How is it that we are buying…

How is it that we are buying water in places like Ottawa that have excellent drinking water? The supermarkets should not be selling bottled water in areas that can turn on the tap.
I recognize that some areas do not have clean drinking water and thus people need to buy bottled water. But there is ample evidence that bottled water contains toxins (leeched from the plastic), especially if the water has been a long time in the bottle.
Urge the government to ban Nestle taking municipal water and selling it for a huge profit! (And adding plastic to the pollution problem)