The site is in Kincardine, Ontario, which is about 150 miles away from Detroit and sits at the shores of Lake Huron.
The plan would allow millions of gallons of low-level nuclear waste to be stored 2,200 feet below the Earth's surface.
Canada's environment minister will make a final decision.
Despite its proximity to the border, U.S. approval of the plan is not needed.
Many politicians, including congressman Dan Kildee are fighting the plan, saying it threatens the safety of the Great Lakes.
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