Thanks to Donn Gaede for forwarding this to me.
"New maps indicate that many countries currently designated as "water scarce" have substantial groundwater reserves."
Here is the BBC article:
Water under africa???
Here is the article pdf:
Its not available for everyone and much of it is not extractable.
The good news is: "ground water is indicated to have a residence time in the ground of 20 to 70 years."