Gull Bay Lagoon Expansion

The project will expand the sewage lagoon in Gull Bay, Ontario. The work will involve constructing an additional lagoon storage cell that will include a liner, access road and high-level overflow and outlet pipes. The project will increase the size of the lagoon to meet growing demand and provincial design guidelines, which will ensure effluent is appropriately treated before being released into the river and decrease the risk of systematic failure.

Latest update

4/9/2024– The authorities have determined that the proposed project is not likely to cause significant adverse environmental effects. Therefore, the authorities may carry out the project, exercise any power, perform any duty or function, or provide financial assistance to enable the project to be carried out in whole or in part.


Key documents

Key documents
Document Number Document Title File Date
2 Notice of Determination - April 9, 2024


Aboriginal Consultation and Environmental Services
1100 - 180 Kent St
Ottawa, Ontario K1P 0B6

  • Location

    • Gull Bay Lagoon Expansion-Gull Bay First Nation (Ontario)
  • Nature of Activity

    • Water Management
  • Assessment Status

  • Start Date

  • Proponent

    Kiashke Zaaging Anishinaabek (Gull Bay First Nation)
  • Authorities

    • Indigenous Services Canada
    • Infrastructure Canada
  • Assessment Type

    Project on federal lands
  • Reference Number


This map is for illustrative purposes. The markers represent the approximate locations based on available data. More than one marker may be identified for a given assessment.

Nearby assessments

...within 200 kilometres
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