We've clearly asked at meetings for them to start testing all these things, but because of the high cost of testing here and there, they refuse to do so. Therefore, they just do the regular thing. They just check the common occurrence of what they consume.
Only when there's a problem will Health Canada step in, put a ban on drinking water from the taps, and say that until further notice you have to boil your water in the community. It's happened a few times in previous years.