Are aquifers and underground rivers and streams located only in certain places...or are they everywhere?

Question

Are aquifers and underground rivers and streams located only in certain places...or are they everywhere?

Answer 1

They are everywhere that rivers, lakes and other streams are located!!

Answer 2

Go to the following link and see some amazing thermal images of groundwater upwellings within river systems. Fish use groundwater for spawning and surviving winters.

Groundwater needs to be protected from development and pollutants.  This imaging application will allow environmental concerns to be seen so professionals make informed decisions. http://www.thermoguy.com/groundwater.htm...

Answer 3

only in certain places.

Answer 4

they are everywhere  but only in certain locations  everywhere

Answer 5

Only in certain places.

Florida is a good example of where aquifers are common.  A typical aquifer consists of a layer of permeable rock with an impermeable layer of rock above and below it.  These three layers are curved.  See diagram at:

http://images.google.com/imgres?imgurl=h...

Aquifers are often found in areas that demonstrate Karst topography.

Karst topography is found in areas where limestone occurs near the Earth’s surface and is characterized by sinkholes, caverns and paucity of surface streams. Dissolution of limestone leading to formation of karst topography is facilitated in areas with high-rainfall, abundant vegetation, and fractured limestone. Karst topography is found in Indiana, Kentucky and Florida.

For an alphabetical list of principal US aquifers, go to:

http://capp.water.usgs.gov/aquiferBasics...

The above link gives the name of the aquifer and the name of the state in which it is found.