Big Horn Reserve Water System

Stoney Tribal Administration plans to upgrade the water treatment and distribution infrastructure on Big Horn Reserve No. 144A. Proposed works include the extension of 10 km of the existing distribution pipes, the construction of a new Water Treatment Plant, the upgrade of each existing well's long-term yield and peak withdrawal capacity, an upgrade of the existing filtration process, an upgrade of the existing reservoir to 900 m3, a new 100m3 Storage reservoir, 2 Pressure Reducing/Sustaining Stations and upgrades to the existing school reservoir. Proposed project activities include clearing vegetation, removal of topsoil, grubbing, and re-grading. The proposed construction method is to use an isolated open-cut for the distribution pipe's water and wetland crossings.

Latest update

August 23, 2023 – Indigenous Services Canada issued its Notice of Determination ( and determined that the project is not likely to cause significant adverse environmental effects.


Key documents

Key documents
Document Number Document Title File Date
2 Notice of Determination - August 23, 2023
1 Public Comment Period on Intent to Make a Determination - October 3, 2022


Indigenous Services Canada
Cassandra Breton, Environment Officer
630 Canada Place 9700 Jasper Ave
Edmonton, Alberta T5J 4G2
Telephone: 587-338-7033

  • Location

    • Big Horn Reserve No. 144A (Alberta)
  • Nature of Activity

    • Water Management
  • Assessment Status

    In progress
  • Start Date

  • Proponent

    Stoney Tribal Administration
  • 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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