Certainly. The risks are both compounded. You can have environmental risks and health risks in combination. Of course, the risks vary depending on the site and location. What we found and reported is that they have a process in place of establishing that, assessing them, and doing the risk rating. When you look at the risk rating—high priority, medium priority—that reflects a compound assessment of those things.
In terms of commenting on the particular types of contaminants, in our report we put out the general information about the types of contaminants in the sites and their relative prevalence. We didn't look at individual sites nor all the ramifications of individual sites.