Solution Exercise 8
Location of groundwater divides in the Edwards Aquifer are controlled by location of losing streams, temporal and spatial distributions of both recharge and pumping, aquifer offsets (for the Kinney-San Antonio segment divide), fault system permeability, and the Colorado River (which is not a divide but separates the Barton Springs and Northern segments).
During droughts, divides may shift or even disappear, but can reform with increased recharge.