Fuel station and terminal operator U.S. Oil will pay $450,000 (303,000) to settle allegations that it violated Wisconsin air pollution control laws at facilities in Milwaukee and Green Bay.
According to a complaint filed earlier this year at the request of the Wisconsin Department of Natural Resources, U.S. Oil's fuel storage terminals emit VOCs, which are air contaminants under state law.
The complaint charged that the company has failed to conduct required regular inspections of the roofs and seals on the tanks to ensure they are not leaking the compounds into the air. The company also failed to report deficiencies to DNR and correct them in a timely fashion when they were identified.
The Milwaukee facility and one of the Green Bay terminals are considered major sources of VOC emissions, with volumes of more than 100 tonnes a year emitted from each facility. The company has implemented corrective actions to bring its facilities into compliance.