Based on its investigation, the EWG assigned “grades” to the top waters on the market, with an “A” being the best and “F” being the worst. The criterion for being graded was the company’s transparency, its water source, purification process, testing procedures, and any advanced treatment that the bottled water is put through. No brand scored an “A”. Only four brands of bottled water scored a “B”. Surprisingly, two of the most popular bottled water brands did not take home top marks – Dasani Purified Water received a grade of “C” while Aquafina Purified Drinking Water scored a grade of “D”.
These are just a few of the many legitimate concerns about bottled water and human health. For these reasons and more, it is invariably a better option (and a less expensive one) to filter your own water at home, and to invest in a portable bottle so that you can take your water with you wherever you go.