SMUD El Rio/WAPA Elverta Substation Project (DOE/EA-2259)

About the project

Western Area Power Administration (WAPA) is proposing to make upgrades to WAPA’s Elverta Substation to support the Sacramento Municipal Utility District (SMUD) request for construction of a new El Rio Substation adjacent to and as an expansion of their existing Elverta substation. WAPA’s purpose and need for this project is to support SMUD’s request by ensuring ongoing power, operation, and compatibility between the WAPA and SMUD substations, and approving a new easement for re-routing transmission lines to serve the SMUD El Rio Substation.

In accordance with Department of Energy (DOE) Section 1021.100 to comply with the National Environmental Policy Act (NEPA) (42 U.S.C 4332[2]) and the Council on Environmental Quality (CEQ) regulations for NEPA (40 CFR § 1500-1508), WAPA shall prepare an Environmental Assessment (EA) for a proposed action. The EA will discuss the purpose and need and analyze the potential effects from the proposed action and determine whether WAPA should prepare an Environmental Impact Statement (EIS) or issue a Finding of No Significant Impact (FONSI). WAPA will be the lead federal agency for NEPA compliance. SMUD’s El Rio Substation Project is not part of WAPA’s Proposed Action, but its impacts will be presented alongside WAPA’s Federal Proposed Action as part of a comprehensive analysis in this EA.

WAPA’s proposed action for this project is design review and engineering support for the new substation and existing substation changes, including easement procurement of a 125-foot right-of-way for rerouting a transmission line, and additional construction activities at WAPA’s substation for compatibility. Additionally, these components include:

  • Updates to electrical equipment in WAPA’s control room and station service transformers, and installation of new communication fiber to be compatible with SMUD’s new substation equipment.
  • Trenching approximately 135 feet (12 inches deep) for installation of new electrical cable between WAPA and SMUD’s yards.
  • Installation of a new pole to bring offsite power to the WAPA control building; and
  • Rerouting WAPA’s 230-kV O’Banion-Elverta SMUD (OBN-ESE) transmission line and relocating two poles for reconnection to the SMUD substation.

Current status

A newsletter was sent to agencies, tribes, groups, and individuals on XXXX, 2024 announcing WAPA’s intent to prepare an EA and requesting comments on the scope of the environmental analysis from XXX, 2024 through XXX, 2024. Scoping comments will be accepted through XXX, 2024. A copy of the scoping announcement is included in the PROJECT DOCUMENTS section below.

After the scoping period closes, WAPA will prepare a Draft EA, which will be circulated for public review and comment.

Contact information and how to comment

Additional information is available to all interested parties and the public from the following contact:


Beth Kelly, Natural Resources Specialist
Western Area Power Administration
114 Parkshore Drive
Folsom, California 95630

Project documents

Draft Environmental Assessment






Last modified on May 10th, 2024