AMENDMENT TO CLOSING TIME: Please disregard the Ariba Discovery posting response deadline closing time and CanadaBuys posting closing time. All required supporting documentation and bid submission must be submitted by June 19, 2023 at 2:00 PM EDT. All bids submitted after 2:00 PM EDT will result in the bid being declared non-responsive. This procurement is selectively tendered to EW479-192534 supply arrangement holders for remediation construction services for northern contaminated sites. Suppliers without a supply arrangement may take advantage of the ongoing opportunity for qualification at https://canadabuys.canada.ca/en/tender-opportunities/… The objective is to provide camp support and field support services for other activities occurring on the Great Bear Lake site, including camp opening, operation, maintenance, and closure. This requirement is subject to the Sahtu Dene and Metis Comprehensive Land Claim Agreement and the Tli?cho Land Claims and Self-Government Agreement.