MARSHALL, MI (WKZO) - The Detroit Free Press is reporting that Enbridge is refusing to participate in an effort to gather data along the Kalamazoo River, to study the long term impact of the Enbridge oil spill on recreational use and vegetation along the 40-mile stretch of the river impacted by the spill.  

The Michigan Department of Environmental Quality, the Fish and Wildlife Service and two Indian tribes  involved in the two studies say it will cost about $800,000.  Enbridge says there has already been enough data gathered to make such assessments.

The National Resource Damage Assessment says some of the effects of the oil spill may not appear for years.  They need to continue to monitor the river.  More talks over the funding are planned.