|Regulated by the U.S. Environmental Protection Agency and standards can be enforced when violated.
||Regulated by the U.S. Food and Drug Administration and bottled water in violation of standards can still be sold.|
|Cannot have confirmed E. coli or fecal coliform bacteria.
||A certain amount of any bacteria is allowed.|
|Must be filtered and/or disinfected.
||No federal filtration or disinfection requirements.|
|Utilities must have their water tested by certified labs.
||Such testing is not required.|
|Testing results must be reported to state or federal officials.
||No reporting requirements.|
|Water system operators must be certified.
||No certification required.|
|Water suppliers must issue consumer confidence reports annually.
||No public right-to-know requirements.|
|Can cost just pennies a day.
||Can cost up to $4 per gallon.|
|Contains essential nutrients for the body such as calcium and iron.
||Natural minerals are usually removed by filtration.|
|Contains chlorine residual to prevent bacteria growth.
||No disinfectants present to kill bacteria.|