The purpose of this chapter is:
A. To protect the public drinkable water supply of that portion the
Town of Royalton outside the Village of Middleport from the possibility
of contamination by isolating within its customers' internal distribution
system(s) or its customers' private water system(s) such contaminations
or pollutants which could backflow into the public water supply system;
and
B. To comply with the requirements of the New York State Sanitary Code
§ 5-1.31.
The Town Superintendent shall be responsible for the protection
of all Town of Royalton water distribution systems from contamination
due to the backflow of contaminants through the water service connection.
If, in the judgment of said Superintendent, an acceptable backflow
prevention device is required at any Town water service connection
to any customer's premises, for the safety of the water system, the
Superintendent or his designated agent shall give notice in writing
to said customer to install such acceptable backflow prevention device
at each service connection to this premises. The customer shall install
at such reasonable time as determined by the Town Water and Sewer
Superintendent, such approved device or devices at his own expense;
and failure, refusal or inability on the part of the customer to install
said device or devices shall immediately constitute a ground for discontinuing
water service to the premises until such device or devices have been
properly installed.
As used in this chapter, the following terms shall have the
meanings indicated:
ACCEPTABLE BACKFLOW PREVENTION DEVICE
An acceptable air gap, reduced-pressure-zone device or double
check valve assembly as 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 FACILITY
One in which substances are present which, if introduced
into the public water supply system, could be a nuisance to other
water customers, but may not adversely affect human health. Typical
examples of such substances are: food-grade dyes, hot water, stagnant
water from fire lines in which no chemical additives are used, etc.
AIR GAP
The 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.
APPROVED
Accepted by the Town of Royalton Water and Sewer Superintendent
as meeting an applicable specification stated or cited in this chapter
or as suitable for the proposed use.
AUXILIARY WATER SUPPLY
Any water supply on or available to the premises other than
a Town of Royalton approved public water supply. These auxiliary waters
may include water from another purveyor's public potable water supply
or any natural source(s) such as a well, spring, stream, rain water,
etc., or used waters. These waters may be contaminated or they may
be objectionable and constitute an unacceptable water source over
which the water purveyor does not have sanitary control.
BACKFLOW
A flow condition, induced by a differential in pressure,
that causes the flow of water or other liquids and/or gasses into
the distribution pipes of any Town of Royalton water supply system
from any source other than its intended source.
CERTIFIED TESTER
That individual or firm approved to accomplish the necessary
inspections and operational tests of backflow prevention devices.
CONTAMINATION
The presence in water of a substance that tends to degrade
its quality.
CROSS-CONNECTION
Any connection which allows or potentially allows for the
intermingling of water from any auxiliary water supply or any substance
from any other unauthorized source with water from a Town of Royalton
approved public water supply.
CUSTOMER
A water user served by a Town of Royalton water supply system.
CUSTOMER'S WATER SYSTEM
The piping used to convey water supplied by a Town of Royalton
water supply system throughout a customer's facility. The system shall
include all those parts of the piping beyond the control point of
the Town Water Department. 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 Town or District distribution system.
DEGREE OF HAZARD
Whether a facility is rated as "hazardous" or "aesthetically
objectionable."
DOUBLE CHECK VALVE ASSEMBLY, ACCEPTABLE
An 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 FACILITY
One 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 plants, chemical plants, hospitals, mortuaries.
PUBLIC WATER SUPPLY SYSTEM
The Town of Royalton water supply 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, ACCEPTABLE
A 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.
SUPERINTENDENT
The Superintendent of the Town of Royalton Water and Sewer
Department or other person duly authorized by the Town Board to act
in such capacity.