Public Services and Procurement Canada – Cape Breton Operations (PSPC-CBO) Mine Water Retention Pond, (DFRP# 03759), Hinchey Avenue, Lingan, Cape Breton County, NS

The proposed project will include the construction of a lined, mine water retention pond to aid in ongoing mine water management.  The proposed pond will be constructed off of Hinchey Avenue in Lingan, Cape Breton Regional Municipality, in Nova Scotia.  The project will consist of clearing and grubbing of an area of small trees and scrub brush that will measure approximately 4,000 m2 in size.  The contractor will excavate the cleared area saving the top 0.5m of material as overburden and excavate an additional 2m-2.5m in depth and using this material to construct the earthen berms of the retention pond, complete with 2:1 side slopes. The footprint of the completed pond will measure approximately 25m x 75m (1,875m2) and will have a capacity of approximately 2,000m3 of water.  The project will also consist of the installation and hook-up of a small existing electrical control building, the installation of 3" (7.6cm) diameter PVC pipe from existing well to the proposed pond, as well as the extension of existing electrical supply lines on site to the proposed building. 

 

Water will be held in the retention pond and monitored.  Water will be monitored for metals, acidity, and general chemistry. Toxicity testing would also be completed on the water.  If water sample results meet background conditions, the mine water would be discharged through a 500mm discharge pipe out of the wall of the pond (with a boot welded to the liner) and then into a rock lined drain to a large on-site wetland.  The flow is estimated to be approximately 50USgpm to a maximum of 100USgpm. The wetland ultimately drains over the cliff into the Atlantic Ocean.

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Latest update

Notice of Intent to Make a Determination – Start of Public Comment Period

 

May 20, 2026 – Public Services and Procurement Canada – Cape Breton Operations (PSPC-CBO) intends to make a determination regarding whether carrying out the project located in Lingan, Nova Scotia is likely to cause significant adverse environmental effects. To help inform this determination, PSPC-CBO is inviting public comments in respect to that determination for 30 days following the posting of this notice.

 

Written comments must be submitted by June 20, 2026 to:

SPAC.RAEvaluationsEnv-AREnvEvaluations.PSPC@tpsgc-pwgsc.gc.ca.

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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 20, 2026

Contacts

Public Services and Procurement Canada
Joseph MacPhee, Regional Manager
70 Crescent St
Canada Building Wentworth Court Room SYD2
Sydney, Nova Scotia B1S 2Z7
Telephone: 902-564-2779
Email: Joseph.MacPhee@tpsgc-pwgsc.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 subject property a 13.9 hectare parcel of land (PID# 15501141; DFRP # 03759) located of Hinchey Avenue in Lingan, Cape Breton Regional Municipality, Nova Scotia. (Nova Scotia)

  • Nature of Activity

    • Building and Property Development
    • Water Management

  • Assessment Status

    In progress

  • Start Date

    2026-05-20

  • Proponent

    Public Services and Procurement Canada – Cape Breton Operations (PSPC-CBO)

  • Authorities

    • Public Services and Procurement Canada

  • Assessment Type

    Project on federal lands

  • Reference Number

    90478

Nearby assessments

...within 200 kilometres
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