The local definition of on-site sewage system shall in its entirety read as follows:

Any system of piping, treatment devices, or other facilities that convey, store, treat, or dispose of sewage on the property where it originates or on adjacent or nearby property under the control of the user where the system is not connected to a public sewer system. However, relative to the creation of new lots, all such piping, treatment devices or other facilities that convey, store, treat, or dispose of sewage, including replacement systems, shall be located within the boundaries of the lot where the sewage originates.