Building what is touted as the world's largest treatment plant for "mixed" nuclear and chemical waste will require the construction of four concrete facilities on the 65-acre complex of the Department of Energy's Hanford site in Washington state. Designing the facilities for the pretreatment and separation of nuclear wastes has been difficult, the price has ballooned to $12.2 billion and the design completion deadline looms. "Washington state has a lot to lose from ongoing delays, and it is our goal to keep this project on schedule so that the plant can begin treating waste in 2019," said Dieter Bohrmann, a spokesman for the DOE.

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