长达数年的法律斗争正在密歇根州和第5行管线操作员Enbridge Inc.之间再次升温，该州采用合法举动on Nov. 13 aimed at shutting down the line in 180 days. The twin pipeline carries light crude oil and natural gas liquids beneath the Straits of Mackinac.

Canada-based Enbridge says it will fight the state’s revocation of an easement granted 67 years ago that allows for extension of the 4-mile pipeline through the straits that connect Lake Michigan and Lake Huron.

恩布里奇发言人瑞安·达菲（Ryan Duffy）在一封电子邮件中说：“我们将在法庭上回应。”

Echoing concerns of environmentalists who have long wanted to see the pipeline closed, Gov. Gretchen Whitmer (D), said in a statement that safety and environmental concerns spurred the decision to cease the transport of oil through the under-water pipeline.

她说：“恩布里奇经常拒绝采取行动来保护我们的大湖区和数百万美国人，他们依靠他们来清理饮用水和好工作。”此外，惠特默声称恩布里奇“反复违反了1953年地役权的条款，而忽略了使我们的大湖和我们的家人处于危险之中的结构性问题。

“Most importantly, Enbridge has imposed on the people of Michigan an unacceptable risk of a catastrophic oil spill in the Great Lakes that could devastate our economy and way of life.”

Enbridge contends that the state has no credible basis to shut down the two-legged pipeline that transports about 23 million gallons of light crude oil and natural gas liquids daily between Superior, Wis., and Sarnia, Ontario.

该公司液体管道总裁Vern Yu在一份声明中说：“正如1953年的地役权所设想的那样，第5行仍然是安全的，并且最近由我们的联邦安全监管机构确认。”

The pipeline operator also accused the Michigan Dept. of Natural Resources, a plaintiff in the case, of not being transparent when it conducted an assessment of the pipeline’s easement compliance, and further asserted that the DNR rejected the company’s offer to allow technical experts to discuss any questions or clarifications related to its review.

该公司断言，2018年的一项协议“考虑了有关管道问题的定期会议，以避免这种情况。”

“With today’s actions by the Governor and Attorney General, based on historical Line 5 compliance, Enbridge finally will have an opportunity to review the DNR’s analysis and provide a thorough response through the legal process,” the company says.

国家在其terminati说on notice that it never should have granted the easement in the first place.

通知指出：“将管道放在繁忙的运输车道下，没有掩护以防止锚袭击，违反了该州保护公众对大湖水域和底层的利益的责任。”

The governor's order does not affect an agreement reached in 2018 with former Gov. Rick Snyder (R), which allows for the replacement of the pipeline’s underwater portion with a new segment that would be contained within a tunnel to be drilled through bedrock beneath the straits.

Enbridge is continuing to advance the $500-million Great Tunnel project and is seeking the required state and federal permits.

该公司表示，关闭5号线将导致密歇根州，俄亥俄州，宾夕法尼亚州和加拿大东部的炼油厂的轻质原油短缺，在密歇根州北部造成丙烷短缺，并通过铁路或卡车增加油的运输。

环保组织表示，该管道构成了威胁，尽管自开放以来从未破裂。

“It’s 67 years old. It’s exceeded its life cycle and is under engineered to withstand the forces of nature,” said Roger Gauthier, treasurer of the Straits of Mackinac Alliance, a group of individuals and businesses seeking to eliminate the threat of crude oil and natural gas pipelines in the Straits.

环保主义者也不想看到另一个类似的泄漏，尤其是与2010年在卡拉马祖河附近的Enbridge油传输线上发生的泄漏相似的泄漏。根据《底特律新闻》的一份报告，这种泄漏影响了超过35英里的河流，并花了四年的时间清理10亿美元。