[Adopted 9-1-1977 as L.L. No. 8-1977]
The purpose of this Article is to protect the village potable water supply system against contamination resulting from backflow.
A. 
Director. It shall be the duty and responsibility of the Director of the Department of Public Works of the village (hereinafter sometimes referred to as "the Director" or "the Director of Public Works") or his designated agent to enforce the provisions of this Article as herein provided.
B. 
Inspection. The Director of Public Works or his designated agent is authorized and empowered to enter any dwelling, dwelling unit, multifamily dwelling, industrial or commercial building, structure, enclosure or premises containing a well, swimming pool or underground sprinkler system, at any reasonable time, when in the judgment of the Director it is necessary to inspect the plumbing systems installed therein to prevent the possibility of pollution of the village water supply, provided that, except in the event of an emergency, with respect to the inspection of any residential dwelling or dwelling unit, consent to such inspection shall first be obtained from a person of suitable age and discretion therein or in control thereof.
C. 
Entrance onto premises. The owner, lessee or occupant of every such dwelling, building, structure, enclosure or premises shall give the Director or his designated agent free access thereto for the purpose of performing his duties under this Article. It shall be unlawful to refuse entrance or impede anyone authorized under this Article from entering, inspecting, examining or testing the plumbing system in such building or premises at all reasonable times upon the display of proper identification.
D. 
No liability. Except as may otherwise be provided by statute, local law or ordinance, no officer, agent or employee of the village charged with the enforcement of this Article shall render himself personally liable for any damage that may accrue to persons or property as a result of any act required or permitted in the discharge of his duties under this Article. No person who institutes or insists in the prosecution of a criminal proceeding under this Article shall be liable for damages hereunder unless he acted with actual malice and without reasonable grounds for believing that the person accused or prosecuted was guilty of an unlawful act or omission.
As used in this Article, the following terms shall have the meanings indicated:
AIRGAP
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.
APPROVED
Accepted by the Director and by the Nassau County Department of Health, where required, as meeting the applicable specification stated or cited in this Article or as suitable for the proposed use.
AUXILIARY SUPPLY
Any water source or system other than the village potable water supply that may be available in the building or premises.
BACKFLOW
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. Back siphonage is one type of "backflow."
BACKFLOW PREVENTER
A device or means to prevent backflow.
BACK SIPHONAGE
Backflow resulting from negative pressures in the distributing pipes of a potable water supply.
BAROMETRIC LOOP
A loop of pipe rising at least 35 feet, at its topmost point, above the highest fixture it supplies.
CHECK VALVE
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.
CONTAMINATION
See "pollution."
CROSS-CONNECTION
Any physical connection between a potable water supply and any waste pipe, soil pipe, sewer, drain or any unapproved source or system. Furthermore, it is any potable water supply outlet which is submerged or can be submerged in wastewater and/or other source of contamination. See "backflow" and "back siphonage."
DRAIN
Any pipe that carries wastewater or waterborne wastes in a building drainage system.
FIXTURE, PLUMBING
Installed receptacles, devices or appliances supplied with water or that receive or discharge liquids or liquid-borne wastes.
FLOOD-LEVEL RIM
The edge of the receptacle from which water overflows.
HAZARD, HEALTH
Any conditions, devices or practices in the water supply system and its operation which create or, in the judgment of the Director, 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 of location, design or construction, that regularly or occasionally may prevent satisfactory purification of the water supply or cause it to be polluted from extraneous sources.
HAZARD, PLUMBING
Any arrangement of plumbing, including piping and fixtures, whereby a cross-connection is created.
HYDROPNEUMATIC TANK
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.
INLET
The open end of the water supply pipe through which the water is discharged into the plumbing fixture.
PLUMBING SYSTEM
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 lines of the premises; and water-treating or water-using equipment.
POLLUTION
The presence of any foreign substance (organic, inorganic, radiological or biological) in water that tends to degrade its quality so as to constitute a hazard or impair the usefulness of the water.
REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTER
An assembly of differential valves and check valves, including an automatically opened spillage port to the atmosphere, designed to prevent backflow.
SURGE TANK
The receiving nonpressure vessel forming part of the airgap separation between a potable and an auxiliary supply.
VACUUM
Any pressure less than that exerted by the atmosphere.
VACUUM BREAKER, NONPRESSURE TYPE
A vacuum breaker designed so as not to be subjected to static line pressure.
VACUUM BREAKER, PRESSURE TYPE
A vacuum breaker designed to operate under conditions of static line pressure.
WATER, NONPOTABLE
Water that is not safe for human consumption or that is of questionable potability.
WATER, POTABLE
Water free from impurities in amounts sufficient to cause disease or harmful physiological effects. Its bacteriological and chemical quality shall conform to the requirements of the Public Health Service Drinking Water Standards or to the regulations of the public health authority having jurisdiction.
A. 
