Each single-family dwelling unit, commercial or industrial building within the city shall pay a sewer service charge to the city, monthly, commencing with the effective date of the ordinance codified in sections 13.12.030 through 13.12.070 of this chapter, in an amount as set by resolution of the city council, per month for each of the above single-family dwellings, commercial and industrial buildings. The monthly charge shall be collected monthly by the city, after said effective date, by adding the charge to the present city utility statement. (Ord. 1381-85, 1985)