Definitions. As used in this chapter, the following
terms shall have the meanings indicated:
AIR GAP SEPARATION
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, 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 bushings shall be of
bronze and other noncorrodible, nonsticking material, machined for
easy dependable operation. The closure element 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
Two single independently acting check valves, including tightly
closing shutoff valves located at each end of the assembly and suitable
test connections. This device must be approved as a complete assembly.
APPROVED REDUCED PRESSURE PRINCIPAL 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 valve, the differential relief valve
shall operate to maintain this reduced pressure by discharging to
the atmosphere. 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.
AUXILIARY SUPPLY
Any water supply on or available to the premises other than
the approved public water supply.
CERTIFIED BACKFLOW PREVENTION DEVICE TESTER
An individual who has successfully completed a New York State
Department of Health approved course in the testing of backflow prevention
devices and has been issued a certificate by the New York State Department
of Health.
CONTAMINATION
An impairment of the quality of the Village 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.
CROSS CONNECTIONS
Any unprotected connection between any part of the Village
water system used or intended to be used as a supply of water for
drinking purposes in a source or systems containing water or substance
that is not or cannot be approved as equally 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 or persons, joint venture, corporation or company
and includes the United States, the State of New York, the County
of Erie, any special purposes district and officer or agent thereof.
PREMISES
Integrated land area, including improvements thereon, undivided
by public thoroughfares or water distribution mains of the Village
of East Aurora 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 principal backflow
prevention device.
(3)
Approved double-check valve assembly.
(4)
Approved single check valve
[Added 11-26-2007 by L.L. No. 10-2007]
SERVICE CONNECTION
The terminal end of a service connection from the Village
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.
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.
VILLAGE
The Village of East Aurora.
VILLAGE WATER SUPPLY
Approved water supply sold and delivered to consumers' premises
through the waterworks system of the Village of East Aurora.
WATER FOREMAN
The Water Foreman of the Public Works Department of the Village
of East Aurora, or his/her authorized representative.
WATER SUPERVISOR
The consumer, and/or owner of premises, and/or a person the
premises charged with the responsibility of complete knowledge and
understanding of the water supply piping within the premises and for
maintaining the consumer's water system free from cross connections
and other sanitary defects, as required by this chapter and all other
required regulations and laws.