All costs incurred to provide waste collection and disposal by the city shall be paid out of the city’s annual tax revenues or by service charges to be collected from all persons owning real property located within the corporate boundaries of the city. Such charges shall be fixed by ordinances from time to time, and enacted in such amounts as can be reasonably expected to yield revenues substantially equal to the cost of operation of the system.
(1996 Code, § 11-7.02)