Spring water companies rarely mention "purity". Instead, they often refer to their water as being "natural", a term which might imply "healthy". But consider this. Waters drawn from polluted rivers or streams are natural, but they're certainly not healthy.
One misleading statement a spring water company can make is that its water is 100% pure. This, however, refers to the source of the water and not the absence of impurities. In other words, 100% of the water came from an underground source, but that water is not necessarily 100% free of impurities.
Finally, perhaps the most alarming fact is that many spring waters contain so many impurities that they do not even meet municipal water standards. Most spring water companies avoid issuing bottled water analysis reports - the same reports required of municipal water supplies - because of the amount of contamination that these reports might reveal.
Purified Water: Your Best Bet
The standards for purified water are the toughest in the water industry. Tested water must be proven to have a purity of 99.9%. Regulated and tested by the Food and Drug Administration (FDA), purified water is processed via a steam distillation / oxygenation process in most cases. Another process, steam distillation / ozonation, produces a water quality that is 100% pure and free of contaminants.
Today, the fastest growing segment in the water industry is purified water. Suppliers of purified water have their water tested regularly, and these test results are available upon request.
The Choice is Yours
It is no surprise that spring water companies want us to believe that spring water is pure and healthy. Their marketing tactics imply that it is! You may tend to agree with them, or you may disagree. In the end the decision is yours, but now you have a little insight into water selection and quality.
If you have a private well (as I do), there is no need to purchase drinking water. Just be sure to test your water annually. Also, HDPE Type 2 water containers can be reused several times. Just wash them with soapy water and rinse after each use. Once they become a little worn, recycle them. You can read more about reusable water bottles on CR4 in Bottled H2 Oh-No!
Resources:
http://www.msnbc.msn.com/id/5467759/
http://ezinearticles.com/?The-Truth-About-Bottled-Spring-Water-vs-Purified-Water&id=1078610
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