On the site of the Slovak Nuclear Power Plant Bohunice a complete Waste Treatment Center for low and intermediate solid and liquid waste constructed. The facilities for volume reduction and further treatment are the incinerator, the high-force compactor and the evaporator. The facility for conditioning the waste is the cementation where the final product — filled concrete containers as the accepted waste package for long-term storage — is produced. The containers are transported to the Slovak Surface Repository for low and intermediate waste. Since March 2000, both projects are in hot operation. The first storage boxes are filled with the containers. First results gained during the first operation phase of the Waste Treatment Center will be discussed.