This process occurs in the Adelaide region, but the volume could not be quantified due to the lack of data.
The dominant direction of groundwater flow in the Adelaide region is from the recharge area in the fractured rock aquifers of the Mount Lofty Ranges towards the St Vincent Basin in the west (Ellis and Fox 2004). The St Vincent Basin, including the major sedimentary aquifers, extends under the sea with only the shallow unconfined aquifers interacting with the sea at the coastline (Hodgkin 2004).