Deep trench definition
Deep trench means any excavation into the earth that is longer than it is wide, extends into a permeable soil stratum, but not into a subterranean water-bearing stratum, is intended to accept and dispose of septic tank effluent, and the bottom of which terminates more than five feet below ground surface.
Deep trench means a soil absorption system that uses a trench, the vertical walls of which form the infiltrative surface area;
Deep trench means a conventional soil absorption system that
More Definitions of Deep trench
Deep trench means a trench having perforated pipe in which the trench side wall and bottom area are used to calculate the absorptive area in the system design. At least 2 inches of gravel/stone covers the pipe and extends throughout the depth of absorptive side wall to the trench bottom.