Although bottled water available in Canada is generally of good quality, it is not necessarily safer or healthier than water from municipal supplies.
The sale of bottled water is not licensed in Canada; however, the Health Protection Branch makes spot checks occasionally of both domestic and foreign bottled water. In addition, local Health Units do regular bacterial testing on all bottled water distribution located in their district.
Municipal water supplies are checked for 100 or more substances. Only three substances must be checked in bottled water. They are bacteria content, fluoride and total dissolved solids (magnesium, iron, sodium)