Appendix A Inventory and Characteristics of Spent Nuclear Fuel, High-Level Radioactive Waste, and Other Materials Inventory and Characteristics of Spent Nuclear Fuel, High-Level Radioactive Waste, and Other Materials TABLE OF CONTENTS Section Page A. Inventory and Characteristics of Spent Nuclear Fuel, High-Level Radioactive Waste, and Other Materials ................................................................................................................................. A-1 A.1 Introduction .............................................................................................................................. A-1 A.1.1 Inventory Data Summary .................................................................................................... A-2 A.1.1.1 Sources ......................................................................................................................... A-2 A.1.1.2 Present Storage and Generation Status ........................................................................ A-4 A.1.1.3 Final Waste Form ......................................................................................................... A-6 A.1.1.4 Waste Characteristics ................................................................................................... A-6 A.1.1.4.1 Mass and Volume ................................................................................................. A-6 A.1.1.4.2 Radionuclide Inventories ...................................................................................... A-8 A.1.1.4.3 Chemical Composition ......................................................................................... A-9 A.1.1.4.4 Thermal Output .................................................................................................... A-9 A.1.1.4.5 Canister Data ...................................................................................................... A-10 A.2 Materials................................................................................................................................. A-11 A.2.1 Commercial Spent Nuclear Fuel ....................................................................................... A-11 A.2.1.1 Background ................................................................................................................ A-11 A.2.1.2 Sources ....................................................................................................................... A-11 A.2.1.3 Present Status ............................................................................................................. A-11 A.2.1.4 Final Spent Nuclear Fuel Form .................................................................................. A-13 A.2.1.5 Spent Nuclear Fuel Characteristics ............................................................................ A-13 A.2.1.5.1 Mass and Volume ............................................................................................... A-14 A.2.1.5.2 Amount and Nature of Radioactivity ................................................................. A-14 A.2.1.5.3 Chemical Composition ....................................................................................... A-20 A.2.1.5.4 Thermal Output .................................................................................................. A-20 A.2.1.5.5 Physical Parameters ............................................................................................ A-21 A.2.2 DOE Spent Nuclear Fuel ................................................................................................... A-21 A.2.2.1 Background ................................................................................................................ A-21 A.2.2.2 Sources ....................................................................................................................... A-25 A.2.2.3 Present Storage and Generation Status ...................................................................... A-26 A.2.2.4 Final Spent Nuclear Fuel Form .................................................................................. A-27 A.2.2.5 Spent Nuclear Fuel Characteristics ............................................................................ A-28 A.2.2.5.1 Mass and Volume ............................................................................................... A-28 A.2.2.5.2 Amount and Nature of Radioactivity ................................................................. A-28 A.2.2.5.3 Chemical Composition ....................................................................................... A-28 A.2.2.5.4 Thermal Output .................................................................................................. A-33 A.2.2.5.5 Quantity of Spent Nuclear Fuel Per Canister ..................................................... A-33 A.2.2.5.6 Spent Nuclear Fuel Canister Parameters ............................................................ A-33 A.2.3 High-Level Radioactive Waste.......................................................................................... A-36 A.2.3.1 Background ................................................................................................................ A-36 A.2.3.2 Sources ....................................................................................................................... A-37 A.2.3.2.1 Hanford Site........................................................................................................ A-37 A.2.3.2.2 Idaho National Engineering and Environmental Laboratory ............................. A-38 A.2.3.2.3 Savannah River Site ........................................................................................... A-38 A.2.3.2.4 West Valley Demonstration Project.................................................................... A-38 A.2.3.3 Present Status ............................................................................................................. A-38 A-iii Inventory and Characteristics of Spent Nuclear Fuel, High-Level Radioactive Waste, and Other Materials Section Page A.2.3.3.1 Hanford Site........................................................................................................ A-38 A.2.3.3.2 Idaho National Engineering and Environmental Laboratory ............................. A-38 A.2.3.3.3 Savannah River Site ........................................................................................... A-39 A.2.3.3.4 West Valley Demonstration Project.................................................................... A-39 A.2.3.4 Final Waste Form ....................................................................................................... A-39 A.2.3.5 Waste Characteristics ................................................................................................. A-39 A.2.3.5.1 Mass and Volume ............................................................................................... A-39 A.2.3.5.2 Amount and Nature of Radioactivity ................................................................. A-40 A.2.3.5.3 Chemical Composition ....................................................................................... A-43 A.2.3.5.4 Thermal Output .................................................................................................. A-46 A.2.3.5.5 Quantity of Waste Per Canister .......................................................................... A-48 A.2.3.5.6 High-Level Radioactive Waste Canister Parameters .......................................... A-48 A.2.3.5.7 Nonstandard Packages ........................................................................................ A-49 A.2.4 Surplus Weapons-Usable Plutonium ................................................................................. A-50 A.2.4.1 Background ................................................................................................................ A-50 A.2.4.2 Sources ....................................................................................................................... A-51 A.2.4.3 Present Storage and Generation Status ...................................................................... A-51 A.2.4.4 Final Waste Form ....................................................................................................... A-51 A.2.4.5 Material Characteristics ............................................................................................. A-51 A.2.4.5.1 Mixed-Oxide Fuel .............................................................................................. A-51 A.2.4.5.2 Immobilized Plutonium ...................................................................................... A-53 A.2.5 Commercial Greater-Than-Class-C Low-Level Waste ..................................................... A-57 A.2.5.1 Background ................................................................................................................ A-57 A.2.5.2 Sources ....................................................................................................................... A-58 A.2.5.3 Present Status ............................................................................................................. A-58 A.2.5.4 Final Waste Form ....................................................................................................... A-59 A.2.5.5 Waste Characteristics ................................................................................................. A-59 A.2.6