Final safety analysis report for unirradiated fuels storage facility

A building has been constructed at the Idaho Chemical Processing Plant (ICPP) to provide storage for the unirradiated fuels used in ICPP's process development work. The facility: (a) provides safe, centralized storage for these fuels; (b) provides storage that meets current fuel storage criteria; and (c) significantly reduces existing control and accountability problems. The storage facility is constructed of reinforced concrete to withstand maximum credible earthquake and tornado forces. One-foot-thick concrete walls subdivide the facility into a number of isolated storage areas. The fuels to be stored in these areas include graphite fuel elements, clad-fuel elements, pilot plant product, and samples containing uranium. An area of the facility is dedicated to the Isotopic Source Assay System (ISAS) used with the Idaho National Engineering Laboratory (INEL) safeguards survey program. Storage racks installed in each fuel storage area will maintain critically safe fuel storage arrays. The facility is provided with fire, security, and criticality detection systems. Leaking of liquids is not considered serious beause: (a) all liquid product will be stored in a common area; (b) the facility will be routinely checked to detect unusual conditions; (c) the floor is sloped to contain any liquid that does leak; (d) no method of rapidly or widely spreading the contamination can be postulated; (e) contamination spread that does occur will be detected and indicated by alpha CAMs and alpha hand and foot counters; and (f) the area will be cleaned after the spill