Under which condition would a lowering of the water table most likely occur?

Under the augmented dry spell over the revive zone condition would a bringing down of the water table in all probability happen. 
The most serious result of unreasonable groundwater pumping is that the water table, beneath which the ground is immersed with water, can be brought down. For water to be pulled back starting from the earliest stage, must be pumped from a well that spans underneath the water table.

It conforms what ever surface its in.

It shows that the experiment is designed properly.