Which type of water well is larger in diameter and typically produces low yields?

Bored wells are characterized by their larger diameter compared to other types of wells, typically using a large auger or similar machinery to create an opening in the ground. This larger diameter allows for the excavation of a wider hole, which consequently can limit the depth that can be achieved. Such wells are often found in contexts where the water table is near the surface, tapping into shallow aquifers.

Due to their construction and the geological formations they usually access, bored wells tend to produce lower yields of water compared to drilled wells, which reach deeper aquifers and therefore have greater potential for higher water production. The capacity for higher yields in drilled wells primarily stems from the ability to drill deeper and access more extensive water-bearing formations.

Shallow wells and artisanal wells also differ in construction and yield, with shallow wells generally being much deeper than bored wells and artisanal wells usually being hand-dug and more labor-intensive. However, it is the bored well's specific characteristics regarding its diameter and resultant low yield that makes it distinctive in this context.