[Adopted 10-8-1986 by L.L.
No. 3-1986]
The purposes of this article are:
A.
To protect the public potable water supply of the Town
of Rosendale from the possibility of contamination by isolating, within its
customer's internal distribution system or its customer's private water system,
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 regulations are to be reasonably interpreted. It is the intent of
these regulations to recognize that there are varying degrees of hazard and
to apply the principle that the degree of protection should be commensurate
with the degree of hazard. Where a relationship between the Commission and
the individual customer is mentioned, it should be understood that the Commission
is acting on behalf of the municipality in which the customer is located.
A.
AIR GAP SEPARATION
APPROVED CHECK VALVE
APPROVED DOUBLE-CHECK-VALVE ASSEMBLY
APPROVED REDUCED-PRESSURE PRINCIPAL BACKFLOW PREVENTION DEVICE
APPROVED WATER SUPPLY
ATMOSPHERIC VACUUM BREAKER
AUXILIARY WATER SUPPLY
CONSUMER
CONTAMINATION
COMMISSIONER
COUNTY HEALTH OFFICER
CROSS-CONNECTION
NONTOXIC SUBSTANCE
PERSON
PREMISES
PROTECTIVE DEVICE
SERVICE CONNECTION
TOWN
TOWN WATER SUPPLY
TOXIC SUBSTANCE
For the purpose of this article, unless it is plainly
evident from the context that a different meaning is intended, certain terms
used herein are defined as follows:
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.
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 or otherwise internally equipped to
promote rapid and positive closure in all sizes where this feature is obtainable.
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 water tightness
of each check valve. This device shall be approved by the New York State Health
Department and on their list of approved devices.
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. This device shall be approved by the New York State Health Department
and on their list of approved devices.
Any water supply approved by, or under the public health supervision
of, a public health agency of the State of New York, the County of Ulster
or the Town of Rosendale Water District. In determining what constitutes an
"approved water supply," the Department of Public Health of the State of New
York (herein called the "State Health Department") shall have the final judgment
as to its safety and potability.
A New York State Health Department approved device which allows atmospheric
pressure to enter a line under a back siphonage condition through a gravity
operated vent valve.
Any water supply on or available to the premises other than the Town
water supply.
Any person to whom water is sold and furnished from the Town of Rosendale
Water District.
An impairment of the quality of the district 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.
The Board of Water Commissioners and designated agent of the Town
of Rosendale, or his/her authorized representatives.
The Ulster County Health Officer, his/her assistants or authorized
deputies acting as, or any other person appointed as, Health Officer of the
County of Ulster.
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.
Any substance of a nonpoisonous nature that may create a moderate
or minor hazard to the water supply system.
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 Ulster, any
special purpose district and any officer or agent thereof.
Integrated land area, including improvements thereon, undivided by
public thoroughfares or water distribution mains of the Town of Rosendale
Water District, where all parts of the premises are operated under the same
management and for the same purpose.
Any of the following devices:
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.
The Town of Rosendale Water District.
An approved water supply sold and delivered to consumers' premises
through the Waterworks System of the Town of Rosendale Water District.
Any substance (liquid, solid or gaseous), including raw sewage and
lethal substances, or any substance suspected of being hazardous to human
health that, when introduced into the water supply system, creates or may
create a danger to the health and well being of the consumer.
B.
"Shall" is mandatory; "may" is permissive.
A.
Auxiliary water supply. Each service connection from
the Town water supply for furnishing water to premises having an auxiliary
water supply shall be protected against backflow of water from the premises
into the Town water supply.
(1)
If the auxiliary water supply is handled in a separate
piping system with no known cross-connection, the Town water supply shall
be protected by an approved double-check-valve assembly installed at the service
connection to the premises. When the auxiliary water supply may be contaminated,
the Superintendent may order the Town water supply protected by an air gap
separation or an approved reduced-pressure principle backflow prevention device
installed at the service connection.
(2)
If the auxiliary water supply is handled in a separate
piping system and cross-connections are known to exist between the Town water
supply and the auxiliary water supply which cannot presently be eliminated,
the Town water supply shall be protected by an approved reduced-pressure principle
flow prevention device installed at the service connection to the premises.
When the auxiliary supply may be contaminated, the Superintendent may order
the Town water supply protected by an air gap separation installed at the
service connection.
B.
Toxic or hazardous substances. Should a facility be rated
hazardous, a reduced-pressure zone device would be required independent of
a separate system handling the auxiliary water system. The Town would also
require a reduced-pressure zone device if the facility were rated nonhazardous
and the auxiliary water system did not meet the water quality requirements
of Part 5 of the Sanitary Code.
C.
Nonhazardous substances. At the service connection to
any premises on which a substance that would be objectionable, but not necessarily
hazardous to health, if introduced into the Town water supply, is handled
in such a manner as to constitute a cross-connection, the Town water supply
shall be protected by an approved double-check-valve assembly.
D.
Nonhazardous to hazardous. In the event that a facility
is rated nonhazardous and on such a date becomes hazardous, notification of
at least 30 days shall be given to the Superintendent before the change takes
place. Protection by the use of a protective device as required on hazardous
substances shall be installed.
E.
Sewage treatment plant and pumping stations. At the service
connection to any sewage treatment plant or sewage pumping station, the Town
water supply shall be protected by an air gap separation. The air gap shall
be located as close as practicable to the service connection, and all piping
between the service connection and the receiving tank shall be entirely visible.
If these conditions can not be reasonably met, the Town water supply shall
be protected with an approved reduced-pressure principal backflow prevention
device, provided that this alternative is acceptable to both the Superintendent
and the County Health Officer. A final decision in this matter shall be made
by the State Health Department.
F.
Fire system.
