For the purpose of this subchapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
AIR GAP. A physical separation sufficient to prevent backflow between the free-flowing discharge end of the potable water system and any other system. Physically defined as a distance equal to twice the diameter of the supply side diameter but never less than one inch.
APPROVED ENCLOSURE. A protective enclosure manufactured pursuant to ASSE Standard 1060 for the purpose of preventing frost/freeze or physical damage to a cross connection assembly.
ASSE (PLUMBING). The American Society of Sanitary Engineering, a national organization that maintains performance standards for backflow prevention assemblies, devices, protective enclosures, and other parts of the plumbing system.
AUXILIARY INTAKE. Any piping connection or other device whereby water may be obtained from a source other than the City's public water supply.
AUXILIARY WATER SUPPLY. Any water other than the City public water supply as defined herein; including, but not limited to recycled water, grey water, rain water, well water, cistern water, reuse water and any other water supply from other water purveyors other than the City.
AWWA (APPROVED). The American Water Works Association, a national organization that maintains operational and educational standards for sanitary system professionals and products.
BACKFLOW. The flow of water or other liquids, mixtures, or substances, under positive or reduced pressure in the distribution pipes of a potable water supply from any source other than its intended source.
BACKFLOW DEVICE. A mechanical backflow assembly without shut-off valves or test ports and therefore not inline testable.
BACKFLOW PREVENTION ASSEMBLY. A mechanical arrangement used to protect the public water supply that meets or exceeds standards set forth by the University of Southern California for Cross Connection control and Hydraulic Research (USCFCCHR) and the American Society of Sanitary Engineering (ASSE) by being on the agency's approval list. A backflow assembly used on fire suppression systems must have the additional approval of Factory Mutual (FM) and comply with the National Fire Protection Association (NFPA) code.
BACKPRESSURE. A condition in which the customer's system pressure is greater than the supplier's system pressure.
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 its intended source caused by the sudden reduction of pressure in the potable water supply system.
BUILDING STORY. Equal to ten feet for the purpose of this handbook.
CERTIFIED TESTER. A person who has proven his/her competency to test, repair and make reports on backflow prevention assemblies as evidenced by certification upon the completion of a NCDEQ approved backflow prevention assembly testing and repair program.
CITY OF HAVELOCK or CITY. The water purveyor/supplier, or its designated representative(s) in the administration and enforcement of the cross connection program.
CONTAINMENT ASSEMBLY. A backflow assembly installed at the point of separation between the public water supply and a private service or private distribution system or at the point of metering.
CONTAINMENT PROTECTION. A containment assembly installed at the point of separation between the public water supply and a private service or private distribution system or at the point of metering.
CROSS CONNECTION. Any actual or potential connection between the public water supply and a source of contamination or pollution.
CROSS CONNECTION CONTROL COORDINATOR. The official position established and authorized by the City and designated by the Director of Public Utilities to administer, interpret this section and who may serve as operator in responsible charge as recognized by North Carolina Department of Environmental Quality 15A NCAC 18D.0701.
CUSTOMER. Any person or commercial/industrial establishment who has legal title to, or license to operate or inhabit, a property connected to the City public water supply, and whose name is listed on the water account for that location.
DOUBLE CHECK VALVE ASSEMBLY (DCVA). A type of backflow assembly manufactured pursuant to ASSE Standard 1015.
DOUBLE CHECK DETECTOR ASSEMBLY (DCDA). A type of backflow assembly manufactured pursuant to ASSE Standard 1048.
DUAL CHECK VALVE. A type of backflow device manufactured pursuant to ASSE Standard 1024.
FIRE LINE. A system of pipes and equipment used to supply water in an emergency for extinguishing fire.
FM (APPROVED). Factory Mutual, a company which tests and certifies the operation of fire protection and property loss equipment.
HIGH-HEALTH HAZARD. A cross connection or potential cross connection involving any substance that could, if introduced into the public water supply, cause death or illness, spread disease, or have a high probability of causing such effects.
IMMINENT HEALTH HAZARD. A situation deemed to pose an extremely high risk of water supply contamination in the event of low system pressure or pressure loss.
INTERCONNECTION. Any system of piping or other arrangement whereby the public water supply is connected directly to a sewer, drain, conduit, pool, heat exchanger, storage reservoir, or other device which does or may contain sewage or other waste or substance which would be capable of imparting contamination to the public water supply.
ISOLATION ASSEMBLY. A backflow assembly required by North Carolina Plumbing Code that is installed within a private plumbing or distribution system to isolate a localized hazard from the remainder of the private system.
LOW-HEALTH HAZARD. A cross connection or potential cross connection involving any substance that generally would not be a health hazard but would constitute a nuisance or be aesthetically objectionable if introduced into the public water supply.
POTABLE WATER. Water which has been approved for human consumption by the North Carolina Department of Environmental Quality.
PUBLIC WATER SUPPLY. The water and waterworks system of the city and its customers outside the city limits, for general use as potable water and which is recognized as the public water supply by the North Carolina Department of Environmental Quality as system number 04-25-010.
REDUCED PRESSURE PRINCIPLE ASSEMBLY (RPPA). A type of backflow assembly manufactured pursuant to ASSE Standard 1013.
REDUCED PRESSURE DETECTOR ASSEMBLY (RPDA). A type of backflow assembly manufactured pursuant to ASSE Standard 1047.
(Ord. 24-O-02, passed 2-26-2024)