Hanford Waste Treatment Plant: DOE Needs to Take Further Actions to Address Weaknesses in Its Quality Assurance Program, Report to the Committee on Armed Services, U.S. Senate [open pdf - 4MB]
From the Highlights: "DOE (Department of Energy) and its contractor are building the WTP (Waste Treatment and Immobilization Plant)--which consists of multiple facilities--to treat a large portion of nuclear waste at Hanford. The project has faced persistent challenges, including quality assurance problems that have delayed it by decades and more than tripled its costs, to nearly $17 billion. DOE's quality assurance framework aims to ensure that all problems are identified and do not recur."
Government Accountability Office: http://www.gao.gov/