On April 8, 2021, Respondent consolidated one drum of PCB-contaminated debris into a larger load of non-PCB waste and shipped it for disposal without identifying it as PCB on the manifest. The waste was subsequently disposed in a landfill facility which is not authorized to accept PCB waste. Since the original material was low concentration (56 parts per million) and was diluted below detectable levels of PCBs before disposal, EPA is not seeking its removal from the landfill as it would be impossible to identify.