Nuclear Waste in Virginia

fuel assemblies from four commercial nuclear power reactors generate most of the high-level radioactive waste in Virginia
fuel assemblies from four commercial nuclear power reactors generate most of the high-level radioactive waste in Virginia
Source: Department of Energy, Yucca Mountain

Virginia produces two types of nuclear waste, low-level and high-level radioactive waste. None of Virginia's radioactive waste is recycled or reprocessed; all of it is intended to be isolated for thousands of years at special disposal sites.

Low-level radioactive waste includes radioactively contaminated protective clothing, tools, filters, and rags from nuclear power plant maintenance and operations, plus some medical facility wastes and a few other items. Low-level waste is categorized into three classes.

Class A wastes have the lowest concentration of radioactive materials, mostly materials with half-lives of less than five years. Class B wastes have longer half-lives than Class A materials, while Class C wastes have longer half-lives than Class B materials.

Mill tailings, yet another form of radioactive waste, could be produced if Virginia ever permitted mining of the rich uranium deposit at Coles Hill in Pittsylvania County.

States have created compacts for sharing the responibilities of nuclear waste disposal. The theory was that each compact would identify a location for storing low-level nuclear waste. Members would negotiate which state would allow such a site, and how other states would compensate the host state for its willingness to accept material that was feared by the general public because it was labelled "radioactive."

The multi-state compacts have evolved over time. South Carolina originally accepted radioactive wastes from Virginia, but the terms of the compact changed.

Until 2008, Virginia companies could ship low-level radioactive waste to Barnwell, South Carolina for disposal. Since 2008, Virginia's low-level Class A radioactive waste has been transported to Clive, Utah. Since 2012, a facility in Andrews, Texas has been willing to accept Class A, B, and C waste.

states have compacts for radioactive waste disposal, but four disposal sites have become dominant
states have compacts for radioactive waste disposal, but four disposal sites have become dominant
Source: U.S. Department of Energy, Waste from Nuclear Power Plants

"High-level" radioactive wastes, with half-lives that exceed those of Class C wastes, is classified as Greater Than Class C (GTCC). In Virginia, most high-level radioactive waste comes from nuclear power plants. Virginia's four civilian reactors "burn" uranium pellets that were placed in fuel rods, and carefully aligned in fuel assemblies, to produce electricity. When a certain percentage of the uranium has decayed, the spent fuel assemblies are treated as high-level radioactive waste.

In addition to the residual radioactivity of the U-235 in rector fuel, the metal in the assemblies holding the fuel pellets has been "activated" by neutrons. The iron-55, cobalt-60, nickel-63, carbon-14, and caesium-137 isotopes are radioactive. Irradiated fuel assemblies emit dangerous gamma rays, especially for the first 50 years after removal from a reactor. To intercept the radiation and disperse heat, spent fuel assemblies are typically stored underwater. After normal radioactive decay, the assemblies may be moved from the "wet storage" pools and transferred into "dry casks." Those are concrete cylinders that may be stored on land, freeing up space in the pool for hotter fuel assemblies.2

the nuclear fuel cycle ends with highly radioactive waste stored temporarily at two sites in Virginia
the nuclear fuel cycle ends with highly radioactive waste stored temporarily at two sites in Virginia
Source: U.S. Department of Energy, Waste from Nuclear Power Plants

The AREVA and BWXT facilities in Lynchburg have fabricated fuel assemblies used in commercial and US Navy nuclear power reactors. Those assemblies are radioactive, but are valuable products rather than "waste." The production of the assemblies, using highly enriched uranium, does generate low-level radioactive waste that must be handled differently from standard municipal solid waste. No high-level or transuranic waste is generated in the production of the fuel assemblies, but BWXT generates some high-level waste in Lynchburg from its research on reactors used by the US Navy.1

Nuclear reactors provide power for new aircraft carriers and submarines built at Newport News. Fuel assemblies are installed in the reactors when a ship is built. Later, when aircraft carriers go through Refueling and Complex Overhauls, spent fuel assemblies are removed and fresh ones (with more U-235) are installed.

The used fuel assemblies, with highly-radioactive activated metal now emitting gamma rays, are shipped to the Naval Reactors Facility at the Department of Energy's Idaho National Laboratory. Used assemblies are examined there, then stored in the Expended Core Facility/Dry Storage Facility managed by the Department of Energy.3

Ships with those reactors are based at Naval Station Norfolk. Low-level waste is created during standard maintenance operations. That waste is transported, about one each month, to commercial disposal sites in Texas or Utah.4

Virginia faces fewer challenges with nuclear waste disposal than some other states. In the United States, most transuranic waste is generated from the reprocessing of nuclear fuel and production of nuclear weapons involving plutonium. Such wastes were stored at the Hanford site in the state of Washington and at the Savannah River site in South Carolina. Since 1999 the transuranic wastes produced by the Department of Defense and its contractors - but not from commercial nuclear power plans - has been shipped to the national repository for such material, a 2,000-foot-thick salt bed at the Waste Isolation Pilot Plant (WIPP) in Carlsbad, New Mexico. There is never been nuclear weapons production or reprocessing of spent fuel assemblies in Virginia.

