The water in Las Vegas consistently meets and exceeds EPA standards and beats most other major cities when examined for contaminants.
http://www.lvvwd.com/assets/pdf/wq_rpt08_treatment.pdf
Well water is much more likely to be contaminated than Las Vegas water which comes primarily from Lake Mead via the Colorado river and Hoover Dam. I think Penn and Teller had a good bulls!hit on this.
Yeah, I read tapwater conspiracies all the time, mostly from folks with something to sell.
My beef with Vegas, water-wise, is just its mere existence. Seems to me, no matter how much recycling you do, creating a large city in the desert like that has to use up a goodly number of gallons a year that aren't going back into the river.
But hey, perhaps it's no different for cities on rivers. For all I know it makes no difference.
I don't buy into environmental extremism, but I have to admit that environmental apocalypse is my Achilles heel as far as irrational thinking goes.
Of course, I grew up in an environment of End Times theology, so there's a certain degree of paranoia that goes very deep.
And being from a milltown, I'd drive thru Atlanta and think "This can't last. It just can't last." I'd see the buildings and the lights and all I could think of were the connections, the pipes sucking water out of the rivers, the wires pulling power from coal plants that were tearing down the mountains.
It overwhelms me and scares me, and there's a part of me that still is convinced that this can't go on much longer.