In this subtitle the following words have the meanings indicated. “Community sewerage system” means a publicly or privately owned sewerage system that serves at least 2 lots. “Community water supply system” means a water supply system that serves at least 2 lots. “County plan” means a comprehensive plan for adequately providing throughout the county, including all towns, municipal corporations, and sanitary districts in the county, the following facilities and services by public or private ownership: Water supply systems; Sewerage systems; Solid waste disposal systems; Solid waste acceptance facilities; and Systematic collection and disposal of solid waste, including litter. “County plan” includes a revised or amended county plan. “Individual sewerage system” means a sewerage system that serves only 1 lot. “Individual water supply system” means a water supply system that supplies water to only 1 lot. “Litter” means any: Waste material; Refuse; Garbage; Trash; Debris; Dead animal; or Other discarded material. “Lot” means a parcel of land, including a part of a subdivision, that: Is used or is intended to be used as a building site; and Is not intended to be further subdivided. “Multiuse sewerage system” means a sewerage system that: Serves only 1 lot; Serves a number of individuals; Has a treatment capacity of more than 5,000 gallons a day; and Is not publicly owned or operated. “Multiuse water supply system” means an individual water supply system that: Has the capacity to supply more than 5,000 gallons of water a day; and Serves a number of individuals. “Proposed county plan” means a county plan that: Has been adopted by the county governing body; and Has not been approved by the Department. “Proposed county plan” includes any proposed amendment or revision of the county plan. “Sewage” means any human or animal excretion, street wash, domestic waste, or industrial waste. “Sewerage system” means: The channels used or intended to be used to collect and dispose of sewage; and Any structure and appurtenance used or intended to be used to collect or prepare sewage for discharge into the waters of this State. “Sewerage system” includes any sewer of any size. “Sewerage system” does not include the plumbing system inside any building served by the sewerage system. “Solid waste acceptance facility” means any sanitary landfill, incinerator, transfer station, or plant whose primary purpose is to dispose of, treat, or process solid waste. “Solid waste disposal system” means any publicly or privately owned system that: Provides a scheduled or systematic collection of solid waste; Transports the solid waste to a solid waste acceptance facility; and Treats or otherwise disposes of the solid waste at the solid waste acceptance facility. “Solid waste disposal system” includes each solid waste acceptance facility that is used in connection with the solid waste disposal system. “Subdivision” means any division of a tract or parcel of land into at least 2 lots, for the purpose of sale or building development. “Subdivision” includes any change in street lines or lot lines. Except as provided in paragraph (4) of this subsection, “subdivision” does not include any division of land into parcels of more than 3 acres, if the division: Is for agricultural purposes; and Does not involve any new street or easement of access. In Carroll County, “subdivision” does not include: Any division of land into parcels of more than 3 acres, if the division: Is for agricultural purposes; and Does not involve any new street or easement of access; or A remainder parcel of land of 25 acres or more that exists as a result of the division of a large parcel into at least 2 smaller parcels, provided that any occupied dwelling on the remainder parcel is serviced by a properly functioning sewerage disposal system and potable water supply. “Water supply system” means a publicly or privately owned or operated: Source and the surrounding area from which water is supplied for drinking or domestic purposes; and Structure, channel, or appurtenance used or intended to be used to prepare water for use or to deliver water to a consumer. “Water supply system” does not include the plumbing system inside any building that is served by the water supply system.