If I may say so, detection is not that costly; remediation is.
I'll give you an example. If we know the source of a water system, it generally costs $1 million to $2 million a year, depending on market rates, to remediate that place and solve the problem at the source.
If we're talking about continuous water generated by a landfill, it's per year. If it's a remediation, you take the soil, clean it up or burn it, and then you solve the water problem, and there's no more PFAS. In general, that would cost $1 million to $2 million. However, if we act downstream, for an extended water system it can cost at least $1 million a day, in general. So that's $1 million a year on a one-time basis versus $1 million a day downstream.
These figures could be applied to the water treatment plant in Montreal, for example. Not a lot of industries use PFAS on the Island of Montreal, but some landfills have used them in the past. We're treating at the source, as opposed to at the Jean-R.-Marcotte treatment plant for $1 million a day. I did the math.
Don't take me at my word, because that's an image, but we are probably in that ballpark.