Low Level Radioactive Waste Liability (LLRW) Estimates

Determined the (1) Fiscal Year (FY) 2005 LLRW estimate appeared reasonable when unforeseen incurred LLRW disposal costs were taken into account and (2) the processes, methodology, and assumptions used to develop the FY 2006 disposal estimates were consistent with those used in developing the FY 2005 estimates. In addition, we verified that the LLRW expense and liability accounts were adjusted quarterly in accordance with TVA Nuclear Business Practice 263. However, we noted (1) the process and methodology for developing LLRW estimates is not documented and there is a potential lack of cross-training and (2) no physical inventory is currently done at the plants to ensure proper accounting for all LLRW. Management agreed with our findings and has taken or plans to take appropriate corrective actions.