contravention

Canada opens formal investigation into Imperial's oilsands tailings leak in northern Alberta

Canada opens formal investigation into Imperial's oilsands tailings leak in northern Alberta

Federal environmental authorities have launched a formal investigation into a tailings leak at Imperial Oil's Kearl oilsands mine in northern Alberta. Environment and Climate Change Canada (ECCC) announced Thursday it is investigating a suspected contravention of the Fisheries Act, which prohibits the "deposit of a deleterious substance into water frequented by fish," or any place where such substances could enter fish-bearing water.