[Ord. No. 327 §§I —
II, 6-2-1998]
A.Â
Purpose. The purposes of this Chapter are:
1.Â
To protect the public potable water supply from contamination or
pollution by containment within the customer's internal distribution
system or private water system, contaminants or pollutants which could
backflow through the service connection into the "public water system".
2.Â
To promote the elimination, containment, isolation or control of
existing cross-connections, actual or potential, between the public
or customer's potable water system and non-potable water systems,
plumbing fixtures and industrial-process systems.
3.Â
To provide for the maintenance of a continuing program of cross-connection
control which will systematically and effectively prevent the contamination
or pollution of all potable water systems.
4.Â
To comply with the provisions of the Missouri Safe Drinking Water
Act, the Missouri Public Drinking Water Regulations as promulgated
in 10 CSR 60, Chapter 11, Cross Connection, and other directives or
guidelines established by the Missouri Department of Natural Resources,
hereinafter referred to as the Department, which are consistent with
the Act and their Regulations.
B.Â
Application. This Chapter shall apply to all premises served
by the public potable water system of the City of Northmoor, Missouri.
C.Â
Policy. This Chapter will be reasonably interpreted by the
Water Purveyor. The Water Purveyor shall be primarily responsible
for protection of the public potable water distribution system from
contamination or pollutants through the water service connection.
If in the judgment of the Water Purveyor or his/her authorized
representative, cross-connection protection is required either through
piping modification or installation of an approved backflow prevention
device, written notice shall be given to the consumer immediately.
The consumer shall immediately comply by providing such protection
at his/her own expense; failure to do so shall constitute grounds
for discontinuing water services to the premises until such protection
has been provided.
[Ord. No. 327 §III, 6-2-1998]
A.Â
AIR-GAP SEPARATION
AUXILIARY WATER SUPPLY
BACKFLOW
BACKFLOW HAZARD
1.Â
2.Â
BACKFLOW PREVENTION ASSEMBLY
BACKFLOW PREVENTION ASSEMBLY TESTER — CERTIFIED
BYPASS
CONTAINMENT
CONTAMINATION
CROSS-CONNECTION
CUSTOMER
DEPARTMENT
DOUBLE-CHECK-DETECTOR CHECK ASSEMBLY
DOUBLE-CHECK VALVE ASSEMBLY
FACILITY
HAZARD, DEGREE OF
1.Â
2.Â
3.Â
4.Â
INDUSTRIAL PROCESS SYSTEM
ISOLATION
PERSON
POLLUTION
POTABLE
PREMISES
PRESSURE TYPE VACUUM BREAKER ASSEMBLY
REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTION ASSEMBLY
SERVICE CONNECTION
WATER DISTRIBUTION SYSTEM
WATER PURVEYOR
The
following definitions shall apply in the interpretation and enforcement
of this Chapter:
An unobstructed gap between the supply pipe or faucet and the receiving tank, plumbing fixture or other device and which meets the requirements of the Department. The gap shall be at least two (2) times the diameter of the supply pipe measured vertically above the overflow rim level of the receptacle, but in no case less than one (1) inch. (See Section 710.060 Backflow Prevention Assembly Standards.)
Any water source or system, other than the water distribution
system, that may be available in the building or premises.
The flow, other than in the intended direction of flow, of
any foreign liquids, gases or substances into the water distribution
system.
Any hazard which could occur due to either an existing or
potential backflow of contaminated water or non-potable water into
the water distribution system.
Class I Backflow Hazard — A backflow
hazard which presents an immediate or potential health hazard to customers
of the water distribution system should backflow occur.
Class II Backflow Hazard — A backflow
hazard which would threaten to degrade the water quality of the water
distribution system should backflow occur.
Any device, method or type of construction intended to prevent backflow into a potable water system, and which meets the requirements of the Department. (See Section 710.060 Backflow Prevention Assembly Standards.)
A person who has proven his/her competency to the satisfaction
of the Department. Each person who is certified to make competent
tests or to repair, overhaul and make reports on backflow prevention
assemblies shall be conversant with applicable laws, rules and regulations
and have had experience in plumbing or pipe fitting or have other
qualifications which, in the opinion of the Department, are equivalent.
Any system or arrangement of piping whereby the water may
be diverted around all or any part of a backflow prevention assembly.
