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McArthur Lake

Located in Saskatchewan

McArthur Boomerang Discharge Upgrade: Uranium

Year: 2014
Client: Cameco Corporation
Project Scope Performed Under: PBN Nuna Contracting Ltd.

 

The McArthur River mine, in tandem with Key Lake mine, is the world’s largest producer of high-grade uranium. To prevent erosion and the deposition of materials into Boomerang Lake, a rock-lined conveyance channel was designed by the client to transfer treated mine effluent from an upstream dam location to a new precast outfall structure 420 metres downstream at Read Creek. PBN Nuna Contracting Joint Venture, a partnership with Pinehouse Business North Limited Partnership (Pinehouse First Nation), provided construction services under strict environmental monitoring.

Project Scope

  • Clearing
  • Peat removal
  • Common fill installation
  • Channel construction to strict design tolerances
  • Geotextile
  • Riprap and granular placement
  • Installation of a precast outfall structure
  • Commissioning

With a small workforce and fleet, PBN Nuna completed the project on schedule and with a solid safety record.

McArthur River Substation Project

Year: 2014
Client: Cameco Corporation
Project Scope Performed Under: PBN Nuna Contracting Ltd

 

A new electrical substation and backup diesel generation plant was constructed to support the ongoing expansion of the mine.

Project Scope

  • Supply and installation of a firewater line (pipe installation and civil work encompassing over 800 metres of insulated HDPE 6″ and 8” DR11 pipe)
  • Construction of firewater huts (3 small light-gauge steel buildings)
  • Fencing and barriers
  • Supply and installation of a counterpoise (800 metres of guywire excavated and backfilled)
  • Miscellaneous site services, including material-receiving support, site laydown preparation, and carpentry work around camp

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