Oak Ridge Today

Kairos Power begins construction on demonstration reactor​

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Kairos Power has started construction on a test nuclear reactor in west Oak Ridge. The Hermes Low-Power Demonstration Reactor is the first of its type to be approved for construction by the U.S. Nuclear Regulatory Commission and the first non-light-water reactor to be permitted in the U.S. in more than 50 years, a press release said. (Image courtesy Kairos Power)

Kairos Power has started construction on a test nuclear reactor in west Oak Ridge.

The Hermes Low-Power Demonstration Reactor is the first of its type to be approved for construction by the U.S. Nuclear Regulatory Commission and the first non-light-water reactor to be permitted in the U.S. in more than 50 years, a press release said.

The NRC approved a construction permit for the test reactor at Heritage Center industrial park, the former K-25 site, in December.

“Hermes represents a critical milestone on Kairos Power’s iterative path to commercializing advanced reactor technology,” the press release said.

Kairos Power said it has contracted with Barnard Construction Company Inc. to perform sitework and excavation at the Hermes site in Oak Ridge, and that work began earlier this month.

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K-25 cleanup shifting to groundwater

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An aerial view of the East Tennessee Technology Park shows the Main Plant Area left of Poplar Creek and the K-31 and K-33 Area at right. (Photo courtesy U.S. Department of Energy Office of Environmental Management)

Crews are expected to finish remediating soil, reversing or stopping environmental damage at the former K-25 site in west Oak Ridge this year, and federal cleanup managers are shifting their focus to groundwater. It’s the final phase of cleanup at the former uranium enrichment site.

Now also referred to as Heritage Center and East Tennessee Technology Park (ETTP), the K-25 site produced fuel for nuclear weapons and reactors starting in the top-secret Manhattan Project during World War II and continuing through the Cold War. The site has been shut down for almost four decades, and a massive cleanup project has been under way for many years.

The groundwater work can begin with the recent signing of two records of decision between the U.S. Department of Energy’s Oak Ridge Office of Environmental Management, U.S. Environmental Protection Agency, and Tennessee Department of Environment and Conservation. That’s according to “EM Update,” an electronic newsletter published by DOE’s Office of Environmental Management.

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Railroad could jeopardize airport

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If not removed, this section of railroad tracks at Heritage Center, the former K-25 site, would be a “deal-killer” for the proposed Oak Ridge Airport because the runway would be built in this area but could not be with the railroad tracks there. This is looking east across the main entrance to Heritage Center on Wednesday, Jan. 18, 2023. (Photo by John Huotari/Oak Ridge Today)

Railroad tracks at Heritage Center, the former K-25 site, have emerged as a potential “deal-killer” for the proposed Oak Ridge Airport.

On Tuesday, Oak Ridge city leaders said a new company in west Oak Ridge might want to use the rail line to ship materials, but the tracks run through and roughly perpendicular to where the airport runway would be. Officials had expected the rail line, which had been “very inactive,” to be transferred.

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Test reactor would help with decarbonization, supporters say

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Kairos Power has proposed a Hermes test reactor at the Heritage Center, the former K-25 site in west Oak Ridge. A model of the test reactor is pictured at a U.S. Nuclear Regulatory Commission meeting in Oak Ridge on Wednesday, Nov. 16, 2022. (Photo by John Huotari/Oak Ridge Today)

Note: This story was updated at 11:20 a.m. Dec. 1.

A nuclear test reactor proposed in west Oak Ridge could help as the United States tries to lower carbon dioxide emissions and reduce the effects of climate change, supporters said during a public meeting last week.

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CROET president tells Oak Ridge story on national podcast

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Teresa Frady

Teresa Frady, president of the Community Reuse Organization of East Tennessee, is the Spotlight Interview guest on this week’s episode of the Gone Fission Nuclear Report podcast, which covers U.S. Department of Energy environmental management activities around the nation.

Hosted by Michael Butler, the episode is available on all podcast platforms and can be accessed at www.gonefissionpodcast.com, a press release said.

Frady shared with Butler’s listeners CROET’s mission to help DOE transition underused assets such as land, buildingsm and equipment to private sector companies at the East Tennessee Technology Park, also known as the Heritage Center. She recently replaced Lawrence Young, who had served as CROET’s president and chief executive officer since its founding in 1995.

“Our partnership with DOE in transferring federal land helps the region with creation of quality jobs but also adds the property to Roane County and City of Oak Ridge tax rolls,” she said in the press release. “This helps the communities and saves the federal government money since DOE no longer has to maintain those assets.”

