[Adopted 6-6-1995 as
Ch. 17 of the 1995 Code; amended in its entirety 3-7-2023]
The following rules and regulations, and such regulations as
may be hereafter established by the Rochester Department of Public
Works, shall be considered a part of the contract with every customer
who uses water supplied by the Rochester Department of Public Works
and such customer by taking water shall be considered as expressing
their assent to be bound thereby.
As used in this article, the following words and terms shall
have the meaning set forth below:
AIR GAP
An 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. Physically defined as a distance equal to twice
the diameter of the supply side pipe but never less than one inch.
AMERICAN WATER WORKS ASSOCIATION (AWWA)
The American Water Works Association (AWWA) is an international,
nonprofit, scientific and educational society dedicated to providing
total water solutions assuring the effective management of water.
Founded in 1881, the AWWA has developed the industry standards that
govern the operations of community tap water providers and is the
largest organization of water supply professionals in the world.
APPLICATION FOR WATER SERVICE
The form signed by the customer to obtain water service at
the premises and/or dwelling unit from the City distribution water
mains which will become the contract between the Department of Public
Works and the customer.
APPROVED BACKFLOW PREVENTION DEVICE
A backflow prevention device that:
A.
Has been manufactured to allow for accurate testing and inspection
so as to allow verification of performance; and,
B.
Has been tested and certified by the University of Southern
California, Foundation for Cross-Connection Control and Hydraulic
Research; and,
C.
Has a test procedure approved by the New England Water Works
Association; and,;
D.
Has been reviewed and approved by the Department.
APPROVED SOURCE
A source of water utilized by a public water system for distribution
to the public for consumption purposes and which is approved by the
New Hampshire Department of Environmental Services, Water Division,
for said use following a required and/or approved treatment process.
ATMOSPHERIC VACUUM BREAKER
A device which prevents backsiphonage by creating an atmospheric
vent when there is either a negative pressure or sub-atmospheric pressure
in a water system.
AUXILIARY WATER SUPPLY
Any water supply on, or available to, a premises other than
the City's approved public potable water supply.
BACK PRESSURE
Pressure created by mechanical means or other means causing
water, liquids, or other substances to flow or move in a direction
opposite of what is intended.
BACKFLOW
The flow of water or other liquids, mixtures, or substances
into the distribution pipes of a potable water supply from any source
or sources other than the intended source.
BACKFLOW ENCLOSURE
An aboveground structure used to shelter, isolate, and protect
a backflow prevention device from the environment for those connections
and devices installed to protect against a high degree of hazard.
BACKFLOW PREVENTER WITH INTERMEDIATE ATMOSPHERIC VENT
A device having two independently operating check valves
separated by an intermediate chamber with a means for automatically
venting it to the atmosphere. The check valves are force loaded to
a normally closed position and the venting means is force loaded to
abnormally open position.
BACKFLOW PREVENTION DEVICE
A device or means designed to prevent backflow or backsiphonage. Most commonly categorized as including air gap, reduced
pressure principle device, double check valve assembly, pressure vacuum
breaker, atmospheric vacuum breaker, hose bib vacuum breaker, residential
dual check, double check with intermediate atmospheric vent, and barometric
loop.
BACKFLOW PREVENTION DEVICE INSPECTOR, CERTIFIED
A person who has proven their competency to inspect and test
backflow prevention devices by the possession of a valid backflow
prevention device certification issued by the New England Water Works
Association or other equivalent certification approved by New Hampshire
Department of Environmental Services.
BACKSIPHONAGE
The flow of water or other liquids, mixtures, or substances
into the distribution pipes of a potable water system from any source
other than its intended source, that is caused by negative or reduced
pressure in the potable water system.
BAROMETRIC LOOP
A section of pipe rising at least 35 feet at its topmost
point above the highest fixture it supplies. It is utilized in water
supply systems to protect against backsiphonage (only).
BUSINESS OFFICE
The Business Office of the City of Rochester, New Hampshire,
as represented by its Finance Director, or duly authorized employee.
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.
CITY
The City of Rochester, New Hampshire.
