Source terms of radionuclides in shallow-land-burial sites

A research program is under way to provide source term data on the chemical and radionuclide contents of trench waters at low level radioactive waste disposal sites and to provide information on the geochemical behavior of radionuclides under simulated field conditions. Trench waters were sampled at four commercial waste burial sites and analyzed for chemical and radionuclide constituents. The sorption, diffusion and precipitation behavior of radionuclides were studied using site specific sediments and trench waters. Radionuclide leach rates from solidified waste, under simulated trench conditions, were also determined