5.2. Purpose

Try these first

1. 1.

   What is the difference between the zone of aeration and the zone of saturation?

   Hint

   Think about what each zone holds.

2. 2.

   Define porosity in the context of aquifers.

   Hint

   Focus on the empty spaces in the material.

3. 3.

   What describes the zone of saturation?

   • Unsaturated zone
   • Soil water
   • All soil pores filled with water

   Hint

   Think about where groundwater is stored.

4. 4.

   True or False: A confined aquifer is surrounded by impermeable layers.

   • True
   • False

   Hint

   Consider how water is trapped in these aquifers.

5. 5.

   A farmer seeks to understand how much water they can extract sustainably from a confined aquifer with a known transmissivity of 15 m²/day. Evaluate and justify their potential daily extraction rate based on a transmissivity-based calculation.

   Hint

   Reflection on average recharge values is needed.

6. 6.

   During an aquifer test, water levels fall by 2 meters in well A over a pumping duration while well B, located 50 meters away, shows a drawdown of 0.5 meters. Calculate the transmissivity of this aquifer.

   Hint

   Remember to apply log rules and keep your units consistent.