Pursuant to the general laws of the state and the powers of the city under its Charter, the council declares its intention to acquire, own, construct, equip, operate and maintain, within and without the city limits, sewerage equipment and appurtenances necessary, useful, or convenient for a complete sewerage system, and to provide for the maintenance and extension of the same and its reconstruction as may be deemed necessary or proper by the council.
(Code 2000 § 5.105)