For the purpose of this subchapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
   AUTHORITY.  The Kalamazoo Lake, Sewer and Water Authority.
   CITY.  The City of Saugatuck, Michigan, as represented by the City Council.
   REVENUES and NET REVENUES.  Shall be understood to have the meanings as defined in Public Act 94 of 1933, § 3, being M.C.L.A. § 141.103, as amended.
   THE SYSTEM.  The term shall be understood to mean all facilities of the city and all subsequent additions, including all wells, pumps, reservoirs, water lines, and all other facilities used or useful in the water supply system to domestic, commercial or industrial users, including all appurtenances thereto and including all extensions and improvements thereto which may hereafter be acquired.