I don’t know about the particular report (there have been hundreds if not thousands), but water has been an issue in Arizona and definitely Tucson, since the mid-1970s if not earlier (we moved there when I was a kid in 1974 and water conservation was big back them and that was with only about 10 years left of ground water available; the city has grown dramatically since). They’re out of ground water and the vast majority of the state relies on the Colorado River water shipped down in open aqueducts from northern AZ (just imagine the evaporation in 100 degree temps which is just a standard summer day temperature) and that water is reliant on the availability of water in the Colorado River west of Lake Mead, which is at a dangerously low level. It’s so law that in large areas of the Colorado, rafting is no longer done as the water levels are dangerously low. On top of that the farmers with orange and almond groves, vast cotton fields, farmers, and alfalfa growers (IN THE MIDDLE OF THE DESERT!) generally get access to the water first so the shortage is magnified by growing water thirsty plants in the middle of the desert. And the alfalfa is for export to Saudi Arabia for horse feed. The temperatures are climbing, water is scarce, and the place is overflowing with people. About the only decedent sign is in many areas everyone has changed from their overwatered lush green lawns to more native landscaping, but the state is dotted with bright green golf courses that are watered year round.