Extension Connection

Water-What's in a Name?
By Janet Hackert, Nutrition Specialist

When I was young and it would rain at the beach or swimming pool, my father used to say, “water, water everywhere and not a drop to drink!”  In fact, these days there are many ways to get some good, clean water to keep us hydrated. But what are the differences between the various bottled waters and are they any different than good, old tap water?

Tammy Roberts, Nutrition and Health Education Specialist with University of Missouri Extension, has some simple to understand descriptions of various types of bottled water.

Artesian well water is water that comes from an underground aquifer. An aquifer consists of layers of porous rock, sand and earth that contain water. This water is under pressure from the upper layers of rock and clay. A well that taps into the aquifer releases that pressure and pushes the water up above the level of the aquifer. Though some believe that this artesian well water is extra pure because the layers of rock and clay interfere with the movement of contaminants, the research does not confirm its purity.

Mineral water is water from an underground source that contains 250 parts per million of dissolved solids. These solids are naturally occurring and contain minerals and trace elements.

Spring water is water that originates in an underground formation and flows naturally to the surface.

Well water comes from a hole drilled or bored in the ground that taps into an aquifer.

Bottled water is recommended in certain cases, such as on a camping trip, during an emergency or after a flood, when well water, public drinking water, or other sources may be contaminated. The Food and Drug Administration (FDA) regulates bottled water so it is subject to the FDA’s food safety and labeling requirements. Tap water is regulated by the Environmental Protection Agency and is tested regularly for safety. According to Ms. Roberts, “All municipal water systems serving 25 or more people are tested for up to 118 chemicals and bacteria.” So both bottled water and local drinking supplies are safe water sources.

(Written April 11, 2008)

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Extension Connection Barb Ubben, Web Manager harrisonco@missouri.edu Last revised: 05/25/04