sludge removed from a septic tank (a chamber that holds human excreta).

The semi-liquid material that is pumped out of septic (or interceptor) tanks, consisting of liquid, scum, and sludge.

The liquid, solid, and semisolid materialthat results from wastewater pretreatment in aseptic tank, which must be pumped, hauled, treated,and disposed of properly (i.e., in accordance with40 CFR Part 503).

The organic material pumped from septic tanks.

Organic waste material collected from septic tanks.

the mxiture of solid wastes, scum, sludge, and liquids pumped from within septic tanks, pump chambers, holding tanks, and other OSS components.

The liquid and semisolid contents removed by pumping from a septic tank.

The partially treated waste store in a septic tank is called Septage. It generally consists of all the household wastes that are disposed of through a homes plumbing system that do not drain out into the soil or converted to gases by the special bacteria in the septage tank.