Audit Report: Department of Energy Quality Assurance: Design Control for the Waste Treatment and Immobilization Plant at the Hanford Site [open pdf - 2MB]
"The Department of Energy is constructing the $12.2 billion Waste Treatment and Immobilization Plant (WTP) to vitrify approximately 56 million gallons of radioactive and chemically hazardous waste stored at the Hanford Site. To ensure the vitrification process is safe for workers, the public and the environment, the Department required the contractor for the WTP, Bechtel National Inc. (Bechtel), to develop and follow a quality assurance program based on the American Society of Mechanical Engineer's 'Quality Assurance Requirements for Nuclear Facility Applications' (NQA- 1) Standard. […] The Office of Inspector General received an allegation that Bechtel was missing design control documentation for the WTP and as such, could not demonstrate that equipment was appropriately manufactured. In response, we initiated an audit to determine whether design changes were approved and documented."
Department of Energy, Office of Inspector General, Report No. DOE/IG-0894
United States. Department of Energy: http://energy.gov/