I think you may be underestimating the impact. Without the aquifer you cannot sustain the current crop yield, livestock headcount, many jobs would be impacted,

I think you may be underestimating the impact. Without the aquifer you cannot sustain the current crop yield, livestock headcount, many jobs would be impacted, and cost of living will rise. These phenomenons can have a cascading impact on other sectors of the economy... not only in the states sitting on top of the aquifer, but the entire country. Perhaps it will not be a literal desert, but it will be a desert for the purposes of agriculture.