"Spent nuclear fuel is principally stored at 83 locations throughout the United States, including reactor storage pools, independent spent fuel storage installations, national laboratories, and defense weapons sites. Additional sites include university research and training reactors. The104 commercial nuclear generating units1 licensed to operate in 31 states discharge over 2,000 metric tons2 of spent fuel annually. The total inventory could approach 54,000 metric tons at the end of 2004. This report will be updated when new statistics become available."
CRS Report for Congress, RS22001