Aquifers.

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Presentation transcript:

Aquifers

What is an Aquifer? An aquifer is a body of saturated rock through which water can easily move. The amount of water that rocks or soil can hold depends on their porosity and permeability.

Porosity Porosity – the capacity of rock or soil to hold water.

Permeability Permeability is the rate at which water moves through rocks or soil.

Porosity & Permeability

Zones of an Aquifer Zone of saturation : a layer of the aquifer in which all of the pore space is completely filled with water Water Table: the upper region of the zone of saturation Zone of aeration : region of an aquifer above the water table where pore spaces are mostly filled with air

Contamination of Aquifers Several things will impact the health of an aquifer: Landfills Farming Gas stations Septic tanks