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LAS VEGAS — About two dozen investigators patrol neighborhoods throughout Las Vegas every day searching for signs of wasted water. They're known as water waste investigators who are part of the Southern Nevada Water Authority. For more than 20 years, they have been helping conserve water in the growing desert city.

Devyn Choltko is one of the investigators with the Las Vegas Valley Water District, which is part of SNWA. The authority is comprised of several local water districts in southern Nevada that all work together to manage water resources. On an early July morning, she stops her patrol car in a neighborhood where water flows onto the street.

"Water Waste Investigator 9393," Choltko reports into her cell phone to r

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