[pbhjpbhj]

>can see replenishment of the water tables being a concern, if everyone (or a good percentage, at least) started doing so.

Used to live in a village with a well (acquifer) and pumping station but in the city I live in now, and all the surrounding towns, all the water supply comes from rainwater (via a reservoir and treatment plant) ... like, where else you going to get it from?

[ghaff]

Well, desalination notwithstanding, pretty much all water people use comes from rainfall/snowfall. It's just a matter of what combination of aquifers, man-made reservoirs, lakes, rivers, etc. are used to manage the water supply.