The high level radioactive waste management is one of the important problems to solve for the public acceptance of the development of nuclear energy. Presently, the geologic disposal has the highest possibility and as for the preliminary step of the research and development of this technique, there exists several research facilities in deep underground formation around the world. Atomic Energy of Canada Ltd. has such underground research facility in undisturbed crystalline bedrock of Canadian shield. This report introduces the outline, development schedule and present situation of this facility.
