The Environmental Assessment (EA) Process

An environmental assessment includes consultation and engagement with Indigenous communities, government officials and agencies, and interested persons and organizations. The process is designed to assess the existing environment and mitigate potential effects before decisions are made about proceeding with a proposed project. Waasigan requires completion of a comprehensive environmental assessment under Ontario’s Environmental Assessment Act.

The Ministry review of Hydro One’s Waasigan Transmission Line Amended Environmental Assessment has been published on the Ministry of the Environment, Conservation and Parks’ website for a five-week comment period, ending at:
5 p.m. on Friday, July 26, 2024.

Please click here for more information and to submit your comments.


Amended Environmental Assessment

Hydro One has submitted the EA to the Ministry of the Environment, Conservation and Parks (MECP) for review and approval.

Read the Amended Environmental Assessment Highlights

Amended Environmental Assessment

Amended Environmental Assessment Appendices

Amended Environmental Assessment Record of Consultation

Amended Environmental Assessment Interactive Mapping Tool

The interactive mapping tool can be used to review the Project footprint, terrestrial, aquatics and other environmental data captured in the final EA Report. This detailed information is available to assist in the review of the final EA Report and provide feedback.

View the Final Environmental Assessment Interactive Mapping Tool

Additional Amended Environmental Assessment Supporting Documents

Physical locations for review

  • Atikokan Public Library
    214 Sykes, Atikokan

  • Dryden Public Library
    36 Van Horne Avenue, Dryden

  • Ignace Public Library *USBs only
    36 Main Street, Ignace

  • Shuniah Municipal Office
    420 Leslie Avenue, Thunder Bay

  • Thunder Bay Public Library Waverley Branch *USBs only
    285 Red River Road, Thunder Bay

  • Kaministiquia Community Centre
    6197 Dawson Road, Kaministiquia

  • MECP Environmental Assessment Branch
    135 St. Clair Avenue W, 7th Floor, Toronto

  • Shebandowan Community Centre
    142 Shebandowan Rd, Shebandowan

Field Program

Hydro One has completed field work to collect data for the EA to support the selection of a preferred route and assess potential project effects. Field programs can be viewed here:

Click here to view the current field work schedule. Maps of proposed survey locations are available here.​

Field Work Notices

Terms of Reference

The Terms of Reference is the first step in the EA process and provides the framework for how the EA will be carried out. A draft Terms of Reference was available for public review and comment between June 29 and August 14, 2020. Hydro One submitted a proposed Terms of Reference to the Ministry of the Environment, Conservation and Parks (MECP) in October 2020. The proposed Terms of Reference was then amended based on comments received and submitted to the Ministry in June 2021. Hydro One received approval of the amended Terms of Reference from the MECP in February 2022. Click here to view the Notice of Approval on the Ministry’s website.

Please see below to view the amended Terms of Reference:

Please see below to view the Record of Consultation for the proposed and amended Terms of Reference:

To provide comments or to be added to the project contact list, please call or email:​​