Deschambault Lake Lagoon Expansion

The Peter Ballantyne Cree Nation (PBCN) Kimosom Pwatinahk I.R No. 203 (Deschambault Lake) is proposing the development of the Deschambault Lake Lagoon Expansion. The community of Deschambault Lake is located approximately 150 km west of Flin Flon, Manitoba and has a (2024) population of approx. 1,600 persons. The community's existing wastewater treatment and disposal infrastructure was constructed in 1997 and currently consists of gravity sewer collection, eight lift stations, sewage force mains, and a two-cell facultative lagoon. The existing lagoon is located east of Highway 911, approx. 2 km south of the community and consists of one primary (treatment) cell and one secondary (storage) cell. The lagoon effluent discharges into a drainage channel that eventually discharges into Deschambault Lake. The current lagoon was designed to treat wastewater for a population of approx. 1,250 which is not adequate for the volume of wastewater presently generated by the community. The community is anticipating growth and the construction of additional dwellings over the next 20 years. To meet the projected wastewater generation volumes and the current, more stringent provincial effluent quality regulations, upgrade of the exiting facultative lagoon is required.

 

The new primary treatment cell will be constructed approximately 150 m northeast of the existing lagoon system. The primary treatment cell will cover an area of 7.62 hectares. Liquid depth for the primary cell at design operating stage shall not exceed 1.5 m, with a height of berm set at 2.5 m above the floor. This will include a geomembrane liner and protected sand cover over the liner, and a subdrain system (weeping tile). The lagoon access road will be extended approximately 700 m to reach the new primary treatment cell. A new truck turn-around and truck dump will be installed to service the population that utilize truck haul. The existing 200 mm diameter sanitary sewer forcemain will be decommissioned and routed to the new primary treatment cell.

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Latest update

The assessment is in progress.

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Key documents

Key documents
Document number Document title File Date
1 Notice of Intent to Make a Determination - Start of Public Comment Period - May 5, 2025

Contacts

ISC-SKENV
Indigenous Services Canada
Alvin Hamilton Building, 1783 Hamilton Street
Regina, Saskatchewan S4P 2B6
Telephone: 306-581-3134
Email: isc-skenv@sac-isc.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

    • The Peter Ballantyne Cree Nation (PBCN) Kimosom Pwatinahk I.R No. 203 (Saskatchewan)

  • Nature of Activity

    • Water Management

  • Assessment Status

    In progress

  • Start Date

    2025-05-05

  • Proponent

    The Peter Ballantyne Cree Nation Deschambault Lake

  • Authorities

    • Indigenous Services Canada

  • Assessment Type

    Project on federal lands

  • Reference Number

    89513

Nearby assessments

...within 200 kilometres
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