Oak Ridge Today

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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Crews clean up demolished ORNL reactor

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An aerial view of the site of the Low Intensity Test Reactor after U.S. Department of Energy Office of Environmental Management crews demolished it. Crews have since shipped the reactor vessel and backfilled the pit where the facility had stood. (Photo courtesy UCOR/DOE Oak Ridge Office of Environmental Management)

Workers have finished cleaning up after demolishing the Low Intensity Test Reactor at Oak Ridge National Laboratory.

The work was done by cleanup contractor UCOR for the U.S. Department of Energy Office of Environmental Management.

Workers finished the tearing down the Low Intensity Test Reactor and disposing rubble and debris last fall, achieving a federal environmental management priority that year, according to the U.S. Department of Energy Office of Environmental Management.

“However, the reactor vessel remained on the building’s footprint until it could be shipped for final disposition offsite,” DOE said in its “EM Update” newsletter.

[Read more…]

Almost two miles of pipes replaced at waste treatment systems

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Oak Ridge crews installed approximately 5,500 feet of new piping as part of a project at the Liquid and Gaseous Waste Operations system. The work required 5,000 hours of welding to complete the nearly two miles of welded lines. (Photo courtesy U.S. Department of Energy Oak Ridge Office of Environmental Management/UCOR)

Close to two miles of pipes were replaced at waste treatment systems at Oak Ridge National Laboratory.

The two-year, $18 million project was completed three months ahead of schedule and $900,000 under budget, according to federal officials. The project replaced above-ground pipes and valves at the 3608 Process Waste Treatment Complex, “making the system more efficient and reliable and helping avoid the possibility of disrupting ongoing ORNL operations,” federal officials said.

The piping replacement was a project of the U.S. Department of Energy’s Oak Ridge Office of Environmental Management and its contractor UCOR. The goal was to extend the life of the Liquid and Gaseous Waste Operations (LGWO) system at ORNL. DOE said the LGWO system is critical to ORNL’s ongoing missions, and an outage would result in immediate impacts at the site.

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Crews prepare to demolish Graphite Reactor support facilities

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An aerial view of a filter house, fan house, and 200-foot-tall exhaust stack that provided support to the Graphite Reactor, which is located about 100 feet away from these facilities. (Photo courtesy U.S. Department of Energy Office of Environmental Management)

Federal cleanup crews are preparing to demolish three support facilities for the historic Graphite Reactor at Oak Ridge National Laboratory.

The demolition of the support facilities is planned for next year.

The deactivation work at the three facilities is being done by UCOR, a cleanup contractor for the U.S. Department of Energy’s Oak Ridge Office of Environmental Management.

The buildings include the filter house, or Building 3002; fan house, or Building 3003; and exhaust stack, or Building 3018. They were previously used to filter and release exhaust from Graphite Reactor operations.

[Read more…]

Final drums of old transuranic waste from ORNL prepared for disposal

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An aerial view of the Transuranic Waste Processing Center in Oak Ridge, where the final drums of legacy transuranic waste stored at Oak Ridge National Laboratory will be processed before shipment to the Waste Isolation Pilot Plant in New Mexico for permanent disposal. (Photo courtesy U.S. Department of Energy Office of Environmental Management)

An aerial view of the Transuranic Waste Processing Center in west Oak Ridge, where the final drums of legacy transuranic waste stored at Oak Ridge National Laboratory will be processed before shipment to the Waste Isolation Pilot Plant in New Mexico for permanent disposal. (Photo courtesy U.S. Department of Energy Office of Environmental Management)

 

The final drums of old transuranic waste stored at Oak Ridge National Laboratory have been prepared for disposal.

The U.S. Department of Energy’s Oak Ridge Office of Environmental Management reported Tuesday that it had recently completed installing vents and sample ports in the final drums of the legacy transuranic waste stored at ORNL. The decade-long effort ensures that the drums do not contain any hazardous gases that could cause rapid combustion.

The ventilated unit where the drums were vented is closed and explosion-proof, DOE said. It is capable of withstanding a combustion event while keeping workers and ORNL, the nation’s largest multi-program national laboratory, safe, DOE said.

“Venting and sampling these drums is an essential part of the waste disposal process,” ORNL Portfolio Federal Project Director Bill McMillan said. “Now that we can ensure the safety of each drum, they are ready for transport to the Transuranic Waste Processing Center for processing and subsequent shipment to a permanent disposal facility away from Oak Ridge.” [Read more…]

For first time in 30 years, Savannah River dissolving spent nuclear fuel from ORNL reactor

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The reactor pool is pictured above in the reactor bay inside the High Flux Isotope Reactor at Oak Ridge National Laboratory on Thursday, March 15, 2018. Spent nuclear fuel is stored inside the pool. (Photo by John Huotari/Oak Ridge Today)

The reactor pool is pictured above in the reactor bay inside the High Flux Isotope Reactor at Oak Ridge National Laboratory on Thursday, March 15, 2018. Spent nuclear fuel is stored inside the pool. (Photo by John Huotari/Oak Ridge Today)

 

For the first time in 30 years, spent nuclear fuel from the High Flux Isotope Reactor at Oak Ridge National Laboratory has been dissolved at the Savannah River Site in South Carolina.

