I work in the design and construction field for the past 20+ years. Phx and metro area water infrastructure is not as solid as you might like to think. In my experience in submitting plans for new or even just tenant improvement projects water system issues is not a new thing, it's been going on behind the scenes for at least 2-3 decades.
Water is life - especially in the desert - whether we want to admit we live in a desert or not.
Look at your or your neighbor's landscaping to see if you realize you live in a desert. The truth will set you free...