Sonora Boiler Repair

The Sonora Boiler Repair project, managed by Caltrans District 9 in Bishop, involves performing necessary repairs to the boiler at the Sonora Maintenance Station located in Sonora Junction, Mono County. The primary objective of this effort is to rehabilitate the boiler to extend its service life and ensure it continues to effectively heat the maintenance facility while meeting current public health and safety standards. The project is classified under NAICS code 238220 and is being handled as a forecast. The project is exempt from the California Environmental Quality Act under Section 15301 Class 1(d), as the work occurs within an existing facility and involves no ground disturbance or expansion of use. Kristopher Bason, Senior Environmental Scientist Supervisor, serves as the primary point of contact for the California Department of Transportation. The project was formally documented with a signed Notice of Exemption on August 3, 2026.