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Frady named CROET president, CEO

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Teresa Frady

Teresa Frady has been named president and chief executive officer of the Community Reuse Organization of East Tennessee.

CROET is a regional economic development nonprofit organization that helps find new uses for U.S. Department of Energy facilities and property, including at sites that are no longer used or needed. The goal is to spur private development and create jobs.

Frady’s appointment was announced during the January meeting of the CROET Board of Directors. She replaces Lawrence Young, who is retiring after serving more than 26 years as CROET’s president and CEO.

“I am so pleased that Teresa has accepted the challenge of leading CROET into its next phase,” Young said in a press release. “Teresa has been an integral part of the success of the organization, and I am confident that she, as my successor, will enhance upon the legacy established by the organization’s founders.”

Frady began her career with CROET 22 years ago, the press release said. She has risen through the ranks with increasing responsibility by serving in such roles as account manager, accountant, chief accountant, chief operating officer, and executive director.

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Updated: Former DOE research director, CROET founder dies at 91

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Joe Lenhard, right, is pictured with Oak Ridge Mayor Warren Gooch at the dedication of Main Street Oak Ridge in July 2016. (Photo courtesy Warren Gooch)

Note: This story was last updated at 11:10 a.m. July 19.

Joe Lenhard, a former U.S. Department of Energy research director and founder of the Community Reuse Organization of East Tennessee, died Friday of COVID-19, a family member said. He was 91.

Lenhard died Friday evening at Methodist Medical Center of Oak Ridge, his daughter Andrea Lenhard said in a Facebook post.

My father, Joseph Lenhard, died Friday evening at MMC of Covid. He went quickly. Rest in peace, Daddy. You were always my hero.

Posted by Andie Lenhard on Friday, July 17, 2020

Lenhard was a research director for the U.S. Department of Energy in Oak Ridge. He had oversight of DOE research activities and served as the federal contracting officer for major federal facilities in the city, including Oak Ridge National Laboratory, according to his LinkedIn page. He worked for DOE for about 32 years, from 1957 to 1989.

Lenhard served as president of the Oak Ridge Chamber of Commerce in 1992, and he was chair of the East Tennessee Economic Council in 1993 and 1994.

He helped found CROET in 1994, and he was the founding chairman. CROET helps find ways to re-use former federal property, not just real estate but also equipment and other federal assets. A tribute to Lenhard’s service is noted on a plaque in the Horizon Center Industrial Park in west Oak Ridge.

His daughter Andrea said her father loved the natural world, and she became a biologist and veterinarian because of him. Her father used to take them on long rambles in the woods, Andrea said, and he would pick up animals like snakes and frogs and tell the children what he knew about them.

“He loved nature, and that was very infectious,” she said.

Andrea said Oak Ridge was very important to her father.

“He always wanted to promote Oak Ridge and take care of Oak Ridge,” she said. “He was very devoted to the city.”

Lenhard could often be found walking in local grocery stores. He was very conscious of his health, Andrea said, and he would walk every day at stores that included Walmart, Kroger, and Food City. He would sometimes stop to talk to people, including an Oak Ridge Today reporter.

Andrea said her father was a lot of fun, full of life, and he loved everybody.

She recalled the trips her family used to take to Norris Lake on weekends when she was a child—playing in the water, climbing trees, telling jokes—and she said her father spent as much time as he could with his grandchildren as well.

A statement from the family of Lenhard’s daughter Michele said Joe Lenhard was very supportive of higher education.

“He gave substantial sums of money to the University of Tennessee and Roane State Community College,” the statement said. “Roane State dedicated a room to Joseph Lenhard for his outstanding contributions. Joe came from an economically disproportionate background and saw the benefit of higher education. He wanted to provide educational opportunity for the young people of East Tennessee.”

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Demolition started on centrifuge site, largest remaining complex at ETTP

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Workers have begun taking down the second of four sections of the Centrifuge Complex at East Tennessee Technology Park in Oak Ridge. Completing this project will move the U.S. Department of Energy’s Office of Environmental Management closer to its goal of finishing all major demolitions at ETTP by the end 2020. (Photo courtesy U.S. Department of Energy Office of Environmental Management)

Cleanup crews have started tearing down the largest remaining collection of buildings at the former K-25 site, which was built during World War II and enriched uranium for nuclear weapons and power plants through the Cold War.

The demolition work is occurring at the Centrifuge Complex at the K-25 site, now known as East Tennessee Technology Park or Heritage Center. The Centrifuge Complex is on the south side of ETTP. It includes the tall, white buildings visible from Highway 58.

Oak Ridge crews began demolishing the K-1200 section of the Centrifuge Complex in February. It’s the second of four sections.

