Her er en sammenbrud:
* Unsaturated Zone: This zone is above the water table and contains air as well as water. Water here is held by capillary action and doesn't freely flow.
* Vandbord: This is the upper surface of the saturated zone. It fluctuates depending on rainfall and other factors.
* Saturated Zone: This is the zone below the water table where all pore spaces in the rock are filled with water. Groundwater resides within this zone.
Aquifers are the permeable rock formations within the saturated zone that store and transmit groundwater.