127 



Recharge rate W 



111 mil 1 iiit 



Ground 

 surface 



Ocean 



Interface 



Fig. 8.6. Freshwater Lens Under a Circular Oceanic Island Under Natural 

 Conditions (reprinted with permission from D. K. Todd, 

 Groundwater Hydrology , copyright 1980, John Wiley &. Sons, 

 Inc.). 



