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The 232Z Building in the 200 West Area has no documented evidence of meeting the structural design requirements for withstanding seismic loadings. The 232Z Building was originally built in 1959. This concrete block structure is south of the 234-5Z Building. The 232Z Building (Incinerator and Leach Facility) start-up occurred in 1961, and the facility has been used for the extraction and recovery of plutonium from contaminated materials. A glovebox incinerator is located in the first floor process area, and was used to incinerate dry wastes from which radioactive materials were then recovered. The design calculations for the original building are not retrievable. The objective of this evaluation is to qualify the 232Z Building in it's current configuration for the appropriate seismic loads in accordance with the requirements of SDC 4.1. The structural capacities of the masonry walls and the reinforced concrete slabs and beams of the 232Z Building exceed the dead, live and seismic demand loadings. The building complies with the UBC seismic loading requirements for the 0.20 g maximum ground acceleration earthquake.