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
materials which will seal 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 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 check valve.
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.
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 or the City of Amsterdam.
In determining what constitutes an approved water supply, the Department of
Public Health of the State of New York (herein called "State Health Department")
shall have the final judgment as to its safety and potability.
CITY
The City of Amsterdam.
CITY WATER SUPPLY
An approved water supply sold and delivered to consumer's premises
through the waterworks system of the City of Amsterdam.
CONSUMER
Any person to whom water is sold and furnished from the City of Amsterdam.
CONTAMINATION
An impairment of the quality of the city 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 Montgomery County Health Officer, his assistants or authorized
deputies acting as or any other person appointed as Health Officer of the
County of Montgomery.
CROSS CONNECTION
Any unprotected connection between any part of the city 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 Montgomery,
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 City of Amsterdam
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 city water supply
at its point of delivery to the consumer. If a meter is installed, "service
connection" means the downstreet 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 water manager or any other authorized representative determined
by the Water Commissioners of the City of Amsterdam.
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.