This document, along with referenced supporting documents provides a defensible and auditable record of acceptable knowledge for one of the waste streams from the FB-Line. This heterogeneous debris transuranic waste stream was generated after January 25, 1990 and before March 20, 1997. The waste was packaged in 55-gallon drums, then shipped to the transuranic waste storage facility in 'E' area of the Savannah River Site. This acceptable knowledge report includes information relating to the facility's history, configuration, equipment, process operations and waste management practices. Information contained in this report was obtained from numerous sources including: facility safety basis documentation, historical document archives, generator and storage facility waste records and documents, and interviews with cognizant personnel. All referenced documentation is maintained in files located in the WIPP Records Facility located in Building 642-E at the Savannah River Site. This report is fully responsive to the requirements of Section B4 'Acceptable Knowledge' from the 'Hazardous Waste Facility Permit Issued to Waste Isolation Pilot Plant', EPA No. NM48901390882, and provides a sound (and auditable) characterization that satisfies WIPP criteria for Acceptable Knowledge.