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Delaney Colorado River Transmission Ten West Link Project

(Application No. A.16-10-012)

Last Update: June 5, 2019

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Welcome to the California Public Utilities Commission (CPUC) website for the environmental review of the proposed construction of the Ten West Link Project (proposed project) located near the Interstate 10 corridor in Western Riverside County, California. The applicant for the proposed project is Delaney Colorado River Transmission LLC (DCRT). This website provides information relevant to the California Environmental Quality Act (CEQA) review process.

The Bureau of Land Management (BLM), in its role as the National Environmental Policy Act (NEPA) lead agency, is preparing an environmental impact statement (EIS) for the proposed project. The BLM issued a Notice of Intent to prepare an EIS on March 23, 2016, and completed the NEPA scoping process in June 2016. A portion of the proposed project is located within the State of California and will require approval from the CPUC. Because this approval is a discretionary action, the CPUC must comply with the requirements of CEQA. The CPUC intends to rely on the BLM EIS per CEQA Guidelines, Section 15221. The environmental documents prepared for the proposed project can be accessed on the BLM Ten West website.

The following timeline represents BLM’s overall environmental review process (green box depicts current status).

Quick Links


Project Description

Application and Notice of Intent

Environmental Documentation

For Additional Information



DCRT filed an application for a Certificate of Public Convenience and Necessity (Application A.16-10-012) for the proposed project with CPUC on October 12, 2016, accompanied by a description of proposed transmission facilities. On September 14, 2014, DCRT filed a right-of-way application (SF-299) with the BLM that proposes to construct, operate, maintain, and decommission an electric transmission project in western Arizona and eastern California. The proposed project would consist of a 500-kilovolt (kV) transmission line traversing approximately 114 miles, with a 17-mile segment in California. The proposed project would increase transmission capacity by 3,200 megawatts and provide interconnection capability for new energy projects located near the proposed project.


Project Description

The proposed project includes installation of a 500-kV transmission line, transmission supporting structures between 72 and 190 feet in height, conductors, overhead ground wire, and a new series compensation system substation.

Project construction of the entire 114-mile transmission line is expected to require approximately 38 months to complete.

The 17-mile portion of the proposed project in California would begin at the Colorado River Substation west of the City of Blythe and run eastward to the Colorado River near the Interstate 10 corridor in western Riverside County, California (see the Location Map). For a description and the location of the project components in Arizona, please refer to the BLM Ten West website.


Application and Notice of Intent

The application, appendices to the application, and BLM Notice of Intent are available for the public to view at the following links:


Environmental Documentation

Draft Environmental Impact Statement and Draft Resources Management Plan Amendments and Appendices

The Draft EIS (DEIS) and Draft RMPA (DRMPA) and appendices prepared by BLM, with review by CPUC, were released for public review on August 31, 2018, for a 90-day public review period ending November 29, 2018. Below are links to the DEIS/DRMPA and appendices. Comments on the environmental documentation were due no later than November 29, 2018.

Below is an outline of additional project information available on the BLM Ten West project website (please click Here to access the BLM webpage):

  • Federal Register Notice – Notice of Intent to Prepare EIS
  • Fact Sheet
  • Project Map 01-2016
  • Ten West Link Transmission Line DEIS and DRMPA
  • Map (Overview Map)
  • Notice of Availability
  • BLM News Release
  • Technical Environmental Study
  • Technical Environmental Study: Appendices
  • Economic Strategies Workshop Report_8/23/16
  • Scoping Report
  • DEIS_DRMPA: Additional Figures Associated with Chapter 2, 3, and 4.

Please click Here to access additional project information outlined above on the BLM Ten West project website

For Additional Information

The CPUC, through its environmental review team, is conducting an environmental review of the proposed 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:
Project voicemail: (877) 345-9502
Project fax: (877) 345-9504

The CPUC project manager’s contact information is the following:

Eric Chiang, CPUC Project Manager
California Public Utilities Commission
505 Van Ness Avenue
San Francisco, CA 94102
Tel.: (415) 703-1956


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