08/19/2026
Re: Imperial Oil Resources N.W.T. Limited (Imperial) - Norman Wells Operations (NWO) - Request to modify water withdrawal approach – Modification - Part G
The Sahtú Land and Water Board met on August 19, 2026, to review the proposed plan to modify the method and locations of withdrawing water from the Mackenzie River for the Norman Wells Operations (NWO) as requested by Imperial Oil Resources N.W.T. Limited (Imperial) on June 22, 2026.
The SLWB determines that this proposal is a Modification as per Part G: of Water Licence S13L1-007. As the proposed Modification results in changes to the Surveillance Network Program (SNP) and the Quality Assurance/Quality Control (QA/QC) Plan, both which require Board approval to be updated, the requested Modification was reviewed and approved by the Board. This proposal is subject to the following:
Imperial shall include a summary of water use activities and volumes in the NWO Annual Report 2026 and subsequent annual reports;
Imperial shall complete the following steps prior to converting the CPF settling pond into a Category A holding pond as outlined in the July 31, 2026, Crown-Indigenous Relations and Northern Affairs Canada (CIRNAC) Inspector letter to the Board:
• Sample water currently contained in the CPF settling pond to confirm it meets Category B criteria
• Clean the CPF settling pond in accordance with current procedures outlined in the QAQC Manual
• Collect, sample and appropriately dispose of sediment accumulated in the CPF settling pond in
accordance with current procedures
• Sample water from within the CPF settling pond once refilled to confirm Category B status
• Report the results of the water and sediment sampling to the Sahtú Land and Water Board and the Inspector
Imperial shall submit an updated QA/QC Plan; and
Imperial shall contact the Crown-Indigenous Relations and Northern Affairs Canada (CIRNAC) Inspector Erika Nissen two weeks prior to the change in the water withdrawal approach at 819-920-4703.
Changes to the Surveillance Network Program (SNP)
Imperial is requesting to change the status of the two SNP surface water monitoring stations to inactive. Once these monitoring stations become inactive, sampling under Section C and measured water temperatures under Section H of the SNP will no longer be conducted. Imperial is also requesting to change the CPF Settling Pond from a Category B facility to a Category A facility, reducing the sampling and analysis requirements for the Settling Pond.
The Board determined that the Modification proposes changes to the SNP and not to specific water licence conditions. Changes to the SNP do not warrant a water licence amendment process but require approval from the Board. The Board approves the status change for the two surface water monitoring stations, S13L1-007-1 and S13L1-007-2, to inactive, and the CPF Settling Pond from Category B to Category A, subject to this letter’s requirements. Imperial is required to continue to follow the SNP requirements, including measuring, recording and reporting the quantities of fresh water pumped from the Mackenzie River at all withdrawal locations.
Submission Requirements
The Board requires that the QA/QC Plan be revised to include all changes detailed in the Modification and submitted by September 9, 2026. The revised QA/QC Plan will be considered to be approved when the Licensee receives written confirmation of conformity from Board staff. Until the revised QA/QC Plan is approved, the Licensee may not commence the activities associated with the Modification, and must comply with the QA/QC Plan, Version 1.5.
CIRNAC has provided a letter of conditions (attached and available on the Public Registry).
The letter can be found on our public registry:https://registry.mvlwb.ca/Documents/S13L1-007/S13L1-007%20-%202026%20Water%20Withdrawal%20Approach%20-%20Modification%20-%20SLWB%20Approval%20Letter%20-%20Aug19_26.pdf