Golden Valley 230 kV

In addition to participating in the virtual open house meeting, residents and other stakeholders are encouraged to share their comments using one of these methods:

• Sending comments via email at Goldenvalley230@uesaz.com
• Calling (520) 745-7111
• Mailing a letter with comments to:
  • ATTN: Golden Valley 230kV
    Transmission Project
    C/O George Miller
    Transcon Environmental
    1745 S. Alma School Rd., Ste. 220
    Mesa, Arizona 85210

UniSource evaluated six alternative routes for the project as shown in the online map. All alternatives originate at the Harris Substation, located adjacent to the Nucor Steel Plant approximately 3 miles southwest of Kingman, and end at the site of the proposed Mineral Park Substation, located approximately 10 miles northwest of Kingman near U.S. Highway 93 and Mineral Park Road. All six potential routes, identified as the East Cerbat Alternatives (E1 and E2) and the West Cerbat Alternatives (W1, W2, W3, and W4) share a common alignment to the north.

All routes cross private land and land administered by the Arizona State Land Department (ASLD) and Bureau of Land Management (BLM). The East Cerbat alternatives also cross City of Kingman land. Both East Cerbat alternatives generally follow U.S. Route 93 through the Cerbat Foothills Recreation Area. The four West Cerbat alternatives continue north or south of Shinarump Drive, then extend north along the western edge of the recreation area.

Public outreach for the project began in 2007 after operators of the Mineral Park Mine expressed a need for additional service. Although the request was withdrawn in 2008, UniSource continued planning for the project to improve service and accommodate the anticipated energy needs of customers in the area.

The Arizona Corporation Commission (ACC) must give final approval for UNSE to construct and operate the project. UNSE filed an application for a Certificate of Environmental Compatibility (CEC) with the ACC in spring 2021.  A hearing was held before the Arizona Power Plant and Transmission Line Siting Committee in April 2021.  In June 2021, the ACC approved the CEC.

The project crosses federal land under the jurisdiction of the Bureau of Land Management (BLM).  As a result, UNSE applied for a Special Use Authorization to construct and operate the transmission line across federal land.  In September 2021, the BLM issued a Decision Record and Finding of No Significant Impact (FONSI) approving the preferred alternative identified in the Environmental Assessment.