On February 20, 2013, Region 10 filed a Consent Agreement and Final Order (CAFO) resolving claims under the Toxic Substances Control Act against Oil Re-Refining Company (ORRCO). ORRCO received three shipments of used oil containing concentrations of polychlorinated biphenyls (PCBs) up to 20,500 parts per million. This oil was mixed with other used oil and the PCBs were diluted into a volume of approximately 130,000 gallons. Because the original source concentrations exceeded 500 parts per million of PCBs in liquids, the PCB regulations require that all the diluted oil be disposed of in an incinerator. The CAFO includes Âsettlement with conditions provisions, which establish a disposal schedule with which ORRCO must comply to assure that the PCB used oil is properly disposed as expeditiously as practical. If ORRCO fails to comply, ORRCO will be required to pay a $408,500 penalty.