CONDEX
A condex is a condominium, where two different individuals
own each side and have shared rights to common areas.
CONSECUTIVE WATER SYSTEM
A public water system that buys or otherwise receives some
or all of its finished water from one or more wholesale systems. Delivery
may be through a direct connection or through the distribution system
of one or more consecutive systems.
CONTAINMENT PHILOSOPHY
The method and philosophy of backflow prevention which requires
a backflow preventer at the service entrance which isolates the customer's
facility from the public water supply.
CONTAMINANT
As defined in RSA 485:1-a, II, any physical, chemical, biological
or radiological substance or matter in water.
CROSS-CONNECTION
Any actual or potential physical connection or arrangement
between two otherwise separate systems, one of which contains potable
water and the other of which contains water of unknown or questionable
safety and/or steam, chemicals, gases, or other contaminants whereby
there may be a flow of an unapproved water or other substance to a
potable water system.
CURB STOP
The shutoff valve located on the water service line that
operates the connection of the water service from the water main to
the premises. Curb stops are accessible for operation from outdoors
and generally located near the municipal-private property line or
right of way. Curb stops are considered by the Department to be the
point of sanitary control between the premises and the Public Water
System.
CUSTOMER
The owner or duly authorized representative of the owner
who made an application for a water service for a premises and/or
dwelling unit described in the application, or the subdivision supplied
with water service by the City of Rochester. This includes any private
person, commercial business, corporation, industry or governmental
division.
CUSTOMER (OWNER); CROSS CONNECTION
For the purposes of cross-connection compliance, any owner
or person with legal right to operate or reside in a premises at which
a cross-connection inspection is to be made or at which a cross-connection
is present.
DEPARTMENT OF PUBLIC WORKS (DEPARTMENT)
The Department of Public Works ("Department") of the City
of Rochester, New Hampshire, as represented by its Commissioner of
Public Works or duly authorized employee or agents, including the
Water Division.
DETECTOR ASSEMBLY
A backflow prevention device primarily utilized in fire line
installations. Its purpose is to protect the potable water supply
line from possible contamination, back pressure or pollution from
the fire system. It may also detect any water use in the fire line
due to fire line leakage or deliberate water theft.
DEVICE UPGRADE
The replacement of an existing backflow prevention device
with another appropriate device designed for a higher-hazard duty
when the degree of hazard is increased.
DISTRIBUTION WATER MAIN
Water mains which are installed or presently located on roadway
layouts, rights-of-way, or easements which provide the water for fire
protection or domestic water services, including the individual shutoff.
DIVISION
Division of Water, New Hampshire Department of Environmental
Services.
DOMESTIC WATER
A potable water which is suitable for uses, including but
not limited to, drinking, gardening and other household uses, municipal
uses and farmstead uses, including water used in the washing or hydrocooling
of farm products destined for human consumption on the farm, for sale
on the fresh food market or for delivery to a processing plant for
canning, freezing or other type of preparation prior to marketing.
DOUBLE CHECK VALVE ASSEMBLY (DCA)
An assembly of two independently operating spring-loaded
check valves with tightly closing shutoff valves on each side of the
check valves, plus properly located test cocks for the testing of
each check valve.
DUPLEX
A duplex is a two-family dwelling owned by one person typically
having two separate entrances.
DWELLING UNIT STRUCTURE
A building including a single-family home unit, cottage,
mobile home, apartment, condominium or townhouse or other structure
containing one or more residential units located on a premises served
by public water. This definition applies to multiple dwelling units
and mixed-use residential units that may exist in larger structures.
FIRE WATER SERVICE
A water service pipe that is used to convey public water
to be used for firefighting and/or fire suppression.
FIXTURE ISOLATION PHILOSOPHY
An isolation approach whereby protective devices are placed
at individual fixtures within a facility as well as where cross-connections
exist at the last free-flowing outlet to ensure occupants of a facility
are protected within.
FRANCHISE
The right to conduct business as a utility pursuant to RSA
374:22 and RSA 374:26.
