The most important starting place was to get a clear understanding of what was happening and why the interception system wasn't stopping the seepage from moving beyond it. They identified four sites where that was occurring. In each site, we compelled them to put together a unique engineering approach or strategy as the best way to enhance that interception system to ensure it was collecting the seepage. That has involved extensive trench work, and a lot of interception wells have been drilled and put in place, and we've seen some installation of French drains.
In addition to that, as we became concerned in the spring with some of the tests we were seeing at waterbody 3, they put in an extensive shallow vacuum system, right around the edge of waterbody 3, so that they could intercept closer to the surface water, which was thought to be where that waterbody might have been impacted by it.
Those systems are all operational now. The monitoring, as I've said, shows stable or declining test volumes in the area beyond that interception system, and we continue to ask Imperial to do that monitoring but to then also expand it beyond that.
From time to time, this part of the world does freeze up, and it does make it more challenging to do some testing, but we'll continue to ensure that's done. Of course, we'll do everything we can to ensure that as breakup occurs next spring we are highly in place and highly informed to keep an eye on what's happening in terms of Imperial's actions and the operations of these systems to make sure Imperial is on the job, making the enhancements work the way they need to and doing anything else that might be required if anything untoward is identified.