The Cigar Lake underground mine is the world’s largest uranium deposit. This deposit belongs to Cameco company and is located in Saskatchewan. In 2007, the mine was completely flooded due to a collapse in a gallery.
The expertise provided in this project was to find the entry of water into the mine to allow clogging. To do so, the use of tracer was the solution. The planned was to inject a tracer into the geological formation and try to trace it back in the mine using a submarine.
Michael Verreault conducted the planning of tracer tests in groundwater. However, before injecting a tracer, it was agreed to carry out tests, the temperature of the water would act as a tracer. The leak was easily identified and the mine is now in operation.