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Originally published Tuesday, December 16, 2008 at 2:46 PM

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Alcoa dredges contaminated sediment from Columbia

Alcoa Inc. has removed more than 5,000 cubic yards of PCB-contaminated sediment from the Columbia River and its shoreline at an old smelter site in Vancouver, Wash..

VANCOUVER, Wash. —

Alcoa Inc. has removed more than 5,000 cubic yards of PCB-contaminated sediment from the Columbia River and its shoreline at an old smelter site in Vancouver, Wash..

Alcoa started the dredging operation Dec. 1. Alcoa and state officials say the most contaminated sediment has been removed. The project is expected to be completed by the end of February.

Cleanup of the site had been stalled for a decade. An estimated 50,000 cubic yards of sediment overall need to be removed.

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