General. A potable water supply system shall be designed, installed and maintained in such manner as to prevent contamination from nonpotable liquids, solids or gases from being introduced into the potable water supply through cross-connections or any other piping connections to the system.
B. 
Cross-connections prohibited. 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, as approved by the authority having jurisdiction, suitable protective devices such as the reduced pressure zone back-flow preventer or equal are installed, tested and maintained to ensure proper operation on a continuing basis.
C. 
Interconnections. Interconnection between two or more public water supplies shall be permitted only with the approval of the Nassau County Department of Health.
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 health authority having jurisdiction.
E. 
Connections to boilers. Potable water connections to boiler feed water systems in which boiler water-conditioning chemicals are introduced shall be made through an airgap or provided with an approved backflow preventer located in the potable water line before the point where such chemicals are introduced.
F. 
Prohibited connections to fixtures and equipment. Connection to the potable water supply system for the following is prohibited unless protected against backflow by providing and maintaining an airgap or reduced pressure principle backflow preventer at the building service connection:
(1) 
Bidets.
(2) 
Operating, dissection, embalming and mortuary tables or similar equipment. In such installation the hose use for 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 airgap.
(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 jacket is entirely outside the piping or tank containing a toxic refrigerant, the inlet connection shall be provided with an approved double check valve assembly. 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 units contain more than 20 pounds of refrigerants.
H. 
Lawn sprinkler and irrigation systems. The supply pipe to a lawn sprinkler or irrigation system shall be equipped with an atmospheric vacuum breaker at least six inches above the highest sprinkler or discharge outlet of the system.
I. 
Protection of village potable water supply. The village potable water supply shall be protected against backflow and back siphonage by providing and maintaining an approved reduced pressure principle backflow preventer on the service line entering the buildings or premises under the following conditions:
(1) 
Building or premises having an auxiliary water supply.
(2) 
Building or premises with a swimming pool.
(3) 
Hospital, medical building and mortuary.
(4) 
Building or premises handling hazardous substances.
(5) 
Any other building or premises, in the opinion of the Director, where a hazardous substance could be introduced into the village potable water supply.
J. 
Double check-double gate valves. The Director may authorize installation of approved, double check-double gate valve assemblies with test cocks as protective devices against backflow in connections between a potable water system and other fluid systems which present no significant health hazard in the judgment of the Director.
K. 
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 10 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 at other outlets.
L. 
Approval of devices. Before any device for the prevention of backflow or back siphonage is installed, it shall first be approved in writing by the Director. In addition, approval by the Nassau County Department of Health is required in those instances where an airgap 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.
M. 
Installation of devices. All types of backflow control devices shall be installed in accordance with the manufacturer's recommendations. All backflow preventing devices shall be accessibly located.
A. 
General requirements. It shall be the responsibility of 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 back-flow devices.
B. 
Backflow preventers. Periodic testing and inspection schedules shall be established by the Director for all backflow preventers. The testing shall be performed by an approved plumber and the device(s) shall bear an inspection certification tag indicating the date of inspection and the name and address of the plumber who conducted such inspection. Testing procedures shall be in accordance with the manufacturer's instructions and test results shall be submitted to the Director.
[Amended 3-18-1982 by L.L. No. 2-1982; 11-3-2016 by L.L. No. 9-2016]
A. 
Issuance of notice. The owner, lessee or occupant of any dwelling, dwelling unit, multifamily dwelling, industrial or commercial building, structure, enclosure or premises wherein a violation of this article is found shall be notified of such violation in writing. The notice shall state that the violation must be cured within 30 days of the date of the notice and that failure to comply shall result in penalties and termination of water service.
B. 
Service of notice. Notices issued pursuant to this article may be served by delivering a copy of same to and leaving it with the owner, lessee or occupant of the dwelling, building, structure, enclosure or premises wherein the violation is found. If the notice cannot be served with due diligence, then such notice may be served by posting the same upon the dwelling, building, structure, enclosure or premises where such violation is found and also by depositing a copy thereof in a sealed, postpaid wrapper addressed to the owner, lessee or occupant thereof at his last known place of residence.
C. 
Fines. Any person or entity served with a notice as prescribed herein and who shall fail to comply with said notice for a period of 30 days or more shall be served with a final notice of violation and order to comply, marked as such, assessing a fine of $500 and advising them that failure to correct the violation within 30 days of the final notice shall result in termination of water service to the affected property or properties.
D. 
Termination of water service and additional fines. Upon the failure of an owner, lessee or occupant to correct or remove a violation of this article following receipt of a final notice of violation and order to comply, the Director of Public Works shall cause the water service to the dwelling, building, structure, enclosure or premises wherein such violation is found to be terminated. A written notice of water service termination, marked as such, shall be served to the responsible person or entity on or before the date when water service is actually terminated. Additionally, the person or entity responsible for the violation shall be assessed a second fine of $1,500, which fine shall be stated on the notice of water service termination.