Deactivation and demolition work in the first section of the complex was recently completed. That portion was a Manhattan Project facility built for research and development in 1944.

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K-25 History Center to feature exhibits, artifacts, galleries

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K-25 History Center (Photo courtesy U.S. Department of Energy Oak Ridge Office of Environmental Management)


The K-25 History Center in west Oak Ridge will feature exhibits with more than 250 original artifacts and interactive galleries developed with help from almost 1,000 oral histories.

There will be a grand opening and ribbon-cutting ceremony for the K-25 History Center at 10:30 a.m. Thursday, February 27.

“The K-25 History Center was created to honor the amazing stories of the men and women who helped construct and operate the uranium enrichment complex that altered the global landscape during the Manhattan Project and Cold War,” the U.S. Department of Energy said.

The History Center is housed in 7,500 square feet of space on the second floor of the city-owned fire station at the former K-25 site, now known as Heritage Center. It was developed as part of a 2012 agreement that allowed DOE to demolish the North Tower of the former mile-long, U-shaped K-25 Building.

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K-25 History Center has grand opening this month

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The K-25 History Center will have a grand opening ceremony on Thursday, February 27.

The ceremony, which will include a ribbon-cutting, is scheduled for 10:30 a.m. Thursday, February 27, at 652 Enrichment Street in west Oak Ridge.

The K-25 site, now known as Heritage Center, was built during World War II to help enrich uranium for the top-secret Manhattan Project, a federal program to build the world’s first atomic bombs. K-25 helped enrich uranium for “Little Boy,” a nuclear weapon dropped over Hiroshima, Japan, on August 6, 1945, shortly before the end of World War II.

After the war, K-25 enriched uranium for nuclear weapons and commercial nuclear power plants through the Cold War. The site was shut down in the mid-1980s, and it is being cleaned up and converted into a private industrial park. The site’s large uranium enrichment buildings have been demolished and so have many of the support buildings. Most of the cleanup is expected to be completed this year.

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Cirrus Aircraft, Coquí Radio Pharmaceuticals could use Oak Ridge Airport

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This is an aerial image of the current layout plan for the proposed Oak Ridge Airport at the Heritage Center (the former K-25 site) in west Oak Ridge. (Image courtesy Metropolitan Knoxville Airport Authority)

Cirrus Aircraft and Coquí Radio Pharmaceuticals could both use the proposed Oak Ridge Airport, a project consultant said Tuesday.

Oak Ridge Today has previously reported that Coquí Radio Pharmaceuticals Corporation could use the airport, which would have a 5,000-foot runway and be located at Heritage Center, the former K-25 site. Coquí has announced plans to build a $500 million medical isotope production facility at Heritage Center.

The company makes medical isotopes with a half-life of 62 hours, airport project consultant Billy Stair said at an Oak Ridge Chamber of Commerce breakfast on Tuesday. Using the Oak Ridge Airport, rather than spending 42 minutes driving to McGhee Tyson Airport in Blount County, would save Coquí about $2.3 million per year, Stair said. It would also avoid the loss of about 1,000 doses per day of isotopes used for medical treatments, Stair said.

The Federal Aviation Administration conditionally approved the Oak Ridge Airport in March. That was a very significant step after four years of work, Stair said. The master plan has been approved; the precise location of the runway has been set; and a model of likely traffic has been developed.

As part of the conditional approval, the FAA wants an environmental assessment and a benefit-cost analysis.

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Y-12 supporting work to make most widely used medical isotope

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Pictured above is a rendering of the proposed Coquí Radio Pharmaceuticals Corporation medical isotope production facility at the Heritage Center in west Oak Ridge. (Image courtesy Coquí)

Note: This story was updated at 5:30 p.m.

The Y-12 National Security Complex in Oak Ridge is supporting a program to make an isotope used in more than 40,000 medical procedures across the nation each day. The goal is to produce the isotope, molybdenum-99 (Mo-99), in the United States without using highly enriched uranium.

Some of that work could occur in Oak Ridge. A company called Coquí Radio Pharmaceuticals Corporation announced in April that it plans to build a $500 million medical isotope production facility at the Heritage Center in west Oak Ridge. Coquí’s facility would make medical isotopes, primarily Mo-99, and the company could start production in 2025.

In a video posted online, Y-12 said some of its researchers have extensive knowledge of Mo-99 and are sharing that information with Coquí and other companies hoping to produce the isotope.

Y-12 has been involved with Mo-99 since 2009, said Cole Jackson of Y-12 Global Security and Strategic Partnerships.

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