Protection of the water distribution system, by installing
a Department approved backflow prevention assembly or air-gap separation
on the main service line to a facility.
An impairment of the quality of the water by sewage, wastes,
process fluids, chemicals or substances to a degree which could create
an actual hazard to the public health through poisoning or through
spread of disease by exposure.
Any physical link, actual or potential, between a potable
water supply and any other substance, fluid or source, which makes
possible contamination of the potable water supply due to the reversal
of flow of the water in the piping or distribution system. Bypass
arrangements, jumper connections, removable sections, swivel or changeover
devices and other temporary or permanent devices through which or
because of which backflow can or may occur are considered to be cross-connections.
The owner or person in control of any facility supplied by
or in any manner connected to the water distribution system.
The Missouri Department of Natural Resources, its employees
or authorized representatives.
An assembly, approved by the Department, which includes a main line assembly composed of two (2) single, independently acting, internally loaded check valves, including tightly closing shut-off valves located at each end of the assembly and fitted with properly located test cocks. In addition, the bypass line assembly shall be composed of a water meter in series with a double-check valve assembly. The meter, nominally three-fourths (¾) inch size, is for detection of leaks and unauthorized water uses and will accurately register flows of between one (1) and twenty (20) gpm flow rates. The double-check valve assembly located in the bypass line has a static pressure drop which is approximately two (2) psi less than the mainline check valves, resulting in all flows up to about ten (10) gpm to be registered by the meter. The meter installed on the assembly shall only be one that has been specifically approved and matched with the assembly, by the Department, for this use. (See Section 710.060 Backflow Prevention Assembly Standards.)
An assembly, approved by the Department, which is composed of two (2) single, independently acting, internally loaded check valves, including tightly closing shut-off valves located at each end of the assembly and fitted with properly located test cocks. (See Section 710.060 Backflow Prevention Assembly Standards.)
Any structure, building, hydrant, piping system or other
device, owned by a customer, which is supplied potable water from
the Water Purveyor.
An evaluation of the potential risk to public health and
the adverse effect of the hazard upon the potable water system.
Hazard, Health: Any condition, device or practice
in the water supply system and its operation which could or may create
a danger to the health and well-being of any customer.
Hazard, Plumbing: A plumbing type cross-connection
in a customer's potable water system that has not been properly protected
by a vacuum breaker, air-gap separation or backflow prevention device.
Hazard, Pollutional: An actual or potential
threat to the physical properties of the water distribution system
or the potability of the Water Purveyor's or the customer's potable
water system, but which would constitute a nuisance or be aesthetically
objectionable or could cause damage to the system or its appurtenances,
but would not be dangerous to health.
Hazard, System: An actual or potential threat
of severe damage to the physical properties of the potable water system
of the Water Purveyor or the customer, or of a pollution or contamination
which would have a protracted effect on the quality of the potable
water in the system.
Any system containing a fluid or solution which may be chemically,
biologically or otherwise contaminated or polluted in a form or concentration
such as would constitute a health, system, pollutional or plumbing
hazard if introduced into a potable water supply.
Protection of a customer's potable water system, within his/her
premises, by installing a Department approved backflow prevention
assembly or air-gap separation on an individual fixture, appurtenance
or system.
Any individual, partnership, co-partnership, firm, company,
public or private corporation, association, homeowners' association,
joint stock company, trust, estate, political subdivision, or any
agency, board, department or bureau of the State or Federal Government,
or any other legal entity whatever which is recognized by law as the
subject of rights and duties.
The presence of any foreign substance (organic, inorganic
or biological) in water which tends to degrade its quality so as to
constitute a hazard or impair the usefulness of the water to a degree
which does not create an actual hazard to the public health but which
does adversely and unreasonably affect such waters for domestic use.
Any water which is satisfactory for drinking, culinary and
domestic purposes and which meets the requirements of the Department.
For the purposes of this Chapter, all water supplied by the Water
Purveyor meets these requirements.
The land, real estate or building, owned or occupied by a
customer, having any facility which is supplied water from the Water
Purveyor.
A device, approved by the Department, which is composed of
a spring loaded check valve which closes tightly when the pressure
of the device drops below one (1) psi or when zero (0) flow occurs.
