In the Las Vegas area, ornamental lawns are already banned, swimming pool sizes are limited, almost all water inside homes is recycled, "water cops" patrol for leaks and fountains on the Las Vegas Strip use reclaimed water. Water agencies in Southern California, Phoenix and Salt Lake City joined last year in widening calls to rip out thirsty turf. The new law pushes the region ahead of other places in the U.S. West in efforts to crack down on water wasters. But it's not a first. A water district serving homes in a celebrity enclave near Los Angeles threatened last year to slow deliveries to a trickle for wealthy customers who find monetary fines no deterrent to busting their water budgets.