At its Hanford Site in Washington State, the Dept. of Energy (DoE) is responsible for one of the world¿s biggest cleanup projects: the treatment and disposal of about 56 million gallons of radioactive and hazardous waste, stored in 177 underground tanks. Two decades and several halted efforts later, none of this waste has yet been treated, cleanup costs have grown steadily, and prospective cleanup time frames have lengthened. This report assesses: (1) DoE¿s current tank waste cleanup strategy and key technical, legal, and other uncertainties; (2) the extent to which DoE has analyzed whether this strategy is commensurate with risks from the wastes; and (3) opportunities to reduce tank waste cleanup costs. Includes recommend. Charts and tables.

These proceedings capture advances in the state of knowledge in nuclear and waste materials science and technology. In addition, the proceedings addresses the environmental issues associated with ceramic processing. Included are the status of environmental issues and their solutions, both current and proposed.

Evaluates the potential environmental impacts of a proposed mixed oxide fuel (MOX) fabrication facility that would convert depleted uranium and weapons-grade plutonium into MOX fuel.