For the purpose of this chapter, 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 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, 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 bushings shall be bronze
or other noncorrodible, nonsticking material, machined for easy, dependable
operation. The closure element (e.g., clapper) shall be internally
weighted to 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 check valve. Shall
be New York State Department of Health (NYSDOH) approved backflow
prevention device/assemblies.
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 to 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. Shall be New York State Department of Health (NYSDOH)
approved backflow prevention device/assemblies.
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, City
of Schenectady or the Town of Rotterdam. In determining what constitutes
an approved water supply, the Department of Public Health of the State
of New York (herein called "NYSDOH") shall have the final judgment
as to its safety and potability.
CONSUMER
Any person to whom water is sold and furnished from the Town
of Rotterdam.
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.
CROSS CONNECTION
Any unprotected connection between any part of the Town 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.
DEPARTMENT OF PUBLIC WORKS
Department Head, Senior Building Inspector/Building Inspector,
Town Engineer, Senior Water Treatment Plant Operator or authorized
representative.
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 Schenectady, 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 Town of
Rotterdam 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
(NYSDOH approved).
(3)
Approved double-check-valve assembly (NYSDOH approved).
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.
TOWN
The Town of Rotterdam.
TOWN WATER SUPPLY
The approved water supply sold and delivered to consumer's
premises through the Water Works System of the Town of Rotterdam.
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.