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May 23, 2017

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Crews clean up a chemical spill along the Elk River in Charleston, W.Va., which compromised the public water supply of eight counties on Thursday, Jan. 9, 2014.

Tyler Evert / AP

Crews clean up a chemical spill along the Elk River in Charleston, W.Va., which compromised the public water supply of eight counties on Thursday, Jan. 9, 2014.