HIGH DEGREE OF HAZARD
A condition where, if a backflow were to occur, the resulting
effect on the water supply could cause injury, illness or death if
consumed by humans. The foreign substance may be hazardous to humans
from a chemical, biological, physical, or radiological standpoint.
The effects of the contaminant may result from short-term or long-term
exposure.
LOW DEGREE OF HAZARD
A condition where, if a backflow were to occur, the resulting
effect on the water supply would be a change in aesthetic qualities.
The foreign substance must be nontoxic and nonhazardous to humans.
MASTER METER
A meter device used for billing purposes to measure consumption
of water serving more than one structure or a group of structures.
MULTIFAMILY DWELLING
A building or portion thereof containing three or more residential units with separate cooking and toilet facilities for each dwelling on one individual lot. See City of Rochester Zoning Code §
275-2.2.
NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)
The National Fire Protection Association is a nonprofit organization
that establishes codes and standards designed to minimize the risk
and effects of fire by establishing criteria for building, processing,
design, service, and installations.
NEW ENGLAND WATER WORKS ASSOCIATION (NEWWA)
The New England Water Works Association (NEWWA) is a nonprofit
member organization incorporated in Massachusetts serving drinking
water professionals throughout New England dedicated to serving those
professionals working in the water in drinking water profession. Founded
in 1882, NEWWA is an affiliated organization of the New England Water
Works Association, Inc. and New England Section of the American Water
Works Association (AWWA).
NONDWELLING UNIT STRUCTURE
A physical building unit that receives public water in which
occupants are present to receive such public water but not for dwelling
or residential purposes. Such structures typically include commercial,
industrial, institutional, or mixed purposes and may have multiple
spaces for mixed purposes (nonresidential).
OWNER
A person who holds legal title or rights to real property
or a premises.
PERMIT
A document issued by the Department that authorizes a use
or action impacting the water distribution system; including, but
not limited to, the use of backflow prevention devices, cross-connections,
service connections and/or water use exemptions.
PERSON
As defined in RSA 485:I-a, XIII, any individual, partnership,
company, public or private corporation, political subdivision or agency
of the state, department, agency or instrumentality of the United
States, or any other legal entity.
POST INDICATOR VALVE (PIV)
Post indicator valves (PIV) provide a means to operate a
buried or otherwise inaccessible nonrising stem (NRS) gate valve including
NRS gate valve; NRS gate valve with post flange; outside stem and
voke (OS&Y) gate valves; vertical post indicator; wall post indicator;
supervisory switches and flange packs.
POTABLE WATER
Water meant for human consumption from a source that has
been approved by the New Hampshire Department of Environmental Services.
All municipal water is produced and conveyed to premises as potable
water.
PREMISES
A parcel of real estate or portion of land which may include
multiple parcels located within the City, including any improvements
or structures therein (including dwelling unit structures, nondwelling
unit structures and/or other improvements), which is determined by
the City to be a single user for the purposes of receiving, using
and paying for water from a water service connected to the public
water supply.
PRESSURE VACUUM BREAKER (PVB)
A device containing one or two independently operating spring-loaded
check valves and an independently operating spring-loaded air inlet
valve located on the discharge side of the check or checks. The device
includes tightly closing shutoff valves on each side of the check
valves plus properly located test cocks for the testing of each of
the check valve(s).
PRIVATE DISTRIBUTION SYSTEM
A water piping system and appurtenances such as hydrants
and valves that may convey public water but is owned and maintained
by a private entity and is on the customer's side of the point
of sanitary control, commonly delineated by the curb stop or other
control device.
PRIVATE HYDRANT
Any fire hydrant located outside the public right-of-way
and/or located on property not owned by the City, but which is connected
to the public water system and installed and maintained by an owner(s)
for the purpose of providing private fire protection/suppression.
PRIVATE WATER MAIN
A water main that is not owned or maintained by the City
but that conveys public water to customers through private service
lines and is owned and maintained by a private entity.
