At a March Michigan Pipeline Safety Advisory Board meeting, Enbridge officials admitted that the outer coating layer on Line 5 has failed in places — a repair the company usually doesn’t take care of.
Enbridge officials told the state board that Line 5 faces “delamination” — spots where the multi-layered anti-corrosion coating has been completely lost, leaving bare metal exposed — in 18 places on the pipeline. Enbridge has said it will investigate the delaminated areas further, after contradicting statements from the company left