CITY OIL-CHEVRON Refinery, Longmont, Colorado | US Oil Infrastructure

CITY OIL-CHEVRON is a refinery situated at 275 Third Avenue in Longmont, Colorado, United States. The facility operates in the petroleum refining sector, classified under NAICS code 324110 for petroleum refineries. As a refinery, it processes crude oil into products such as gasoline, diesel, and other fuels. The facility operates under the regulatory framework of the United States Environmental Protection Agency (EPA), including the Clean Air Act (CAA) Refinery Maximum Achievable Control Technology (MACT) standards and other federal regulations. Colorado's refining sector is relatively small compared to Gulf Coast states, with facilities typically serving regional demand. The plant's scale is likely medium to small based on its location in a non-coastal state. As an operational refinery in Colorado, CITY OIL-CHEVRON contributes to the local and regional fuel supply chain. Its location in Longmont places it near the Denver metropolitan area, supporting transportation and industrial energy needs. The facility's environmental impact is managed through EPA and state-level permits, focusing on emissions control and spill prevention.

The refinery's location in Colorado, a non-coastal state, reduces the risk of marine oil spills but still poses potential risks to local air and water quality. Refining operations involve complex processes with high Nelson complexity indices, which can increase emissions of volatile organic compounds and hazardous air pollutants. The facility is subject to EPA's Refinery MACT standards for emissions control and must comply with state regulations for water discharge and waste management.