An air inlet port that opens to break a siphon when the pressure in
the device drops to one (1) psi is located above the line check valve.
This device shall only be installed where back pressure will not occur
and shall be installed above the highest fixture served.
A device, approved by the Department, containing two (2) independently acting, internally loaded check valves together with a hydraulically operating, mechanically independent pressure relief valve located between the check valves and at the same time below the first (1st) check valve. The unit shall include properly located test cocks and tightly closing shut-off valves at each end of the assembly. (See Section 710.060 Backflow Prevention Assembly Standards.)
The terminal end of a water service line or pipe which is
connected to the Water Purveyor's water distribution system, for the
purpose of conveying water to a point of use, for potable and/or fire
protection purposes.
All piping, conduits, valves, hydrants, storage facilities,
pumps and other appurtenances, excluding service connections, which
serve to deliver water from a water treatment plant or water supply
source to the public. For the purposes of this Chapter, only that
system which is owned and/or operated by the Water Purveyor shall
be considered as the water distribution system.
The owner, operator or individual in responsible charge of
a public water system.
B.Â
The definitions contained under Subsection (A) above are supplemental to those definitions contained in 10 CSR 60-2.015. Should any conflicts arise in the interpretation of this Chapter which are attributed to discrepancies between these definitions, those definitions contained in 10 CSR 60-2.015 shall govern.
[Ord. No. 327 §IV, 6-2-1998]
A.Â
No
service connection shall be installed or maintained to any facility
where actual or potential cross-connections may exist unless such
actual or potential cross-connections are abated or controlled to
the satisfaction of the Water Purveyor and as required by the laws
and regulations of the Department.
B.Â
No
service connection shall be installed or maintained whereby an auxiliary
water supply may enter the Water Purveyor's or customer's potable
water system unless such auxiliary water supply and the method of
connection and use of such supply shall have been approved by the
Water Purveyor and the Department.
C.Â
No
service connection shall be installed or maintained to any facility
in which the plumbing system and fixtures have not been constructed
and installed using acceptable plumbing practices considered by the
Water Purveyor as necessary for the protection of health and safety.
[Ord. No. 327 §V, 6-2-1998]
A.Â
The
customer's premises shall be open at all reasonable times to the Water
Purveyor or its authorized representative for the conduction of surveys
and investigations or water use practices within the customer's premises
to determine whether there are actual or potential cross-connections
through which contaminants or pollutants could backflow into the water
distribution system.
B.Â
On
request by the Water Purveyor or its authorized representative, the
customer shall furnish information on water use practices within his/her
premises.
C.Â
It
shall be the responsibility of the water customer to conduct periodic
surveys of water use practices on his/her premises to determine whether
there are actual or potential cross-connections to his/her water system
through which contaminants or pollutants could backflow into his/her
potable water system or the Water Purveyor's water distribution system.
[Ord. No. 327 §VI, 6-2-1998]
A.Â
General.
1.Â
An approved backflow prevention assembly shall be installed on each
service connection to a customer's water system serving premises where,
in the judgment of the Water Purveyor or the Department, actual or
potential hazards to the Water Purveyor's water distribution system
exist. The type and degree of protection required shall be commensurate
with the degree of hazard.
2.Â
The Water Purveyor's policy, in order to protect the water distribution
system, must be a control program by containment. Therefore, the required
type of approved assembly must be installed on the customer's service
connection on the down stream side of the meter.
3.Â
In addition to the Water Purveyor's policy of control by containment,
the Water Purveyor supports additional control of actual or potential
hazards with the installation of other backflow protection assemblies
in order to isolate the hazardous condition for the protection of
the Water Purveyor's own potable water system.
4.Â
Notwithstanding any other provision of this Chapter, whenever a backflow
incident occurs which introduces a contaminant or pollutant into the
water distribution system, the customer shall install an approved
backflow prevention assembly which is consistent with the degree of
hazard the incident posed.
5.Â
When more than one (1) service connection serves a single facility
or the premises of only one (1) customer, each service connection
shall be rated independently of each other, based upon the degree
of hazard that service connection poses (i.e., separate service connections
for domestic, process and fire protection could require no protection,
Class I protection and Class II protection respectfully).
B.Â
Class I Hazard.
