AP BIOLOGY

Detailed explanation-1: -A well tapping a confined aquifer. Water in the well rises above the top of the aquifer under artesian pressure, but does not necessarily reach the land surface; a flowing artesian well is a well in which the water level is above the land surface.

Detailed explanation-2: -Well: a hole dug or drilled into the earth’s surface to reach groundwater stored in aquifers.

Detailed explanation-3: -Borehole: the hole drilled to construct a well. Most boreholes for domestic wells in Montana are only slightly larger than the well casing. Casing: Steel or plastic pipe placed in the borehole to keep it from collapsing.

Detailed explanation-4: -When a water-bearing rock readily transmits water to wells and springs, it is called an aquifer. Wells can be drilled into the aquifers and water can be pumped out.

Detailed explanation-5: -Types of Wells According to the United States Environmental Protection Agency (EPA), there are three basic types of private drinking wells dug, drilled, and driven .