The demolition of Old Town Area Buildings 25A, 40, 41, 44, 44A, 44B, 52 and 52A made way for Chu Hall (Building 30) and a General Purpose Laboratory (Building 33). A phased plan has been developed to abate and demolish the remaining buildings within the Old Town area, namely Buildings 4, 5, 7, 7C, 14, 16 and 16A. Soil removal will be performed to address existing subsurface contamination. The demolition of the subject buildings is part of an overall plan to remediate and redevelop the Old Town area of the Lab.
Critical Decision 1 (CD1, Selection of Alternatives) for the project was approved in October 2013. The project was divided into several phases with each phase addressing structure demolition, removal of contaminated soils associated with the structures, and stabilization of the affected areas. CD2/3 (Approve Performance Baseline and Approve Start of Construction/Execution) for Phase I was approved in November 2014.
Phase I, which included Buildings 5, 16, and 16A and the slabs of previously demolished Buildings 40, 41, 52, and 52A, is complete. Phase II, which is expected to include Buildings 4 and 14 and adjacent soils, is in planning. Phases III and IV, which include structures and contaminated soils in the Phase I areas but were not included in Phase I, are in progress. Additional Phases are dependent on available funding and would include Buildings 7 and 7C.
The DOE has made a NEPA Categorical Exclusion determination for this project. The University of California LBNL prepared an environmental analysis and checklist document to support CEQA coverage for the project under the 2006 Long-Range Development Plan and Environmental Impact Report. The UC Regents subsequently adopted CEQA Findings for the project.