PRIVATE WATER SERVICE
The portion of the water service line providing domestic
and, in some cases, both domestic and fire water service to the customer
running either from: (a) the connection to the public service line
at the curb stop on public ways to the termination with the plumbing
system within the premises; or (b) from the connection to the public
water main on private ways or through private property which is the
responsibility of the customer to maintain.
PROFESSIONAL ENGINEER (PE)
A registered professional engineer in the state of New Hampshire.
Such an engineer shall have professional competency in civil or mechanical
specialties as they pertain to this chapter.
PUBLIC WATER
Potable water or water provided for public fire protection
supplied by the City's public water system and made available
to its customers through the City's distribution system, the
distribution system of any City franchises, private distribution systems,
community water systems, or other source of potable water produced
by any consecutive public water systems under the City's drinking
water regulatory responsibility.
PUBLIC WATER MAIN
The water main owned or maintained by the City, any of its
franchises or consecutive water systems, under its regulatory responsibility
that qualifies as part of the public water system. The water main
must supply water to one or more customers for water consumption and/or
public fire protection. A public water main includes a water main
installed in a public way, publicly owned easements (whether recorded
or by prescription), installed in private ways open to public travel,
or mains that may cross private properties.
PUBLIC WATER SERVICE
The portion of the water service line providing domestic
and, in some cases, both domestic and fire water service to the premises
running from the connection at the City distribution main to and including
the curb stop on public ways or to and including a curb stop or other
containment valve for a private water service connection on private
ways or private property, which is the responsibility of the City
to maintain.
PUBLIC WATER SYSTEM
As defined by RSA 485:1-a, XV, a system for the provision
to the public of piped water for human consumption, if such system
has at least 15 service connections or regularly serves an average
of at least 25 individuals daily at least 60 days out of the year.
Such term includes any collection, treatment, storage, and distribution
facilities under control of the operator of such system and used primarily
in connection with such system, and any collection or pretreatment
storage facilities not under such control which are used primarily
in connection with such system. Any water system which meets all of
the following conditions is not a public water system:
A.
Consists only of distribution and storage facilities (and does
not have any collection and treatment facilities); and,
B.
Obtains all of its water from, but is not owned or operated
by, a public water system; and,
C.
Does not sell water to any person.
READER
A device installed by the Department of Public Works for
remote reading of the quantity of water consumed and measured by the
water meter.
REDUCED PRESSURE ZONE PRINCIPLE BACKFLOW PREVENTION DEVICE (RPZ)
An assembly consisting of two independently operating approved
check valves together with a hydraulically operating, mechanically
independent pressure differential relief valve located between the
two check valves and below the first check valve. These units are
located between two tightly closing, resilient-seated shutoff valves
as an assembly and equipped with properly located resilient-seated
test cocks for the testing of the check valves and the relief valve.
REPLACEMENT COSTS
Expenditures for obtaining and installing equipment, accessories,
or appurtenances which are necessary during the operational life of
the treatment works to maintain the capacity and performance for which
such works were designed and constructed. The term "operation and
maintenance" includes replacement costs.
RESIDENTIAL DUAL CHECK VALVE
A device, designed for backpressure and back-siphonage protection
for residential dwellings only, which incorporates two independently
operating, spring-loaded check valves without tightly closing shutoff
valves and test cocks, generally employed immediately downstream of
the water meter to act as a containment device. This is a nontestable
device which meets or exceeds the ANSI/ASSE Standard 1024 for dual
check valve-type backflow preventers.
SERVICE VALVE/SHUT OFF VALVE
A gate or valve located on a water main, or water service
line used to isolate flows to and from a device such as a meter, backflow
device, fire protection or structure. Service or shut off valves may
be located on service lines to premises located on private property
and must be accessible for access and operation by the Department.
SEWER DEDUCT METER
A device installed and owned by the Department of Public
Works for the measurement of water that will not be disposed of in
the City sewer system.
SINGLE-FAMILY DWELLING
A detached dwelling which contains exactly one residential unit (except for accessory apartments, where permitted); is not attached to any other dwelling or residential unit; and occupies its own individual lot on which there is no other dwelling or principal use. See City of Rochester Zoning Code §
275-2.2.
