Water

Isn't it something how today most of us carry around bottled water. When I was a child we drank out to the kitchen faucet. Now some think that it is not even safe to do that. I know I usually have a bottle sitting by me, but I have to wonder, is it really safe at all? They say the plastics are not safe. That a bottle sitting in heat will release toxins into the water. Then we drink it down. What today is really safe?