The following words and phrases when used in this subchapter shall have the meanings given to them in this section unless the context clearly indicates otherwise:
"Community sewage collection or disposal system." All or part of a device or devices installed on any privately or publicly owned parcel of land intended to treat or dispose of the sewage or equivalent volume of domestic sewage from two or more residences, buildings or occupied parcels of land, or any system of piping used in collection and conveyance of sewage on private or public property.