(Ken Ritter | The Associated Press) Sprinklers water grass at a park on Friday, April 9, 2021, in the Summerlin neighborhood of Las Vegas. The desert city wants to become a model for restraint with a first-in-the-nation policy limiting water use by banning grass that nobody walks on. Parks would not be included, but Las Vegas area water officials are asking the state Legislature to pass a law banning "nonfunctional turf" in street medians and common areas of communities and office parks.