practices. There is one person in charge of regulating bottled water across the country. Between 60% and 70% of all bottled water is produced in state lines and the FDA can only regulate interstate commerce. Therefore 60% to 70% of bottled water goes completely unregulated in the United States. Standards of identity define types of water for labeling purposes: To be called ground water, the water must not be under the direct influence of surface water. Water containing more than 250 parts per million of total dissolved solids is mineral water. Artesian water comes from a well tapping a confined aquifer in which the water level stands at some height above the top of the aquifer; it may be collected with the assistance of external force to enhance the natural underground pressure. Water that has been produced by distillation, deionization, reverse osmosis or similar processes is purified or demineralized water. Sparkling water contains the same amount of carbon dioxide that it had at emergence from the source, although it may be removed and replenished in treatment. Spring water must be derived from an underground formation from which water flows naturally to the Earth's surface. Sterile water meets the requirements under "sterility tests" in the United States Pharmacopoeia. Well water is water that has been removed from a hole bored or drilled in the ground which taps into an aquifer. Standards of quality regulate acceptable levels of the water's turbidity, color and odor, according to sample analysis. Exemptions are made according to aesthetically based allowable levels, and do not relate to health concerns. For example, mineral water is exempt from allowable color levels. See also List of bottled water brands Drinking water supply and sanitation in the United States References External links Environmental Protection Agency Water Health Series: Bottled Water Ask Pablo - "Cost of Fiji Water" - an article which triggered controversy Bottled water Water supply and sanitation in the United States