When used in this chapter, the following words shall have the meanings herein ascribed to them:
AWWA STANDARD: An official standard developed and approved by the American Water Works Association (AWWA).
AIR GAP SEPARATION: A physical vertical separation between the free flowing discharge end of a potable water supply pipeline and an open or nonpressurized 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, in no case less than one inch (1").
APPROVED BACKFLOW PREVENTION ASSEMBLY OR ABPA: Any assembly that is currently included on the El Dorado irrigation district approved backflow prevention assemblies list and that has passed laboratory and field evaluation tests performed by a recognized testing organization which has demonstrated their competency to perform such tests to the California department of public health.
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.
CITY: The city of Placerville.
CITY BACKFLOW PREVENTION ASSEMBLY TESTER: A backflow prevention assembly general tester with current AWWA certification or city approved organization with equivalent certification requirements.
CONTAMINANT: 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 CONNECTION: 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 a substance that is not or cannot be approved as safe, wholesome, and potable. Bypass arrangements, jumper connections, removable sections, swivel or changeover assemblies, or other assemblies through which backflow could occur, shall be considered to be cross connections.
CROSS CONNECTION CONTROL SPECIALIST: A cross connection control program specialist with current AWWA certification or city approved organization with equivalent certification requirements.
CUSTOMER: The person(s) or entity whose water service is served from the public water system and in whose name the utility water account is registered.
DEACTIVATED WELL: Any well in which all pumping components, including, but not limited to, pump, piping, and power supply (if equipped) shall be removed from the well casing. Additionally, the top of the well or well casing shall be provided with a cover that is secured by a lock or by other means to prevent its removal without the use of equipment or tools.
DIRECTOR: The community services director of the city of Placerville.
DOUBLE CHECK VALVE ASSEMBLY (DC): An assembly composed of two (2) single, independently acting check valves, two (2) tightly closing shutoff valves located at each end of the assembly, and four (4) test cocks for the testing of the check valves.
MANUAL OF CROSS CONNECTION CONTROL: The most current edition of the "Manual Of Cross Connection Control" as published by the University Of Southern California's Foundation For Cross Connection Control And Hydraulic Research.
POINT OF SERVICE CONNECTION: The point of connection of a customer's piping to the water supplier's facilities.
POLLUTION: An impairment of the quality of the water to a degree which does not create a hazard to the public health, but which does adversely and unreasonably affect the aesthetic qualities of such waters for domestic use.
PREMISES: Any and all areas on a customer's property which are served or have the potential to be served by the public water system.
RECYCLED WATER: Water which, as a result of treatment of waste, is suitable for a direct beneficial use or a controlled use that would not otherwise occur and is therefore considered a valuable resource.
REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTION ASSEMBLY (RP): A backflow preventer incorporating not less than two (2) check valves, an automatically operated differential relief valve located between the two (2) check valves, a tightly closing shut off valve on each side of the check valve assembly, and equipped with necessary test cocks for testing.
REDUCED PRESSURE PRINCIPLE DETECTOR ASSEMBLY (RPDA): A specially designed assembly composed of a line size approved reduced pressure principle backflow prevention assembly with a bypass containing a specific water meter and an approved reduced pressure principle assembly. This assembly shall be used to protect against a nonhealth hazard (i.e., pollutant) or a health hazard (i.e., contaminant). The RPDA is primarily used on fire sprinkler systems.
UNAPPROVED AUXILIARY WATER SUPPLY: Any water supply on or available to the premises other than the approved water supply. An unapproved auxiliary water supply includes, but is not limited to, a well, spring, pond, storage tank or any other water source that is piped or captured in any fashion that would facilitate its use as an unapproved auxiliary water supply on the premises. An unapproved auxiliary water supply does not include a decorative or natural water feature that serves solely for aesthetic and/or recreational purposes and lacks piping and/or equipment that would facilitate its use as an unapproved auxiliary water supply on the premises. (Ord. 1661, 2-25-2014)