[Amended 11-11-1996]
As used in this article, the following terms shall have the meanings indicated:
BACKFLOWThe flow of contaminants, pollutants, process fluids, used water, untreated waters, chemicals, gases and nonpotable waters into any part of a waterworks.
CONSUMERThe owner or person in control of any premises supplied by or in any manner connected with waterworks.
CONSUMER'S WATER SYSTEMAny water system located on the consumer's premises, supplied by or in any manner connected to a waterworks.
CONTAMINATIONAny introduction into pure water of microorganisms, wastes, wastewater, undesirable chemicals or gases.
CROSS-CONNECTIONAny connection or structural arrangement, direct or indirect, to the waterworks whereby backflow can occur.
HEALTH HAZARDAny condition, device or practice in a waterworks or its operation that creates or may create a danger to the health and well-being of the water consumer.
POLLUTIONThe presence of any foreign substance (chemical, physical, radiological or biological) in water that tends to degrade its quality so as to constitute an unnecessary risk or impair the usefulness of the water.
POLLUTION HAZARDA condition through which an aesthetically objectionable or degrading material may enter the waterworks or a consumer's water system.
PURE WATER or POTABLE WATERWater fit for human consumption and use which is sanitary and normally free of minerals, organic substances and toxic agents in excess of reasonable amounts for domestic usage in the area served and normally adequate in supply for the minimum health requirement of the persons served.
REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTION DEVICEA device containing a minimum of two independently acting check valves together with an automatically operated pressure differential relief valve located between the two check valves. During normal flow and at the cessation of normal flow, the pressure between these two checks shall be less than the supply pressure. In case of leakage of either check valve, the differential relief valve, by discharging to the atmosphere, shall operate to maintain the pressure between the check valves at less than the supply pressure. The unit must include tightly closing shutoff valves located at each end of the device, and each device shall be fitted with properly located test cocks. These devices must be of the approved type.
SERVICE CONNECTIONThe terminal end of a service line from the waterworks. If a meter is installed at the end of the service, then "service connection" means the downstream end of the meter.
SYSTEM HAZARDA condition posing an actual, or threat of, damage to the physical properties of the waterworks or a consumer's water system.
USED WATERAny water supplied by a water purveyor from waterworks to a consumer's water system after it has passed through the service connection.
WATER PURVEYORAn individual, group of individuals, partnership, firm, association, institution, corporation, municipal corporation, county or authority which supplies water to any person within this state from or by means of any waterworks.
WATERWORKSAll structures and appliances used in connection with the collection, storage, purification and treatment of water for drinking or domestic use and the distribution thereof to the public or residential consumers.