Overview
Thomas Petroleum dba Eastern Sierra Oil Co. Mammoth Card Lock is a refinery in Mammoth Lakes, California. It operates under US EPA regulations for petroleum refining.
Thomas Petroleum dba Eastern Sierra Oil Co. Mammoth Card Lock is a refinery located at 240 Commerce Dr, Mammoth Lakes, California, in Mono County. The facility is operational and classified under NAICS code 324110 for petroleum refineries. As a small-scale refinery in the Eastern Sierra region, it serves local fuel demands in a mountainous area. The facility operates under the US Environmental Protection Agency's Clean Air Act Refinery MACT standards, which control hazardous air pollutants from petroleum refining. Additionally, it must comply with California's stringent air quality regulations, including those from the California Air Resources Board (CARB). The refinery's inland location reduces coastal spill risks, but its proximity to the Sierra Nevada ecosystem requires careful management of emissions and wastewater. This refinery plays a role in supplying petroleum products to the Mammoth Lakes area, a popular tourist destination known for skiing and outdoor recreation. Its operations support local transportation and heating needs, while regulatory compliance ensures environmental protection in a sensitive alpine region.
Environmental context
The refinery is situated in the Eastern Sierra region near Mammoth Lakes, an area with high ecological sensitivity due to alpine forests, lakes, and wildlife habitats. Inland refining reduces coastal spill risks, but air emissions and water usage are key concerns. The facility must adhere to US EPA MACT standards for refineries and California's strict air quality rules to minimize impact on the surrounding environment.
Frequently asked questions
The facility is located at 240 Commerce Dr, Mammoth Lakes, California 93546, in Mono County.
It is a petroleum refinery that processes crude oil into refined products such as gasoline, diesel, and heating oil for local distribution.
Specific capacity data is not publicly available, but as a small refinery in a rural area, it likely has a modest throughput compared to large coastal refineries.
The refinery must comply with US EPA Clean Air Act Refinery MACT standards, California Air Resources Board regulations, and local air quality management district rules.
The refinery's operations are subject to strict emissions controls to protect the nearby Sierra Nevada ecosystem, including air quality and water resources.
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