In this section the following words have the meanings indicated. “Community sewerage system” means a publicly or privately owned sewerage system that serves at least two lots. “Controlling authority” means a unit of government, a body public and corporate, or an intercounty agency authorized by the State, a county, or a municipal corporation to provide for the management, operation, and maintenance of a community sewerage system, shared facility, or multiuse sewerage system. “Shared facility” means a sewerage system that: Serves more than one: Lot and is owned in common by the users; Condominium unit and is owned in common by the users or by a condominium association; User and is located on individual lots owned by the users; or User on one lot and is owned in common by the users; Is located wholly or partly on any of the common elements of a condominium; or Serves a housing cooperative or other multiple ownership cooperative. This section may not be construed as requiring a local jurisdiction to: Be a controlling authority; or Authorize or allow the use of a shared facility or a community sewerage system within the local jurisdiction. A shared facility or community sewerage system may be approved only if the system: Is managed, operated, and maintained by: A controlling authority; or A third party under contract with the controlling authority; and Discharges: To the surface waters of the State in accordance with a permit issued under § 9–323 of this title; By way of land application under a nutrient management plan required under § 8–803.1 of the Agriculture Article that assures 100% of the nitrogen and phosphorus in the applied effluent will be taken up by vegetation; or By way of an on–site sewerage system.