I don't think so. We get a large percentage of the Colorado River water via the CAP Canal and even when drought had substantially lowered Lake Mead and other lakes around the edges of the state we had no water restrictions like CA.
Some of the other local lakes are fed by 2 river systems from the high country, If you saw on the news this week about the several feet of snow in Flgstaff this week some of that will find it's way here - it's 2+ hrs. from my house. I don't follow it but the last time I saw the storage aquifers under Phoenix mentioned they were 80% full and filling.
Water Mgmt is a very big deal here, one of the two power companies manages all the dams and the canal systms in town,
IDK where Tucson gets it's water. It's ringed by mountain ranges so likely some is run-off.
Understand that this is a desert, If I drive 5mi north or west I'm in it. I have grass but desert land scapimg is popular here also.We have a lot of pools - probably 10 on my block alone, And a lot of golf courses - probably close to 100.