dont drink it please my advise to u...
becos i know two or three ppl in my surrounding who drank tap water and after 2-3 years had kidney stone....
i don't know whether the reason is drinking of tap water but i advise u not to go for it. as i drink very less water but bottled water and i m here since 4 years but there is no prob as such... but those ppl would have drunk more water than me ofcourse but since it was tap water they had problem

anyhow its my logic and my advise ... rest is left to u