Chemawawin Cree Nation Water Treatment Plant Project

Chemawawin Cree Nation Reserve No. 309 is located next to Easterville Manitoba, approximately 440km north of Winnipeg. Chemawawin Cree Nation IR No.2 is located adjacent to the community of Easterville on the south-east shore of Cedar Lake at the north end of Provincial Road #327. The current water and wastewater infrastructure at Chemawawin IR No. 2 consists of a combination of a centralized WTP that supplies both piped and trucked distribution, and facultative sewage lagoon with a combination of gravity sewer and holding tank/truck haul collection. The Community's existing WTP is located in the center of the community and was constructed in 1996 with a groundwater supply that is treated using manganese greensand filtration and chlorination prior to treated water storage in underground concrete reservoirs.

In its current configuration the WTP experiences operational issues due to its supply wells. It is therefore proposed to decommission two of the existing community supply wells and install additional groundwater well further to the south and southeast from the existing well field site. The proposed project includes construction of a new Water Treatment Plant (WTP) that is capable of processing established and expanded groundwater supply wells that will satisfy the community's 20 year design horizon. The WTP will be designed such that the treated water quality meets or exceeds the requirements set out on Health Canada's Guidelines for Drinking Water Quality (CDWQ) and Indigenous Services Canada (ISC) Design Guidelines for First Nations Water Works.

Infrastructure will include a new raw water supply system, a new water treatment plant and building which includes the following systems: pre-oxidation, greensand based filtration system and backwash pumps, final disinfection using sodium hypochlorite, new treated water reservoirs, wastewater holding tanks and waste pumps, distribution and high-flow pumps, standby diesel fueled generator and truck-fill. There will also be a wastewater discharge pipeline to the existing sewage collection systems that eventually discharged to the existing lagoon. The new WTP will be supplied with a 3 Phase, 600V service requiring a new electrical distribution infrastructure to be provided to the site.


Latest update

July 2, 2021 – 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 for the Chemawawin Cree Nation Water Treatment Plant Project - July 2, 2021
1 Chemawawin Cree Nation Water Treatment Plant Project - March 2, 2021


Indigenous Services Canada
Dan Benoit, Sr Environmental Specialist
365 Hargrave Street
Winnipeg, Manitoba R3B 3A3
Telephone: 204-599-8579
Fax: 204-983-2936

  • Location

    • Chemawawin Cree Nation (Manitoba)
  • Nature of Activity

    • Water Management
  • Assessment Status

  • Start Date

  • Proponent

    Chemawawin Cree 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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