AWWA STANDARD: An official standard developed and approved by the American Water Works Association (AWWA).
AIR-GAP SEPARATION (AG): A physical break between a supply pipe and a receiving vessel. The air-gap shall be at least double the diameter of the supply pipe measured vertically above the top rim of the vessel, but in no case less than one inch (1").
APPROVED BACKFLOW PREVENTION ASSEMBLY: An assembly that has been manufactured in full conformance with the standards established by the American Water Works Association entitled, AWWA C506 (Current Revision) Standards for Reduced Pressure Principle and Double Check Valve Backflow Prevention Devices, and which has passed laboratory and field evaluation tests performed by a recognized testing organization which has demonstrated their competency to perform such tests for the City of West Wendover.
APPROVED WATER SUPPLY: Any water supply whose potability is regulated by a State or local health agency.
AUXILIARY SUPPLY: Any water supply on or available to the premises other than the approved water supply.
BACKFLOW: A flow condition, caused by a differential in pressure, that causes the flow of water or other liquids, gases, mixtures or substances into the distributing pipes of a potable supply of water from any source or sources other than an approved water supply source. Backsiphonage is one cause of backflow. Backpressure is the other cause.
CONTAMINATION: A degradation of the quality of the potable water by any foreign substance which creates a hazard to the public health or which may impair the usefulness or quality of the water.
CROSS-CONNECTIONS: As used in this Chapter means any unprotected actual or potential connection between a potable water system used to supply water for drinking purposes and any source or system containing unapproved water or substances that is not or cannot be approved as safe, wholesome and potable. Bypass arrangements, jumper connection, removable sections, swivel or changeover assemblies, or other assemblies through which backflow could occur, shall be considered to be cross-connection.
DOUBLE CHECK VALVE ASSEMBLY (DC): An approved backflow prevention assembly of two (2) internally loaded, independently acting check valves, including resilient seated shut-off valves on each end of the assembly and test cocks for testing the watertightness of each check valve.
PERSON: Any individual, corporation, company, association, partnership, municipality, public utility, or other public body or institution.
PREMISES: Any and all areas on a water user's property which are served or have the potential to be served by the public water system.
PUBLIC WATER SYSTEM: A system for the provision of piped water to the public for human consumption that has fifteen (15) or more service connections or regularly serves an average of twenty five (25) individuals daily at least sixty (60) days out of the year.
RECLAIMED WATER: A wastewater, which as a result of treatment is suitable for uses other than potable use.
REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTION ASSEMBLY: An approved backflow prevention assembly incorporating two (2) internally loaded check valves, including resilient seated shut- off valves on each end of the assembly and equipped with necessary test cocks for testing the assembly.
SERVICE CONNECTIONS: Refers to the point of connection of a user's piping to the water supplier's facilities.
WATER SUPPLIER: The person who owns or operates an approved water supply system.
WATER USER: Any person obtaining water from an approved water system. (Ord. 99-13, 9-21-1999)