Alberta regulator says Imperial Oil faces more water problems at Kearl oilsands mine

May 11, 2023 | 1:24 PM

Imperial Oil is facing more wastewater problems at its Kearl oilsands mine in northern Alberta.

The Alberta Energy Regulator has issued a notice of non-compliance to the company after chemicals associated with oilsands tailings  were found at an off-site well at levels that exceed provincial guidelines.

Sulphates have been detected at a well that is 100 metres from the Muskeg River, a tributary of the Athabasca River. 

The chemicals are not particularly harmful in themselves, but are tracked because they are often found in high concentrations in tailings, which are toxic.