It shall be the duty of the officer charged with the collection of the charges to enforce payment thereof, together with the penalties provided by law. If any such charge shall not be paid for service rendered to any lot, parcel of real estate, or building served within 30 days after written notice of the amount due has been given to the owner thereof, such officer shall proceed to enforce payment as directed by the Board of Trustees or as provided by law.
(‘82 Code, § 32-205)