Which type of well is most commonly used in public water supply?

Drilled wells are the most commonly used type of well in public water supply systems because they can reach deeper aquifers that typically yield larger quantities of water. These wells are created by boring a hole into the ground using drilling equipment, allowing access to groundwater sources that are often located at significant depths. This capability makes them particularly suitable for meeting the demands of public water supply, providing a consistent and reliable water source for large populations.

Additionally, drilled wells can be constructed with various casing materials, enhancing durability and preventing contamination from surface water. In contrast, other well types may not provide the same level of water quantity and quality necessary for public consumption, making drilled wells the preferred option for serving communities effectively.