Notice of Determination

April 9, 2025 – ADM Aéroports de Montréal has determined that the project for the construction of a parking lot located between the restricted area and Jenkins Avenue at YUL Montréal-Trudeau International Airport is not likely to cause significant adverse environmental effects by applying the mitigation measures planned for the project.

This determination was based on a consideration of the following factors:

• Technically and economically feasible mitigation measures listed below;
• Community knowledge;
• Indigenous knowledge and impacts on rights of Indigenous peoples.

The mitigation measures considered for this determination are as follows:

Avifauna

• Cut trees and shrubs before the nesting period.
• Inspect the site regularly and delineate the area where a bird's nest would be found, if any.

Biodiversity

• Keep trees on site.
• Keep a protective radius around trees to protect them.
• Neatly cut off roots and branches that extend into the excavation area.
• Avoid traffic and the deposit of materials on vegetation.
• Restore compacted areas.

Invasive Alien Plant Species (IAPS)

• Identify and mark the IAPS before the start of the work.
• Remove IAPS and send all parts of these plants to landfill.
• Before and after work, inspect and clean machinery and tools to remove mud and invasive alien plant residues (including seeds).
• Clean equipment on infertile ground, away from bodies of water.

Soil and water quality

• Make sure the machinery is in good working order.
• Keep equipment away from streams, ditches and drains and on impervious surfaces.
• Protect ditches, streams, and drains from construction site sediment (e.g., sediment barriers, barnacles, etc.).
• Manage contaminated soil and water in accordance with applicable regulations.
• Have a spill response equipment kit on hand and educate workers.

Air quality

• Keep vehicles and their emission control systems in good working order.
• Limit the idling of vehicles and machines.
• Cover materials with tarps securely fastened at all times during transport.
• Limit the speed to 10 km/h on the construction site.
• Maintain the paths taken and apply dust suppressants to prevent dust.
• Apply gravel in high-traffic areas.
• Use electric vehicles if possible.

Soundscape

• Use less noisy or soundproof equipment and maintain mufflers and catalytic converters.
• Minimize vehicle reversing and equip the equipment with white noise or broadband reverse alarms.
• Avoid banging the rear panels when unloading equipment.
• Establish a traffic pattern and restrict traffic.

Waste management

• Recycle building materials (concrete, wood, metal) to reduce waste.

Accordingly, ADM Aéroports de Montréal may exercise its powers to enable the project to be carried out.