Hanford Cleanup: DOE's Efforts to Close Tank Farms Would Benefit from Clearer Legal Authorities and Communication, Report to Congressional Committees [open pdf - 4MB]
From the Highlights: "The Hanford site in Washington State contains about 54 million gallons of nuclear waste, which is stored in 177 underground storage tanks. In fiscal years 1997 through 2019, DOE [U.S. Department of Energy] spent over $10 billion to maintain Hanford's tanks and retrieve waste from them. DOE expects to spend at least $69 billion more on activities to retrieve tank waste and close tanks, according to a January 2019 DOE report. Senate Report 116-48, accompanying the National Defense Authorization Act for Fiscal Year 2020, included a provision for GAO [Government Accountability Office] to review the status of tank closures at Hanford. GAO's report examines the status of DOE's efforts to retrieve tank waste, challenges DOE faces in its effort to close the C-farm, as well as DOE's approach for closing the remaining tank farms."
Government Accountability Office: https://www.gao.gov/