Installation of a Permeable Adsorptive Barrier (PAB) at 22 Wing North Bay

The Department of National Defence (DND) is proposing a project. DND is proposing to install a 250 m long in-situ permeable adsorptive barrier (PAB) to remediate groundwater impacted by per- and polyfluoroalkyl substances (PFAS) within the bedrock valley at 22 Wing North Bay. Pilot-scale testing will be conducted to evaluate the performance of colloidal activated carbon (CAC) products followed by full-scale implementation and long-term monitoring.

Project activities will include:

  • Installing upgradient and downgradient groundwater monitoring wells to assess conditions pre- and post-injections.
  • Injecting CAC at select intervals to a depth of approximately 5-15 m below ground surface for a distance of up to 70 m for the pilot and approximately 250 m for the full-scale.
  • Site restoration through landscaping, revegetation and contouring with existing grades as required.
  • Long term groundwater monitoring to assess ongoing performance of the PAB.

 

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Latest update

April 28, 2026 - The Department of National Defence intends to make a determination regarding whether the carrying out of the project is likely to cause significant adverse environmental effects. To help inform this determination, the Department of National Defence is inviting public comments until May 17, 2026 respecting that determination.

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Key documents

Key documents
Document number Document title File Date
1 Public Comment Period on Intent to Make a Determination - April 28, 2026

Contacts

Department of National Defence
Contaminated Sites / Sites contaminés, 22 Wing North Bay
22 Wing
North Bay, Ontario P0H 1P0
Email: NorthBayPFAS-NorthBayPFAS@forces.gc.ca


Disclaimer

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.

  • Location

    • 22 Wing North Bay (Ontario)

  • Nature of Activity

    • Water Management
    • Soil management

  • Assessment Status

    In progress

  • Start Date

    2026-04-28

  • Proponent

    Department of National Defence

  • Authorities

    • Department of National Defence

  • Assessment Type

    Project on federal lands

  • Reference Number

    90412

Nearby assessments

...within 200 kilometres
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