The work is important because it is expected to allow the reactor, known as HFIR, to continue its mission, according to the U.S. Department of Energy Office of Environmental Management.

HFIR, which uses highly enriched uranium, is one of the world’s most powerful nuclear research reactor facilities. It’s the highest flux reactor-based source of neutrons for research in the United States. Flux refers to the rate of flow of fluids, particles, or energy. In HFIR’s case, the flux is measured in neutrons per square centimeter per second. HFIR is used for neutron scattering and isotope production, among other missions.

ORNL will reach its maximum capacity for storing HFIR fuel in fiscal year 2020, the DOE Office of Environmental Management, or EM, said in an “EM Update” electronic newsletter on Tuesday. [Read more…]

New Oak Ridge EM manager Jay Mullis outlines cleanup vision

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Jay Mullis

Jay Mullis

 

Note: This story was published in the November 21 edition of “EM Update” by the U.S. Department of Energy Office of Environmental Management. EM Update recently spoke with Jay Mullis, the new manager of the Oak Ridge Office of Environmental Management (OREM), about his vision and priorities for the EM program in Oak Ridge.

What are your main priorities going forward as the new manager of OREM?

Overall, I want to ensure our program maintains the momentum we’ve achieved during the past several years. First, it is important for us to continue pushing forward to complete cleanup at the East Tennessee Technology Park (ETTP, also known as the former K-25 site) by 2020. This will facilitate the transfer of the site back to the community so it can be transformed into a vibrant industrial park capable of generating jobs and economic growth for the region. It will also allow our program to shift its focus and resources toward cleanup at two important, active DOE sites: the Y-12 National Security Complex and Oak Ridge National Laboratory (ORNL). Before we finish our cleanup mission at ETTP, we must also fulfill our historic preservation commitments to preserve and celebrate the many achievements that occurred there during the Manhattan Project and Cold War. 

Secondly, it is very important that we begin laying the foundation for our next big challenges at Y-12 and ORNL. That began on November 20, when we broke ground on the new Mercury Treatment Facility at Y-12. This critical piece of infrastructure will provide an important control measure for mercury and opens the door for us to clean and remove mercury contaminated facilities and soils. Additionally, it is crucial to construct another onsite disposal facility that will provide the space necessary for the waste generated by completing cleanup at Y-12 and ORNL. 

Finally, we will continue our focus on eliminating Oak Ridge’s waste inventory. We are making progress packaging and disposing transuranic waste from ORNL with the Waste Isolation Pilot Plant again accepting shipments. We are working to eliminate the remaining portion of the uranium-233 inventory from ORNL to improve safety and significantly reduce security costs. [Read more…]

Workers removing asbestos, reducing risks at former ORNL research reactor

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A worker removes asbestos from Building 7500, a former research reactor at Oak Ridge National Laboratory. (Photo courtesy DOE Office of Environmental Management)

A worker removes asbestos from Building 7500, a former research reactor at Oak Ridge National Laboratory. (Photo courtesy DOE Office of Environmental Management)

 

Note: This is an edited version of a story that was first published by the U.S. Department of Energy Office of Environmental Management in an EM Update on Tuesday, Oct. 24.

Workers recently passed the halfway mark removing asbestos from a former research reactor at Oak Ridge National Laboratory as part of an effort to remove risks and prepare excess facilities in Oak Ridge for eventual demolition.

The asbestos abatement could continue until early 2018 inside Building 7500, also known as the Homogenous Reactor Experiment facility at ORNL, according to the U.S. Department of Energy’s Oak Ridge Office of Environmental Management. Crews are pulling out ceiling and floor tile, pipe and vessel insulation, and wall board.

The project further reduces risks after OREM and cleanup contractor URS | CH2M Oak Ridge, or UCOR, cleared all combustible materials and deactivated the heat detection system inside the building earlier this year.

Deactivating the system eliminated the need for personnel to enter the building for periodic inspections, and it allowed for removal of all hazardous energy sources as required before asbestos abatement. [Read more…]

Workers start demolishing Poplar Creek facilities at ETTP

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Workers tear down the K-832 Cooling Water Pumphouse at East Tennessee Technology Park, the former K-25 site in west Oak Ridge. (Photo courtesy U.S. Department of Energy Office of Environmental Management)

Workers tear down the K-832 Cooling Water Pumphouse at East Tennessee Technology Park, the former K-25 site in west Oak Ridge. (Photo courtesy U.S. Department of Energy Office of Environmental Management)

 

Note: This is an edited version of a story that was first published by the U.S. Department of Energy Office of Environmental Management in an EM Update on Friday, July 28.

Workers began demolishing the Poplar Creek facilities this month, bringing Oak Ridge’s environmental management, or EM, program closer to completing major cleanup at the East Tennessee Technology Park by 2020.

