The Nibinamik First Nation is proceeding with rehabilitation works to its sewage lagoon. The community, which is located approximately 480 km north of Thunder Bay, Ontario, is accessible by winter roads and fly-in access only. There is no year-round road access. The scope of work consists of removing the existing HDPE liners from the lagoon cells (two cells total), disposal of all materials. Earthworks include reshaping of the interior and exterior dikes, construction of a drainage ditch for the outfall, riprap placement, lowering of one lagoon cell floor, placement of material on top of the new liners, and removal and disposal of sludge from the cell bottom. Piping works include a tie-in to the existing forcemain to direct incoming waste to either cell and installation of a valve, and replacement of an existing intercell pipe and valve. Dewatering/degassing lines will be installed underneath both cell floors. The cells will be covered with a new HDPE liner and cover material. Works also include rehabilitation of the existing truck turnaround and construction of a concrete spillway. The HDPE liner and geocushion have been pre-purchased and are currently in storage. The General Contractor will be responsible to coordinate delivery of materials to site. A pre-qualification process for this project previously occurred in October 2022. The project went to tender, but was not awarded. Any contractor who previously applied for pre-qualification must resubmit a bid for this project. Deductions in score will not be given if the submission contains details from last years submission, provided that the information is up to date and still relevant. Those contractors who did submit but were not pre-qualified are welcome to resubmit. Works are expected to be retendered in the summer of 2023 to allow mobilization over the 2024 winter roads. *Award amount was not released for publication.
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