APPROVED BACKFLOW ASSEMBLY: | An assembly accepted by the Utah State Department of Environmental Quality, Division of Drinking Water, as meeting and applicable specification or as suitable for the proposed use. |
AUXILIARY WATER SUPPLY: | Any water supply on or available to the premises other than the purveyor'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(s) such as a well, spring, river, stream, 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 water purveyor does not have authority for sanitary control. |
BACKFLOW: | The reversal of the normal flow of water caused by wither back-pressure or back siphonage. |
BACK-PRESSURE: | The flow of water or other liquids, mixtures, or substances from a region of high pressure to a region of lower pressure into the water distribution pipes of a potable water supply system from any source(s) other than the intended source. |
BACK-SIPHONAGE: | The flow of water or other liquids, mixtures, or substances under vacuum conditions into the distribution pipes of a potable water supply system from any source(s) other than the intended source, caused by the reduction of pressure in the potable water system. |
BACKFLOW PREVENTION ASSEMBLY: | An assembly or means designed to prevent backflow. Specifications for backflow prevention assemblies are contained within the Plumbing Code as adopted by the State of Utah and in the Cross Connection Control Program for Utah maintained by the Division of Drinking Water. |
CERTIFIED TESTER: | An individual who holds a current Backflow Assembly Tester Certificate from the Utah Department of Environmental Quality under Utah Administrative Code R309-305. |
CROSS CONNECTION: | Any physical connection or arrangement of piping or fixtures which may allow non-potable water or industrial fluids or other material of questionable quality to come into contact with potable water inside a water distribution system. This would include temporary conditions, such as swing connections, removable sections, four way plug valves, spools, dummy sections of pipe, swivel or change-over devices or sliding multiport tubes or other plumbing arrangements. |
CONTAMINATION: | Means a degradation of the quality of the potable water supply by sewage industrial fluids or waste liquids, compounds or other materials that may create a health hazard. |
CROSS CONNECTION- CONTROLLED: | A connection between a potable water system and a non-potable 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. |
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/or permanently eliminate or control all actual or potential cross connection within the customer's water distribution system; or, it shall mean the installation of an approved backflow prevention assembly on the service line leading to and supply a portion of a customer's water distribution system; or, it shall mean the installation of 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). (Ord. 20-01, 4-21-2020) |