Edible Aquifers

What is an aquifer?

• Any layer of rock or sediment with spaces that hold water, and through which significant quantities of water can move

• Ex.– Sand and gravel layers– Fracture systems in brittle rocks– Cavities in easily dissolved rock, such as limestone

What is groundwater?

• Water contained in aquifer• Used for drinking, recreation, industry, and

growing crops• Obtained by digging wells

Confining Layer

• Geologic material with little or no permeability

• Water does not pass through this layer or at a rate of movement is extremely slow

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