[Amended 6-21-2000 by L.L. No. 30-2000]
The Board of Water Commissioners or its designated agent shall
inspect the plumbing in every building or premises in this Village
at prescribed intervals to ensure that the plumbing system was installed
and maintained in such a manner as to safeguard the potable water
supply by preventing backflow into the potable water supply system.
The Board of Water Commissioners or its designated agent shall notify
or cause to be notified, in writing, the owner or authorized agent
of the owner of any such building or premises, to correct, within
a reasonable time set by the Board of Water Commissioners or its designated
agent, any plumbing installed or existing contrary to or in violation
of this article and which, in its judgment, may, therefore, permit
the pollution of the Village water supply or otherwise adversely affect
the public health.
[Amended 6-21-2000 by L.L. No. 30-2000]
The Board of Water Commissioners or its designated agent shall
have the right of entry into any building, during reasonable hours,
for the purpose of making inspections of the plumbing systems installed
in such building or premises, provided that, with respect to the inspection
of any single-family dwelling, consent to such inspection shall first
be obtained from a person of suitable age and discretion therein or
in control thereof.
The Board of Water Commissioners or its designated agent may
require the owner of any multiple dwelling or commercial or industrial
building to designate some qualified person to be in charge of the
water supply for that building.
When used in this article, unless otherwise indicated, the following
words shall have the meanings indicated:
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 the receptacle.
Accepted by the Village and by the Department of Health,
where required, as meeting an applicable specification stated or cited
in this article or as suitable for the proposed use.
Any water source or system other than the Village water supply
which may be available in the building or on the premises.
The flow of water or other liquids, mixtures or substances
into the distributing pipes of a potable supply of water from any
source or sources other than its intended source.
A device or means to prevent backflow.
Backflow resulting from negative pressures in the distributing
pipes of the potable water supply.
A loop of pipe rising approximately 35 feet, at its topmost
point, above the highest fixture it supplies.
A self-closing device which is designed to permit the flow
of fluids in one direction and to close if there is a reversal of
flow.
See "pollution."
Any physical connection between a potable water supply and
any waste pipe, soil pipe, sewer, drain or any unapproved source or
system. Furthermore, a "cross-connection" is any potable water supply
outlet which is submerged or can be submerged in wastewater and/or
any other source of contamination. See "backflow" and "backsiphonage."
Any pipe which carries wastewater or waterborne wastes in
a building drainage system.
Installed receptacles, devices or appliances supplied with
water or which receive or discharge liquids or liquid-borne wastes.
The edge of the receptacle from which water overflows.
Any conditions, devices or practices in the water supply
system and its operation which creates or may create a danger to the
health and well-being of the water consumer. An example of a "health
hazard" is a structural defect in the water supply system, whether
in the location, design or construction, which may regularly or occasionally
prevent satisfactory purification of the water supply or cause it
to be polluted from extraneous sources.
Any arrangement of plumbing, including piping and fixtures,
whereby a cross-connection is created.
A pressure vessel in which air pressure acts upon the surface
of the water contained within the vessel, pressurizing the water distribution
piping connected to the vessel.
The open end of the water supply pipe through which the water
is discharged into the plumbing fixture.
Includes the water supply and distribution pipes, plumbing
fixtures and traps; soil, waste and vent pipes; building drains and
building sewers, including their respective connections, devices and
appurtenances within the property line of the premises; and water-treating
or water-using equipment.
The presence of any foreign substance (organic, inorganic,
radiological or biological) in water which tends to degrade its quality
so as to constitute a hazard or impair the usefulness of the water.
An assembly of differential valves and check valves, including
an automatically opened spillage port to the atmosphere designed to
prevent backflow.
The receiving, nonpressure vessel forming part of the air
gap separation between a potable and an auxiliary supply.
Any pressure less than that exerted by the atmosphere.
A vacuum breaker which is designed so as not to be subjected
to static line pressure.
A vacuum breaker designed to operate under conditions of
static line pressure.
The Village of Mineola and the Board of Water Commissioners
and employees of said Village vested with the authority and responsibility
for the enactment and enforcement of this article.
