34.3.2. Confined Aquifer (Artesian Aquifer)

Try these first

1. 1.

   What is a confined aquifer?

   Hint

   Think about what 'confined' means.

2. 2.

   What is artesian flow?

   Hint

   What happens when you shake a soda can and open it?

3. 3.

   What surrounds a confined aquifer?

   • Aquicludes
   • Permeable layers
   • Aquifers

   Hint

   Think of what restricts water flow.

4. 4.

   True or False: Artesian wells do not need to pump water to bring it to the surface.

   • True
   • False

   Hint

   Recall what happens when pressure is applied.

5. 5.

   A town extracts water from a confined aquifer at a rate that exceeds its recharge ability. Discuss the long-term consequences of this action.

   Hint

   Consider what happens to pressure in an aquifer.

6. 6.

   Given that a confined aquifer has a hydraulic conductivity of 5 m/day and a saturated thickness of 20 m, calculate its transmissivity.

   Hint

   Recall the formula for transmissivity.