The word "hydraulic" originates from the Greek word ὑδραυλικός (hydraulikos) which in turn stems from ὕδωρ (hydor, Greek for water) and αὐλός (aulos, meaning tube), and "containment" refers to the action of keeping something harmful under control or within limits.
The hydraulic containment process is accomplished by three[2] major configurations: The set-up of the underground water pumping wells and the pumping system are subjected on the characteristics of the site and type of containment and requires an effective design and operational effort to meet the goal of cleaning.
Trees possess the features to act like living pumps as it pulls water out of the ground for its physiological process.
Plants such as willow, sunflower, okra, most of the poplars (such as aspen and cottonwood), pull a large amount of capillary water out of the ground, which can be a useful property of some pollution management efforts and environmental engineering.
With the functional water table depression created, pollutants are drawn and then taken up for an additional treatment process.