[Amended 6-21-2000 by L.L. No. 30-2000]
Water which is not safe for human consumption or which is
of questionable potability.
Any water which complies with the provisions of 10 NYCRR
Part 5 (Drinking Water Supplies) of the Administrative Rules and Regulations
of the New York State Commissioner of Health.[1]
A.
Generally. A potable water supply system shall be designed, installed
and maintained in such a manner as to prevent contamination from nonpotable
water, liquids, solids or gases being introduced into the potable
water supply through cross-connections or any other piping connections
to the system.
B.
Cross-connections prohibited; exception. Cross-connections between
potable water systems and other systems or equipment containing water
or other substances of unknown or questionable safety are prohibited,
except when and where, and as approved by the New York State Commissioner
of Health pursuant to the New York State Sanitary Code, suitable protective
devices such as the reduced-pressure-zone backflow preventer or equal
are installed, tested and maintained to ensure proper operation on
a continuing basis.[1]
C.
Interconnections. Interconnection between two or more public water
supplies shall be permitted only with the written approval of the
Board of Water Commissioners and the New York State Department of
Health.
[Amended 6-21-2000 by L.L. No. 30-2000]
D.
Individual water supplies. Cross-connections between an individual
water supply and a potable public supply shall not be made unless
specifically approved by the Board of Water Commissioners or its designated
agent and the New York State Department of Health.
[Amended 6-21-2000 by L.L. No. 30-2000]
E.
Connections to boilers. Potable water connections to boiler feed
water systems shall be made through an air gap or provided with an
approved backflow preventer (reduced-pressure-principle or double-check
double-gate valves).
F.
Prohibited connections to fixtures and equipment. Connection to the potable water supply system for the following is prohibited, unless protected against backflow in accordance with Subsection H or as set forth as follows:
(1)
Bidets.
(2)
Operating, dissection, embalming and mortuary tables or similar equipment.
In such installation the hose used for the water supply shall terminate
at least 12 inches away from every point of the table or attachments.
(3)
Pumps for nonpotable water, chemicals or other substances. Priming
connections may be made only through an air gap.
(4)
Building drainage, sewer or vent systems.
(5)
Any other fixture of similar hazard.
G.
Refrigerating unit condensers and cooling jackets. Except where potable
water provided for a refrigerator condenser or cooling jack is entirely
outside the piping or tank containing a toxic refrigerant and two
separate thicknesses of metal separate the refrigerant from the potable
water supply, an inlet connection shall be provided with an approved
check valve. Also, adjacent to and at the outlet side of the check
valve, an approved pressure-relief valve, set to relieve at five pounds
per square inch above the maximum water pressure at the point of installation,
shall be provided if the refrigeration unit contains more than 20
pounds of refrigerants.
H.
Protection against backflow and backsiphonage.
(1)
Water outlets. A potable water system shall be protected against
backflow and backsiphonage by providing and maintaining at each outlet:
(a)
Air gap. An air gap, as specified in Subsection H(2), between the potable water outlet and the flood-level rim of the fixture it supplies or between the outlet and any other source of contamination; or
(b)
Backflow preventer. An approved backflow preventer device or
vacuum breaker to prevent the drawing of contamination into the potable
water system.
(2)
Minimum required air gap.
(a)
How measured. The minimum required air gap shall be measured
vertically from the lowest end of a potable water outlet to the flood
rim or line of the fixture or receptacle into which it discharges.
