Gateway Substation Bank 1 Transformer Replacement

The Imperial Irrigation District is seeking the engineering, procurement, and replacement of the aging Bank 1 power transformer and associated equipment at the Gateway Substation located at 429 Pan American St, Calexico, California. The project is designed to replace equipment that has been in operation for approximately 63 years to mitigate the risk of failure and enhance overall system safety and reliability. All activities will be conducted within the existing substation footprint, and the scope includes an evaluation of the existing transformer foundation and other associated substation equipment to determine if further in-footprint replacements are necessary. This project is classified under NAICS code 237130 and is designated as a forecast with a posted date of September 2, 2026. It has been granted a CEQA categorical exemption under Class 2, Section 15302 for replacement and reconstruction, as the work does not expand the facility or alter its utility use. Primary administrative and environmental coordination is managed by Jeremy Brooks of the Environmental Compliance Unit.