1.Â
Class I Hazard classification. An approved air-gap
separation or reduced pressure principle backflow prevention assembly
shall be installed on the service connection where, in the judgment
of the Water Purveyor or the Department, the nature and extent of
activities on the premises or the materials used in connection with
the activities, or materials stored on the premises, would present
an immediate and dangerous hazard to the health should a cross-connection
occur, even though such cross-connection may not exist at the time
the backflow prevention assembly is required to be installed. This
includes but is not limited to the following situations:
a.Â
Premises having an auxiliary water supply, unless the quality of
the auxiliary supply is acceptable to the Water Purveyor and the Department.
b.Â
Premises having internal cross-connections that are not correctable
or intricate plumbing arrangements which make it impractical to ascertain
whether or not cross-connections exist.
c.Â
Premises where entry is restricted so that inspection for cross-connection
cannot be made with sufficient frequency or at sufficiently short
notice to assure that cross-connections do not exist.
d.Â
Premises have a repeated history of cross-connections being established
or reestablished.
e.Â
Premises, which due to the nature of the enterprise therein, are
subject to recurring modification or expansion.
f.Â
Premises on which any substance is handled under pressure so as to
permit entry of the substance into the water distribution system,
or where a cross-connection could reasonably be expected to occur.
This shall include the handling of process waters and cooling waters.
g.Â
Premises where materials of a toxic or hazardous nature are handled
such that if back-siphonage or back-pressure should occur, a serious
health hazard may result.
2.Â
Class I Hazard listing. The following types of facilities
fall into one (1) or more of the categories of premises where an approved
air-gap separation or reduced pressure principle backflow prevention
assembly is required by the Water Purveyor and the Department to protect
the Water Purveyor's distribution system and must be installed at
these facilities unless all hazardous or potentially hazardous conditions
have been eliminated or corrected by other methods to the satisfaction
of the Water Purveyor and the Department:
a.Â
Aircraft and missile manufacturing plants.
b.Â
Automotive plants, including those plants which manufacture motorcycles,
automobiles, trucks, recreational vehicles and construction and agricultural
equipment.
c.Â
Potable water dispensing stations which are served by the Water Purveyor.
d.Â
Beverage bottling plants, including dairies and breweries.
e.Â
Canneries, packing houses and reduction plants.
f.Â
Car, truck and equipment washing facilities.
g.Â
Chemical, biological and radiological laboratories, including those
in high schools, trade schools, colleges, universities and research
institutions.
h.Â
Hospitals, clinics, medical buildings, autopsy facilities, morgues,
mortuaries and other medical facilities.
i.Â
Metal or plastic manufacturing, fabrication, cleaning, plating or
processing facilities.
j.Â
Plants manufacturing paper and paper products.
k.Â
Plants manufacturing, refining, compounding or processing fertilizer,
film, herbicides, natural or synthetic rubber, pesticides, petroleum
or petroleum products, pharmaceuticals, radiological materials or
any chemical or substance which could be a contaminant to the water
system.
l.Â
Facilities that use herbicides, pesticides, fertilizers or any chemical
which would be a contaminant to the water system.
m.Â
Plants processing, blending or refining animal, vegetable or mineral
oils.
n.Â
Commercial laundries and dye works.
o.Â
Sewage, stormwater and industrial waste treatment plants and pumping
station.
p.Â
Waterfront facilities, including piers, docks, marinas and appurtenant
structures or facilities.
q.Â
Industrial facilities which recycle water.
r.Â
Facilities that have restricted access due to the nature of the customer's
business.
s.Â
Fire sprinkler systems using any chemical additives.
t.Â
Auxiliary water systems.
u.Â
Irrigation systems with facilities for injection of pesticides, herbicides
or other chemicals or with provisions for creating back pressure.
v.Â
Potable tanks for transporting water taken from the Water Purveyor's
water distribution system.
w.Â
Facilities which have pumped or repressurized cooling or heating
systems that are served by the water system, including all boiler
systems.
C.Â
Class II Hazards.
1.Â
Class II Hazard classification. An approved air-gap
separation, an approved reduced pressure principle backflow prevention
assembly, an approved double-check valve assembly or an approved double-check-detector
check assembly shall be installed on the service connection where,
in the judgment of the Water Purveyor or the Department, the nature
and extent of activities on the premises could result in an incident
occurring which would introduce a contaminant or pollutant into the
water distribution system which may create a nuisance, be aesthetically
objectionable or cause minor damage to the Water Purveyor's water
distribution system or the customer's water system.
