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A. Buildings Any multi-story building, hotel, apartment house, public or private <br /> structure if a booster pump is used on the premises, or it is expected that a piping <br /> or equipment change might be made that could result in a cross connection to a <br /> low hazard. <br /> B. Establishments Any establishment containing chemical or biological pollutants. <br /> C. Interconnected Water Services If there is a potential for two or more water <br /> service lines being interconnected, and all water is used domestically, and only <br /> water from the Water System is available to the premises. <br /> D. Private Water Systems If there is an auxiliary water supply on or available to the <br /> premises, including a fire protection system. <br /> Section 4.4 HOSE BIB VACUUM BREAKER CONTAINMENT (HBVB) shall be modified <br /> to read as follows: <br /> A HBVB device shall be utilized on all premises for isolation and back siphonage only. <br /> Section 4.5 CONTAINMENT NOT REQUIRED shall be modified to read as follows: <br /> • Backflow prevention shall not be required in the water service line if the owner can <br /> document that there are no potential hazards on the premises, that the owner has provided <br /> isolation in their facility and the Water System complies with all applicable requirements <br /> of the City and State of Arkansas, and the Water System conforms to one of the <br /> following: <br /> A. Residential Systems Used exclusively for domestic purposes, unless the system <br /> includes a permanently installed yard sprinkler system. <br /> B. Solar Heating Systems Used exclusively for once through heating (i.e. domestic <br /> hot water), and no chemical additives are used in the system. <br /> • 8 <br />