I'm very familiar with the Ogallalla aquifer. When the drought of 2012 hit, people were very worried about it never recovering. After several 'wet' years it appears to be fine. Mother Nature is stronger than we give her credit for
I'm not suggesting it won't ebb and flow. The issue with aquifers is that as parts go empty and stay empty for long periods of time the sand that stores the water compresses and then can never be re-expanded to be refilled. There is also the worry about what will happen if we have several "dry" years. All this to say, we don't have unlimited fresh water.
