All bills on the schedule of rates contained in §§ 53.16 through 53.20 shall be rendered and due monthly. If not paid by the fifteenth day following the date of bill, there shall be added 10% of the first $3 of the bill plus 3% of the amount of the bill in excess of $3. Remittances sent by mail on or previous to the fifteenth day as evidenced by the United States Post Office mark on the envelope in which they are received, will be accepted as a tender of payment within the time limit. When the fifteenth falls on Sunday or any other legal holiday, the first business day thereafter shall be considered as being within the time limit.
(Prior Code, § 53.01) (Ord. 12.1, passed 12-21-1978)