2.Â
Class II Hazard listing. The following types of
facilities fall into the categories of premises where an approved
air-gap separation or reduced pressure principle backflow prevention
device or approved double-check valve assembly or a double-check-detector
check assembly is required by the Water Purveyor or the Department
to protect the water distribution system and must be installed at
these facilities unless all hazardous or potentially hazardous conditions
have been eliminated or corrected by other methods to the satisfaction
of the Water Purveyor and the Department.
a.Â
Tanks for storage of water taken from the water distribution system
for any purpose.
b.Â
Fire sprinkler system not using chemical additives.
c.Â
Cross-connections that could permit introduction of pollutants into
the water distribution system and thereby create a nuisance, be aesthetically
objectionable or cause damage to the water system.
[Ord. No. 327 §VII, 6-2-1998]
A.Â
General.
1.Â
All new backflow prevention assemblies required by this Chapter shall
be of a model or construction which meets the requirements of the
Department and/or which appears on the current "list of approved backflow
prevention devices" established by the Department.
2.Â
Existing backflow prevention assemblies approved by the Water Purveyor
at the time of installation shall, except for the inspection and maintenance
requirements of this Chapter, be excluded from the requirements of
this Section, so long as the Water Purveyor is assured that they will
satisfactorily protect the water distribution system. Whenever the
existing device is moved from its present location, or requires more
than minimum maintenance, or when the Water Purveyor finds that the
maintenance constitutes a hazard to health, the unit shall be replaced
by a backflow prevention assembly meeting the requirements of this
Chapter.
3.Â
Backflow prevention assemblies required by this Chapter shall be
installed and maintained at the expense of the customer
B.Â
Installation And Construction.
1.Â
Backflow prevention assemblies required by this Chapter shall be
installed at a location and in a manner approved by the Water Purveyor.
2.Â
Backflow prevention assemblies installed on a service connection
to the customer's water system shall be located on the customer's
side of the water meter, as close to the meters as is reasonably practical,
and prior to any other connection.
3.Â
Backflow prevention assemblies shall be located so as to be readily
accessible for maintenance and testing, protected from excessive heat
or freezing, and where no part of the assembly will be submerged or
subject to flooding by any fluid.
4.Â
As thermal water expansion and/or water hammer downstream of the
backflow preventer can cause excessive pressure increases, the customer
shall be responsible for the elimination of excessive pressure situations
so as to avoid possible damage to the device and the water distribution
system.
5.Â
The discharge pipe of an air-gap separation shall terminate a minimum
of two (2) pipe diameters of the discharge pipe above the flood level
rim of the receiving vessel; in no case shall the distance be less
than one (1) inch.
6.Â
All water loading stations shall be equipped with an air-gap separation.
In addition, in order to prevent contaminants being transferred from
a hauling vessel to others subsequently using the station, each hauler
or customer shall provide his/her own hose for connection to the bottom
of the air-gap separation assembly. Such connection shall not cause
the air-gap separation assembly to become contaminated.
7.Â
The preferred location for installation of a reduced pressure principle
assembly is immediately inside the wall where the customer service
line enters a building. The pressure differential relief valve port
shall have a minimum clearance of twelve (12) inches above the floor
with adequate drainage provided such that the assembly will not be
subject to being submerged. No plug or additional piping shall be
affixed to the pressure differential relief valve port. Additionally,
the assembly should be installed at a location where any leakage from
the pressure differential relief valve port will be noticed by the
customer. If it is not possible to install the backflow prevention
assembly on an interior wall, then installation of the assembly shall
be in an above-ground protective enclosure.
8.Â
The preferred location for installation of a double-check valve assembly
or a double-check-detector check assembly is immediately inside the
wall where the customer service line enters a building. The assembly
shall have a minimum clearance of twelve (12) inches above the floor
with adequate drainage provided such that the assembly will not be
subject to being submerged. If it is not possible to install the backflow
prevention assembly on an interior wall, then installation of the
assembly shall be in either an above-ground protective enclosure or
in a meter pit or vault.
