WCW24

John D'Or Prairie is the administrative center of Little Red River Cree Nation, located 125 km east of High Level, Alberta. The community Water Treatment Plant was completed in 2019. After a few years of operation, the existing groundwater supply wells were not achieving the anticipated yield, requiring supplementation from seasonally available surface water sources to keep up with peak raw water demands. This situation was escalated to an emergency in May 2023 when the Paskwa Wildfire (HWF-030) displaced approximately 1,700 persons from the neighbouring community of Fox Lake to John D'Or Prairie. To mitigate the risk of a raw water shortage, a permanent raw watermain to the Peace River was implemented, with temporary pumping measures over the winter of 2023-2024 and plans for a future permanent intake structure. The design and construction of the ~15-km watermain was completed in a timeline of less than 6 months. Other key elements of the project included upgrading the existing WTP membrane system to allow for the increased demand and switch from a groundwater raw water source to a surface water source and conversion of the process waste cell to a raw water storage cell. Unique considerations had to be made at the design and administration stages of this project to account for the remote work location and emergency basis of the project.