Yes, it's less a contaminated sites issue than a health and safety issue, but nevertheless, we do maintain lists of agents and any toxic substances that we work with that could be harmful.
As an institution, we have responsibilities under the Canada Labour Code to ensure that all of those are well identified and well managed, and that there are processes and protocols for dealing with those chemicals, as well as storing them. There are processes in place that we follow on all of our bases across the country.