[en] Six alternatives considered for disposal of non-routine waste expected from decontamination and decommissioning and contaminated soil are: maximum use of space between pits at the Radioactive Waste Management Complex (RWMC); subsurface expansion adjacent to current disposal areas at the RWMC; multi-tiering waste within the RWMC; multi-tiering waste adjacent to the RWMC; subsurface disposal at other INEL disposal or storage sites; and subsurface disposal at Site 14. Evaluation of these six alternatives leads to two possible solutions which offer long-term potential. These are multi-tiering of waste on land adjacent to the RWMC and subsurface disposal at Site 14. Preliminary feasibility studies of these two methods are presented. Relative advantages and disadvantages of each are discussed. A recommended plan of action and time tables are given. The plan incorporates these two alternatives and a backup approach of multi-tiered storage within the Radioactive Waste Management Complex