High-level nuclear waste disposal, including all the spent fuel assemblies from nuclear power plants in Virginia, was supposed to go to Yucca Mountain in Nevada. In 2010 the Federal government dropped plans for a permanent nuclear waste repository at Yucca Mountain and has not defined any alternative location. Dominion Virginia Power must store all of its high-level waste, including waste classified as Greater Than Class C (GTCC), on-site at the Surry and North Anna power plants.

placards identify radioactive shipments
placards identify radioactive shipments
Source: U.S. Department of Transportation, Radioactive Material Regulations Review

Radioactive leaks in Virginia are rare. In 1982, a fire in a storage building at the Surry nuclear power plant burned waste with low levels of radioactivity. Smoke and water from the building exceeded the thresholds set by the Nuclear Regulatory Commission by a tiny level, no more than .02 percent higher than the acceptable level.

In 2000, a leak was discovered in a pool at the BWXT site in Lynchburg where irradiated reactor equipment and spent fuel rods were being stored. The amount of radioactivity released by the escape of 250 gallons per day next to the James River was slightly higher than legally permitted.5

Opposition to development of the Coles Hill uranium deposit included communities downstream. Virginia Beach gets some of its drinking water from the Roanoke River, and depends upn tourism City officials were outspoken regarding concerns that structures containing mill tailings might be breached in a storm like 1969's Hurricane Camille, and radioactive particles could be flushed downstream into Lake Gaston. Though the amount of radiation reaching customers in Virginia Beach might be minimal, the possibility that tourists would react with fear and avoid trips to Virginia Beach alarmed city officials.6

Low-Level Radioactive Waste in Virginia

High-Level Radioactive Waste in Virginia

Transporting Radioactive Waste in Virginia

radioactive waste in casks can be transported by truck or rail
radioactive waste in casks can be transported by truck or rail
Source: Department of Energy, Yucca Mountain

Links

References

1. "Disposition of Surplus Highly Enriched Uranium - Final Environmental Impact Statement, Volume 1," US Department of Energy, June 1996, p.3-75, p.3-95 https://books.google.com/books?id=4_wwAQAAMAAJ (last checked May 16, 2017)
2. "Radioactive Waste Management," World Nuclear Association, April 2018, http://www.world-nuclear.org/information-library/nuclear-fuel-cycle/nuclear-wastes/radioactive-waste-management.aspx (last checked February 11, 2019)
3. "Navy Defueling Enterprise's Nuclear Reactors," Military.com, July 25, 2013, https://www.military.com/daily-news/2013/07/25/navy-defueling-enterprises-nuclear-reactors.html; "Watchdog report: Enterprise's disposal could exceed $1 billion," Daily Press, August 3, 2018, https://www.dailypress.com/business/newport-news-shipyard/dp-nws-enterprise-gao-20180802-story.html (last checked February 10, 2019
4. T. J. Mueller, J. M. Steele, A. C. Gellender, "Environmental Monitoring and Disposal of Radioactive Wastes From U.S. Naval Nuclear-Powered Ships and Their Support Facilities," Naval Nuclear Propulsion Program, Report NT-18-1, May 2018, pp.9-10, p.16, https://www.energy.gov/sites/prod/files/2018/07/f53/NT-18-1.pdf (last checked February 11, 2019)
5. "Epidemic of Radioactivity Leaks from U.S. Nuclear Plants Includes Irradiated Fuel Pools," Beyond Nuclear, August 20, 2010, http://www.beyondnuclear.org/storage/pool%20leaks%20fact%20sheet.pdf; "Radioactivity Release Reported at Surry Plant," Washington Post, April 19, 1982, https://www.washingtonpost.com/archive/local/1982/04/19/radioactivity-release-reported-at-surry-plant/3c785723-72e9-4b78-9317-433a35563f8f/ (last checked February 10, 2019)
6. "Lake Gaston Association told to worry about uranium. Also encouraged to ask more questions," Atomic Insights, January 7, 2016, https://atomicinsights.com/lake-gaston-association-told-to-worry-about-uranium-and-to-ask-more-questions/ (last checked May 16, 2017)


Waste Management in Virginia
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