I don't do remediation, but I develop remedial objectives for them. If you look in British Columbia, in Vancouver, they dredge the harbour almost every year. When you undertake dredging activities, there will be resuspension of sediments and increased risk during the remedial activities, and signage is put up. That's part of the process.
In this case, a risk assessment was done to inform remedial options. The remedial option based on the risk assessment was that remediation was not required. We've discussed a lot today about why that happened, and it's because the human exposure pathways were not considered.
The first thing that would need to happen at the big dock is understanding the source of the contamination to the sediments. This is downstream of a naturally occurring oil sands deposit. It's downstream of one of the largest developments, with effluents going into the river, and then it has local contamination from the wharf. You'd have to characterize and figure out what the sources are and then determine the most appropriate way to remediate, given that you're going to have a continually ongoing source from the natural oil sands and from oil sands development. This could be a situation where you have to remediate consistently or have some mitigation put in place to treat incoming waters and sediments from the lower Athabasca River.
I'm sorry; I'm not trying to contradict leadership here, but it's a complex situation where you have natural and anthropogenic factors that are contaminating the sediments. The soil and the groundwater are local and easy to remediate. The sediments in the lake are a different issue that's going to require a really robust environmental site assessment, remedial option planning and then a remedial plan to protect everyone who uses the lake and the beach area.