9.Â
No bypass piping shall be allowed around a backflow prevention assembly
unless the bypass is equipped with an identical backflow prevention
assembly.
10.Â
A double-check-detector check assembly shall be installed on all
unmetered service connections which provide for fire protection only.
As an alternative, a double-check valve assembly only may be installed
in those locations where the service connection is metered.
11.Â
Whenever a double-check-detector check assembly is installed on the
interior wall of a building, a remote register readout of the detector
meter shall be installed outside the building in a location that is
readily accessible, during normal business hours, to Water Purveyor
personnel.
[Ord. No. 327 §VIII, 6-2-1998]
A.Â
It
shall be the duty of the customer at any premises on which backflow
prevention assembly required by this Chapter are installed to have
inspections, tests and overhauls made in accordance with the following
schedule and more often where inspections indicate a need:
1.Â
Air-gap separations shall be inspected at the time of installation and each year thereafter, by a date which is no later than thirty (30) days past the anniversary of the original inspection test date to ensure that they continue to meet the requirements of Section 710.050.
2.Â
Reduced pressure principle backflow prevention assemblies shall be
inspected and tested at the time of installation and each year thereafter,
by a date which is no later than thirty (30) days past the anniversary
of the original inspection test date. They shall, in addition, be
dismantled, inspected internally, cleaned and repaired whenever needed
and/or at the request of the Water Purveyor. Inspections and tests
of the assemblies shall, as a minimum, insure that:
a.Â
The pressure differential relief valve operates to maintain the zone
between the two (2) check valves at least two (2) pounds per square
inch (2.0 psi) less than the supply pressure.
b.Â
The No. 2 check valve is leak-tight against reverse flow under all
pressure differentials.
c.Â
The static pressure drop across the No. 1 check valve is at least
three (3) pounds per square inch (3.0 psi) greater than the pressure
differential between the supply pressure and pressure in the zone
required to open the pressure differential relief valve.
3.Â
Double-check valve assemblies shall be inspected and tested at time
of installation and every year thereafter, by a date which is no later
than thirty (30) days past the anniversary of the original inspection
test date to ensure that both the No. 1 and No. 2 check valves are
leak-tight against reverse flow under all pressure differentials.
They shall, in addition, be dismantled, inspected internally, cleaned
and repaired whenever needed and/or at the request of the Water Purveyor.
4.Â
Double-check-detector check assemblies shall be inspected and tested
at time of installation and every year thereafter, by a date which
is no later than thirty (30) days past the anniversary of the original
inspection test date to ensure that the No. 1 and No. 2 valves in
both the main and detector lines are leak-tight against reverse flow
under all pressure differentials. The double-check valve assembly
located in the detector line shall have a static pressure drop which
is at least two (2) psi less than the mainline double-check valve
assembly. The complete assembly shall, in addition, be dismantled,
inspected internally, cleaned and repaired whenever needed and/or
at the request of the Water Purveyor.
B.Â
Inspections,
tests and overhauls of backflow prevention devices shall be made at
the expense of the customer and shall be performed by a backflow prevention
assembly tester certified.
C.Â
Whenever
backflow prevention assemblies required by this Chapter are found
to be defective, they shall be repaired or replaced at the expense
of the customer without delay.
D.Â
The
customer must maintain a complete record of each backflow prevention
assembly from purchase to retirement. This shall include a comprehensive
listing that includes a record of all tests, inspections, overhauls
and repairs. All records will be made available to the Water Purveyor.
E.Â
Backflow
prevention assemblies shall not be bypassed, made inoperative, removed
or otherwise made ineffective without specific authorization by the
Water Purveyor.
[Ord. No. 327 §IX, 6-2-1998]
A.Â
The
Department may issue a letter exempting a customer from the requirements
for the installation of backflow prevention assemblies if the customer
can show to the satisfaction of the Department and the Water Purveyor
that the activities taking place at the customer's facilities and
the materials used in connection with these activities or stored on
the premises cannot endanger the health of customers, or degrade the
water quality of the water distribution system, should backflow occur.
B.Â
An
exemption issued by the Department shall remain valid for not more
than three (3) years following the date of issuance. The customer
shall then reapply for an exemption, should he/she so desire, or alternatively
shall install an appropriate backflow prevention assembly.
