Definitions for "Observation well"
A well drilled in a selected location for the purpose of observing parameters such as water levels or water chemistry changes.
A well drilled solely for the purpose of monitoring a potential or an existing source of contamination.
An excavated well or vertical borehole used to observe changes in seepage flow through or beneath dams during filling and drawdown.
A perforated pipe inserted into the soil to record the level of the water table in relation to the soil surface.
A pipe that is used to observe the filtration of water by the underlying soils.
Keywords:  underground, storage, see