(b)
Size. The minimum required air gap shall be twice the effective
opening of a potable water outlet, unless the outlet is a distance
less than three times the effective opening away from a wall or similar
vertical surface, in which case the minimum required air gap shall
be three times the effective opening of the outlet. In no case shall
the minimum required air gap be less than shown in the following table:
|
Minimum Air Gaps for Generally Used Plumbing Fixtures
| |||
|---|---|---|---|
|
Minimum Air Gap
(inches)
| |||
|
Fixture
|
When Not Affected by Near Wall(1)
|
When Affected by Near Wall(2)
| |
|
Lavatories and other fixtures with effective openings not greater
than 1/2 inch in diameter
|
1.0
|
1.50
| |
|
Sinks, laundry trays, gooseneck bath faucets and other fixtures
with effective openings not greater than 3/4 inch in diameter
|
1.5
|
2.25
| |
|
Over-rim bath fillers and other fixtures with effective openings
not greater than 1 inch in diameter
|
2.0
|
3.0
| |
|
Drinking water fountains: single orifice, 7/16 (0.437) inch
in diameter, or multiple orifices having a total area of 0.150 square
inch (area of circle 7/16 inch in diameter)
|
1.0
|
1.5
| |
|
Effective openings greater than 1 inch
|
(3)
|
(4)
| |
|
NOTES:
| ||
|---|---|---|
|
(1)
|
Sidewalls, ribs or similar obstructions do not affect air gaps
when spaced from the inside edge of the spout opening a distance greater
than three times the diameter of the effective opening for a single
wall, or a distance greater than four times the diameter of the effective
opening for two intersecting walls.
| |
|
(2)
|
Vertical walls, ribs or similar obstructions extending from
the water surface to or above the horizontal plane of the spout opening
require a greater air gap when spaced closer to the nearest inside
edge of spout opening than specified in Note (1) above. The effect
of three or more such vertical walls or ribs has not been determined.
In such cases, the air gap shall be measured from the top of the wall.
| |
|
(3)
|
Two times diameter of effective opening.
| |
|
(4)
|
Three times diameter of effective opening.
| |
(3)
Approval of devices. Before any device for the prevention of backflow
or backsiphonage is installed, it shall have first been approved,
in writing, by the Board of Water Commissioners or its designated
agent. In addition, Department of Health approval is required in those
instances where an air gap or control device for which an acceptable
list has been established by the New York State Department of Health
is utilized to protect the water supply from a hazardous substance.
Devices installed in a building potable water supply distribution
system for protection against backflow shall be maintained in good
working condition by the person or persons responsible for the maintenance
of the system. The Board of Water Commissioners or its designee shall
inspect annually such devices and, if found to be defective or inoperative,
shall immediately notify the owner, in writing, to immediately repair
or replace the defective or inoperative device.
[Amended 6-21-2000 by L.L. No. 30-2000]
(4)
Installation of devices.
(a)
Vacuum breakers. Vacuum breakers shall be installed with the
critical level at least six inches above the flood-level rim of the
fixture they serve and on the discharge side of the last control valve
to the fixture. No shutoff valve or faucet shall be installed beyond
the vacuum breaker. For closed equipment or vessels, such as pressure
sterilizers, the top of the vessel shall be treated as the flood-level
rim but a check valve shall be installed on the discharge side of
the vacuum breaker.
(b)
Reduced-pressure-principle backflow preventer. A reduced-pressure-principle-type
backflow preventer may be installed, subject to full static pressure.
(c)
Devices of all types. Backflow- and backsiphonage-preventing
devices shall be accessibly located, preferably in the same room with
the fixture they serve. Installation in utility or service spaces,
provided that they are readily accessible, is also permitted.
(5)
Tanks and vats below rim supply.
(a)
Where a potable water outlet terminates below the rim of a tank
or vat and the tank or vat has an overflow of a diameter not less
than that given in the table below, the overflow pipe shall be provided
with a gap as close to the tank as possible.
|
Sizes of Overflow Pipes for Water Supply Tanks
| ||
|---|---|---|
|
Maximum Capacity of Water Supply Line to Tank
(gallons per minute)
|
Diameter of Overflow Pipe
(inches in diameter)
| |
|
0 to 50
|
2
| |
|
50 to 150
|
2 1/2
| |
|
100 to 200
|
3
| |
|
200 to 400
|
4
| |
|
400 to 700
|
5
| |
|
700 to 1,000
|
6
| |
|
Over 1,000
|
8
| |
(b)
The potable water outlet to the tank or vat shall terminate
a distance not less than 1 1/2 times the height to which water
can rise in the tank above the top of the overflow. This level shall
be established at the maximum flow rate of the supply to the tank
or vat and with all outlets except the air gap overflow outlet closed.
