Las Vegas Valley Water District Water Waste Investigator Devyn Choltko puts a water waste violation into the computer system outside a home in north Las Vegas, Nevada, on June 25, 2024. They’re known as water waste investigators who are part of the Southern Nevada Water Authority. Las Vegas Valley Water District Water Waste Investigator Devyn Choltko records a video of a water waste violation at a home in north Las Vegas, Nevada, on June 25, 2024. By 2003, the Southern Nevada Water Authority, a not-for-profit water provider with a half dozen water collaborative agencies in southern Nevada, responded with several water conservation efforts, which included starting the water patrol. Choltko is one of nearly two dozen investigators who patrol Las Vegas every day, looking for any signs of water waste.