Project
Work at the Jean-R.-Marcotte wastewater treatment plant: news and impacts
Last updated August 10, 2022
Reading time: 1 min
The world's largest ozonation unit is under construction at Montréal’s Jean-R. Marcotte wastewater treatment plant. Here's the latest news on the project.
About the project
Where?
- On the grounds of the Jean-R.-Marcotte plant in Rivière-des-Prairies
- Île aux Vaches
- Rue Sherbrooke East
When?
Until December 2024
What?
This huge project is divided into several phases. Each step was planned, in conjunction with the ministries concerned, to limit the impacts on the population and on recreational boaters, as well as on aquatic fauna and flora.
First phase: work on the drainage canals
Until the end of October 2022
- Construction of a temporary bypass canal to allow the plant to continue operating throughout the project
- Connection of the bypass canal to the existing conduit
- Work on the drainage structures located on Rue Sherbrooke East and on Île aux Vaches
November 2022 to April 2023
- Construction of the western siphon
- Redirection of treated water to the eastern outfall
- Closing of the western canal and commissioning of the western siphon
November 2023 to April 2024
- Construction of the eastern siphon
- Redirection of treated water to the western outfall
- Commissioning of the eastern siphon
Quick search
Need help?
Contact us if you have questions.