Many informed customers choose bottled water because they are concerned about the quality of tap water, which is many times riddled with fluoride and pharmaceuticals. Sadly, we are now learning that in many cases, bottled water is actually not any better than tap water.

Over the years, an advocacy group called, "Corporate Accountability International" has been checking the contents of bottled water and pressuring companies to stop their false advertisement.

Aquafina is actually one of the top selling water brands in the world, and may see a slide in sales as a result of these new findings.

PepsiCo representative Michelle Naughton said in a recent statement that, "If this helps clarify the fact that the water originates from public sources, then it's a reasonable thing to do."

The corporate accountability group is now looking to Coca-Cola's Dasani bottled water for false advertisement. However, Dasani denies that their product is just tap water.

"We don't believe that consumers are confused about the source of Dasani water. The label clearly states that it is purified water," Coca-Cola spokeswoman Diana Garza Ciarlante said.