The Environmental Assessment (EA) that was finished in 2002, predates the Lake Simcoe Protection Plan, Greenbelt Plan, or any climate targets and commitments.

The EA concluded there would be severe impacts to stormwater and groundwater and required upgrades to important studies on groundwater protection, archaeological resources, and stormwater management if the project were to be pursued.

Proceeding without the required studies could mean that underground water that feeds wells in the area could become contaminated with salt and other pollutants from cars and the road. Stormwater that becomes contaminated puts pollution into an already stressed Lake Simcoe, a source of drinking water and fish. No federal fish impact study has been done and no federal permits have been obtained.