Fresh water isn't a renewable resource.
Yes, it is. It isn't necessarily where people want it--and perhaps you missed my parenthetical comment about Texas, which was not meant as a joke--but the total amount of water on the planet is not diminishing. It's easier to clean up water than it is to go on indefinitely taking up land to bury poopie disposable diapers.
I agree with you about the fountains in Las Vegas. I also remember when people moved to the Southwest to escape the flora and climate of the Northeast and Mid-Atlantic, and instead they've just replicated that flora in the Southwest (lawns, plants not native to the area), and it takes water to do that. That was just plain stupid.
But ill-advised and stupid misuse of water resources by ill-advised and stupid people does not mean that water is not a renewable resource. As long as rain continues on the planet, water will be a renewable resource.