Experts Say Scottsdale Could Lose Majority of Colorado River Water Supply in Near Future

Scottsdale could lose as much as 80% of its Colorado River water supply in the coming years, according to an expert who spoke at a community water forum Monday night — a warning that left many residents concerned about the city’s long‑term water security.

Roughly 70% of Scottsdale’s municipal tap water comes from the Colorado River, a source that has been under increasing strain from drought, population growth, and shrinking reservoirs. That dependence, experts said, makes the city especially vulnerable.