Premcor Refining Group Inc - Lima Refinery: Oil Refinery in Lima, Ohio

Premcor Refining Group Inc - Lima Refinery is a petroleum refinery located at 1150 S Metcalf St, Lima, Ohio, in Allen County. The facility is operational and processes crude oil into various refined products, serving the regional market. As a refinery in the United States, it falls under the medium to large scale category typical of inland refineries. The refinery operates under the US Environmental Protection Agency's Clean Air Act Refinery Maximum Achievable Control Technology (MACT) standards, which govern emissions of hazardous air pollutants. Additionally, it must comply with the Resource Conservation and Recovery Act (RCRA) for waste management and the Clean Water Act for wastewater discharges. The facility's NAICS code 324110 indicates petroleum refining, and its operations are subject to regular inspections and permitting. The Lima Refinery plays a significant role in the local economy and energy supply chain, providing fuels and feedstocks for industrial and consumer use. Its location in the Midwest allows it to access crude oil supplies from domestic pipelines and serve markets in Ohio and surrounding states. The facility's environmental performance is monitored under federal and state regulations.

The refinery is situated in an inland area of Ohio, away from coastal spill risks, but its operations involve handling large volumes of crude oil and refined products, posing risks of soil and groundwater contamination. The facility must manage emissions of volatile organic compounds and sulfur dioxide under the CAA Refinery MACT. Local environmental concerns include air quality impacts on nearby communities and potential releases from storage tanks and processing units.