FILE - In this July 29, 2012 file photo, a worker monitors the water in Talmadge Creek in Marshall Township, Mich., near the Kalamazoo River as oil from a ruptured pipeline, owned by Enbridge Inc, is ... more 
FILE - In this July 29, 2012 file photo, a worker monitors the water in Talmadge Creek in Marshall Township, Mich., near the Kalamazoo River as oil from a ruptured pipeline, owned by Enbridge Inc, is vacuumed out the water. Federal investigators are expected to present their findings Tuesday, July 10, 2012 on the likely cause of a pipeline rupture that spilled more than 800,000 gallons of crude oil into the river nearly two years ago. (AP Photo/Paul Sancya, File) less 
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Associated Press | Photo By Paul Sancya, File
Tue, Jul 10, 2012 12:39 PM EDT