3. Aquifer Properties

Try these first

1. 1.

   What does porosity refer to?

   Hint

   Think about how much empty space is in a material.

2. 2.

   Define specific yield.

   Hint

   Consider how much water can flow out of an aquifer.

3. 3.

   What is porosity a measure of?

   • Water flow
   • Void space percentage
   • Soil depth

   Hint

   Remember what porosity indicates about a rock's ability.

4. 4.

   True or False: Specific yield is the total amount of water an aquifer can hold.

   • True
   • False

   Hint

   Think of how much can flow out versus total storage.

5. 5.

   Given an aquifer with a porosity of 30%, calculate the volume of water it can hold if the total volume is 10,000 m³.

   Hint

   Use the porosity percentage to find the water volume.

6. 6.

   If a pumping test reveals a drawdown of 2 m in a well and the storage coefficient is 0.05, what is the volume of water released for an area of 500 m²?

   Hint

   Remember the formula for storage coefficient!