When a customer has notified the utility of discontinuance of service, the utility shall prepare a final bill. Such bill, even if for less than one month service, shall include the monthly service charge as set forth under the existing rate schedule adopted by the city council by resolution, a copy of which is available for public inspection at city hall. In addition, usage shall be billed in the amount of actual water used, according to the existing rate schedule adopted by the city council by resolution, a copy of which is available for public inspection at city hall. (Ord. 611 § 13, 1998: Ord. 585 § 14, 1995)