between 0.08 and 0.14 µSv per hour. The volume of activity in the air at the disposal site and within the overall Kurchatov Institute site was by three to five orders of magnitude less than allowable levels for urban populations. External radiation exposure of personnel by years is presented in Table 15-2.

Thus, the effective organization of work, the equipment used for operations, and radiation-monitoring instruments allowed this repository containing high-level and other waste to be decommissioned and eliminated rather quickly while meeting radiation safety requirements for onsite personnel and the local population within a major city. Results of the 3-year remediation effort have demonstrated that the choice of low-, intermediate-, and high-level waste management technologies was correct. During 2005, Repository No. 4, where canisters of high-level waste were encased in strong concrete, was successfully decommissioned. Organizational and technical measures that were applied made it possible to complete the work in the shortest possible time in full compliance with all rules