K-25 Archives - Oak Ridge Today

Learn about K-25 history with park ranger Saturday

Posted at 8:53 pm June 14, 2024
By John Huotari Leave a Comment

*K-25 (Image credit: U.S. Department of Energy/Ed Westcott)*

You can get an introduction to the history of the K-25 plant, which once had the world’s largest building, with a National Park Service ranger on Saturday.

K-25 was built as part of the top-secret Manhattan Project during World War II. That was a federal program to build the world’s first atomic bomb, before Germany could.

Saturday’s talk is titled “K-25: Enriching Uranium in Happy Valley.” It is scheduled to start at 11 a.m. at the K-25 Overlook across from the K-25 site, which is now known as Heritage Center or East Tennessee Technology Park. The talk is free, and it is expected to last about one hour.

[Read more…]

K-25 cleanup shifting to groundwater

Posted at 5:10 pm May 29, 2024
By John Huotari Leave a Comment

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.

[Read more…]

K-25 site has first reunion

Posted at 3:18 am May 22, 2024
By Oak Ridge Today Staff Leave a Comment

Jim Young was the oldest retiree in attendance at the recent K-25 site reunion. The 101-year-old started working at the K-25 site as a security guard in May 1944. (Photo courtesy U.S. Department of Energy Oak Ridge Office of Environmental Management)

From “EM Update” newsletter

Long vacant parking lots at the former K-25 site at Oak Ridge were full again on a recent Saturday afternoon as retired employees gathered for a first-ever reunion.

“There are some folks here that I have not seen since I retired,” said Bob Merriman, who began working at the K-25 site in 1963. “It’s amazing to be able to visit with them and to see them still doing well.”

What started as a plan to host a small picnic quickly turned into much more.

“I said we’ll have it down here at Turtle Park in Oak Ridge, but I think I’m going to open it up to all K-25 workers,” said Pam Toon, an event organizer who started work at the site in 1987. “When I did, massive amounts of people signed up.”

[Read more…]

DOE asks for public comment about ETTP groundwater decision

Posted at 1:00 pm April 23, 2023
By John Huotari Leave a Comment

The U.S. Department of Energy has asked for public comment about a proposed plan to reduce groundwater contamination in the main plant area of East Tennessee Technology Park, the former K-25 site in west Oak Ridge.

Comments are for an interim record of decision. There will be a public meeting Tuesday evening in Oak Ridge.

“The proposed plan identifies enhanced in situ bioremediation (EISB) as DOEâ€™s preferred alternative to remediate six specific areas of groundwater in the main plant area of the East Tennessee Technology Park,” DOE said in a public notice distributed by the Tennessee Department of Environment and Conservation. “EISB is a method that involves using microorganisms to reduce contamination levels in these specific areas of groundwater. For these six areas, workers have excavated, or will excavate, the primary sources of contamination, as specified in the Record of Decision for Soil, Buried Waste, and Subsurface Structure Actions in Zone 2, East Tennessee Technology Park, Oak Ridge, Tennessee (DOE/OR/01-2161&D2).

[Read more…]

Railroad could jeopardize airport

Posted at 10:12 pm January 18, 2023
By John Huotari Leave a Comment

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.

The rest of this story is available if you are a member: a subscriber, advertiser, or contributor to Oak Ridge Today.

Already a member? Great! Thank you! Sign in here.

Not a member? No problem! Subscribe here:

Basic

Pro

Temporary

Temporary access ($3 per week for two weeks)

If you prefer to send a check, you may do so by mailing one to:

Oak Ridge Today
P.O. Box 6064
Oak Ridge, TN 37831

We also haveÂ advanced subscription options. You can see themÂ here.

We also acceptÂ donations. You can donateÂ here. A donation of $50 or more will make you eligible for a subscription.

Thank you for reading Oak Ridge Today. We appreciate your support!

Disposing of uranium waste could cost at least $7.2 billion

Posted at 10:10 am July 31, 2022
By John Huotari Leave a Comment

Depleted uranium hexafluoride storage cylinders at the U.S. Department of Energy’s Portsmouth, Ohio, Conversion Facility. (Photo from U.S. Government Accountability Office report)

The U.S. Department of Energy estimates it could cost at least $7.2 billion to convert and dispose of tens of thousands of cylinders of depleted uranium hexafluoride, a dangerous, corrosive waste byproduct of the uranium enrichment process. Some of the waste came from the former K-25 site in Oak Ridge and is now stored in Ohio, but a portion of the converted depleted uranium could eventually be returned to Oak Ridge for use in nuclear weapons.

