This report documents completion of an independent technical review by Tetra Tech EM Inc. (Tetra Tech) of: (1) decommissioning survey work plans and final radiological survey reports prepared by Boeing-Rocketdyne (Rocketdyne) for Buildings T009, T011, T019, T055, and T100; and (2) oversight and confirmation surveys of Buildings T019 and T055 performed by Department of Energy contractor Oak Ridge Institute for Science and Education.