NV5 was retained to determine if residual uranium in the environment from a decommissioned and demolished uranium fuel manufacturing facility was mobile, and if it posed an immediate or substantial threat to the environment and nearby population. This project required a comprehensive review of past operations at the facility (from the late 1950s and early 1960s), a review of operational and contamination events, a review of environmental monitoring and sampling information (including data collected by the U.S. Environmental Protection Agency), independent calculations and analysis, and a review of opposing expert witness reports. In addition to soil and air sampling data, surface water, sediment, and ground water samples were evaluated to determine potential environmental mobility. After a full review of historical references and data, as well as independent calculations, NV5 concluded that the residual uranium radionuclides were not and will not be mobile, and therefore would cause no immediate or substantial threat to the nearby environment.
