Nuclear waste storage (1 - 10 of 111 items)
Nuclear Waste: DOE Needs to Improve Cost Estimates for Transuranic Waste Projects at Los Alamos
GAO-15-182: Published: Feb 18, 2015. Publicly Released: Mar 23, 2015.
The National Nuclear Security Administration's (NNSA) project to remove transuranic (TRU) waste—primarily discarded equipment and soils contaminated with certain radioactive material—at Los Alamos National Laboratory (LANL) did not meet its cost estimates. At the end of fiscal year 2014, NNSA had spent about $931 million on the project, exceeding its 2006 estimate of $729 million by $202 milli...
Hanford Cleanup: Condition of Tanks May Further Limit DOE's Ability to Respond to Leaks and Intrusions
GAO-15-40: Published: Nov 25, 2014. Publicly Released: Dec 16, 2014.
From 2012 to 2014, the Department of Energy (DOE) assessed the physical condition of the 177 storage tanks at its Hanford, Washington, site in which it stores about 56 million gallons of nuclear waste and found them to be in worse condition than it assumed in 2011 when developing its schedule for emptying the tanks. For the 149 single-shell tanks (SST), DOE previously pumped nearly all of the liqu...
Commercial Spent Nuclear Fuel: Observations on the Key Attributes and Challenges of Storage and Disposal Options
GAO-13-532T: Published: Apr 11, 2013. Publicly Released: Apr 11, 2013.
In November 2009, GAO reported on the attributes and challenges of a Yucca Mountain repository. A key attribute identified was that the Department of Energy (DOE) had spent significant resources to carry out design, engineering, and testing activities on the Yucca Mountain site and had completed a license application and submitted it to the Nuclear Regulatory Commission, which has regulatory autho...
Department of Energy: Concerns with Major Construction Projects at the Office of Environmental Management and NNSA
GAO-13-484T: Published: Mar 20, 2013. Publicly Released: Mar 20, 2013.
In response to GAO reports over the past few years on management weaknesses in major projects (i.e., those costing $750 million or more), the Department of Energy (DOE) has undertaken a number of reforms since March 2009, including those overseen by the Office of Environmental Management (EM) and the National Nuclear Security Administration (NNSA). For example, DOE has updated program and project...
Nuclear Material: DOE's Depleted Uranium Tails Could Be a Source of Revenue for the Government
GAO-11-752T: Published: Jun 13, 2011. Publicly Released: Jun 13, 2011.
Since the 1940s, the Department of Energy (DOE) has been processing natural uranium into enriched uranium, which has a higher concentration of the isotope uranium-235 that can be used in nuclear weapons or reactors. This has resulted in over 700,000 metric tons of leftover depleted uranium, also known as "tails," that have varying residual concentrations of uranium-235. The tails are stored at DOE...
Nuclear Waste: Disposal Challenges and Lessons Learned from Yucca Mountain
GAO-11-731T: Published: Jun 1, 2011. Publicly Released: Jun 1, 2011.
The United States has generated over 75,000 metric tons of spent nuclear fuel and high-level nuclear waste--extremely hazardous substances--at 80 sites in 35 states and is expected to more than double that amount by 2055. The Nuclear Waste Policy Act of 1982 (NWPA) required the Department of Energy (DOE) to investigate a geologic repository for nuclear waste. In 1987, Congress amended NWPA to dire...
Commercial Nuclear Waste: Effects of a Termination of the Yucca Mountain Repository Program and Lessons Learned
GAO-11-229: Published: Apr 8, 2011. Publicly Released: May 10, 2011.
Spent nuclear fuel--considered very hazardous--is accumulating at commercial reactor sites in 33 states. The Nuclear Waste Policy Act of 1982, as amended, directs the Department of Energy (DOE) to dispose of this waste in a repository at Yucca Mountain, Nevada. In June 2008, DOE submitted a license application for the repository, but in March 2010 moved to withdraw it. However, the Nuclear Regulat...
DOE Nuclear Waste: Better Information Needed on Waste Storage at DOE Sites as a Result of Yucca Mountain Shutdown
GAO-11-230: Published: Mar 23, 2011. Publicly Released: May 5, 2011.
The Department of Energy's (DOE) Office of Environmental Management (EM) is responsible for storing and managing a total of about 13,000 metric tons of nuclear waste--spent nuclear fuel and high-level waste--at five DOE sites in Colorado, Idaho, New York, South Carolina, and Washington. Also, a joint DOE-Navy program stores spent nuclear fuel from warships at DOE's Idaho site. DOE and the Navy int...
Nuclear Waste Management: Key Attributes, Challenges, and Costs for the Yucca Mountain Repository and Two Potential Alternatives
GAO-10-48: Published: Nov 4, 2009. Publicly Released: Dec 2, 2009.
High-level nuclear waste--one of the nation's most hazardous substances--is accumulating at 80 sites in 35 states. The United States has generated 70,000 metric tons of nuclear waste and is expected to generate 153,000 metric tons by 2055. The Nuclear Waste Policy Act of 1982, as amended, requires the Department of Energy (DOE) to dispose of the waste in a geologic repository at Yucca Mountain, ab...
Nuclear Waste: DOE Lacks Critical Information Needed to Assess Its Tank Management Strategy at Hanford
GAO-08-793: Published: Jun 30, 2008. Publicly Released: Jun 30, 2008.
The Department of Energy (DOE) manages more than 56 million gallons of radioactive and hazardous waste stored in 149 single-shell and 28 double-shell underground tanks at its Hanford Site in Washington State. Many of these aging tanks have already leaked waste into the soil. Meanwhile, DOE's planned process for emptying the tanks and treating the waste--mixing it with molten glass and solidifying...