Validation of the Rocky Flats Plant Radionuclide Inventory in the Historic Data Task Using SWEPP Assay Data Volume 2

iii This report presents the results of a descriptive statistical analysis of the isotopic characteristics of radioactive waste stored at the Idaho National Engineering and Environmental Laboratory’s Radioactive Waste Management Complex (RWMC). The report makes use of data on current stored waste, as well as previously stored waste, that has been shipped to the Department of Energy’s Waste Isolation Pilot Plant for permanent storage. Analysis results are presented on a waste type basis. Each waste type is comprised of one or more related Item Description Codes. Not all waste types at the RWMC are covered in this report. The analysis was restricted to those waste types of interest because of their similarity to waste currently buried at the Subsurface Disposal Area. The analysis was further restricted to only those waste types for which a completed measurement uncertainty analysis exists as a result of waste characterization activities associated with the recently complete