Group finds more oil and gas spills from Enbridge’s Line 5 than previously thought

Advocates with the National Wildlife Federation say they’ve uncovered more oil and gas spills from Enbridge’s Line 5 than they previously thought, raising questions about how leaks are reported and whether there have been more. The group said Monday it has found at least 29 instances of oil and natural gas liquids spills totaling more than one million gallons over the course of the pipeline’s 64-year history. That’s nearly double the amount the group previously thought had occurred. The 29 spills, which were mostly detected by the public and local government personnel rather than the company’s remote pipeline detection system, date back to 1968, according to a map of the data. The group also says its findings shed light on the history of Line 5’s inland path — which runs from northern Wisconsin to Sarnia, Ontario — while much of the attention has focused on the underwater section beneath the Straits of Mackinac.