About 1,800 tonnes of the ash was set to the landfill in July and August, and fears have been raised that the material may be a danger to human health because the ash contains the metallic element cadmium.
Environment Minister Terry Lake says right now there's nothing to indicate that the ash that was dumped poses any risk, but he's ordered his ministry to investigate whether the companies involved complied with the regulations.
The environmental protection division will work with Covanta Renewable Energy, which operates the incinerator for Metro Vancouver, and Wastech, which runs the Cache Creek landfill, to figure out what happened.
The landfill is not authorized to handle hazardous waste, and ash produced by the Burnaby incinerator is supposed to go to a hazardous waste facility in Alberta.
Metro Vancouver says recent samples tested from the Cache Creek landfill are below the threshold for leachable cadmium. (The Canadian Press/CHNL)
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