Low Level Radioactive Waste Repositories : An Analysis of Costs Low level radioactive waste (LLW) arises in the normal operation of nuclear power plants and fuel cycle facilities as well as from the use of radioactive isotopes in medicine industry and agriculture. This report sets out the costs of operating disposal sites for LLW in OECD countries as well as the factors that may affect the costs of sites being developed. This publication will be of special interest to experts in the field of radioactive waste management and economics of the nuclear fuel cycle.