Oak Ridge Today

Construction on Y-12 mercury treatment plant could start in 2018, cost $146 million

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Y-12 Process Buildings and Mercury Use Area

Note: This story was last updated at 3:30 p.m.

Construction on a mercury treatment plant at the Y-12 National Security Complex could start in 2018 and cost $146 million, a federal official said Wednesday.

The plant would treat mercury contamination that originates in the West End Mercury Area at Y-12, flows through storm drains, and enters Upper East Fork Poplar Creek at a point known as Outfall 200. East Fork Poplar Creek flows through Oak Ridge.

The U.S. Department of Energy has evaluated several alternatives for treating the mercury, including doing nothing. But DOE prefers an option that would treat 3,000 gallons of contaminated water per minute and store two million gallons of stormwater. It could reduce the flow of mercury, a toxic metal, by an estimated 84 percent. [Read more…]

Federal spending bill includes money for Y-12 water plant, reduces UPF spending

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Y-12 Water Treatment Plant Announcement

In May 2013, state and federal officials announce a plant to treat mercury-contaminated water at the Y-12 National Security Complex. Pictured from left are Mark Whitney, Robert Martineau, Lamar Alexander, Dave Huizenga, and Stan Meiburg.

The $1 trillion federal spending bill passed by Congress last week provides money for a water treatment plant that would help reduce mercury contamination in Oak Ridge, and it includes less money for the Uranium Processing Facility than President Obama had requested, Sen. Lamar Alexander said Thursday.

The U.S. Senate approved the spending bill in a 72-26 vote after the House passed it 359-67. Alexander and Rep. Chuck Fleischmann voted for it, while Sen. Bob Corker voted against it. All are Tennessee Republicans, and Fleischmann’s district includes Oak Ridge.

Alexander said the spending bill provides $16 million less than Obama had requested in his budget for the UPF, a multi-billion-dollar building that would replace old buildings at the Y-12 National Security Complex as part of a years-long effort to update the 811-acre site, consolidate operations, and cut the plant’s high-security “footprint” from 150 acres to 15. [Read more…]

‘Diligent’ engineer discovers Y-12 water line break that spilled six million gallons

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East Fork Poplar Creek

East Fork Poplar Creek starts at a spring at the Y-12 National Security Complex and flows through Oak Ridge. About six million gallons of water spilled into it in early June, killing several thousand small fish, after a 10-inch water line ruptured at Y-12.

The break in a 10-inch water pipe at the Y-12 National Security Complex on a Friday night in June—it spilled about six million gallons of water and killed several thousand small fish—was discovered by a diligent engineer who had returned to the plant to check on an abnormal water tower report, officials said.

The Defense Nuclear Facilities Safety Board reported that the plant contractor’s utilities and environmental compliance organizations both had had indications of an abnormal condition, but B&W Y-12 had not established a procedure to respond to the signals.

“The break was discovered because a diligent system engineer decided to come back in to the site and check on an anomalous report of a low level in a water tower that had cleared as the pumps refilled the tank,” the DNFSB report said. “B&W management is evaluating ways to improve recognition of a problem from the available indications during off hours.” [Read more…]

Water line rupture at Y-12 kills small fish, salamanders

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East Fork Poplar Creek

East Fork Poplar Creek starts at a spring at the Y-12 National Security Complex and flows through Oak Ridge. It has been listed on a state list of impaired waterways due to mercury and polychlorinated biphenyls, among other things.

About six million gallons of chlorinated water spilled into East Fork Poplar Creek from a ruptured drinking water line at the Y-12 National Security Complex, and an estimated 8,500 minnow-sized fish and almost 30 salamanders were killed in the area of the incoming chlorinated water, a media advisory said.

It said the rupture in the potable water line was found Saturday. The numbers of dead fish and salamanders were determined by workers from the Oak Ridge National Laboratory Biological Monitoring and Abatement Program. [Read more…]

Cleanup work shifts to mercury as new Y-12 water treatment plant announced

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Y-12 Water Treatment Plant Announcement

State and federal officials announce a plant to treat mercury-contaminated water at the Y-12 National Security Complex. Pictured from left are Mark Whitney, Robert Martineau, Lamar Alexander, Dave Huizenga, and Stan Meiburg.

Cleanup work in Oak Ridge could shift from radiological contamination to mercury contamination, and a new $120 million water treatment plant at the Y-12 National Security Complex will help reduce mercury as workers tear down four contaminated buildings that were used to make nuclear weapons in the 1950s and 1960s, officials announced Friday.

“This water treatment plant is a major step in addressing one of the biggest problems we have from the Cold War era—mercury once used to make nuclear weapons getting into our waterways,” said U.S. Sen. Lamar Alexander, a Tennessee Republican. He said mercury contamination can cause brain and nervous system damage in people who eat contaminated fish.

Alexander was at Y-12 on Friday along with other federal and state officials to help announce the new water treatment plant, which will be at the head of East Fork Poplar Creek on the south side of Y-12’s main production area. The plant would be connected to a Y-12 storm water system, and it could begin operating in 2019. It would be able to treat 1,500 gallons of mercury-contaminated water per minute. [Read more…]

Alexander questions energy secretary nominee about Oak Ridge mercury cleanup

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U.S. Senator Lamar Alexander

Lamar Alexander

U.S. Sen. Lamar Alexander on Tuesday questioned energy secretary nominee Ernest Moniz on whether the cleanup of mercury contamination in Oak Ridge would be a priority under his leadership, a press release said.

“One of the biggest cleanup problems we have from the Cold War era is mercury contamination of waterways in Oak Ridge,” said Alexander, a Tennessee Republican.

The release said Alexander also asked Moniz to support a planned water treatment facility.

Alexander was referring to about 200,000 gallons of mercury that arrived at the Y-12 National Security Complex in Oak Ridge during the 1950s and 1960s, when the United States was developing nuclear weapons as a defense against the Soviet Union. Alexander said it will cost billions of dollars to clean it up. [Read more…]