Yes, we have one example where there was a spill of PCBs in the Maritimes. The company itself reported the incident in February 2007. In May 2007, three months later, the department decided an investigation was warranted. In November of that year, nine months later, the decision was made to take no enforcement action because by that time the evidence would have disappeared.
On December 13th, 2011. See this statement in context.