(AP Photo/Ken Ritter) — Sprinklers water grass near a street corner Friday, April 9, 2021, in the Summerlin neighborhood of northwest Las Vegas. A desert city built on a reputation for excess wants to become a model for restraint with a first-in-the-nation policy limiting water use by banning grass that nobody walks on. Las Vegas area water officials are asking the state Legislature to pass a law banning “non-functional turf.”