St Theresa Point Northern Store Contamination Remediation

The Proposed Project

Project Summary: The project will involve the installation of a multiphase extraction (MPE) system connected to approximately fifty-eight (58) extraction wells installed across the impacted area to a maximum depth of 13.0 mBGL. The wells will be complimented with independent compressed air lines and steel access covers. Soil vapour from the wells will be extracted under vacuum. Any impacted water entering the system will be treated through the water treatment unit (WTU) which will be equipped with pre-filter media, coalescing hydrocarbon separators, carbon/clay adhesion media and carbon polish. Confirmatory sampling of the treated water will be undertaken prior to discharge. All laboratory results will be compared to current FIGQG guidelines and updates for residential land use. Both the MPE and the WTU will be contained in a modified shipping container.

Infrastructure: Infrastructure will include:  Modified shipping container for storage of the MPE and the WTU; Extraction wells;  Fencing; and Electrical service.

Activities: Site preparation will include installing hydropoles for the MPE system, along with perimeter fencing. Construction activities will include installation of MPE system and extraction wells within parking lot area adjacent Northern Store/Commercial building. A boardwalk will be constructed along a portion of the site to allow pedestrian access from new parking area to building entryway. Operation will include monitoring the system to ensure it's fully operational on a continual basis and collecting treated water samples for confirmatory analysis prior to discharge. Site decommissioning will include decommissioning the extraction wells with a bentonite seal and removal of fencing and MPE system.

Waste generation: Any impacted water will be treated onsite (WTU) prior to discharge. General waste debris will be taken to the community landfill facility.

 


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.

 

Latest update

27 August 2020  – Indigenous Services Canada issued its notice of determination https://www.ceaa.gc.ca/050/evaluations/document/135871  and determined that the project is not likely to cause significant adverse environmental effects.

Key documents

Key documents
Document Number Document Title File Date
3 St Theresa Pt Northern Store Contamination Remediation - August 27, 2020
2 St Theresa Pt Northern Store Contamination Remediation (French Only) - August 27, 2020

List all records

Contacts

Indigenous Services Canada
Lori Bueckert, Environmental Analyst
365 Hargrave Street
Winnipeg, Manitoba R3B 3A3
Telephone: 204-227-3254
Email: lori.bueckert@canada.ca

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


  • Location

    • St Theresa Point Former Bulk Fuel Plant (Manitoba)
  • Nature of Activity

    • Remediation and conservation
    • Soil management
  • Assessment Status

    Completed
  • Start Date

    2019-11-14
  • Proponent

    St Theresa Point First Nation
  • Authorities

    • Indigenous Services Canada
  • Assessment Type

    Project on federal lands
  • Reference Number

    80311

Nearby assessments

..within 200 kilometres
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