Summary
A PCB-tainted stretch of Columbia River shoreline will be cleaned to the highest level that's technically feasible, state regulators announced Thursday.
Alcoa will have to dredge up and haul away a huge volume of sediment. Department of Ecology officials said the company will remove tainted sediment as deep as 3 feet from a "hot spot" of pollution that measures roughly 2 acres in size - about 300 by 350 feet.See the full content of this document
Extract
Alcoa to Clean Pcb-Tainted River Shoreline
Alcoa, which opened its Vancouver aluminum smelter in 1940, isn't disputing the state's requirement.
"It's probably one of the most conservative cleanup standards ever issued by the state," said Mark Stiffler, Alcoa's directo...See the full content of this document
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