For the purpose of this article, unless it is plainly
evident from the context that a different meaning is intended, certain
terms used herein are defined as follows:
AIR-GAP SEPARATION
A physical break between a supple 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, and in no case
less than one inch.
APPROVED CHECK VALVE
A check valve that seats readily and completely. It must
be carefully machined to have free-moving parts and assured watertightness.
The face of the closure element and valve seat must be bronze, composition
or other noncorrodible material which will seat tightly under all
prevailing conditions of field use. Pins and brushings shall be of
bronze or other noncorrodible, nonsticking material, machined for
easy, dependable operation. The closure element (e.g., clapper) shall
be internally weighted or otherwise internally equipped to promote
rapid and positive closure in all sizes where this feature is obtainable.
APPROVED DOUBLE-CHECK-VALVE ASSEMBLY
An assembly of at least two independently acting approved
check valves, including tightly closing shutoff valves on each side
of the check valve assembly and suitable test cocks, plus connections
available for testing the watertightness of each valve.
APPROVED REDUCED-PRESSURE-PRINCIPLE BACKFLOW PREVENTION DEVICE
A device incorporating two or more check valves and an automatically
operating differential relief valve located between the two checks,
two shutoff valves and equipped with necessary appurtenances for testing.
The device shall operate to maintain the pressure in the zone between
the two check valves less than the pressure on the public water supply
side of the device. At cessation of normal flow, the pressure between
the check valves shall be less than the supply pressure. In case of
leakage of either check valve, the differential relief valve shall
operate to maintain this reduced pressure by discharging to the atmosphere.
When the inlet pressure is two pounds per square inch or less, the
relief valve shall open to the atmosphere, thereby providing an air
gap in the device. To be approved, these devices must be readily accessible
for maintenance and testing and installed in a location where no part
of the device will be submerged.
APPROVED WATER SUPPLY
Any water supply approved by or under the public health supervision
of a public health agency of the State of New York, the County of
Ulster or the Town of Esopus. In determining what constitutes an approved
water supply, the Department of Public Health of the State of New
York (herein called the "State Health Department") shall have the
final judgment as to its safety and potability.
CONSUMER
Any person to whom water is sold and furnished from the Port
Ewen Water District.
CONTAMINATION
An impairment of the quality of the town water supply by
the presence of any foreign substance (organic, inorganic, radiological
or biological) to a degree which creates a hazard to the public health.
COUNTY HEALTH OFFICER
The Ulster County Health Officer, his assistants or authorized
deputies acting as, or any other person appointed as, Health Officer
of the County of Ulster.
CROSS-CONNECTION
Any unprotected connection between any part of the Port Ewen
Water Department's waterworks system used or intended to supply water
for drinking purposes and any source or system containing water or
substance that is not or cannot be approved as safe, wholesome and
potable for human consumption.
NONTOXIC SUBSTANCE
Any substance of a nonpoisonous nature that may create a
moderate or minor hazard to the water supply system.
PERSON
Any natural person, firm, association, organization, partnership,
trust or association of persons, joint venture, corporation or company,
and includes the United States, the State of New York, the County
of Ulster, any special purpose district and any officer or agent thereof.
PREMISES
Integrated land area, including improvements thereon, undivided
by public thoroughfares or water distribution mains of the Port Ewen
Water District, and where all parts of the premises are operated under
the same management and for the same purpose.
PROTECTIVE DEVICE
Any of the following devices:
(2)
Approved reduced-pressure-principle backflow
prevention device.
(3)
Approved double-check-valve assembly.
SERVICE CONNECTION
The terminal end of a service connection from the town water
supply at its point of delivery to the consumer. If a meter is installed,
"service connection" means the downstream end of the meter. No unprotected
takeoffs from the service line ahead of any meter or backflow-protective
device located at the point of delivery to the consumer shall be permitted.
SUPERINTENDENT
The Superintendent of the Port Ewen Water District or his
authorized representative.
TOXIC SUBSTANCE
Any substance (liquid, solid or gaseous), including raw sewage
and lethal substances, that, when introduced into the water supply
system, creates or may create a danger to the health and well-being
of the consumer.
WATER SUPPLY
An approved water supply sold and delivered to the consumers'
premises through the waterworks system of the Port Ewen Water District.