When it becomes necessary for the city to undertake rectification of a nuisance or damage on public property because of the failure of any contractor or his or her agent to perform properly or promptly, the city shall draw upon and charge against the cash bond posted by the contractor in accordance with the schedule set forth in this section. The entire amount of the cash bond shall be deemed as available for any type of correction, regardless of the proximity of the nuisance or damage to the property.
(A) For contract work, the charge against the cash bond shall be the net amount of the contract, plus 25% for overhead expenses of the city.
(B) For each trip or call of city employees to backfill or maintain the backfill of excavation, to prune damaged trees or shrubs, or to remove earth, sand, rock, cement, mortar, or other rubbish from sidewalks, parkway, gutter, sewer inlet, or pavement, the charges against the cash bond shall be $50.
(C) For each drainage ditch cleaned by city employees, the charge shall be $100.
('69 Code, § 6-58)