St. Ambroise, Quebec, is a site where Bennett Environmental operates what is called Récupère Sol Inc., RSI. It is another one of these high thermal oxidizer facilities. In the fall of 2004, I believe, the Quebec government issued an order for the plant to undergo some changes to its practices, because they found dioxins to be elevated in the vicinity of the plant. Obviously the plant wasn't working properly.
On November 2nd, 2006. See this statement in context.