The Environmental Working Group has a suggestion to help the environment, and our own wallets: drink water from your sink, not the store-bought bottles.
According to them, a lot of tap water is exactly the same as the stuff you pay a premium for. The premium is supposed to buy you purity of course, but the group says they have found fertilizer residue, chemicals, and other unsightly things in bottled water from major brands.
They also make a good point that while tap water is regulated by the federal government, bottled water is mostly unregulated. The chemical composition of bottled water is hardly ever made public, but tap water has detailed public records.
I'm not making a judgment call here, but if you can find out whether your tap water is safe, it may be worth it to buy a Nalgene and be set for life!
– Andy
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