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Line 5: applicable permits
The following information is for applicable EGLE resource permits related to Line 5.
Browse all pending and past permit application documents
Pending permit applications
Enbridge Energy submitted an application for a Part 31, Water Resources Protection, National Pollutant Discharge Elimination System (NPDES) permit and an application for permit under Part 303, Wetlands Protection, and Part 325, Great Lakes Submerged Lands, of the Natural Resources and Environmental Protection Act, 1994 PA 451, as amended. The applications request authorization for surface facilities associated with the proposed tunnel and issuance of permits would not constitute authorization for construction of the tunnel.
Permit applications are currently being reviewed for administrative completeness. Once the applications are determined to be administratively complete, the formal permit processing period will begin. This process includes an application review by Department of Environment, Great Lakes, and Energy (EGLE) and opportunities for public comment.
Additional information
The NPDES, Wetlands Protection and Great Lakes Submerged Lands permit application submissions request the following.
- The NPDES permit application requests the discharge of 5 million gallons per day of noncontact cooling water, various wastewater associated with tunnel construction and drainage, hydrostatic pressure test water, groundwater seepage, and storm water to Lake Michigan. Requested changes to the previous permit include moving all post tunnel construction discharge from Outfall 003 to Outfall 001, moving surface water intake to the south side of Lake Michigan, and using horizontal directional drilling as the installation method for the water supply intake to place the pipe under the lakebed surface.
- The Wetlands Protection and Great Lakes Submerged Lands permit application request includes the review of approximately 0.018 acres of impacts to Lake Michigan submerged lands at the south (McGulpin Point) portal location, and approximately 1.53 acres of wetlands impacts at the north (Point La Barbe) portal location.
Part 91 - Soil Erosion and Part 31 - Construction Stormwater
For construction activities disturbing one or more acres and discharging stormwater to Michigan waters, EGLE's Water Resources Division (WRD) uses a "Permit-by-Rule" process (Rule 323.2190 under Part 31), requiring first obtaining Part 91 (Soil Erosion and Sedimentation Control) permit from the County Enforcing Agency (CEA).
For earth disturbance over 5 acres, Enbridge will need a Notice of Coverage (NOC) for Construction Activities, after obtaining their Part 91 Permits, and then follow Permit-by-Rule.
Part 91 - Soil Erosion Sedimentation Control
Enbridge would need to apply to the County Enforcing Agency (CEA) for a Part 91 Permit. CEAs will review and issue appropriate Part 91 Permits, prior to Enbridge starting work.
Part 31 - Construction Storm Water (Permit-by-Rule)
For earth disturbances over an acre with a discharge to surface waters, Enbridge will need to follow Permit-by-Rule. For earth disturbance over 5 acres, Enbridge will need a Notice of Coverage (NOC) for Construction Activities, after obtaining their Part 91 Permits, and then follow Permit-by-Rule.
Part 303 - Wetlands Protection
Enbridge has requested a wetland permit under Part 303 that includes a wetland mitigation plan. Work is proposed that may impact threatened and endangered (T&E) plant species. Permit application review would include input from the Department of Natural Resources and the U.S. Fish and Wildlife Service to avoid and minimize impacts on T&E species.
Part 325 - Great Lakes Submerged Lands
The Great Lakes Submerged Lands Act is used primarily in the regulation of construction activities built on the bottomlands of the lake. The current application proposes impacting approximately 0.018 acres to Lake Michigan submerged lands at the south (McGulpin Point) portal location. The law and rules require EGLE to ensure that a project will have a no more than minimal impact on the public trust, adjacent riparian property owners, and the environment prior to issuing a permit.
Find the latest updates on the Line 5 homepage
Information on the Line 5 tunnel project proposal by Enbridge, including overview, timelines, recent permit documents and decisions, and more.