Well point

Well Point
A hollow vertical tube, rod, or pipe terminating in a perforated pointed shoe and fitted with a fine-mesh screen.
Wellhead Protection Area ...

Well Point: Also referred to as sand points, gravel points, are used in shallow permeable unconfined (usually) aquifers generally less than 30 feet deep. Well points consist of a short length of screened pipe with a sharp point on the bottom end.

See also: Utility, Water well, Condition, Soil, Watershed