O-Chi-Chak-Ko-Sipi First Nation Water Treatment Plant Upgrades

O-Chi-Chak-Ko-Sipi (OCC) First Nation Reserve No. 279 is located in the southern basin of Lake Manitoba, in the region Manitoba Parks Region, 120 km northeast of Dauphin and 300 km northwest of Winnipeg and accessible by all-weather roads. The existing water treatment system does not meet applicable guidelines, including those of Indigenous Services. Provincial requirements of Canada (ISC), Health Canada or Manitoba for surface water treatment. Furthermore, the system requires additional storage capacity to meet future community demands, provide for the fire protection needs, and meet the disinfection requirements for a surface water source. Therefore, a new Water Treatment Plant (WTP) and its associated components are proposed.


The current water distribution infrastructure consists of partial piped distribution, and partial trucked distribution. As a result of the upgrade, the newest subdivision (24 homes) will be converted from truck-hauled to piped distribution. The current wastewater infrastructure consists of decentralized, truck-hauled wastewater collection system. Generally, each residence/building has an independent wastewater holding tank which is emptied via sewage truck and transported to the Nation's wastewater lagoon. Approximately 66 wastewater holding tanks are in operation at present, based on the number of current homes. As a result of the proposed upgrade, the newest subdivision (24 homes) will be converted from truck-hauled to piped wastewater collection.

The proposed project includes:

• Construction of a new Water Treatment Plant (WTP) building and interior equipment with attached truckfill station,

• Installation of a new raw water intake pipe to withdraw freshwater from Lake Manitoba, which will be fitted with a Fisheries and Oceans Canada (DFO) compliant end-of-pipe screen and zebra mussel control system,

• Construction of a new raw water intake pumphouse and supply line to the WTP,

• Construction activities related to wastewater lagoon capacity upgrade including construction of a new low pressure sewer system and forcemain to transport wastewater from the connected homes/buildings to the wastewater lagoon,

• Installation of piping to connect the new WTP to the existing water distribution and sewer system for the community as well as service to the new subdivision (24 connections).

• Decommissioning of the existing WTP and raw water pumphouse.


Latest update

Jan 5, 2024 – Indigenous Services Canada issued its Notice of Determination and determined that the project is not likely to cause significant adverse environmental effects.



Indigenous Services Canada
Shelly Johnson, Senior Environmental Specialist
200-365 Hargrave Street
Winnipeg, Manitoba R3B 3A3
Telephone: 204-984-0709
Email: shelly.johnson@sac-isc.gc.ca

  • Location

    • O-Chi-Chak-Ko-Sipi First Nation Water Treatment Plant Upgrades (Manitoba)
  • Nature of Activity

    • Water Management
  • Assessment Status

  • Start Date

  • Proponent

    O-Chi-Chak-Ko-Sipi 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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