ABSTRACT
This chapter starts by mentioning the transport and temporary storage of low-level radioactive waste (LLW) and intermediate-level radioactive waste (ILW) and continues with the deposition of such waste with respect to criteria and conditions in nature for finding suitable sites. It deals with the principles of underground and on-ground disposal of LLW and ILW, focusing on-site selection and the role of the underground for both concept types. For belowground disposal, the role of the rock structure is even more important, for both the migration of possibly released radionuclides to the surroundings and the stability of the disposal site. The availability of roads and railways to the disposal area is of fundamental importance for construction of repositories and for bringing the waste, which can be containers or contaminated soil and solids, on site. Sedimentary soil originates from eroded soils and rocks and is often characterized by layering and lamination and strong granulometric variation with depth.
