It's very likely in this area, and that was a deficiency of the studies. They never identified the source of the contamination of the sediments because they never achieved delineation.
When you get access to the 2017 reports, you will see site characterization maps where they took soil samples. Where they're red, they're over guidelines. Where they're green, they're under guidelines. They are always red. No matter how far they went out in those plans, sediments were never clean or safe or below the guidelines we use in Alberta. They have to figure out why that is before they spend a lot of money remediating. It doesn't mean it doesn't need to happen, but they have to determine the source and the best path forward.