Roy Barrier Planned to Stem Hill Base Contamination

Roy Barrier Planned to Stem Hill Base Contamination

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ROY, Utah (AP) -- Environmental officials plan to build a barrier to speed cleanup of a mile-long groundwater contamination through the southern part of this city.

The effort is intended to remove a contaminant called trichloroethylene, caused by Hill Air Force base. The Roy plume is one of 12 caused by improper disposal of degreaser and jet fuel at Hill.

The proposed reactive barrier is a key component of the second phase of a cleanup process that could take up to 30 years to complete.

It would include a 650-foot-long trench holding a sand and iron mixture. TCE found in water passing through the barrier would be broken down into harmless components, said Mark Loucks, an environmental engineer.

TCE has been shown to cause cancer in laboratory rats, but hasn't been linked to cancer in humans. It's currently classified as a probable carcinogen.

Traces of the chemical have been detected in 25 of 210 tested homes in the plume area.

(Copyright 2004 by The Associated Press. All Rights Reserved.)

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