For the purpose of this chapter the following definitions shall apply unless the context clearly indicates or requires a different meaning.
AGENCY. The City Administrator or his designee, who is hereby invested with the authority and responsibility for the enactment and enforcement of this chapter.
AIR GAP. The unobstructed vertical distance through the free atmosphere between the lowest opening from any pipe or faucet supplying water to a tank, plumbing fixture, or other device and the flood-level rim of the receptacle.
APPROVED. Accepted by the agency as meeting an applicable specification stated or cited in this chapter, or as suitable for the proposed use.
AUXILIARY SUPPLY. Any water source or system other than the potable water supply that may be available in the building or premises.
BACKFLOW. The flow of water or other liquids, mixtures or substances into the distributing pipes of a potable supply of water from any source of sources other than its intended source. Back-siphonage is one type of backflow.
BACKFLOW PREVENTER. A device or means to prevent backflow.
BACK-SIPHONAGE. Backflow resulting from negative pressures in the distributing pipes of a potable water supply.
CHECK VALVE. A self-closing device which is design to permit the flow of fluids in one direction and to close if there is a reversal of flow.
CONTAMINATION. See POLLUTION.
CROSS-CONNECTION. Any physical connection between a potable water supply and any unapproved source or system through which backflow can occur. Furthermore, it is any potable water supply outlet which is submerged or can be submerged in waste water and/or any other source of contamination. See BACKFLOW and BACK-SIPHONAGE.
DRAIN. Any pipe that carries waste water or water-borne wastes in a building drainage system.
FIXTURE, PLUMBING. Installed receptacles, devices or appliances supplied with water or that receive or discharge liquids or liquid-borne wastes.
FLOOD-LEVEL RIM. The edge of the receptacle from which water overflows.
HAZARD, HEALTH. Any condition, devices or practices in the water supply system and its operation which create, or, in the judgment of the Director, may create, a danger to the health and well-being of the water consumer. An example of a health hazard is a structural defect in the water supply system, whether of location, design or construction, that regularly or occasionally may prevent satisfactory treatment of the water supply or cause it to be polluted from extraneous sources.
HAZARD, PLUMBING. Any arrangement of plumbing including piping and fixtures whereby a cross-connection is created.
HYDROPNEUMATIC TANK. A pressure vessel in which air pressure acts upon the surface of the water contained within the vessel, pressurizing the water distribution piping connected to the vessel.
OUTLET. The open end of the water supply pipe through which the water is discharged into the plumbing fixture.
PLUMBING SYSTEM. Includes the water supply and distribution pipes, plumbing fixtures and traps; soil, waste and vent pipes; building drains and building sewers, including their respective connections, devices and appurtenances within the property lines of the premises; and water-treating or water-using equipment.
POLLUTION. The presence of any foreign substance (organic, inorganic, radiological or biological) in water that tends to degrade its quality so as to constitute a hazard or impair the usefulness of the water.
REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTER. An assembly of differential valves and check valves including an automatically opened spillage port to the atmosphere designed to prevent backflow.
SURGE TANK. The receiving, nonpressure vessel forming part of the air gap separation between a potable and an auxiliary supply.
VACUUM. Any pressure less than that exerted by the atmosphere.
VACUUM BREAKER, NONPRESSURE TYPE. A vacuum breaker designed so as not be subjected to static line pressure.
VACUUM BREAKER, PRESSURE TYPE. A vacuum breaker designed to operate under conditions of static line pressure.
WATER, POTABLE. Water free from contaminants in amounts sufficient to cause disease or harmful physiological effects. Its bacteriological and chemical quality shall conform to the requirements of the federal and state drinking water regulations and to any regulations of the public health authority having local jurisdiction.
WATER, NONPOTABLE. Water that is not safe for human consumption or that is of questionable potability.
(Ord. 553, passed 5-1-89)