GEOLOGY

Detailed explanation-1: -A well dug or drilled into saturated rocks will fill with water approximately to the level of the water table. If water is pumped from a well, gravity will force water to move from the saturated rocks into the well to replace the pumped water.

Detailed explanation-2: -Groundwater can be extracted through a well drilled into the aquifer. A well is a pipe in the ground that fills with groundwater. This water can be brought to the surface by a pump.

Detailed explanation-3: -How do we get groundwater? Water in aquifers may be brought to the surface naturally through a spring, or can be discharged into lakes and streams. However, most groundwater is brought to the surface by pumping it through a well (which draws the water like soda through a straw) that is drilled into the aquifer.

Detailed explanation-4: -Pumping water from the well removes water from inside the well at first. That lowers the water level inside the well. This means that water will flow from the surrounding aquifer (higher groundwater head) toward the pumping well where the groundwater head is now lower. That is how a well gets water from the ground.

Detailed explanation-5: -This is sometimes called “mining” of groundwater. As pumping continues, groundwater recharge and discharge adjust to lower groundwater levels until a new equilibrium is reached and water levels stabilize (or the aquifer is completely exhausted if pumping exceeds total recharge).