Areas that depend on aquifers for their water supply, including, but not limited to, KS, what

[hatrack]

3. Its already happened in some areas of KS over the Ogalalla Aquifer . . .

. . . as well in some areas of NM and TX where the aquifer wasn't that deep to begin with.



The water isn't going to run out all at once across the plains - too much variability in depth from state to state and from county to county. However, there are some areas in the states mentioned above where landowners have had to go dryland (and hope for the best), convert farmland to ranchland, or fallow.

Ironically, there's a reasonably good case for reversion to natural habitat in some locations. Renting out hunting land has become a fairly significant source of income in some counties, particularly with commodity prices dropping for the past few years.

Really good book on the topic called "Ogallala Blue" by William Ashworth.