Nuclear facility and workplace with a very significant source of ionising radiation - radioactive waste repository Dukovany. The Dukovany repository was designed for the management of low and medium level radioactive waste which is generated by nuclear power plants. It is the biggest and most modern of all the repositories in the Czech Republic and it meets construction and safety standards valid in advanced European countries. The repository is situated within the area of the Dukovany nuclear power plant in the community of Rouchovany in the Trebic district. It has been in permanent operation since 1995. So far, drums containing radioactive waste generated by the operation of the Dukovany nuclear power plant have been disposed here, but it is destined also for disposal of low level radioactive waste generated at the Temelín nuclear power plant. The total volume of the disposal rooms 55 000 m3 (more than 180 000 drums) is sufficient for disposal of all low and medium level waste from both power plants, even in the case of a prolongation of their planned lifetimes by 10 years.