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<br />5.48 <br />Page 5 <br /> <br />Sec. 38.38 Requirements for Backflow Protection <br /> <br />A. Conditions Necessitating Backflow. In the case of premises having any of the <br />following, the public water system shall be protected against backflow from the <br />premises by installing an approved backflow prevention assembly in the service <br />line, appropriate to the degree of hazard: <br /> <br />1. An auxiliary water supply or a supply that is not or may not be of safe <br />bacteriological or chemical quality and that is not acceptable as an <br />additional source by the City. <br /> <br />2. Industrial fluids or any other objectionable substances are handled in such <br />a fashion as to create an actual or potential hazard to the public water <br />system. This shall include the handling of process waters and waters <br />originating from the utility system that have been subject to deterioration in <br />quality. <br /> <br />3. Internal cross connections that cannot be permanently corrected and <br />controlled. <br /> <br />4. Intricate plumbing and piping arrangements. <br /> <br />5. Where entry to all portions of the premises is not readily accessible for <br />inspections purposes, making it impracticable or impossible to ascertain <br />whether or not dangerous cross connections exist. <br /> <br />8. Type of Backflow Protection. The type of protective assembly required under <br />subsection 38.38(A) shall depend upon the degree of hazard that exists. <br /> <br />1. The public water system shall be protected by an approved air gap <br />separation, or a reduced pressure principle backflow prevention assembly <br />if approved by the Director, on each service to the premises for the <br />following degrees of hazard. <br /> <br />a. <br /> <br />In the case of any premises where there is an auxiliary water <br />supply. <br /> <br />b. <br /> <br />In the case of any premises where there is any material dangerous <br />to health that is handled in such a fashion as to create an actual or <br />potential hazard to the public water system. Examples of premises <br />where these conditions will exist include sewage treatment plants, <br />sewage pumping stations, chemical manufacturing plants, <br />hospitals, mortuaries, and plating plants. <br /> <br />c. <br /> <br />In the case of any premises where there are cross connections, <br />either actual or potential. <br /> <br />ATTY/ORD/ORD.305 <br />041608 <br /> <br />5 <br />