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August 31, 2016

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Workers wearing protective clothing and footwear inspect a valve at the "C" tank farm during a media tour of the Hanford Nuclear Reservation Wednesday, July 9, 2014 near Richland, Wash.

AP Photo/Ted S. Warren

Workers wearing protective clothing and footwear inspect a valve at the "C" tank farm during a media tour of the Hanford Nuclear Reservation Wednesday, July 9, 2014 near Richland, Wash.