33.1.3. Rock Properties Affecting Groundwater Storage

Try these first

1. 1.

   Define porosity.

   Hint

   Think about the spaces in the rock.

2. 2.

   What is permeability?

   Hint

   Consider how water moves through materials.

3. 3.

   What does porosity indicate?

   • The ability to transmit water
   • The volume of void spaces in the rock
   • The amount of water that can drain under gravity

   Hint

   Think about space in materials.

4. 4.

   True or False: High permeability means water flows slowly through a rock.

   • True
   • False

   Hint

   Consider how easily water moves.

5. 5.

   Given a rock with high porosity but low permeability, describe potential issues for groundwater extraction in agricultural settings.

   Hint

   Consider crop needs for available water.

6. 6.

   Evaluate a scenario where specific yield is low in an aquifer supplying a community's drinking water. What implications does this have for the community?

   Hint

   Think of daily water consumption patterns.