SITE SURVEYS
Initial site surveys of existing commercial and industrial
properties are required to determine degree of compliance with the
regulations herein. Such activities shall be executed by the Department
either using its own resources or contracted resources. Activities
shall include on-site surveys of commercial and industrial users of
the public water supply which in the judgment of the Department may
present risk of cross contamination.
SUBMETER
A privately owned and read water meter used for measuring
water consumption for dwelling units connected after a meter pit or
public meter.
SUPPLIER
Any person who controls, owns, or generally manages a public
water supply system.
TAMPER/TAMPERING
Any unauthorized action which disables, disconnects, bypasses,
or otherwise inhibits or prevents the water meter from operating or
registering, to affect, in any way, the ability of such meter to accurately
measure the water being supplied to a customer. Tampering shall also
mean to affect any unauthorized use or modification to City water
infrastructure.
TWO-FAMILY DWELLING
A building which contains exactly two residential units; is not attached to any other dwelling or dwelling unit; and occupies its own individual lot on which there is no other dwelling or principal use. -See City of Rochester Zoning Code §
275-2.2.
VAULT
An underground, water-proofed chamber or structure used to
house or protect meters, backflow devices, valves, and or pumps connected
to a public or private water system. This definition shall apply to
and include the term meter pits which are structures defined above
to protect, control, and access the meter device.
WATER MAIN
The water main shall mean the piping and associated valves,
hydrants, and appurtenances for the purpose of supplying water to
one or more customers or premises for potable water consumption or
for public fire protection.
WATER METER
A device installed by the Department of Public Works for
the measurement of water quantities to be used as a basis for determining
charges for water services.
WATER SERVICE
The water pipe extending from City distribution water main
from the City, a franchise or consecutive system to the building or
structure located on the customer's premises. Such water service
is further delineated by a public water service and a private water
service.
WATER SERVICE ENTRANCE
The point in the customer's water system beyond the
sanitary control of the Department; generally considered to be the
outlet end of the water meter and always before any unprotected branch.
WATER SUPPLY SHORTAGE
A situation when the City's water supply is in jeopardy
as evidenced by a state or federal government agency declaring a drought
in the area or the water system being unable to, or within 60 days
of such written determination becomes unable to, supply the full commercial,
domestic, and residential needs of the users of the City's water
system, including needs for adequate fire protection. A water supply
shortage usually occurs due to drought or a major infrastructure failure.
WATER SYSTEM SUPERINTENDENT
The Water System Superintendent of the City of Rochester, New Hampshire, Water System Treatment Facility, Department of Public Works, or their designated representative, who is vested with the authority and responsibility for implementation of a cross-connection control program and for enforcement of the provisions of Article
I of this chapter and these regulations.
The minimum size of service connections and meter installation
permitted shall conform to the recommendations of the American Water
Works Association.
Upon application and approval by the Department of Public Works, a customer may have installed by the City a sewer deduct meter to measure water that will not be disposed of in the City's sewer system. The purpose of this meter is to meter water uses, including, but not limited to, irrigation, in-ground sprinkler systems, swimming pool filling, and commercial air-conditioning systems. Customer shall be responsible for the cost of inspection and installation of the sewer deduct meter. The meter shall fully meet the requirements of §
260-8 of this chapter except that the sewer deduct meter shall not be required to have a separate exterior shutoff valve.
Upon completion of adjustment and test of any meter under the
provisions of these rules, the Department of Public Works shall affix
thereto a suitable seal in such a manner that the adjustment of registration
of the meter cannot be tampered with without breaking the seal. Disruption
of the seal will be cause for discontinuance of service.
All customers shall be required to have an outside reader with
radio read capability for their meter installed at the premises. The
outside reader shall be installed at a place on the premises acceptable
to the City and according to the specifications available at the Department
of Public Works. The customer shall be responsible for repairs or
replacement of damaged outside readers and associated wiring when
damage is due to abuse, neglect and/or negligence of the customer.
