What term describes the amount of water a well produces for each foot of drawdown?

• A. Yield
• B. Specific Capacity
• C. Flow Rate
• D. Water Output

Answer: (B)

The correct term that describes the amount of water a well produces for each foot of drawdown is specific capacity. Specific capacity is calculated by taking the yield of the well—the volume of water it can produce—and dividing it by the drawdown, which is the difference between the static water level and the pumping water level in the well. This concept is crucial in hydrogeology and water resource management, as it helps assess the efficiency and performance of a well based on how much water it can provide in relation to the amount of drawdown caused by pumping.

Knowing the specific capacity allows water operators to make informed decisions about well development and management, as it provides insights on how sustainable the water source is under various pumping conditions. This metric is particularly valuable when evaluating the potential impacts of well extraction on water levels and surrounding ecosystems.