PETOSKEY, MI (AP)-- A Canadian-based energy transportation company's preparation of a proposed tunnel that would house a petroleum pipeline caused a borehole to collapse in Michigan, which left debris in the waterway.
The Petoskey News-Review reports Enbridge Energy had been collecting rock and soil samples, which it finished September 12. But documents obtained by the newspaper show that the company did not report the incident to the Michigan Department of Environment, Great Lakes and Energy until November 19.
The tunnel would enclose the Straits of Mackinac's portion of the 66-year-old pipeline, which is also known as Enbridge Line 5. It runs from Superior, Wisconsin to Sarnia, Ontario.
