As used in this article, the following terms shall have the meanings indicated:
ACCEPTABLE BACKFLOW PREVENTION DEVICEAn acceptable air gap, reduced-pressure-zone device or double-check-valve assembly used to contain potential contamination within a facility. In order for the reduced-pressure-zone device or the double-check-valve assembly to be acceptable, it must be listed on the most current version of the New York State Department of Health list of acceptable devices.
AESTHETICALLY OBJECTIONABLE FACILITYOne in which substances are present which, if introduced, into the public water supply system, could be a nuisance to other water customers, but would not adversely affect human health.
AIR GAPThe 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 flood-level rim of said vessel. An approved air gap shall be at least double the diameter of the supply pipe, measured vertically, above the top of the rim of the vessel and, in no case, less than one inch.
APPROVEDAccepted by the Water Superintendent as meeting an applicable specification stated or cited in this article or as suitable for the proposed use.
AUXILIARY WATER SUPPLYAny water supply on or available to the premises, other than an approved public water supply. These auxiliary waters may include water from any natural source(s), such as a well, spring, river, stream, harbor, etc., or used waters.
BACKFLOWA flow condition, induced by a differential in pressure, that causes the flow of water or other liquids and/or gases into the distribution pipes of the Town of Sodus supply system from any source other than its intended source.
CERTIFIED TESTERThat individual or firm approved to accomplish the necessary inspections and operational tests of backflow prevention devices.
CONTAMINATIONThe presence in water of a substance that tends to degrade its quality.
CUSTOMERA water user served by the Town of Sodus supply system.
CUSTOMER'S WATER SYSTEMThe piping used to convey water supplied by the Town of Sodus supply system throughout a customer's facility. The system shall include all those parts of the piping beyond the control point of the Town of Sodus. The control point is either the curb valve or the main valve located in the public right-of-way that isolates the customer's facilities from the district distribution system.
DEGREE OF HAZARDWhether a facility is rated as hazardous, aesthetically objectionable or nonhazardous.
DOUBLE-CHECK-VALVE ASSEMBLY, ACCEPTABLEAn assembly composed of two single, independently acting check valves, including tightly closing shutoff valves located at each end of the assembly and suitable connections for testing the watertightness of each check valve.
HAZARDOUS FACILITYOne in which substances may be present which, if introduced into the public water system, would or may endanger or have an adverse effect on the health of other water customers. (Typical examples: laboratories, sewage treatment plant, chemical plants, hospitals and mortuaries.)
NONHAZARDOUS FACILITYOne which does not require the installation of an acceptable backflow prevention device.
PUBLIC WATER SUPPLY SYSTEMThe Town of Sodus system, including the source, treatment works, transmission mains, distribution system and storage facilities serving the public. This includes the distribution system up to its connection with the customer's water system.
REDUCED PRESSURE ZONE DEVICE, ACCEPTABLEA 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 upstream (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. 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.
SUPERINTENDENTThe Superintendent of the Town of Sodus Water Department.