The downward movement under the influence of gravity movement of water under hydrostatic pressure through the interstices of the rock or soil.
the rate at which water flows or trickles through porous soils, as determined by a percolation test.
The rate of movement of water under hydrostatic pressure down through the interstices of rock, soil, or filtering media except movement through large openings, such as caves.
A measure of the permeability of soils reflected in minutes per inch
The rate at which water moves through saturated granular material, such as soil.
Downward movement of water through a soil profile.
The rate, usually expressed as inches per hour or inches per day, at which water moves through soil.
The speed at which water is absorbed into the ground surface. It is measured in millimetres per hour.
Downward movement of water into a soil, measured by the rate at which the water level drops in an augured hole.
The rate at which liquids introduced at surface sink thru the subsoil, measured in time per vertical distance. If the percolation is too slow, the effluent may accumulate at surface creating a pond. If the percolation is too fast, the effluent may reach a water well or property boundary without sufficient dilution. A percolation test is normally required prior to installation of a water treatment system, and special regulations may apply for the location of the discharge area.
The maximum rate at which water will flow into the subsoil from the top soil under specific conditions expressed in mm/hour or mm/day.