Radwaste Solutions

The DOE's OEM and contractor CHPRC are testing a conveyance system that will pump engineered grout through more than 1,500 feet of pipe to three underground at-risk structures at the Hanford Site. (Credit: OEM)

As the Hanford Site continues a phased remobilization of site operations, the Department of Energy’s Office of Environmental Management and its contractor CH2M HILL Plateau Remediation Company (CHPRC) recently began designing and constructing a full-scale, off-site mock-up to support the stabilization of three underground structures with engineered grout, the DOE announced on July 7.

Located near the former Plutonium Finishing Plant, the structures—the 216-Z-2 Crib, 216-Z-9 Crib, and 241-Z-361 Settling Tank—received liquid waste during Hanford’s plutonium production operations and contain residual radioactive and chemical contamination. A 2019 report indicates that the structures are at risk of age-related failure.

For the second time, the Nuclear Regulatory Commission has extended the deadline for submitting comments on a draft environmental impact statement (EIS) for Holtec International’s application to construct and operate a consolidated interim storage facility for spent nuclear fuel and greater-than-Class C waste in southeastern New Mexico. As published in the June 24 Federal Register, the new deadline is September 22.

Ontario Power Generation (OPG) has officially canceled its plan to construct a deep geologic repository (DGR) for low- and intermediate-level radioactive waste at its Bruce site, withdrawing the project from Canada’s federal environmental assessment process. In a June 15 letter to OPG, Canada’s minister of Environment and Climate Change, Jonathan Wilkinson, accepted the company’s request to withdraw the project and end the environmental assessment.

OPG also informed the Canadian Nuclear Safety Commission that the company was terminating the project and asked that its site preparation and construction license application be withdrawn.

Janice Sandford, forefront, and other operators are shown in the Defense Waste Processing Facility control room. Savannah River Remediation recently upgraded its control system hardware and software. Photo: David Lawrence/URS Corp.

An upgrade to modernize computer systems across the Savannah River Site's liquid waste facilities while maintaining cybersecurity industry standards was completed recently, the site’s liquid waste contractor announced on June 25. The Savannah River Site is located in Aiken, S.C.

The Ulysse reactor before dismantling. Photo: Orano

A five-year project to dismantle the Ulysse experimental nuclear reactor at the French Alternative Energies and Atomic Energy Commission’s (CEA) Saclay nuclear research site near Paris has been completed, according to an Orano press release on June 22. Orano was contracted to decommission the low-power research and training reactor.

For the second time, the Nuclear Regulatory Commission has extended the deadline for submitting comments on the draft environmental impact statement for Holtec International’s application to construct and operate a consolidated interim storage facility for spent nuclear fuel and greater-than-Class C waste in southeastern New Mexico. As published in the June 24 Federal Register, the new deadline for comments is September 22.

The HB Line facility at SRS is located on top of the H Canyon chemical separations facility.

The HB Line facility at the Department of Energy’s Savannah River Site (SRS) in South Carolina was recently placed in a reversible safe shutdown status, the DOE announced on June 24. The shutdown will save about $40 million a year starting in 2021, compared to 2016, when the facility’s plutonium feedstock operation was at its peak.

Duane Arnold is to shut down in October. Photo: Wikimedia Commons/AsNuke

NextEra Energy is estimating that it will cost just over $1 billion to decommission its Duane Arnold Energy Center over a period of 60 years, including spent fuel management and site restoration costs, according to a post-shutdown decommissioning activities report (PSDAR) and a decommissioning cost estimate the company submitted to the Nuclear Regulatory Commission in April. The NRC, with publication in the June 19 Federal Register, is requesting comments on the Duane Arnold PSDAR until October 19.

Oak Ridge, Tenn.–based Navarro Research and Engineering has been awarded a 10-year environmental program services contract worth up to $350 million for cleanup services at the Nevada National Security Site, the Department of Energy announced on June 17. The new contract replaces the current NNSS cleanup contract, also held by Navarro Research and Engineering, which expires on July 31.

Massachusetts Attorney General Maura Healey announced on June 17 that the state has agreed to withdraw its petitions with the Nuclear Regulatory Commission against the transfer of Pilgrim’s license to Holtec International for decommissioning. The settlement agreement, signed between Massachusetts and Holtec subsidiaries Holtec Pilgrim and Holtec Decommissioning International (HDI), also resolves two lawsuits the state filed to challenge the NRC’s approval of the license transfer application as well as several administrative challenges Holtec filed to contest conditions in the January 2020 state water permit for the plant.

In return, Holtec has agreed to provide additional decommissioning trust fund obligations along with stricter radiological cleanup limits and additional site monitoring and oversight.

The Nuclear Regulatory Commission will hold a webinar on June 23 to discuss Holtec International’s license application to build and operate a consolidated interim storage facility for spent nuclear fuel and greater-than-Class C waste in southeastern New Mexico.

