Apump is not used to raise groundwater to the surface in areas where artesian wells are located because the water in artesian wells is

In Artesian wells the water is trapped in a porous material such as sand and then it flows, I guess

Answer: Under high pressure

Explanation:

Artesian well is constructed whenever there is high pressure in the aquifer.An aquifer is defined as a geologic layer which has the ability to hold water.In artesian well, the ground water reaches to the surface on its own as the water in this area is under high pressure. Thus, we do not need a pump to bring up the water to the surface in such areas and the well that is constructed is the artesian well.