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Science Friday > Archives > 1998 > April > April 3, 1998:

Hour One:
Nuclear Waste:

For years, the Hanford nuclear reservation in Washington state produced plutonium for nuclear weapons. Although the plant stopped production in 1987, about 54 million gallons of radioactive waste are still stored at the site - and many of the 177 underground storage tanks are leaking. And now that almost a million gallons of that waste has leaked from tanks and entered the ground water supply, the Department of Energy has admitted that it doesn't know how to clean up the mess.

The DOE once estimated that it would take 10,000 years for the waste to reach groundwater - but in 1997, they announced that the wastes were already there. A report issued last week by the General Accounting Office, Congress' investigative department, said that the Department of Energy's understanding of how waste moves through the soil above the water table was "inadequate" to make decisions on how to handle the leak situation. In fact, said the report, the DOE "does not know what information is needed to make key cleanup decisions."

The leaking wastes are a matter of concern for many in the area. The Columbia River runs southeastward through a portion of the reservation, several miles away from the nearest tank. In 1995, about 175,000 people lived immediately downstream from Hanford, in and near the towns of Kennewick, Pasco, and Richland.

On this hour, the problems at Hanford - what programs exist to deal with nuclear waste - and what does this situation mean for Hanford's neighbors?


A map of the Hanford site
(click for larger view)

 


Inside Tank 241 AX. The pole
at upper right is an
air lift circulator.
(click for larger view)

 


A cutaway diagram
of Tank 241 AX 104.
(click for larger view)

 


Inside Tank 104.
(click for larger view)

 

photo credits: Photos courtesy of Hanford Photography. Map courtesy of Hanford Graphics.

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Guests:
Ernest Moniz
Under Secretary
Department of Energy
Washington, DC

Casey Ruud
Environmental Specialist
Washington State Department of Ecology
Kennewick, WA

Tom Carpenter
Director, Seattle Office
Government Accountability Project
Seattle, WA

Bill Madia
Laboratory Director
Pacific Northwest National Laboratory
Richland, WA

Books/Articles Discussed:

"Nuclear Waste: Understanding of Waste Migration at Hanford is Inadequate for Key Decisions" (GAO Report)

(find more SciFri Books here)

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Related Links:
The Tanks Focus Area at Pacific Northwest National Lab
Subsurface Contaminants Focus Area
The Hanford Nuclear Reservation
Department of Energy - Office of Environmental Restoration
Department of Energy - Office of Waste Management
Government Accountability Project

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