Associated Press
In this photo provided by Bayer CropScience, a trailer with six tanks holding hydrogen chloride is parked at the Bayer CropScience facility near Lubbock, Texas, in early May 2013. Hazardous materials experts were working Thursday to drain the leaking tank into a recovery tank. The leak forced the evacuation of about 100 families beginning Wednesday, May 8, 2013. The mandatory and voluntary evacuation was lifted late Thursday. An official said it will take up to two days to drain the tank. (AP Photo/Bayer CropScience, Monty Christian) NO SALES

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