A sand barricade is set up to protect the Grand Rapids, Mich. waste water treatment facility from flood waters is pictured Sunday, April 21, 2013. (AP Photo/MLive.com, Sally Finneran)

Associated Press
A sand barricade is set up to protect the Grand Rapids, Mich. waste water treatment facility from flood waters is pictured Sunday, April 21, 2013. (AP Photo/MLive.com, Sally Finneran)
A sand barricade is set up to protect the Grand Rapids, Mich. waste water treatment facility from flood waters is pictured Sunday, April 21, 2013. (AP Photo/MLive.com, Sally Finneran)
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