(c)
The distance from the outlet to the higher water level shall
be measured from the critical point of the potable water supply outlet.
(6)
Protective devices required.
(a)
The design criteria for physical connection control devices
shall be as shown in the table below:
|
Design Criteria for Physical Connection Control Devices
| |||||||
|---|---|---|---|---|---|---|---|
|
Control Devices
| |||||||
|
Conditions
|
A.G.
|
R.P.D.
|
D.C.A.
|
A.V.B.
|
P.V.B.
| ||
|
Any physical connection which may be subject to back pressure
involving:
| |||||||
|
Hazardous substances*
|
X
|
X
| |||||
|
Nonhazardous substances**
|
X
|
X
|
X
| ||||
|
Any physical connection not subject to back pressure involving:
| |||||||
|
Hazardous substances*
|
X
|
X
|
X
|
X
| |||
|
Nonhazardous substances**
|
X
|
X
|
X
|
X
|
X
| ||
|
NOTES:
| |||
|---|---|---|---|
|
A.G.
|
=
|
air gap
| |
|
R.P.D.
|
=
|
reduced-pressure device
| |
|
D.C.A.
|
=
|
double-check valve assembly
| |
|
A.V.B.
|
=
|
atmospheric vacuum breaker
| |
|
P.V.B.
|
=
|
pressure vacuum breaker
| |
|
*
|
A hazardous substance includes sewage, lethal chemicals or other
substances which, if introduced into the public water supply system,
would or may endanger the health of the consumer.
| ||
|
**
|
A nonhazardous substance would not endanger the health of the
consumer, but would be a nuisance if introduced into the public water
supply system.
| ||
(b)
The Board of Water Commissioners or its designee shall determine
the condition of the connection in accordance with the categories
listed in the above table and shall determine what type of control
device is required. Only approved devices shall be utilized.
[Amended 6-21-2000 by L.L. No. 30-2000]
(c)
Approved devices to protect against backflow and backsiphonage
shall be installed at all fixtures and equipment where backflow and/or
backsiphonage may occur and where a minimum air gap cannot be provided
between the water outlet to the fixture or equipment and its flood-level
rim.
(d)
Connections not subject to back pressure. Where a water connection
is not subject to back pressure, a nonpressure-type vacuum breaker
shall be installed on the discharge side of the last valve on the
line serving the fixture or equipment. A list of some conditions requiring
protective devices of this kind is given in the table below:
|
Cross-Connections Where Protective Devices are Required
and Critical Level (C-L) Setting for Vacuum Breakers*
| ||
|---|---|---|
|
Fixture or Equipment
|
Method of Installation
| |
|
Aspirators and ejectors
|
C-L at least 6 inches above flood level of receptacle served
| |
|
Dental units
|
On models without built-in vacuum breakers, C-L at least 6 inches
above flood-level rim of bowl
| |
|
Dishwashing machines
|
C-L at least 6 inches above flood level of machine; install
on both hot and cold water supply line
| |
|
Flushometers (closet and urinal)
|
C-L at least 6 inches above top of fixture supplies
| |
|
Garbage can cleaning machine
|
C-L at least 8 inches above flood level of machine; install
on both hot and cold water supply lines
| |
|
Hose outlets
|
C-L at least 6 inches above highest point on hose line
| |
|
Laundry machines
|
C-L at least 6 inches above flood level of machine; install
on both hot and cold water supply lines
| |
|
Lawn sprinklers
|
C-L at least 12 inches above highest sprinkler or discharge
outlet
| |
|
Steam tables
|
C-L at least 6 inches above flood level
| |
|
Tanks and vats
|
C-L at least 6 inches above flood-level rim or line
| |
|
Trough urinals
|
C-L at least 30 inches above perforated flush pipe
| |
|
Flush tanks
|
Equip with approved ball cock. Where ball cock touches tank
water, equip with vacuum breaker at least 1 inch above overflow outlets.
