Safety assessment and upgrading of the Maisiagala repository In Lithuania, in the past, institutional radioactive waste was disposed of in a near surface vault (Radon type) situated at Maisaigala. The design of the facility is out-dated and does not meet international recommendations concerning disposal of radioactive waste. The facility has not been operated since 1988. Although closed, this facility has never been subject to any safety assessment. Therefore there is still an uncertainty regarding its medium- and long-term safety. Possible reconstruction works to prevent any release of radioactivity into the environment are yet undefined. Therefore the main aim of this project is first to proceed with a safety assessment of the facility, and to define on that basis the necessary reconstruction works, i.e.: The additional engineering barriers to be installed around the vault; The improvement of the physical protection of the facility; The installation of equipment to monitor possible releases of radioactivity into the environment. The project comprises service, supply and works activities.
