APPROVED BACKFLOW ASSEMBLY: A device or assembly accepted by the Utah Department of Health, Bureau of General Sanitation, as meeting applicable specifications or is suitable for the proposed use of prevented backflow.
AUXILIARY WATER SUPPLY: Any water supply on or available to the premises other than the City's public water supply will be considered as an auxiliary water supply. These auxiliary waters may include water from another purveyor's public potable water supply or any natural source such as a well, spring, river, stream, harbor, etc., or "used waters" or "industrial fluids". These waters may be contaminated or polluted or they may be objectionable and constitute an unacceptable water source over which the City does not have authority for sanitary control.
BACK PRESSURE: The flow of water or other liquids, mixtures or substances under pressure into the distribution pipes of a potable water supply system from any source other than the intended source.
BACK SIPHONAGE: The flow of water or other liquids, mixtures or substances into the distribution pipes of a potable water supply system from any source other than the intended source, caused by the reduction of pressure in the potable water supply system.
BACKFLOW: The reversal of the normal flow of water caused by either back pressure or back siphonage.
BACKFLOW PREVENTION ASSEMBLY: An assembly or means designed to prevent backflow, as defined in the International Plumbing Code.
CONTAMINATION: An impairment of the quality of the potable water supply by sewage, industrial fluids or waste liquids, compounds or other materials to a degree which creates an actual or potential hazard to the public health through poisoning or through the spread of disease.
CROSS-CONNECTION: Any physical connection or arrangement of piping or fixtures between two (2) otherwise separate piping systems, one of which contains potable water and the other nonpotable water or industrial fluids of questionable safety, through which, or because of which, backflow may occur into the potable water system. This would include any temporary connections, such as swing connections, removable sections, four (4) way plug valves, spools, dummy sections of pipe, swivel or change-over devices or sliding multi-port tubes.
CROSS-CONNECTION, CONTAINMENT: The installation of an approved backflow assembly at the water service connection to any customer's premises where it is physically and economically infeasible to find and permanently eliminate or control all actual or potential cross-connections within the customer's water system; or, it shall mean the installation of an approved backflow prevention assembly on the service line leading to and supplying a portion of a customer's water system where there are actual or potential cross-connections which cannot be effectively eliminated or controlled at the point of the cross-connection (isolation).
CROSS-CONNECTION, CONTROLLED: A connection between a potable water system and a nonpotable water system with an approved backflow prevention assembly properly installed and maintained so that it will continuously afford the protection commensurate with the degree of hazard.
PUBLIC WORKS DIRECTOR: The person designated to be in charge of the Water Department of the City is invested with the authority and responsibility for the implementation of an effective cross-connection control program and for the enforcement of the provisions of this Chapter. (1989 Code § 14-165; amd. 1998 Code)