The Department of Energy has signed an amendment to a 2016 sales agreement with Global Laser Enrichment (GLE) that will provide the company with access to large stockpiles of DOE-owned depleted uranium hexafluoride (DUF6) tails as GLE looks to build its proposed uranium enrichment facility at the DOE’s Paducah site in Kentucky. As announced on June 5, the amendment is one of the conditions of a 2019 agreement by Australia’s Silex Systems Limited, Canada’s Cameco Corporation, and GE Hitachi Nuclear Energy for the restructuring of GLE, the exclusive licensee of Silex’s laser uranium enrichment technology.

Separately, the DOE announced on June 5 that it has issued a formal record of decision for the shipment and disposal of depleted uranium oxide from the former gaseous diffusion plants at the department’s Paducah and Portsmouth sites in Ohio to one or more disposal facilities in the western United States.

The antinuclear organization Beyond Nuclear has filed an appeal with the U.S. Court of Appeals for the District of Columbia Circuit requesting a review of the Nuclear Regulatory Commission’s decision to deny its petition against Holtec International’s application to build and operate a consolidated interim storage facility (CISF) for spent nuclear fuel in southeastern New Mexico.

The Department of Energy’s Office of Environmental Management on May 27 issued a final request for proposals for the cleanup of the Idaho National Laboratory site, near Idaho Falls, Idaho, and the Fort Saint Vrain facility near Platteville, Colo. The 10-year contract for the projects—collectively called the Idaho Cleanup Project—has an estimated ceiling of about $6.4 billion.

An aerial view of the Radioactive Materials Handling Facility at California’s Santa Susana Field Laboratory, with the DOE-owned buildings numbered. Photo: DOE

Under an agreement with the state of California, the Department of Energy will soon resume environmental cleanup of the Energy Technology Engineering Center (ETEC) at the Santa Susana Field Laboratory site in Ventura, Calif., about 36 miles northwest of Los Angeles. In a legal order signed on May 19 with the California Department of Toxic Substances Control, the department has agreed to demolish 10 of the remaining DOE-owned buildings within the ETEC, including several of the most contaminated buildings.

The Department of Energy has awarded a $13-billion tank closure contract for services at its Hanford Site, near Richland, Wash. The 10-year contract was awarded on May 14 to Hanford Works Restoration, a joint venture of BWXT Technologies and Fluor Corporation that also includes DBD and INTERA, two preselected small businesses that provide specialized modeling and regulatory expertise, respectively.

Hanford Works Restoration will take over from Hanford’s current tank waste contractor, Washington River Protection Solutions (WRPS), whose contract expires at the end of September. The WRPS contract includes a clause that allows the DOE to end the contract earlier to align with a 60-day transition to the new contract.

The Optimus-H transport cask on display at the 2020 Waste Management Conference in Phoenix, Ariz.

Jeff England, director of transportation projects for NAC International, pointed to the large stainless steel canister, which looked like a giant-­sized silver dumbbell, perched on the flatbed of a semitrailer truck parked in the middle of the expansive exhibit hall in the Phoenix Convention Center. NAC, a provider of nuclear storage, transportation, and consulting services, was using the 2020 Waste Management Conference, held March 8–12 in Phoenix, Ariz., to unveil its newest transport casks, the Optimus-­H and Optimus-­L.

“These are a different niche,” England said of the casks, which were designed to transport radioactive materials, including remote-­handled transuranic waste, high-­activity intermediate-­level waste, low-­enriched uranium, and fissile materials. “You have a lot of [small] drum-­sized packages, and you also have a lot of big packages that will hold around 10 55-­gallon drums. But there’s not anything in between. We hold a 110-­gallon drum capacity.”

The Department of Energy’s Office of Environmental Management has not followed best practices or DOE policy in pursuing alternatives for pretreating radioactive tank waste at the Hanford Site, near Richland, Wash., according to a report released on May 12 by the Government Accountability Office. The DOE has spent over $400 million since 2013 looking into alternatives to pretreating Hanford’s low-activity waste (LAW), yet the department has not properly defined a mission need or a life-cycle cost estimate for its preferred alternative, according to the report.

2020 Waste Management Conference plenary speakers included (from left) Michael Lempke, of Huntington Ingalls Industries, William Magwood, of the NEA, and the DOE’s William “Ike” White. Photo: WM Symposia/Flash Gordon.

The 2020 Waste Management Conference, held March 8–12 in Phoenix, Ariz., kicked off just days before the World Health Organization declared the spread of the novel coronavirus a pandemic. When the conference began, it was still unclear how extensive the coronavirus outbreak would be, and meeting organizers later learned that two attendees were tested for COVID-19, the disease caused by the virus, in the days following the meeting. Fortunately, neither of the attendees tested positive.

The global engineering company Jacobs, under a contract with Radioactive Waste Management Ltd. (RWM), will be studying the release of radioactivity from irradiated graphite taken from reactor core samples at the United Kingdom’s nuclear power plants. According to Jacobs, the research will support RWM, a subsidiary of the U.K. government’s Nuclear Decommissioning Authority, in its analysis of graphite behavior and the options for graphite waste management in the future.