We have our own spring and have never had ill effects, nor have any visitors and the water is very sweet. I do notice a chlorine taste in tap water elsewhere, but I am sure that the water is safe. If you are happy with the taste of your tap water, it is worth investing in a long lasting water bottle that you can refill ad infinitum, as buying water seems an expensive longterm proposition although I don't see the difference between buying bottled water, or buying a soda, - the former is healthier! Refilling the bottles the water comes in is not recommended as they can supposedly release toxins after a time.