The rest of this story is available if you are a member: a subscriber, advertiser, or contributor to Oak Ridge Today.

Already a member? Great! Thank you! Sign in here.

Not a member? No problem! Subscribe here:

Basic

Pro

Temporary

Temporary access ($3 per week for two weeks)

If you prefer to send a check, you may do so by mailing one to:

Oak Ridge Today
P.O. Box 6064
Oak Ridge, TN 37831

We also haveÂ advanced subscription options. You can see themÂ here.

We also acceptÂ donations. You can donateÂ here. A donation of $50 or more will make you eligible for a subscription.

Thank you for reading Oak Ridge Today. We appreciate your support!

*Depleted uranium hexafluoride storage cylinders at the U.S. Department of Energy’s Portsmouth, Ohio, Conversion Facility. (Photo from U.S. Government Accountability Office report)*

DOE’s Office of Environmental Management has had about 67,000 cylinders of the depleted uranium hexafluoride (DUF6) stored at two conversion facilities in Paducah, Kentucky, and Portsmouth, Ohio. The facilities convert the DUF6 into two primary products, depleted uranium oxide (a more stable chemical form) and hydrofluoric acid, according to a report by the U.S. Government Accountability Office.

Depleted uranium hexafluoride storage cylinders at the U.S. Department of Energy’s Portsmouth, Ohio, Conversion Facility. (Photo from U.S. Government Accountability Office report)

The rest of this story is available if you are a member: a subscriber, advertiser, or contributor to Oak Ridge Today.

Already a member? Great! Thank you! Sign in here.

Not a member? No problem! Subscribe here:

Basic

Pro

Temporary

Temporary access ($3 per week for two weeks)

If you prefer to send a check, you may do so by mailing one to:

Oak Ridge Today
P.O. Box 6064
Oak Ridge, TN 37831

We also haveÂ advanced subscription options. You can see themÂ here.

We also acceptÂ donations. You can donateÂ here. A donation of $50 or more will make you eligible for a subscription.

Thank you for reading Oak Ridge Today. We appreciate your support!

An outside view showing the K-25 History Center, Equipment Building, and Viewing Tower at East Tennessee Technology Park in west Oak Ridge. (Image courtesy U.S. Department of Energy)

An image published in October 2017 shows the K-25 History Center, Equipment Building, and Viewing Tower at East Tennessee Technology Park in west Oak Ridge. It wasn’t immediately clear Friday evening, Jan. 11, 2019, if the design has changed. (Image courtesy U.S. Department of Energy)

The design is complete and funding is available for the construction of an Equipment Building and Viewing Tower that will help commemorate the history of the K-25 Building, once the world’s largest building under one roof.

K-25 was built in Oak Ridge during World War II to help enrich uranium for the Manhattan Project. That was a top-secret federal program to build the world’s first atomic weapons. During the war, Oak Ridge enriched the uranium for “Little Boy,” the first atomic bomb used in wartime. “Little Boy” was detonated over Hiroshima, Japan, on August 6, 1945, shortly before the end of World War II.

After the war, the four-story, 44-acre K-25 Building and four other large buildings at the K-25 site continued to use a process known as gaseous diffusion to enrich uranium for atomic weapons and commercial nuclear power plants. Officials say the K-25 site, which is in west Oak Ridge, helped win the Cold War.

After decades of use, the K-25 site was shut down in the mid-1980s, and as part of a cleanup effort in recent years, the five large gaseous diffusion buildings have been demolished. But the history of the K-25 building and the site will live on in a History Center on the second floor of Oak Ridge Fire Station Number 4, which is next to K-25’s concrete slab, and at the Equipment Building and Viewing Tower, which will be just west of the History Center.

The History Center, Equipment Building, and Viewing Tower will be on the south side of the former K-25 Building. The site is now known as Heritage Center or East Tennessee Technology Park. [Read more…]