Where ball cock does not touch tank water, install ball cock outlet
at least 1 inch above overflow outlet or provide vacuum breaker as
specified above
| |
|
Hose bibbs (where aspirators or ejectors could be connected)
|
C-L at least 6 inches above flood level of receptacle served
| |
|
NOTES:
| ||
|---|---|---|
|
*
|
"Critical level" (C-L) is defined as the level to which the
vacuum breaker may be submerged before backflow will occur. Where
the C-L is not shown on the preventer, the bottom of the device shall
be taken as the C-L.
| |
(e)
Connections subject to back pressure. Where a potable water
connection is made to a line, fixture, tank, vat, pump or other equipment
with a hazard of backflow or backsiphonage where the water connection
is subject to back pressure and an air gap cannot be installed, the
installation of an approved reduced-pressure-principle backflow preventer
shall be required. A partial list of such connections is shown in
the table below:
|
Partial List of Cross-Connections Which May Be Subject
to Back Pressure
| |
|---|---|
|
Chemical lines
| |
|
Dock water outlets
| |
|
Industrial water supplies
| |
|
Industrial process waterlines
| |
|
Pressure tanks
| |
|
Pumps
| |
|
Steam lines
| |
|
Swimming pools
| |
|
Tanks and vats, bottom inlets
| |
|
Hose bibbs
|
(7)
Barometric loop. Water connections where an actual or potential backsiphonage hazard exists may, in lieu of devices specified in Subsection H(6), be provided with a barometric loop. Barometric loops shall precede the point of connection.
(8)
Double-check double-gate valves. Approved double-check double-gate
valve assemblies with test cocks may be installed as protective devices
against backflow in connections between a potable water system and
other nonhazardous substances which would not endanger the health
of the consumer, but would be a nuisance if introduced into the public
water supply system.
(9)
Low-pressure cutoff required on booster pumps. When a booster pump
is used on a water pressure booster system and the possibility exists
that a positive pressure of 20 pounds per square inch or less may
occur on the suction side of the pump, there shall be installed a
low-pressure cutoff on the booster pump to prevent the creation of
a vacuum or negative pressure on the suction side of the pump, thus
cutting off water to other outlets.
A.
General requirements. It shall be the responsibility of the building
and premises owners to maintain all backflow preventers and vacuum
breakers within the building or on the premises in good working order
and to make no piping or other arrangements for the purpose of bypassing
backflow devices.
B.
Backflow preventers. Annual testing and inspection schedules shall
be established by the Board of Water Commissioners or its designated
agent for all backflow prevention devices. These devices should be
inspected frequently after the initial installation to assure that
they have been installed properly and that debris resulting from the
installation has not interfered with the functioning of the device.
The testing procedures shall be in accordance with the manufacturer's
instructions when approved by the Board of Water Commissioners or
its agent. Testing shall be conducted by an approved plumber, and
the device shall bear an inspection certification tag indicating the
date of inspection and the name and address of the plumber who conducted
such inspection.
[Amended 6-21-2000 by L.L. No. 30-2000]
C.
Commercial buildings. All commercial buildings within the Village
of Mineola shall be required to install a double-check valve device
at the meter.
[Amended 6-21-2000 by L.L. No. 30-2000]
A.
Notice of violation; failure to abate. The Board of Water Commissioners
or its agent shall notify, by written notice, the owner or authorized
agent of the owner of the building or premises in which there is found
a violation of this article of such violation. The Board of Water
Commissioners or its agent shall set a reasonable time for the owner
to have the violation removed or corrected. Upon failure of the owner
to have the defect corrected by the end of the specified time interval,
the Board of Water Commissioners may, if in its judgment a potential
health hazard exists, cause the water service to the building or premises
to be terminated.
B.
Fine. The owner or authorized agent of the owner responsible for the maintenance of the plumbing systems and use of water on the premises or in the buildings thereon who knowingly permits a violation of any of the provisions of this article to remain uncorrected after the expiration of time set by the Board of Water Commissioners or its agent shall, upon conviction of the court, be subject to and required to pay a fine as set forth in § 1-6 of this Code, and each day of failure to comply with the requirements of this article after the specified time provided under Subsection A of this section shall constitute a separate violation.[1]