C.Â
An
exemption shall be void if it is determined that the customer's facility
has become a backflow hazard.
D.Â
Those
customers granted an exemption by the Department shall report to the
Water Purveyor any proposed changes in processing, plumbing or materials
used or stored at the exempted facility at least fourteen (14) days
prior to making the change. Failure to do so shall void the exemption.
[Ord. No. 327 §X, 6-2-1998]
A.Â
New Service Connections.
1.Â
All customers, when making application for water service shall indicate
potential backflow hazard and/or the need for cross-connection control.
The Water Purveyor shall review the application and may request that
the customer or his/her authorized representative submit additional
information for the purpose of determining the need for and type of
backflow prevention assembly that may be required.
2.Â
If a backflow prevention assembly is not required for the service,
normal service application procedures shall follow.
3.Â
If a backflow prevention assembly is required, in addition to normal
service application procedures, the following procedures will be followed:
a.Â
The customer or his/her authorized representative shall submit detailed
plans and specifications on the proposed installation, along with
any other information that the Water Purveyor may require, for approval
by the Water Purveyor.
b.Â
Upon receiving approval of the proposed installation, the customer
shall schedule with the Water Purveyor the time for making the tap,
setting the meter and turning water on.
c.Â
Once the water has been turned on, the customer shall arrange with
the backflow prevention assembly tester — certified, to proceed
with the inspection and testing of the backflow prevention assembly.
The initial inspection and testing must be completed within thirty
(30) calendar days after the date the tap has been made. The backflow
prevention assembly tester — certified, within an additional
five (5) days, must provide satisfactory documentation to the Water
Purveyor that the backflow prevention assembly has been properly installed,
inspected and tested.
B.Â
Existing Service Connections.
1.Â
Whenever the Department, local governmental agency or the Water Purveyor
determines that an existing customer's service connection poses an
actual or potential backflow hazard, the Water Purveyor will notify
the customer that a backflow protection assembly is required to be
installed for protection of the water distribution system.
2.Â
The Division will request that the customer or his/her authorized
representative submit additional information for the purpose of determining
the need for and type of backflow prevention assemblies that may be
required.
3.Â
Upon determination of the need for and type of backflow prevention
assembly required, the customer or his/her authorized representative
shall submit detailed plans and specifications of the proposed installation,
along with any other information that the Water Purveyor may require,
for approval by the Water Purveyor.
4.Â
Upon receiving approval of the proposed installation, the customer
shall arrange with the backflow prevention assembly tester —
certified to proceed with the inspection and testing of the backflow
prevention assembly. The initial inspection and testing must be completed
within thirty (30) calendar days after the date the proposed installation
has been approved by the Water Purveyor. The backflow prevention assembly
tester — certified, within an additional five (5) days, must
provide satisfactory documentation to the Water Purveyor that the
backflow prevention assembly has been properly installed, inspected
and tested.
C.Â
Annual Maintenance And Inspections.
1.Â
The Water Purveyor will notify each customer having a backflow prevention
assembly, at least thirty (30) days prior to the anniversary of the
original inspection date, that his/her backflow prevention assembly
should be inspected and tested by the anniversary of the original
inspection date (hereinafter referred to as the due date).
2.Â
If the required documentation indicating that the inspection and
testing of a backflow prevention assembly has not been received by
the due date, the Water Purveyor will again notify the respective
customer(s) that the inspection and test need to be completed and
in the hands of the Water Purveyor not later than thirty (30) days
past the due date.
3.Â
If the required documentation indicating that the inspection and
testing of a backflow prevention assembly has not been received by
the Water Purveyor by forty-five (45) days past the due date, the
Water Purveyor will so notify the Department.
[Ord. No. 327 §XI, 6-2-1998]
A.Â
The
Water Purveyor shall deny or discontinue service, after reasonable
notice is given to the customer, whenever any backflow prevention
assembly required by this Chapter is not installed, tested or maintained
in a manner acceptable to the Water Purveyor, or if it is found that
the assembly has been removed or bypassed, or if an unprotected cross-connection
exists on the premises.
B.Â
Water
service to such premises shall not be restored until the customer
has corrected or eliminated such conditions or defects in conformance
with this Chapter to the satisfaction of the Water Purveyor.