Spring water originates in an underground formation from which it flows naturally to the earth’s surface. Spring water must be collected only at the spring or through a borehole tapping the formation feeding the spring.
Artesian well water comes from a well that taps an aquifer—layers of porous rock, sand and earth that contain water—which is under pressure from surrounding upper layers of rock or clay. When tapped, artesian pressure pushes the water above the level of the aquifer. According to the EPA, there is no guarantee that artesian waters are any cleaner than ground water from an unconfined aquifer.
