On average American drinks 28 gallons of bottled water a year. Most Americans drink bottled water because they think tap water is not safe. Municipal water has been in the news lately because of the lead getting into the water supply. Lead along does not make bottled water safer. Data shows that 25% or more of bottled water is tap water. Sometimes more treated than tap water. This means that bottled water may be just as likely as tap water to contain contaminants that include infectious organisms, pesticide residue and metals. The metals include lead.