Definitely Jeff… Had a thread on this site about 5 years ago about gray water systems. That should have been well thought out about oh…. 40 or 50 years ago and should have been mandated for builders to install them for residential landscape irrigations.
Also agreed with nsr. In fact regardless of the typical or atypical nature of the weather patterns, fresh water (as it is gathered and distributed now) can be essentially considered a finite resource. So the weather patterns don’t really matter. Population growth will exhaust the supply eventually. At that point water supply will come from the ocean.
California is at the front of the line but the entire midwest is not far behind. There is a large aquafir under much of the midwest that is being consumed without adequate replenishment.