The City shall render a bill for labor, equipment, and materials for
all such repairs or replacement. The outside reader and appurtenances
shall be the property of the City. The customer shall be responsible
for providing safe access to City personnel for reading. The customer
shall remove potential hazards and nuisances such as snow, ice, vegetation,
and dogs from the outside reader's access. Reasonable access
shall be granted to Department of Public Works personnel for the purposes
of reading and maintenance. If satisfactory access is not provided
the City reserves the right to produce an estimated bill.
The Department of Public Works employees or its agents shall
be allowed access to the customer's premises between the hours
of 8:00 a.m. and 6:00 p.m. for examination of pipes, fixtures, connections,
the quantity of water used, and the manner of use. In the case of
an emergency, no prior notice needs to be given, and, in the event
of refusal of entry, water may be shut off with a fee assessed and
application can be made to the courts for an appropriate order with
all legal costs being charged to the customer.
Water rates shall be established periodically by the City Council.
Such water rates shall be computed based on the total amount budgeted
for the Department of Public Works for any operations and maintenance
costs, plus any debt service and capital outlays determined by the
City Council, and projections of estimated water consumption, number
of accounts, and/or other such factors. Water rates shall be recommended
to the City Council by the Utility Advisory Board and/or the City
Manager and shall be established to provide sufficient revenue to
at least pay the expenses of operating and maintaining the water treatment
works, transmission and distribution system, and appurtenant facilities.
A. Exemption. The City Council may authorize elderly exemptions for
users qualifying for property tax exemptions in the City, but such
exemptions shall not result in charges lower than those necessary
to recover operation and maintenance costs. Only the portion of the
water rates that recovers the debt service or capital outlays may
be exempted.
B. Implementation of new rates. Before new rates and/or fees are effective,
there shall be two readings before the City Council. In addition,
a public hearing shall be held between the first and the second readings.
The public hearing shall be held at least 10 calendar days before
the rates are effective.
Users aggrieved of bills rendered under this article have the
following rights of appeal:
A. Notification. The aggrieved customer shall notify the Business Office
in writing that said bill is contested before the next bill for water
service is issued. The notification shall explain why the bill is
contested and provide the information necessary to determine the validity
of the claim. The Finance Director may require the use of forms to
expedite the appeals process.
B. Resolution. Upon receipt of a notification under Subsection
A, the Finance Director shall submit the claim to the Utility Advisory Board with a recommendation on the validity of the claim. The decision of the Utility Advisory Board shall be final, except that the City Manager shall have the authority to veto or modify any action of the Utility Advisory Board. Aggrieved parties shall be allowed only one appeal per claim.
C. Disposition of appeals. For appeals found to be valid, the date of the billing will be revised to the date of the Utility Advisory Board's decision. Revised charges will become due and payable as specified in §
260-18. For appeals not found to be valid, the date of the billing will be as originally issued, and charges and interest will be as computed as specified in §
260-18.
Charges for labor and material, including installation costs,
shall be billed upon completion of the work which the bill covers.
If such bills are not paid within 30 days or a payment agreement made
with the Department, the water will be shut off and unpaid charges
will become a lien on the property. All late payments will include
interest charges. Collection procedures will be taken, and any costs
will be charged to the customer.
Forty-eight hours' advance notice is normally required
for turning on and shutting off water for work performed by the Department
of Public Works, except in the case of emergency, consistent with
Env-Dw 503.9. The requested service will be provided as soon as possible
thereafter except in cases of termination for nonpayment. Fourteen
days advanced notice will be provided to the customer for termination
of service for unpaid charges. All expenses involved for the shut-off
at either a customer's request or for nonpayment will be the
responsibility of the customer. Overtime charges at the rate of time
and 1/2 will be charged before or after duty hours, with a minimum
of a three-hour charge.
The Department of Public Works does not use its equipment to
fill private swimming pools. Private companies shall obtain written
authority from the Department of Public Works to use water from the
water system. Customers desiring an abatement of sewer charges while
filling their pools must contact the Department for instructions prior
to filling the pool. There will be no abatement if the Department
has not been contacted.
