I confess that our daughter has been taking plastic bottles of water to school every day for several years. This is bad for the environment since fewer than 25 percent of plastic bottles are recycled. Also, since the plastic used to make these bottles comes from petroleum, their production contributes to our reliance on imported oil and to polluting our environment.
Bottled water is also not as good for the person drinking it. Tap water quality is closely regulated by EPA under the Clean Water Act, but bottled water is only regulated by FDA and is not subject to all the same testing requirements (although about a quarter of bottled water is tap water, so some of it does undergo the more stringent EPA regulations!) To learn more and/or to buy a bottle try the Back2Tap Web site or the Greensender Web site.