AUTHORIZED; DEFINITIONS.

Any municipality may acquire, construct, establish and equip and thereafter repair, maintain and operate a combined waterworks and sewerage system either wholly within or partly within and partly without the corporate limits thereof, under the provisions of this article, and any municipality owning and operating either a waterworks or a sewerage system, but not both, may acquire, construct, establish and equip the waterworks or sewerage system which it does not then own and operate, and in either of such cases such municipality may provide by ordinance that when such waterworks or sewerage system, or both, shall have been acquired, constructed, established and equipped, the same shall thereafter be owned, repaired, maintained and operated as a combined undertaking under the provisions of this article, and any municipality already owning and operating an existing waterworks system and an existing sewerage system may by ordinance combine the same into a single undertaking under the provisions of this article.

Any municipality which has combined its waterworks and sewerage system under the provisions of this article, or pursuant to provisions of any other law, may hereafter construct extensions, additions, betterments and improvements to either the waterworks system or the sewerage system of said combined waterworks and sewerage system, or both, and may finance the acquisition, construction, establishment and equipment of any such waterworks or sewerage system, or both, or the construction of extensions, additions, betterments and improvements to either the waterworks system or the sewerage system of such combined waterworks and sewerage system, or both, by the issuance of revenue bonds under the provisions of this article.

Notwithstanding the provisions of any other law or charter to the contrary, any such municipality may serve and supply the area included within twenty miles outside its corporate limits with the water or sewer services and facilities, or both, of its combined waterworks and sewerage system: Provided, That such water or sewer services and facilities shall not be served or supplied within the corporate limits of any other municipality without the consent of the governing body of such other municipality.

When used in this article, the term "waterworks system" shall be construed to mean and include a waterworks system in its entirety or any integral part thereof, including mains, hydrants, meters, valves, standpipes, storage tanks, pump tanks, pumping stations, intakes, wells, impounding reservoirs, pumps, machinery, purification plants, softening apparatus, and all other facilities necessary, appropriate, useful, convenient or incidental in connection with or to a water supply system; the term "sewerage system" shall be construed to mean and include any or all of the following: A sewage treatment plant or plants, collecting, intercepting and outlet sewers, lateral sewers, drains, force mains, conduits, pumping stations, ejector stations and all other appurtenances, extensions, additions and improvements necessary, appropriate, useful, convenient or incidental for the collection, treatment and disposal in a sanitary manner of sewage and industrial wastes; and the term "combined waterworks and sewerage system" shall be construed to mean and include a waterworks and sewerage system, which a municipality determines by ordinance to operate in combination.