Any construction, irrigation, swimming pool, or other bulk water
hauler shall contact the Department to arrange access to designated
City bulk water station(s) where metering and backflow prevention
can be ensured. Any such hauler's use of hydrants or any other
water source other than the designated station(s) shall constitute
a tampering violation and hauler shall be responsible to compensate
the City for all water released and all applicable fines. The Department
will estimate such quantities for charges.
On sale or transfer of property, the customer must give notification
to the Business Office of such sale or transfer in order that a final
meter reading can be taken, and proper charges made to the proper
owner. A minimum of 24 hours' notice is required. If an existing
apartment building or other multiunit dwelling unit or premises is
converted to a condominium, the owner shall provide written notification
to the Department. The new owner shall complete a water service application
and be responsible for any fees or charges from the Department of
Public Works and any private plumber necessary to provide a separate
service and meter.
The Department of Public Works reserves the right to shut off
the service temporarily whenever it becomes necessary to make extensions,
alterations, or repairs, or to curtail the use of water whenever conditions
so require without prior notice. The Department of Public Works will
make best efforts to provide advanced notice to customers when practicable.
[Adopted 4-2-2013 (Ch.
18 of the 1995 Code); amended in its entirety 12-3-2013; 3-7-2023]
The authority for this article is derived from the New Hampshire
Administrative Rules Part Env-Dw 505, Backflow Prevention, and the
City of Rochester public water system rules and regulations, as adopted.
The Department is responsible for protecting the public potable
water distribution system from contamination due to the backflow or
backsiphon of contaminants through the water service connection.
The Department recognizes the threat to the public water system
arising from cross-connections. These threats are classified as follows
in this section:
A. Low hazard. If a backflow were to occur, the resulting effect on
the water supply would, at the most, be a change in its aesthetic
qualities. The foreign substance(s) must be nontoxic to humans. All
threats classified as "low hazard" will require, at a minimum, the
installation of an approved double check valve assembly.
B. High hazard. If a backflow were to occur, the resulting effect on
the water supply could cause illness, injury or death if consumed
by humans. The foreign substances may be hazardous to humans from
a physical, chemical, biological, and/or radiological standpoint.
The effects of the contaminants may result from short- or long-term
exposure. All threats classified as "high hazard" will require the
installation of approved reduced pressure zone principle backflow
prevention devices air gaps or other high hazard device approved by
the Department.
Any existing backflow preventer shall be allowed by the Department
to continue in service if in good working order unless the degree
of hazard is such as to supersede the effectiveness of the present
backflow preventer or result in an unreasonable risk to the public
health. Permits for existing devices shall be issued with durations
to coincide with the required schedule of inspection and testing.
Where the degree of hazard has increased, as in the case of a residential
installation converting to a business establishment, an existing backflow
preventer must be upgraded to an approved device, or an approved device
must be installed in the event that no backflow device is present.
The provisions of this article with respect to the meaning of
technical terms and phrases, the classification of different plumbing
devices, the regulations with respect to installing, inspecting, or
testing backflow prevention equipment, and other technical matters
shall be interpreted and administered by the Department acting in
and for the City of Rochester, New Hampshire.
Any party aggrieved by any decision, regulation, or provision
under this article, as amended, from time to time, shall have the
right to appeal said decision to the Department which shall issue
a decision within 30 calendar days of the appeal. If said appeal is
denied by the Department, then the aggrieved party shall have the
right to appeal to the Utility Advisory Board and then to the City
Manager.
The City reserves the right to adopt, from time to time, additional
rules, and regulations as it shall deem necessary and proper relating
to control and management of cross-connections, which additional rules
and regulations, to the extent appropriate, shall be a part of these
regulations. Future changes to this article will be submitted to New
Hampshire Department of Environmental Services for approval prior
to City adoption.
This article shall be in full force and effect immediately following
its passage, as provided by law. The adoption of this article specifically
repeals any previously adopted cross-connection ordinance or rules
of the City of Rochester, New Hampshire, with regard to cross-connections
between water supplies of potable and nonpotable systems and/or sources.