during project implementation. The MMCRP is available here.
Mitigation plans for the project will be posted here when available.
Notices to Proceed
SCE must obtain a Notice to Proceed (NTP) from the CPUC prior to initiating construction activities in accordance with the procedures outlined in the MMCRP. NTP requests and approvals will be posted here when approved.
All documents related to the environmental review and construction monitoring processes are posted on this site as they become publicly available To request additional information, ask a question, or be added to the project mailing list, please contact: