Monday, May 15, 2023

NRC Revokes License of West Virginia Company

NRC Revokes License of West Virginia Company

The NRC has issued an order revoking the license of a Huntington, West Virginia, industrial 
radiography company based on its submittal of inaccurate information and lack of a qualified 
radiation safety officer.

The NRC’s Office of Investigations conducted an investigation involving APINDE Inc., which led to a 
determination that in the company’s initial application to the agency for a license to use nuclear 
materials, as well as in related correspondence, APINDE submitted an inaccurate training 
certificate and inaccurate information regarding the recent radiography experience for the 
individual proposed as the radiation safety officer. In addition, the company subsequently 
requested a new radiation safety officer be added to its license, but submitted an inaccurate 
training certificate for that individual.

Following the NRC’s initial identification of the issues, the agency issued an order on Aug. 22, 2019,
suspending APINDE’s license. Although the company provided a response acknowledging the 
errors and stating it would take corrective actions, it failed to take steps to provide the agency 
with reasonable assurance that it had addressed the issues.

Based on this lack of action, the NRC is revoking the company’s license. The revocation and 
termination of the license will take effect within 30 days unless the company can demonstrate good 
cause for that not to occur.

A copy of the revocation order will soon be made available in the NRC’s electronic documents 
system, ADAMS.

APINDE cannot conduct NRC-licensed activities unless it applies for and receives a new license.

Thursday, May 11, 2023

NRC APPROVES NEW MEXICO NUCLEAR WASTE ‘INTERIM’ STORAGE FACILITY, BUT A NEW STATE LAW AND FEDERAL COURT CHALLENGES COULD PREVENT THE PROJECT FROM GOING FORWARD

Dear Friends and Colleagues,

We are striving to block Holtec from barging high-level radioactive wastes on Lake Michigan, from Palisades in Covert Township, Michigan to the Port of Muskegon. But non-Holtec nuclear power plant sites could also barge highly radioactive wastes on Lake Michigan, if this Holtec dump in New Mexico opens, as from Wisconsin's three reactors, to the Port of Milwaukee. The barges would off-load the high-level radioactive waste containers onto trains at the ports, for the rest of the shipment journey by rail.

For more info., see: https://www.nirs.org/wp-content/uploads/factsheets/mibargefactsheet92804.pdf

The Pacific Northwest National Laboratory, working in cahoots with DOE and NRC, is also exploring options for additional nuclear power plants to barge high-level radioactive waste, not only on Lake Michigan, but also upon the surface waters of additional Great Lakes. See: https://archive.beyondnuclear.org/radioactive-waste-whatsnew/2016/1/20/doe-undertaking-logistical-planning-for-shipment-of-stranded.html

Please get this press release below out to reporters/your media lists. Thanks!

---Kevin Kamps, Beyond Nuclear and Don't Waste Michigan


 NEWS FROM BEYOND NUCLEAR

  For immediate release 

  Contact: Kevin Kamps,  kevin@beyondnuclear.org, 240-462-3216
  Diane D’Arrigo, dianed@nirs.org, 301-270-6477, extension 3
  Michael Keegan, mkeeganj@comcast.com, 734-770-1441


Rose Gardner, nmlady2000@icloud.com, 575-390-9634

Terry Lodge, Legal Counsel for DWM et al., tjlodge50@yahoo.com, 419-205-7084

Stephen Kent, skent@kentcom.com, 914-589-5988




NRC APPROVES NEW MEXICO NUCLEAR WASTE ‘INTERIM’ STORAGE FACILITY

BUT A NEW STATE LAW AND FEDERAL COURT CHALLENGES COULD PREVENT THE PROJECT FROM GOING FORWARD



LEA COUNTY, NEW MEXICO and WASHINGTON, D.C., May 9, 2023 --

Today, the Nuclear Regulatory Commission (NRC) announced it approved licensing for Holtec International’s controversial consolidated interim storage facility (CISF) in southeastern New Mexico’s Lea County, not far from the Texas border.  The facility is designed to store high-level radioactive waste from nuclear power plants across the U.S. But NRC approval notwithstanding, a recently enacted New Mexico State law and multiple federal court challenges may yet block the project.

Holtec’s Bid to Enter the Nuclear Waste Storage Business

Holtec International is a New Jersey-based company which manufactures radioactive waste containers and decommissions nuclear power plants. But, in an unprecedented scheme, Holtec recently sought to return to operations a reactor in Michigan which was already shut down and which it supposedly acquired for the purpose of decommissioning only. It has also proposed building two-dozen so-called Small Modular Nuclear Reactors (SMNRs) of its own design, using federal and state subsidies including $7.4 billion in U.S. Department of Energy (DOE)-issued nuclear loan guarantees. The SMNRs are proposed to be built in New Jersey, Michigan, and Ukraine.   

Holtec now seeks to branch out into consolidated storage and its associated high-level radioactive waste transportation. On the New Mexico CISF scheme it partnered with the Eddy-Lea Energy Alliance (ELEA), a quasi-governmental entity comprised of Eddy and Lea Counties (which border one another), as well as their county seats of Carlsbad and Hobbs, New Mexico.  ELEA owns the targeted nuclear waste CISF site’s land surface, and would take a large cut of the proceeds.



Giant Capacity May Signal Storing Foreign and Military Nuclear Waste

The Holtec-ELEA nuclear waste CISF would store up to 173,600 metric tons of highly radioactive irradiated fuel (often euphemistically called “spent” nuclear fuel or SNF, despite the fact it is highly radioactive and lethal), as well as Greater-Than-Class-C (GTCC) radioactive waste from commercial nuclear reactors. The facility would hold up to 10,000 canisters of nuclear waste, inserted into pits in a platform which sits on the surface.  Part of the canisters would stay above the natural land surface.

“If opened, the site could become home to the biggest concentration of radioactive waste in the world,” reported Diane D’Arrigo, Radioactive Waste Project Director at Nuclear Information and Resource Service.

The Holtec-ELEA CISF’s nuclear waste storage capacity would be in addition to another planned CISF some 40 miles to the east in Andrews County, Texas.  If built, it would be able to store 40,000 metric tons of irradiated fuel and GTCC in above-ground dry casks. The Texas facility, proposed by Interim Storage Partners, LLC (ISP), was granted construction and operation license approval by the Nuclear Regulatory Commission on September 13, 2021.

Since the entire SNF inventory at U.S. commercial reactors is just over 90,000 metric tons, experts have questioned why the Texas and New Mexico facilities would need a combined capacity of 213,600 metric tons, and whether the projects may be aiming to store nuclear waste from abroad and/or from the military.

There is precedent for shipping irradiated fuel from other countries to the U.S. for storage at Idaho National Labs. And in 2018, a test shipment of a mock SNF cask was transported from Europe to Colorado. Lead ISP partner Orano (formerly Areva) of France services the largest nuclear power reactor fleet of any single company in the western world. It lacks facilities in France to permanently dispose of the country’s own waste. 

The consortium backing the ISP facility includes Waste Control Specialists, LLC (WCS), a national dump for so-called “low-level” radioactive waste, located immediately adjacent to (and upstream of) the New Mexico border.  WCS loudly proclaims its ties to the U.S. military, which needs to dispose of its own highly radioactive wastes.

Nuclear Waste Transport Dangers 

Opening a CISF in the U.S. would trigger many thousands of shipments of domestic irradiated fuel across many of the Lower 48 states, through a large percentage of U.S. congressional districts. SNF canisters and transport casks are subject to so-called “routine” radiation emissions, as well as leakage and other failures, which would pose threats to thousands of communities along the transportation routes.



“Transporting highly radioactive waste is inherently high-risk,” said Kevin Kamps, Radioactive Waste Specialist with Beyond Nuclear. “Fully loaded irradiated nuclear fuel containers would be among the very heaviest loads on the roads, rails, and waterways. They would test the structural integrity of badly degraded rails, for example, risking derailments. Even if our nation’s infrastructure gets renovated someday, the shipping containers themselves will remain vulnerable to severe accidents and terrorist attacks.

They could release catastrophic amounts of hazardous radioactivity, possibly in densely populated urban areas.”

“Even so-called ‘incident-free’ shipments are like mobile X-ray machines that can’t be turned off, in terms of the hazardous emissions of gamma and neutron radiation, dosing innocent passersby, as well as transport workers," Kamps added.

Kamps’ February 24 letter to U.S. Transportation Secretary Pete Buttigieg, cc'd to governors and state Attorneys General across the U.S., warned of the dangers of transporting high-level radioactive waste. "The recent train wreck at East Palestine, Ohio demonstrates the urgency of the problem and the potential for a serious radiological accident from nuclear waste transport," he wrote. "Environmental toxicologists have expressed deep concern that detection and response to release of hazardous chemicals in East Palestine were ineffective and untransparent and failed to protect public health and safety. But if the train that derailed had been carrying SNF or other highly radioactive wastes, the consequences would have been much worse."

The Nuclear Waste Technical Review Board has recommended spending a minimum of a decade to develop better irradiated nuclear fuel cask and canister designs before attempting to transport highly radioactive wastes. Yet Holtec and ISP expect their nuclear waste CISFs to open and start accepting shipments in just the next few years. 

State Laws Could Block CISF Projects

Multiple lawsuits in federal appeals courts and state laws opposing storage and disposal of irradiated nuclear fuel in both New Mexico and Texas could upend both nuclear waste CISF schemes.

Siting nuclear facilities is supposed to be consent-based, but both Texas and New Mexico have made it abundantly clear they do not consent.  In advance of the NRC licensing the ISP facility in September 2021, the Texas legislature overwhelmingly approved a bill banning storage or disposal of high-level radioactive waste including SNF in the state, and directing the Texas Commission on Environmental Quality to deny state permits the ISP project needs. The measure passed the Texas Senate unanimously, and passed the Texas House 119-3. Texas Governor Greg Abbott then signed the bill into law.

"This kind of bipartisan vote is very rare", said Karen Hadden, Executive Director of the Sustainable Energy and Economic Development (SEED) Coalition based in Austin, TX. "The message should be loud and clear: Texas doesn't want the nation's deadliest nuclear waste and does not consent to being a dumping ground." 

In the runup to the Legislature passing the law, opposition to the ISP project in Texas was widespread and vocal. Abbott and a bipartisan group of U.S. Congressional Representatives from Texas wrote strong letters to the NRC opposing the project. Andrews County, five other counties and three cities, representing a total of 5.4 million

Texans, passed resolutions opposing importing nuclear waste from other states to Texas. School districts, the Midland Chamber of Commerce and oil and gas companies joined environmental and faith-based groups in opposing the ISP project. The City of Fort Worth, Texas submitted a Friend of the Court brief supporting appeals against ISP in the U.S. Court of Appeals for the District of Columbia Circuit.

Strenuous opposition to nuclear waste CISFs is also widespread in New Mexico. The state recently enacted Senate Bill 53 (SB53) barring storage and disposal of highly radioactive wastes in New Mexico without its explicit consent. New Mexico Governor Michelle Lujan Grisham signed SB53 into law on March 17, 2023,  immediately after it had passed both houses of the State Legislature.  Grisham has strongly objected to both nuclear waste CISFs on either side of New Mexico’s southeastern border since before she became governor in 2019.



“I am thankful that the New Mexico Legislature voted to stop this dangerous nuclear waste from coming to our state, and for Governor Grisham for signing it into law,” said Rose Gardner of Eunice, New Mexico, co-founder of the environmental justice watchdog group Alliance for Environmental Strategies. Gardner’s hometown is very close to the ISP project site in Texas, as well as to the Waste Control Specialists, LLC (WCS) national dump for hazardous and so-called “low-level” radioactive waste. Every single one of thousands of rail shipments of highly radioactive waste bound for the ISP CISF would pass through Eunice. 

“I live less than five miles from the ISP site, yet my community in New Mexico has had no vote and no choice, and gave no consent for nuclear waste to be stored at the facility,” she said. “I have long been concerned about WCS and its voracious appetite for bringing more and more nuclear waste to my area, claiming it now needs a license for high-level radioactive waste because the waste disposal business wasn't making enough money.  I hope my concerns will be heard by a higher court than the NRC."

Gardner has served as a standing declarant in legal challenges to both the Holtec and the ISP CISFs in federal court.

Lawsuits Argue CISFs Violate Federal Law 

Two sets of lawsuits seek to block the ISP project in Texas and the Holtec project in New Mexico on the grounds that they violate federal law. They have been pending before the U.S. Court of Appeals for the District of Columbia Circuit for years. 

In January 2023, the court rejected all opponents’ appeals against the Interim Storage Partners nuclear waste CISF in Texas. However, a separate federal court, the 5th Circuit Court of Appeals in New Orleans, is still considering appeals against the ISP CISF from the State of Texas, as well as from Fasken Land and Minerals, LLC/Permian Basin Land and Royalty Owners. 

After being held in abeyance for several years, now that NRC has approved the license for the Holtec nuclear waste CISF in New Mexico, federal appeals against it are likely to move forward.  The briefing phase of the D.C. Court of Appeals lawsuit is expected to resume soon, and other federal appeals are also ripe for judicial consideration in the 5th and 10th (Denver) circuits, pending final agency action.

These lawsuits argue that nuclear waste CISFs violate federal law. Consolidated interim storage facilities are predicated on the assumption that the U.S. Department of Energy (DOE) will enable SNF transportation by taking title to commercial reactor waste as it leaves the reactor sites, thus relieving the licensees of their liability for it. But transferring responsibility for highly radioactive nuclear waste from private businesses to the federal government is specifically prohibited by the Nuclear Waste Policy Act of 1982, as Amended (NWPA) -- unless and until a geologic repository is open and operating.  By DOE’s own admission, an operating geologic repository remains at least 25 years away. 

The prohibition against DOE taking title to commercial reactor waste was included in the NWPA precisely to guard against “interim” storage sites becoming de facto permanent surface dumps for nuclear waste. But the Nuclear Regulatory Commission’s CISF licensing process was pushed ahead anyway in defiance of the law, on the theory the law will be changed by Congress and the President. 

Former New Mexico U.S. Senator Jeff Bingaman, who chaired the Energy and Natural Resources Committee, was adamant that this “linkage” between any “interim” site to an operating final repository remain in the law.



“The NRC never should have even considered these applications, because they blatantly violate the federal Nuclear Waste Policy Act by assuming that the federal government will take responsibility for the waste before a permanent repository is licensed and operating,” said Diane Curran, an attorney for Beyond Nuclear, one of the groups that brought the suits.

”Licensing the ISP and Holtec facilities would defeat Congress’s purpose of ensuring that nuclear waste generated by U.S. reactors will go to a deep geologic repository, rather than to vulnerable surface facilities that may become permanent nuclear waste dumps,” Curran added.



Participants in the legal challenge to the Holtec CISF include the Non-Governmental Organizations (NGOs) Beyond Nuclear, Sierra Club, and Don't Waste Michigan, et al., a national grassroots coalition of watchdog groups, including the New Mexico-based anti-nuclear collective formerly called Nuclear Issues Study Group (recently renamed DNA, short for Demand Nuclear Abolition). Additional coalition members include: Citizens for Alternatives to Chemical Contamination (MI); Citizens’ Environmental Coalition (NY); Nuclear Energy Information Service (IL); and San Luis Obispo Mothers for Peace (CA). Federal appeals before the D.C. circuit court have also been filed by

Fasken Land and Minerals, Ltd., and Permian Basin Land and Royalty Owners, which advocate for ranching and mineral rights.



"The grand illusion that the nuclear power industry will figure out what to do with the lethal nuclear waste later, is now revealed,” said Michael J. Keegan of Don't Waste Michigan, one of the lead intervenors in the lawsuits. “There is nowhere to put the waste. No community consents to accept nuclear waste -- not Texas, not New Mexico, not Michigan, or anywhere on this planet.  We have to stop making it. No more weapons of mass deception!" 

 

NRC Issues License to Holtec International for Consolidated Spent Nuclear Fuel Interim Storage Facility in New Mexico

Nuclear Regulatory Commission - News Release
No: 23-031 May 9, 2023
CONTACT: David McIntyre, 301-415-8200

NRC Issues License to Holtec International for Consolidated Spent Nuclear Fuel Interim Storage Facility in New Mexico

The Nuclear Regulatory Commission has issued a license to Holtec International to construct and operate a consolidated interim storage facility for spent nuclear fuel in Lea County, New Mexico.

The license, issued May 9, authorizes the company to receive, possess, transfer and store 500 canisters holding approximately 8,680 metric tons of commercial spent nuclear fuel for 40 years. The company said it plans to eventually store up to 10,000 canisters in an additional
19 phases. Each expansion phase would require a license amendment with additional NRC safety and environmental reviews.

The spent fuel must be stored in canisters and cask systems certified by the NRC as meeting standards for protection against leakage, radiation dose rates, and criticality under normal and accident conditions. The canisters are required to be sealed prior to arrival at the facility. They will be inspected upon arrival and will remain sealed during onsite handling and storage activities.

The NRC’s review of the license application included a technical safety and security review, an environmental impact review and adjudication before an Atomic Safety and Licensing Board. A safety evaluation report, documenting the technical review, is being issued along with the license. A final environmental impact statement was published last July and supplemented in October. The environmental study included extensive public input during its development and during the comment phase. The adjudication resolved contentions filed by several local and national petitioners.

Information about the Holtec application and the NRC’s review is available on the NRC website. Licensing documents will also be posted on this site.

The NRC has previously issued similar licenses for away-from-reactor storage installations. Private Fuel Storage received a license in 2006, but was never constructed. The NRC issued a license in September 2021 to Interim Storage Partners LLC for a proposed storage site in Andrews, Texas. ISP has not yet initiated construction.

Constellation CEO: Nuclear PTC Could Extend Reactors’ Life to 80 Years

Constellation CEO: Nuclear PTC Could Extend Reactors’ Life to 80 Years

Company to Invest $900M in Producing Clean Hydrogen at Nuclear Plants

May 8, 2023

Constellation says the IRA's tax credits for nuclear could boost its profits by $100 million per year and help extend the life of its reactors to 80 years.

Monday, May 8, 2023

NRC Begins Special Inspection at Urenco USA Facility

Nuclear Regulatory Commission - News Release
No: II-23-014 May 8, 2023
Contact: Dave Gasperson, 404-997-4417

NRC Begins Special Inspection at Urenco USA Facility

The Nuclear Regulatory Commission has launched a special inspection at the Urenco USA uranium enrichment facility in Eunice, New Mexico. The inspection follows an April 21 incident involving the operation of a crane near a building that handles uranium hexafluoride without the required safety controls present.

The facility is safe, but the event raises concerns about safety protocols at the site and warrants additional NRC inspection as it involves a breakdown of controls designed to prevent chemical, radiological, and criticality hazards – the primary concern at U.S. fuel cycle facilities. Two similar events occurred in 2022, prompting the NRC to propose Urenco USA receive a $70,000 civil penalty earlier this month.

The inspection began today and inspectors from the NRC’s Region II office in Atlanta are at the Urenco USA plant. Over several days, the inspectors will assess the effectiveness of previous corrective actions taken by the facility to implement safety controls during construction activities and evaluate the appropriateness of the company's overall response.

“The recurrence of safety incidents at the Urenco USA fuel fabrication facility is concerning, and we expect all our license holders to prioritize safety, strictly adhere to the highest standards, and take prompt action to correct deficiencies,” said NRC Region II Administrator Laura Dudes. “We're committed to holding all NRC license holders accountable and taking appropriate action to protect public health and safety.”

The inspection team will document their findings and conclusions in a public report typically issued within 45 days of the completion of the inspection.

We need more honesty on nuclear power’s long legacy of hazardous waste | Nuclear power | The Guardian

We need more honesty on nuclear power’s long legacy of hazardous waste

Tom Smith, William Walker and Neil Smith respond to Samanth Subramanian’s long read on the enormous task of dismantling Sellafield
Thu 22 Dec 2022 12.15 EST


The industry’s solution to this is a network of deep disposal facilities. But none have yet been created, their cost is enormous and there is no certainty that they will perform the long-term task required of them. These are considerations that sadly receive little attention in current debates about the need for new nuclear-generation capacity.

Coincidentally, you published a letter (14 December) suggesting that nuclear radiation is less dangerous than emissions from a wood-burning stove, a curious comparison to make. Wood-burning stoves are pollutants, no question, but they could never lead to a Windscale, Three Mile Island, Chornobyl or Fukushima. Nor will decommissioning them cost billions and take decades.
Tom Smith
Chair, Nuclear Decommissioning Authority, 2017-20

► In 1993, a government official told me that “it was sometimes right to do the wrong thing”. For reasons of political expediency, it was right to give political consent for the operation of the thermal oxide reprocessing plant (Thorp) at Sellafield. This huge facility, not mentioned in Samanth Subramanian’s fine long read, had been built over the previous decade to reprocess British and foreign, especially Japanese, spent nuclear fuels. Abandoning it would be too embarrassing for the many politicians and their parties that had backed it, expensive in terms of compensation for broken contracts, and damaging to Britain’s and the nuclear industry’s international reputation.

It was wrong to proceed, as the government well knew, because the primary justification for its construction – supply of plutonium for fast breeder reactors (FBRs) – had been swept away by the abandonment of FBRs in the 1980s (none were built anywhere). Because returning Thorp’s separated plutonium and radwaste to Japan would be difficult and risky. Because decommissioning Thorp would become much more costly after its radioactive contamination. Because there was a known win-win solution, favoured by most utilities – store the spent fuel safely at Sellafield prior to its return to senders, avoiding the many troubles that lay ahead.

Thorp operated fitfully until its closure in 2018. The 30 tonnes of plutonium that it separated remains at Sellafield – another waste to trouble generations to come.
William Walker
Edinburgh

► Anton van der Merwe makes the compelling point that lack of investment in nuclear power over the last 40 years has had a disastrous impact on carbon emissions and therefore has exacerbated the climate emergency (Letters, 14 December). However, in the same issue, the long read discusses plans for new nuclear without mentioning the huge beneficial impact that low-carbon nuclear will need to have if we are to avoid climate catastrophe. The report by the Intergovernmental Panel on Climate Change on 1.5C temperature rises published in 2018 presented mitigation scenarios in which nuclear generation would grow on average 2.5 times from today’s level by 2050. Without this, the chances of meeting climate targets are much reduced.
Neil Smith
Solihull, West Midlands

Notice of Public Meeting on June 7, 2023 - Annual Assessment Meeting (Webinar) for PA/MD/NY/NJ Nuclear Power Plants (Beaver Valley, Calvert Cliffs, Hope Creek, Fitzpatrick, Limerick, Nine Mile Point, Peach Bottom, R.E. Ginna, Salem, and Susquehanna)

Notice of Public Meeting on June 7, 2023 - Annual Assessment Meeting (Webinar) for PA/MD/NY/NJ Nuclear Power Plants (Beaver Valley, Calvert Cliffs, Hope Creek, Fitzpatrick, Limerick, Nine Mile Point, Peach Bottom, R.E. Ginna, Salem, and Susquehanna)

ADAMS Accession No.  ML23124A107

Wednesday, May 3, 2023

NRC-2018-0296-0017: Comments of Nuclear Information and Resource Service, et al

Dear Nuclear Regulatory Commission:

Please accept the comments attached in response to the above referenced proceeding, published in the Federal Register on March 3, 2023 (Renewing Nuclear Power Plant Operating Licenses-Environmental Review), submitted on behalf of Nuclear Information and Resource Service, Alliance for a Green Economy, Citizens Resistance at Fermi Two, Connecticut Coalition Against Millstone, EFMR Monitoring Group at Three Mile Island, Physicians for Social Responsibility Wisconsin, and Seacoast Anti-Pollution League.
 
Sincerely,
Timothy Judson (he/him)
 
Executive Director
Nuclear Information and Resource Service
(6930 Carroll Ave., Suite 340, Takoma Park, MD, 20912)
301-270-6477



Tuesday, May 2, 2023

NRC Initiates Special Inspection at Calvert Cliffs Unit 1 Nuclear Power Plant

Nuclear Regulatory Commission - News Release
No: I-23-003 May 1, 2023
CONTACT: Diane Screnci, 610-337-5330
Neil Sheehan, 610-337-5331

NRC Initiates Special Inspection at Calvert Cliffs Unit 1 Nuclear Power Plant

The Nuclear Regulatory Commission has begun a Special Inspection at the Calvert Cliffs Unit 1 nuclear power plant to review issues associated with an emergency diesel generator at the facility. The twin-engine generator malfunctioned during recent testing and was the subject of an NRC enforcement action last year.

A three-member team arrived at the Lusby, Maryland, plant on May 1 to begin the inspection. The team will be supplemented by the NRC resident inspectors assigned to Calvert Cliffs, who have been following plant owner Constellation Energy’s actions on-site since the mechanical failure of the generator on April 24.

The NRC inspection team will gather key information regarding the problems involving the generator and will seek to better understand plant operators’ response. The team will document its findings in an inspection report to be issued within 45 days following the conclusion of the review.

“Because of redundant systems, this event did not directly impact plant safety,” NRC Region I Administrator Raymond Lorson said. “Nevertheless, our team has been tasked with learning more about why this problem occurred and what steps the company is taking to ensure it does not happen again.”

Operators have determined that the plant’s other emergency diesel generators are unlikely to have similar problems, but NRC inspectors are reviewing that assessment as part of this review.

Emergency diesel generators are considered a key safety component at nuclear power plants. In the event off-site power becomes unavailable, plants use the emergency diesel generators and battery systems to operate safety systems until it is restored.

Last September, the NRC finalized a “white,” or of low to moderate safety significance, inspection finding for Calvert Cliffs based on a problem involving the same emergency diesel generator. In that case, operators failed to prevent the introduction of foreign material into the generator, resulting in its automatic shutdown and failure during routine testing.