Seepage
In soil mechanics, seepage is the movement of water through soil. If fluid pressures in a soil deposit are uniformly increasing with depth according to u = ρ w g z w {\displaystyle u=\rho _{w}gz_{w}} , where z w {\displaystyle z_{w}} is the depth below the water table, then hydrostatic conditions will prevail and the fluids will not be flowing through the soil.