What describes a "Holding tank sewage system"?

A holding tank sewage system is specifically designed to store sewage temporarily without a discharge outlet. This type of system collects waste and retains it until it can be properly pumped out and transported to a treatment facility. The absence of a discharge outlet means that the sewage does not enter the ground or local waterways, making this method suitable for areas where traditional septic systems are not feasible, particularly in locations where soil conditions are not suitable for absorption or infiltration.

The other options describe characteristics of different sewage systems. For instance, systems with discharge outlets typically refer to conventional septic systems that allow liquid effluent to seep into the soil. A holding tank does not perform any treatment processes on its own, thus disqualifying it from being solely a septic tank that treats sewage. While some systems use biological processes for treatment, a holding tank does not facilitate this; it simply serves as a storage solution until the waste can be managed.