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Appendix C ·eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee Spent Nuclear Fuel issues The DOE spent nuclear fuel includes both irradiated and unirradi- ated fuel from various reactors and experiments (including fuel from the Fast Flux Test Facility reactor), test reactor fuel, Navy fuel, and even damaged core debris from the Three Mile Island Unit 2 accident. This study does not consider research needs relating to the disposition of spent nuclear fuel, although DOE has ownership of substantial amounts with widely varying characteristics and integrity. These fuels are stored at H anford, Savan nah River Site, and I N EE L. A large fraction of DOE's fuel inventory consists of the 2,200 metric tons of zirconium-clad uranium metal fuel in the two Hanford K-Basins. Nearly half of this fuel is damaged, some to the point of fine scrap and sludge. There is an on-going program to collect most of this material in multi-canister overpacks. The material is then dried and rendered inert prior to its disposal in the geological repository. However, several tons of finely divided particulates are slated to be dissolved, added to the HEW tanks at Hanford, and co-disposed with the HEW. H ~ G H - L E V E E W A S T E 114