Editing Water supply network (section)

==Water extraction and raw water transfer==
{{main|Water abstraction|Water transportation}}

[[Raw water]] (untreated) is from a [[surface water]] source (such as an intake on a [[lake]] or a [[river]]) or from a [[groundwater]] source (such as a [[water well]] drawing from an underground [[aquifer]]) within the [[Drainage basin|watershed]] that provides the [[water resource]].

The raw water is transferred to the water purification facilities using uncovered aqueducts, covered tunnels or underground [[water pipes]].