(1)
At the service connection to any premises in which a
fire protection system is installed, the Town water supply shall be protected
based on the water source and arrangement of supplies in accordance with the
following classifications:
(a)
Class 1.
[1]
Direct connection from public water mains only; no pumps,
tanks or reservoirs; no physical connections from auxiliary water supplies;
no antifreeze or other additives of any kind; all sprinkler drains discharging
to atmosphere, dry wells or other safe outlets.
[2]
Protection: double-check-valve assembly if not already
installed in the system.
(d)
Class 4.
(e)
Class 5.
[1]
Directly supplied from public mains and interconnected
with auxiliary supplies, such as pumps taking suction from reservoirs exposed
to contamination or rivers and ponds; driven wells; mills or other industrial
water systems; or when antifreeze or other industrial water systems; or where
antifreeze or other additives are used.
[2]
Protection: air gap or reduced-pressure principle backflow
prevention device.
(2)
Lawn sprinkling systems. At the service connection to
any permanently installed lawn sprinkling system, the Town water supply shall
be protected by an approved double-check-valve assembly. If the lawn sprinkling
system handles liquid fertilizers or other chemicals, the Town water supply
shall be protected by an approved reduced-pressure principle backflow prevention
device.
(3)
Residential water supply. All future construction and/or
repair to individual residential customers shall be required to have installed
a double-check-valve assembly. All laboratory faucets and all ordinary hose
bibbs shall be installed with an atmospheric vacuum breaker.
A.
Consumer responsibility. It shall be the responsibility
of each consumer at his/her own expense to furnish, install and keep in good
working order and safe condition any and all protective devices required in
this article. The Town shall not be responsible for any loss or damage directly
or indirectly resulting from or caused by the improper or negligent installation,
operation, use, repair or maintenance of or interfering with any protective
service by any consumer or any other person.
B.
Conflicts. Whenever two or more conditions exist on any
premises for the correction of which different protective devices are required
in this article, the consumer shall be required only to install the protective
device which, in the opinion of the Superintendent and County Health Officer,
affords the maximum protection to the Town water supply.
A.
The consumer on whose premises any protective device
is installed shall have each such device inspected annually. If successive
inspections disclose repeated failures in the operation of any device, the
Superintendent may require more frequent inspections. Each device shall be
repaired, overhauled or replaced at the expense of the consumer whenever it
is found to be defective.
B.
Records of such test, repairs and overhauls shall be
kept, and a copy of such records shall be forwarded to the Superintendent
on an annual basis.
C.
The Superintendent shall be the designated public official
empowered to decide whether or not said inspections required herein are performed
properly. If, following demand therefor, the consumer fails to have any of
the inspections made as required herein or to make the above-described records
available, the Superintendent shall have the right to inspect the device,
and the consumer shall pay the cost thereof.
A.
No water service connection shall be installed on the
premises of any consumer unless the Town water supply is protected as required
by this article.
B.
Delivery of water to the premises of any consumer may
be discontinued by the Superintendent if any protective device required by
this article has not been installed, inspected, tested and maintained or is
defective or has been removed or bypassed.
C.
Delivery of water shall be discontinued immediately and
without notice to the consumer if the Superintendent or County Health Officer
determines that the Town water supply is being contaminated or is in immediate
danger of contamination; a protective device required by this article has
not been installed or is defective or has been removed or bypassed; and the
consumer cannot immediately be located. Delivery of water shall not be resumed
until any protective device required by this article and approved by the Superintendent
has been properly installed or until conditions at the consumer's premises
causing the contamination or danger of contamination have been abated or corrected
to the satisfaction of the Superintendent and County Health Officer.
D.
Except as provided in Subsection C, delivery of water shall not be discontinued until written notice thereof has been given to the consumer. The notice shall state the conditions or defects which must be corrected; the manner in which the stated conditions or defects are to be corrected; and the date on or after which delivery of water will be discontinued, which shall not be less than 15 nor more than 90 days following the date of delivery of mailing of the notice. The Superintendent may grant the consumer an extension of an additional period not to exceed 90 days if he or she determines the consumer has exercised due diligence but has been unable to comply with the notice within the time originally allowed. The notice shall be given by delivering the same to the consumer, the manager or agent thereof, or to any person in charge of or employed in the place of business of the consumer, or, if the consumer has no place of business, then at the place of residence of the consumer, if known, or by leaving the notice at either the place of business or the residence of the consumer. If the consumer cannot be found and service of the notice shall be mailed, postage fully prepaid, addressed to the consumer at the place of business or residence set forth in the application of the consumer for water service in the records of the Town. Once discontinued, delivery of water shall not be resumed until any protection device required by this article and approved by the Superintendent has been properly installed or until the conditions at the consumer's premises creating the need for a protective device have been abated or corrected to the satisfaction of the Superintendent and the County Health Officer.
E.
For the purpose of making any inspections or discharging
the duties imposed by this article, the Superintendent and County Health Officer
shall have the right to enter upon the premises of any consumer. Each consumer,
as a condition of the continued delivery to his premises, of water from the
Town water supply shall be considered as having stated his consent to the
entry upon his premises of the Superintendent and County Health Officer for
the purposes stated herein.
All presently installed prevention devices which do not meet the requirements of this section but were approved devices for the purposes described herein at the time of installation and which have been properly maintained shall, except for the inspection and maintenance requirements under § 73-41, be excluded from the requirements of rules so long as the Superintendent is assured that they will satisfactorily protect the Town's water supply. Whenever the existing device is moved from the present location or requires more than minimum maintenance which constitutes a hazard to health, the unit shall be replaced by a backflow prevention device meeting the requirements of this article. All future service lines for domestic water use shall be installed with an approved double check valve on the service line downstream of the water meter. Whenever repairs or modifications are made to existing services, a double check valve shall be installed.
