NORTH SALT LAKE -- Another Utah oil refinery has reached a settlement with federal regulators over pollution violations.
The U.S. Department of Justice and the Environmental Protection Agency announced Friday that Big West Oil LLC has agreed to pay a $175,000 fine and cut emissions of soot, nitrous oxide and sulfur dioxide.
Big West Oil operates a refinery in North Salt Lake. It agreed to spend $18 million to update emission controls, plus $353,000 to improve the monitoring of potential hydrofluoric acid releases.
In addition, Big West agreed to update its leak detection and repair program to minimize fugitive benzene emissions.
Friday's settlement resolved alleged violations of the Clean Air Act.
At a nearby refinery in May, Tesoro Corp. agreed to pay $1.1 million to settle claims it failed to test or monitor the production of gasoline for harmful pollutants.