What is an on-site sewage system (OSS)?
An integrated system of components, located on or nearby the property it serves, that conveys, stores, treats, and/or provides subsurface soil treatment and dispersal of sewage. It consists of a collection system, a treatment component or treatment sequence, and a soil dispersal component. An on-site sewage system may also refer to a holding tank sewage system or another system that does not have a soil dispersal component.