Untreated water from streams, rivers, lakes, or underground aquifers which is used to supply private wells and public drinking water.

Water in its natural state, prior to any treatment for drinking.

The supply of water for a water utility. Source water is usually treated before distribution to consumers, but some groundwaters are of such a quality that they can be distributed untreated.

Untreated water (i.e., raw water) used to produce drinking water.

also called "tap" water – It is the water used to fill or refill the pool or spa.

See raw water.

Source water refers to water in its natural state, before any treatment for drinking (i.e. lakes, streams, ground water).

untreated water that is supplied to a home or business; source water is usually best for outdoor applications like watering lawns