A troubled petroleum coke plant near Buffalo, N.Y., is under investigation by the Environmental Protection Agency and the state’s Department of Environmental Conservation. The investigation comes after a motor failure prevented an exhauster from directing dangerous gas to a treatment area. A backup exhauster also failed, and a third exhauster was already out of service.
The gas, which included benzene, ammonia and other harmful pollutants, was then burned on its way out of the smokestack. The plant’s operators called the EPA and state officials to report the incident.
The plant, owned by the Tonawanda Coke Corporation, was raided by federal investigators in December. Its environmental control manager was arrested and faces up to five years in prison for environmental law violations.
Read the EPA’s announcement on the investigation here.

