Alberhill System
8 Documents in Project
Summary
SCH Number
2010041031
Lead Agency
California Public Utilities Commission
(CPUC)
Document Title
Alberhill System
Document Type
NOD - Notice of Determination
Received
Posted
3/26/2026
Document Description
The project would serve the cities of Lake Elsinore, Canyon Lake, Perris, Menifee, Murrieta, Hot Springs, Temecula, and Wildomar as well as surrounding unincorporated areas of Riverside County. The project would include:
• Construction of a new 1,120 megavolt ampere 500/115-kilovolt (kV) substation (Alberhill Substation).
• Construction of two new 500-kV transmission lines to connect the Alberhill substation to the existing Serrano–Valley 500-kV transmission line.
• Converting approximately 10.6 miles of existing single-circuit 115-kV subtransmission lines to double-circuit with structure replacement primarily in the existing right-of-way (ROW).
• Construction of about 3 miles of single-circuit 115-kV subtransmission line with distribution line underbuilt on the subtransmission line structures and remove about 3 miles of electrical distribution lines within the existing ROW.
• Installing a second 115-kV circuit on approximately 6.2 miles of existing 115-kV subtransmission lines.
• Installing approximately 550 feet of new 115-kV underground subtransmission circuit within new duct banks and approximately 4,000 feet of new 115-kV subtransmission circuit within existing duct banks.
• Installing fiber optic lines overhead (approximately 9 miles) on sections of the new or modified subtransmission lines and underground (approximately 1 mile) in proximity to the Alberhill Substation and several existing 115/12-kV substations.
• Installing a 120-foot microwave antenna tower at the Alberhill Substation site. Installing microwave telecommunications dish antennas at the Alberhill Substation, the existing Santiago Peak communications site, and Serrano Substation. Installing telecommunications equipment at other substations.
• Installing a new position inside Newcomb Substation to accommodate the new Newcomb-Skylark 115-kV line, and modifying an existing position at Valley Substation to isolate the existing Valley-Newcomb 115-kV line, which will be taken out of service as part of the project.
• Transferring five of the 14 Valley South 115-kV System substations (Ivyglen, Fogarty, Elsinore, Skylark, and Newcomb) to the 115-kV Alberhill System.
Contact Information
Name
Cesar Moreno
Agency Name
California Public Utilities Commission
Job Title
CEQA Project Manager
Contact Types
Lead/Public Agency
Phone
Email
Name
Thomas Diaz
Agency Name
Southern California Edison
Job Title
Senior Adviser
Contact Types
Project Applicant
Phone
Email
Location
Coordinates
Cities
Lake Elsinore, Menifee, Unincorporated Riverside County, Wildomar
Counties
Riverside
Regions
Southern California
Cross Streets
Temescal Canyon Road and Concordia Ranch Road
Zip
92883
Total Acres
34
Parcel #
391-120 (002, 016, 022, 023, 026)
State Highways
Hwy 74, 15, 215
Railways
no
Airports
Skylark Field and Perris Valley
Schools
Multiple
Waterways
Lee Lake, Lake Elsinore, Canyon Lake
Notice of Determination
Approving Agency
California Public Utilities Commission
Approving Agency Role
Lead Agency
Approved On
Determinations
(1) The project will have a significant impact on the environment
Yes
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
Yes
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
No
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
Yes (Addendum to Final EIR)
(3) Mitigated measures were made a condition of the approval of the project
Yes
(4) A mitigation reporting or monitoring plan was adopted for this project
Yes
(5) A Statement of Overriding Considerations was adopted for this project
Yes
(6) Findings were made pursuant to the provisions of CEQA
Yes
Attachments
Notice of Determination
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