All plumbing installed within the city shall be installed in accordance with the State Plumbing Code, 77 Ill. Adm. Code 890. If, in accordance with the State Plumbing Code, or if, in the judgment of the City Superintendent, an approved backflow prevention device is necessary for the safety of the public water supply system, the Superintendent shall give notice to the water customer to install such an approved device immediately. The water customer shall, at his or her own expense, install such an approved device at a location and in a manner in accordance with the State Plumbing Code, State Environmental Protection Agency and all applicable local regulations, and shall have inspections and tests made of such approved devices upon installation and as required by the State Plumbing Code, State Environmental Protection Agency and local regulations.
(1999 Code, § 38-3-16)