Assessment of uranium, plutonium, and Np-237 content of high level liquid waste on E-Area vault package limits
The purpose of this report is to assess the waste tank inventory of uranium, plutonium and Np-237 to determine potential impacts on waste certification for the E-Area vaults (EAV). Procedure WAC 3.10, Rev. 1, of the 1S Manual imposes administrative control limits for radioactive material in waste packages sent to the EAV. Waste tank supernate contains trace amounts of U, Pu, and Np. Thus any material contaminated with supernate and placed in a B-25 waste package may contain one or more of these elements' radioactive isotopes. This report uses material inventory data, solubility data and tank volumes to determine the potential-, for waste packages, contaminated with waste tank supernate, to exceed the administrative control limits of procedure WAC 3. 10, Rev. 1, for U-233, U-234, U-235, U-236, U-238, Np-237, Pu-238, Pu-239, Pu-240, Pu-241, and Pu-242.