As used in this subchapter:
(1) “Garbage” means residential garbage and trash to the exclusion of commercial and industrial refuse.
(2) “Garbage collection district” means an area in Kent County outside of the limits of any incorporated municipality, within ascertainable boundaries, and which is in the opinion of the county government susceptible of efficient and economical garbage collection pursuant to the procedures of this subchapter.
(3) “Garbage collection unit” means each improved parcel of real estate located within the boundaries of a garbage collection district and either used or intended for residential purposes.