Solution Bonaventure

The Corporation conducted an innovative environmental project in this area to protect the St. Lawrence River from groundwater contaminants in the sector of the Bonaventure Expressway.

For 100 years, the shore of the St. Lawrence River was used as a landfill for industrial and household waste that has caused major contamination problems.

The Solution Bonaventure was launched in June 2016 and has been operating since 2018. The goal was to implement concrete solutions to prevent contaminants from flowing into the river.

Together, the federal, provincial and municipal authorities responsible for this land are investing in restoring its ecological balance. The Corporation has spearheaded these historic partnerships to identify an integrated solution to this environmental problem for the entire site.

The west sector includes the land along the Gaétan-Laberge blvd. at the approach of the Bonaventure Expressway. In this area, groundwater analyses indicated the presence of ammonia nitrogen, polycyclic aromatic hydrocarbons (PAH), and dissolved metals.

The east sector includes the section of the Bonaventure Expressway between the Clément Bridge and Victoria Bridge. Here, testing detected free-phase petroleum hydrocarbons (diesel) contaminated with polychlorinated biphenyls (PCBs). These hydrocarbons float at the top of groundwater.

For detailed environmental information, we invite you to consult the Reports and studies page.

For more information about rehabilitation in the area of the Pointe-Saint-Charles industrial park (a property of the Ville de Montréal), visit the Ville de Montréal’s website.