Spring water elixir of life?

Today I toured a spring water bottling plant. I was invited by the owner after he read the small piece I had included in my Weight Loss book about the importance of drinking water. It was a most interesting tour. I was thinking that they simply got a pump and filled the bottles. But they do over a hundred different tests each day on the water to check for any contaminants. It can happen that on odd days certain contaminants- although not harmful can cause a slight taste to the water. In such cases they will in fact close the bottling of the water until it clears up. Another fact is they do tests on the actual plastic bottles. Even though the plastic is double checked by the suppliers- they will still conduct further tests to check the plastic is as it is supposed to be. I asked the question about re-using plastic bottles. I am told they do not recommend people refill bottles of water. The reason being, that over time you can get bacteria or algae growth, unless you sterilise the bottle everyday. However one problem with this is that the process of sterilization could breakdown the plastic and leech harmful chemicals into your water.
During vedic times both spring and the natural clear waters from the mountains were used as both for general health and for ayurvedic medicine uses.  It is a common fact that chronic dehydration is a worldwide problem and would urge everyone to drink drink drink water!