Drilled wells?

Drilled wells are often characterized by their construction, which typically involves a diameter of around four inches. This size is common because it allows for the efficient installation of a casing and the use of submersible pumps to access groundwater. A diameter of four inches strikes a balance between sufficient water yield and manageable installation procedures.

The depth of drilled wells can vary widely, often exceeding 100 feet depending on the geological conditions and the depth at which groundwater is found, ruling out the notion that they are limited to being shallow. Casing is usually required in drilled wells to prevent contamination and structural collapse, which means that they do need well casing. Additionally, submersible pumps are commonly used in drilled wells to lift water from significant depths, so the idea that they cannot have such pumps is inaccurate. Hence, the characteristic of being approximately four inches in diameter aligns with the typical construction and operational features of drilled wells.