Presently there is no disposal facility that will accept this type of mixed waste, so alternatives for treating the waste prior to disposal are being evaluated. Mound Groundwater Plume . This project is designed to address a solvent-contaminated groundwater plume that came from the Mound Site prior to its recent cleanup. In late September 1998, the installation was completed on a system that is collecting contaminated ground water via a French drain and routing it to flow through a passive treatment system to remove contaminants. DOE and EPA are monitoring the system to evaluate its effectiveness.
Analytical results show that the system is effectively removing contaminants.
Building 779 was used for various plutonium fabrication procedures. As of April 1999, all 133 glove boxes had been removed. The remaining work focused on decontaminating the rest of the structure, with the intention of demolishing the building before the end of 1999. Actual demolition took place January 3, 2000. Building 771, a 176,000 ft 2 facility, was used for processing plutonium and other materials with a wide variety of processes between 1951 and 1989.