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Hanford Managers Confirm Slow Leak In Radioactive Waste Tank

RICHLAND, Wash. – Managers at the Hanford Nuclear Reservation have confirmed that a radioactive waste tank has a slow leak. That waste isn’t getting into the environment.

This house-sized vessel is known as AY-102. It’s made of steel and concrete and buried underground to shield workers from high levels of radiation. It’s full of hazardous radioactive sludge left over from plutonium production here.

Routine periodic visual monitoring (via camera) of the AY-102 annulus found material that was never before seen. Photo courtesy of U.S. Department of Energy
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Routine periodic visual monitoring (via camera) of the AY-102 annulus found material that was never before seen. Photo courtesy of U.S. Department of Energy

It was designed to last for about 40 years, and it’s already had its 44th birthday. The tank is leaking into the space between its two hulls in two spots.

But Tom Fletcher, one of the top tank managers at Hanford says, it’s not reaching the soil or groundwater.

“I would say I’d say it’s more like ketchup," he explains. "This is not a water like consistency material. It’s moving very, very slow.”

The double-shell tanks are supposed to hold the waste until Hanford’s troubled waste treatment plant can be built. The Department of Energy is investigating this leaking tank along with six others like it.

Refractory installation of tank AY-102 at Hanford circa 1970. Photo courtesy U.S. Department of Energy
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Refractory installation of tank AY-102 at Hanford circa 1970. Photo courtesy U.S. Department of Energy

Hanford managers and Washington’s Department of Ecology officials will meet this week to decide next steps.

On the Web:

Hanford's storage tank overview

Copyright 2012 Northwest Public Radio

Copyright 2012 Northwest News Network

Anna King calls Richland, Washington home and loves unearthing great stories about people in the Northwest. She reports for the Northwest News Network from a studio at Washington State University, Tri-Cities. She covers the Mid-Columbia region, from nuclear reactors to Mexican rodeos.