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Case: Enbridge Pipeline Release

Oil Spill | Marshall, MI | July 25, 2010

Scientists assess impacts to mussel shells from response-related boat traffic. Scientists assess impacts to mussel shells from response-related boat traffic.

What Happened?

On July 25, 2010, a failure occurred in a 30-inch diameter pipeline releasing diluted bitumen, a heavy form of crude oil, into a tributary creek of the Kalamazoo River in Marshall, MI. This type of oil is also referred to as "tar sands oil." Enbridge, the owner and operator of the pipeline, estimated that approximately 843,000 gallons spilled. NOAA provided trajectory support to Coast Guard Sector Lake Michigan to predict transport of oil in the Kalamazoo River. NOAA and partner agencies also provided recommendations to EPA on ways to minimize the impact of the cleanup activities by identifying ecologically sensitive areas and providing information on cleanup techniques.

What Were the Impacts?

The pipeline rupture discharged oil into Talmadge Creek, which flowed and then along approximately 38 miles of the Kalamazoo River. The oil impacted over 1,560 acres of stream and river habitat as well as floodplain and upland areas, injuring birds, mammals, reptiles and other wildlife. The river was immediately closed to the public and sections remained closed for several years, reducing recreational and tribal uses of the river.

What's Happening Now?

On June 8, 2015, the Trustees announced a settlement with Enbridge that will result in multiple resource restoration projects along the Kalamazoo River and will require Enbridge to pay an additional sum of nearly $4 million. Trustees arrived at the settlement in conjunction with acomprehensive settlement between the State of Michigan and Enbridge.

The Trustees are asking for public comment on a draft Damage Assessment and Restoration Plan/Environmental Assessment (DARP/EA), developed to inform the public about the harm caused by the pipeline rupture and the proposed restoration projects to address these injuries and losses. This Draft DARP/EA is now available for public review and comment, along with the consent decree for the NRDA settlement filed in federal court.


Case Documents

Draft Damage Assessment and Restoration Plan/Environmental Assessment, June 2015


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