BENICIA -- Valero has agreed to pay $183,000 to settle air quality violations at its Benicia refinery, the Bay Area Air Quality Management District announced Friday.
The civil penalty covers seven notices of violation that the air district issued to Valero in 2011 for incidents that occurred in 2010, according to an air district news release.
The violations were related to a December 2010 upset of Valero's fluid catalytic cracking unit, which converts heavy gas oils into gasoline and other lighter compounds. The upset resulted in intermittent violations of opacity and particulate standards at Valero's main stack over a 10-day period, as well as violations of carbon monoxide and sulfur standards at other affected equipment, the district said.
All settlement funds will be used to fund air district activities such as the inspection and enforcement activities that led to the settlement.