Dokis First Nation Water Treatment Plant

The community is currently supplied with potable water via a water treatment plant (WTP), which was constructed in 1992. The plant treats water from two water supply wells which are inadequate to meet the existing and 20-year needs of the Dokis First Nation and are currently considered GUDI wells. Moreover, many of the WTP components are near the end of their anticipated service life and the system does not have the capacity to meet future needs.


Three new groundwater wells were recently established in an undeveloped area of the community northwest of Loop Street. In the hydrogeological study completed in 2019, it was confirmed that two of the newly developed production wells have sufficient yield to meet the 20-year design capacity. The completed hydrogeological report also confirmed that a back-up well meets the yield requirements for a backup well. The Ministry of Environment, Conservation and Parks (MECP) requires the new wells to undergo a monitoring program consisting of regular sampling and testing to confirm the wells meet the requirements of GUDI Category 1. The wells are presumed to be GUDI Category 1 but are considered to be GUDI Category 2 until the monitoring period is complete. Provisions for GUDI treatment will be considered during preliminary design and discussed with the Project Team.


Ultimately, through this proposed work the Dokis First Nation will be establishing a new potable water system for reliable treatment and supply of drinking water. This will provide potable water to existing serviced lots and allow for future growth in the community.


Latest update

The assessment is in progress.


Key documents

Key documents
Document Number Document Title File Date
1 Notice of Intent to Make a Determination - Start of Public Comment Period - January 18, 2024


Indigenous Services Canada
Christine Bolle, Environment Officer
25 Eddy Street
Gatineau, Quebec
K1A 0H4
Gatineau, Quebec K0G 1K0
Telephone: 416-807-0489

  • Location

    • Dokis First Nation (Ontario)
  • Nature of Activity

    • Water Management
  • Assessment Status

    In progress
  • Start Date

  • Proponent

    Dokis First Nation
  • Authorities

    • Indigenous Services 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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