FILE-This Monday Jan. 13, 2014 file photo shows a worker moves a drilling machine around storage tanks at Freedom Industries storage facility in Charleston, W.Va. Two years after thousands of gallons of a coal-cleaning agent leaked into the drinking water supply of 300,000 West Virginians, the sentencings of six officials at a chemical distributor in February brings a closure to criminal cases in the spill. (AP Photo/Steve Helber)
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