Line 3 Replacement Project

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Environmental Permitting

The Minnesota Public Utilities Commission (PUC) has granted Enbridge a Certificate of Need and a Route Permit for Line 3 replacement.

On March 1, 2019, the State of Minnesota provided Enbridge schedules and timelines for the full review of remaining permits, including stakeholder input, to be completed by November 2019:

Other remaining permits and certifications include:

  • U.S. Army Corps of Engineers:
    • Section 404/10 (Wetland and Water Body Crossing Permit)
    • Section 408 Request: (Cross Civil Work Permit)
  • Tribal permits and certifications:
    • Fond du Lac Band of Lake Superior Chippewa Water Quality Certification
    • Fond Du Lac Band of Lake Superior Chippewa Wetland Permit

The remaining environmental permits listed above relate to how the pipeline will be constructed; these 20-plus State of Minnesota and federal permits will ensure the protection of cultural resources, water, land and wildlife during construction.

Some of these permits are specifically about water protection. Pipelines, by nature, are like other transportation infrastructure. Concerns about water are limited to dewatering the project site and storm water management. Unlike mines, paper plants or other industrial applications, water is not part of an ongoing process that requires treatment and monitoring.

During construction, we will work temporarily in wetlands and water bodies, pump water out of ditches, and use water to pressure test the new pipeline. The Minnesota Pollution Control Agency makes sure that potential impacts are defined and managed. We will also be increasing our operations at Clearbrook Terminal, which impacts our air permit.