the U.S. Nuclear Regulatory Commission and DOE to determine exactly what data will be required for safety assessment in support of repository licensing.

The MWF and the CWF are HLW forms intended for final disposition in a geologic repository. The electrometallurgical technology (EMT) Program has developed a waste-qualification program that is patterned after the protocols used for the waste qualification of Defense HLW (DHLW) borosilicate glass.6 The early phases of waste-form acceptance modeling and data collection activities by the EMT Program are being conducted during ANL's demonstration project for the EMT process. To support a final waste-acceptance decision, however, major qualification and characterization activities will continue beyond the end of the demonstration project.

To date, both commercial spent fuel and vitrified defense HLW have been subjected to detailed characterizations conducted with respect to their performance in a geologic repository.7 Such characterization data for borosilicate glass have been used to guide isolation strategies as well as initial design of engineered barrier systems to assess the viability of a geologic repository. 8 At present, only DOE SNF is being grouped by RW with respect to common characteristics. For the EMT waste forms, preliminary evaluation is being performed, and no final decision on the EMT waste form has been made by RW. This preliminary evaluation is using bounding data on these waste forms.9

To assure coordination between RW and DOE's Office of Environmental Management (EM), the “Memorandum of Agreement (MOA) for the Acceptance of DOE Spent Nuclear Fuel and High-Level Radioactive Waste” was issued.10 This MOA establishes the terms and conditions under which RW will make available disposal services to EM for DOE SNF and HLW. The responsibilities of RW and EM relative to data collection, transportation, storage (if needed), safeguards, characterization, and final acceptance for disposal of these materials are identified. The responsibility to treat the EBR fuel rests with DOE's Office of Nuclear Energy, Science, and Technology (NE), but the ultimate disposition of this treated EBR fuel and any HLW waste forms generated is the responsibility of EM. Hence the waste-acceptance activities of the EMT Program will be guided by the MOA.

Figure 2 in Chapter 2 shows a flow diagram of the interrelated waste characterization and verification activities of both RW and the producers of DOE HLW (EM and NE).11 From these activities, documents are to be produced that will support the decision for acceptance of EMT HLW forms by RW. This flow diagram is broadly similar to flow diagrams presented in “Appendix C: Subagreement on the DOE SNF and HLW Technical Baseline” in the MOA and the Savannah River Laboratory Defense

6  

DWPF Waste Acceptance Reference Manual (U), WSRC-IM-93-45, Westinghouse Savannah River Company, Savannah River Site, Aiken, SC, 1993.

7  

Mined Geologic Disposal System Waste Acceptance Criteria Document, B00000000-01717-4600-00095 REV 00, TRW Environmental Safety Systems, Inc., Las Vegas, NV, 1997, pp. 5-1 – 5-8.

8  

Mined Geologic Disposal System Waste Acceptance Criteria Document, B00000000-01717-4600-00095 REV 00, TRW Environmental Safety Systems, Inc., Las Vegas, NV, 1997.

9  

Personal communication, Steven Gomberg, DOE-RW.

10  

Memorandum of Agreement for Acceptance of Department of Energy Spent Nuclear Fuel and High-Level Radioactive Waste between the Assistant Secretary for Environmental Management (EM) U.S. Department of Energy (DOE) and the Director Office of Civilian Radioactive Waste Management (RW) U.S. DOE, Washington, DC, Department of Energy, Washington, D.C., September 1998.



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