EPA: Enbridge nearly tripling oil spill dredging

The U.S. Environmental Protection Agency says that Enbridge Inc. will nearly triple the amount of contaminated sediment it dredges in Michigan's Kalamazoo River to clean up after an oil pipeline spill.

The pipeline from Sarnia, Ontario, to Griffith, Ind., spilled into a Kalamazoo River tributary in 2010.

The EPA said Tuesday that Enbridge is implementing a March order to finish additional dredging this year. The work is above the Ceresco Dam upstream of Battle Creek and in Morrow Lake.

The EPA says the project temporarily closes 12 miles of the river. It says Enbridge will dredge about 350,000 cubic yards of sediment.

It says the Calgary, Alberta-based company already has dredged about 190,000 cubic yards of material and recovered 1.15 million gallons of oil from the river.