Greater Confinement Disposal Test at the Nevada Test Site

The Greater Confinement disposal Test (GCDT) at the Nevada Test Site will be a full scale demonstration of intermediate depth burial for disposal of defense low-level radioactive wastes considered unsuitable for shallow land burial. The GCDT project will demonstrate that these wastes can be efficaciously disposed at a depth of approximately 30 meters where the probability of future inadvertent human intrusion and of potential waste migration are negligible. The GCDT will be instrumented to collect data on properties of the disposal madium (alluvial sediments). Tracers will be injected to assess the transport potential of wastes through the medium. Tracer data will be analyzed to determine the effectiveness of the disposal method