For the City of Saskatoon, and to a large degree the City of Regina, the water comes from the South Saskatchewan River, which originates in the Rocky Mountains. Calgary and Edmonton waters also come from the Rocky Mountains.
Treating Rural Water
The most common water treatment tool used in homes on the rural prairie is granular activated carbon (GAC) filtration. This is a treatment technique that functions by removing particles and dissolved organic material (for example: colour), and it should generate water that is better for human consumption.