“Demolishing the Poplar Creek facilities is significant for our program because it continues the visible transformation of ETTP’s skyline, and it removes the most contaminated facilities remaining at the site,” said Jay Mullis, acting manager of the U.S. Department of Energy’s Oak Ridge Office of Environmental Management, or OREM.

OREM has taken down more than 400 facilities at ETTP, including all five former uranium enrichment facilities. That’s about 10 million square feet of buildings that have been removed.

ETTP, also known as Heritage Center, is the former K-25 site in west Oak Ridge. The site was built to help enrich uranium for atomic bombs during the top-secret Manhattan Project in World War II, and it continued to operate through the Cold War, including to enrich uranium for nuclear power plants. [Read more…]

Two Oak Ridge companies receive small business awards from DOE office

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Buster Bivens and Kaitlyn Weaver of Restoration Services, Inc. (RSI) perform field inspections at a Portsmouth Site process building. DOE recognized RSI with the Small Business of the Year award. (Photo from DOE Office of Environmental Management "EM Update" newsletter)

Buster Bivens and Kaitlyn Weaver of Restoration Services Inc. (RSI) perform field inspections at a Portsmouth Site process building. DOE recognized RSI with the Small Business of the Year award. (Photo from DOE Office of Environmental Management “EM Update” newsletter)

 

Note: This information and photos first appeared in the May 31 edition of the “EM Update” newsletter published by the DOE Office of Environmental Management.

Two Oak Ridge companies involved in federal cleanup work have received small business awards from a U.S. Department of Energy office.

Restoration Services Inc., or RSI, was named the Small Business of the Year during the 16th Annual DOE Small Business Forum and Expo in Kansas City, Missouri, on May 16-18.

Another Oak Ridge business, Scientific Sales Inc., or SSI, was named the 8(a)/Small Disadvantaged Business of the Year.

Awards were presented to a total of five small businesses, including RSI and SSI, during the expo in Kansas City this month. The companies support the U.S. Department of Energy’s environmental management, or EM, work. The awards, which were for fiscal year 2016, were from DOE’s Office of Small and Disadvantaged Business Utilization.

The other three EM-related businesses that received awards were: [Read more…]

DOE: Oak Ridge cleanup prevents large mercury release into environment

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Workers pour mercury from COLEX equipment into a container designed to hold 1,000 pounds of the element. (Photo by U.S. Department of Energy)

Workers pour mercury from COLEX equipment into a container designed to hold 1,000 pounds of the element. (Photo by U.S. Department of Energy)

 

This story and photos were published in the May 17 edition of the EM Update newsletter by the U.S. Department of Energy Office of Environmental Management.

Oak Ridge’s environmental management, or EM, program and contractor URS | CH2M Oak Ridge have prevented more than 1,000 pounds of mercury from entering the environment at the Y-12 National Security Complex.

This work, part of the U.S. Department of Energy’s Excess Contaminated Facilities initiative, enables demolition and disposal of massive mercury-contaminated equipment to begin this month.

Workers are inspecting and cleaning the pipes and column exchange (COLEX) equipment on the west side of Alpha-4 at Y-12. They have tapped and drained approximately 2,100 feet of the 5,700 feet of piping so far, retrieving large amounts of mercury, and more is expected as work continues. EM will address and remove the remaining portions on the facility’s east and south sides in the future.

“This project has proven to be a very successful investment for our program,” said Oak Ridge Office of EM Acting Manager Jay Mullis. “We set out to remove risks and enhance safety through the Excess Contaminated Facilities initiative, and our efforts at Alpha-4 will prevent thousands of pounds of mercury from leaking into the environment.” [Read more…]

UCOR, DOE cleanup contractor in Oak Ridge, earns 94 percent of award fee

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ucor-k-27-building-fall-2016

UCOR workers take down the final portion of Building K-27, achieving Vision 2016, a DOE goal to remove all of the former uranium enrichment buildings at the East Tennessee Technology Park by the end of 2016. K-27 was the fifth and final gaseous diffusion building to be demolished at the site. Successful demolitions of the four other buildings were completed from 2006 to 2015. (U.S. Department of Energy photo)

 

UCOR, the U.S. Department of Energy’s cleanup contractor in Oak Ridge, received about $3.4 million for its performance from April through September 2016, or 94 percent of the total award fee available, federal officials said.

The Oak Ridge Office of Environmental Management, or OREM, recently issued the six-month fee determination scorecard for UCOR, or URS | CH2M Oak Ridge LLC, after completing its evaluation.

“Contractor award fee evaluations determine what will be paid based on performance against stated objectives in accordance with annual award fee plans,” the DOE Office of Environmental Management, or EM, said in the EM Update electronic newsletter on December 29. “EM releases information relating to contractor fee payments to further transparency.”

According to UCOR’s scorecard, the company received an overall rating of “very good” for project management and “high confidence” for cost and schedule based on cost and schedule indexes, the newsletter said. [Read more…]