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.

The list of permits and authorizations Enbridge must still obtain includes:

  • U.S. Army Corps of Engineers
    • Section 404/10 individual permit
    • Section 408 authorization
  • U.S. Fish and Wildlife Service
    • Bald eagle nest disturbance permit
  • Bureau of Indian Affairs
    • Right-of-way grant
  • Fond du Lac Band of Lake Superior Chippewa
    • Tribal permits and authorizations
  • Minnesota Department of Natural Resources
    • License to cross public waters
    • Work in public waters permit
    • License to cross public lands
    • Long-term lease for access roads to valves
    • Short-term leases for both haul and access roads
    • Endangered species permit
    • Gully 30 calcareous fen management plan authorization
    • Individual groundwater appropriation permit
    • Individual surface water appropriation permits, including Gully 30 calcareous fen
  • Minnesota Pollution Control Agency
    • Section 401 water quality certification and anti-degradation assessment
    • Clearbrook Terminal air quality permit
    • National Pollutant Discharge Elimination System (NPDES) industry hydrostatic discharge permit
    • NPDES construction stormwater general permit
    • NPDES general construction stormwater coverage for equipment yards
  • Minnesota Department of Transportation
    • Road crossing permit
    • Temporary access permit
  • Watershed Districts
    • Red Lake Watershed permit
    • Two Rivers Watershed permit
    • Middle-Snake Watershed permit

The remaining environmental permits listed above relate to how the pipeline will be constructed; these 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.