“…Calculations were performed for two initial inventories of UF 4 : 500,000 and 630,000 metric tons (t). These values are consistent with 560,000 and 705,000 t of disposed uranium hexafluoride (UF 6 ), respectively, discussed in Folga and Kier (2001). Disposal was in either 30-or 50-gal drums.…”