I’ve avoided bottled water as much as I can for years (I will only drink from a plastic water bottle when it is offered to me in certain situations) due to the waste it produces from the packaging, shipping, etc. and the sheer ridiculousness that we spend our money on something we can get for free from our own sinks (or in the case of my apartment, our monthly water bill is $8 – still a bargain, though)! I found this a few minutes ago, which sums up why I discourage the consumption of bottled water. Plus, this diagram is fun to look at!
PS: If you’re really concerned about the ‘cleanliness’ of your local water, invest in a faucet water filter! The cost of the filter is much, much less than the cost of hundreds of water bottles you may consume in a year.