(A) An approval backflow prevention device shall be installed on each service line to a consumer’s water system serving premises where, in the judgment of the Superintendent of Water, actual or potential hazards to the public water supply system exist.
(B) An approved backflow prevention device shall be installed on each service line to a consumer’s water system serving any of the following premises:
(1) The premises having an auxiliary water supply, unless the auxiliary supply is an approved water supply, is accepted as an additional source by the Superintendent of Water and the source is approved by the Illinois Environmental Protection Agency;
(2) Premises on which any substance is handled which can create an actual or potential hazard to the public water supply system. This shall include premises having sources or systems containing process fluids or waters originating from the public water supply system which are no longer under the sanitary control of the Superintendent of Water;
(3) Premises having internal cross-connections that, in the judgment of the Superintendent of Water, are not correctable or intricate plumbing arrangements which make it impractical to determine whether or not cross-connections exist;
(4) Premises where, because of security requirements or other prohibitions or restrictions, it is impossible or impractical to make a complete cross-connection survey; or
(5) Premises have a repeated history of cross-connections being established or reestablished.
(C) An approved backflow prevention device shall be installed on each service line to a consumer’s water system serving, but not necessarily limited to the following types of facilities unless the Superintendent of Water determines that no actual or potential hazard to the public water supply system exists:
(1) Hospitals, mortuaries, clinics, nursing homes, churches;
(2) Laboratories;
(3) Piers, docks, waterfront facilities;
(4) Sewage treatment plants, sewage pumping stations or stormwater pumping stations;
(5) Food or beverage processing plants;
(6) Chemical plants, pesticide, herbicide or extermination trucks;
(7) Metal plating industries;
(8) Petroleum processing or storage plants;
(9) Radioactive material processing plants or nuclear reactors;
(10) Carwashes and laundromats;
(11) Pumps for nonpotable water, chemicals or other substances;
(12) Potable water connections to boilers;
(13) Refrigerating unit condensers and cooling jackets;
(14) Bidets; and
(15) Farm service/fertilizer plants and trucks.
(D) An approved backflow prevention device shall be installed on each fire safety systems service line connected to the public water supply. All the installations shall include a metered detection system to indicate and measure unauthorized use.
(1990 Code, § 30-313) (Ord. 90-1332, passed 2-19-1990; Ord. 91-1386, passed 2-18-1991)