A penalty of 10% of the amount of the charges made under this subchapter shall be added to each bill not paid on or before the due date thereon.
(Prior Code, § 51.57) (Ord. D-1635, passed 9-9-1991, effective 9-9-1991; Ord. D-1878, passed 10-9-2000, effective 11-1-2000; Ord. D-1933, passed 8-26-2002, effective 10-1-2002)