When the city has effected the removal of such litter or has paid for its removal, the actual cost thereof, including any incidental expenses, shall be charged to the owner of such property and the Director of Finance shall bill the owner, or his agent, therefor by mail. The bill shall also apprise the owner that if the bill is not paid in full within 30 days from the date thereof, the unpaid amount shall become a lien upon the property.
('86 Code, § 6.20.140) (Ord. 3014, passed - - ; Am. Ord. 3695, passed - - )