§ 54.01  PREVENTION; DEFINITIONS.
   For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
   AIR GAP SEPARATION.  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 overflow level rim of the receptacle, and shall be a minimum of one inch but not less than two times the diameter of the effective spout opening when not affected by side walls, and three times the diameter of the effective spout opening when affected by side walls. Side walls will be assumed to not affect air gaps when they are spaced horizontally a distance greater than four times the effective opening from the spout opening.
   APPROVED TESTER.  A person qualified to make inspections; to test and repair backflow prevention/cross-connection control devices; and who is approved by the village.
   AUXILIARY WATER SUPPLY.  Any water source or system, other than the village, that may be available in the building or premises.
   BACKFLOW.  The flow, other than the intended direction of flow, of any foreign liquids, gases, used water or substances into the distribution system of a public water supply system.
   BACKFLOW PREVENTION DEVICE.  Any device, method or type of construction intended to prevent backflow into the public water supply system.
   CONSUMER.  Any individual, firm, partnership, corporation or agency or his, her, its or their authorized agent, receiving water from the village.
   CONSUMER’S WATER SYSTEM.  All service pipe, all distribution piping and all appurtenances beyond the service meter of the public water system.
   CONTAMINATION.  An introduction of any sewage, process fluids, chemicals, wastes or any other substance that would be objectionable. CONTAMINATION may be a threat to life or health, or may cause an aesthetic deterioration, color, taste or odor.
   CROSS-CONNECTION.  Any physical connection or arrangement between two otherwise separate piping systems, one of which contains potable water of the public water system, and, the second, water of unknown or questionable safety, or steam, gases, chemicals or substances whereby there may be backflow from the second system to the public water supply system. No physical CROSS- CONNECTION shall be permitted between a public water supply system and an auxiliary water supply system.
   DEGREE OF HAZARD.  An evaluation of the potential risk to public health and the adverse effect of the hazard upon anyone using the water.
   HEALTH HAZARD.  Any condition, device or practice in the public water supply system which could create or may create a danger to the health and well-being of anyone using the water or allow contamination of the public water system.
   PUBLIC WATER SUPPLY SYSTEM.  The public water system and the consumers’ water systems.
   PUBLIC WATER SYSTEM.  The water supply source, distribution system and appurtenances to the service meter operated as a public utility which supplies potable water to the consumers’ water systems.
   SERVICE CONNECTION.  The terminal end of the service line from the public water system. If a meter is installed at the end of the service, then the SERVICE CONNECTION means the downstream end of the meter.
(Prior Code, § 4-401)