[R.O. 2009 § 740.010; Ord. No. 3239 § 1, 9-24-2015]
A.
The purpose of these rules and regulations
is:
1.
To protect the public potable water
supply from contamination or pollution by isolating within the consumer's
water system contaminants or pollutants which could backflow through
the service connection into the public potable water system.
2.
To promote the elimination or control
of existing cross-connections, actual or potential, between the public
or consumer's potable water system and non-potable water systems,
plumbing fixtures and sources or systems containing process fluids.
3.
To provide for the maintenance of
a continuing program of cross-connection control which will systematically
and effectively prevent the contamination or pollution of the public
and consumer's potable water system.
[R.O. 2009 § 740.020; Ord. No. 3239 § 1, 9-24-2015]
These rules and regulations shall
apply to all premises served by the public potable water system of
the City.
[1]
Editor's Note: Former Section 740.030, Policy, was repealed
12-13-2022 by Ord. No. 3811. Prior history includes R.O. 2009 § 740.030
and Ord. No. 3239.
[R.O. 2009 § 740.040; Ord. No. 3239 § 1, 9-24-2015; Ord. No. 3811, 12-13-2022]
The following definitions shall apply
in the interpretation and enforcement of this Chapter:
The unobstructed vertical distance through the free atmosphere
between the lowest opening from any pipe or faucet supply water to
a tank, plumbing fixture or other device and the overflow level rim
of the receptacle.
A backflow prevention device or method accepted by the water
purveyor as suitable for the proposed use.
Any water system on, or available to, the premises, other
than the public water system, and includes the water supplied by the
system. These auxiliary waters may include water from another purveyor's
public water system; or water from a source such as wells, lakes or
streams, or process fluids; or used water. They may be polluted, or
contaminated, or objectionable, or constitute a water source or system
over which the water purveyor does not have control.
The flow of water or other liquids, mixtures or substances
into the distributing pipes, or a potable water supply from any source
other than the intended source of the potable water supply.
Any device, method or type of construction intended to prevent
backflow into a potable water system.
The City of Bolivar, Missouri.
The owner or person in control of any premises supplied by
or in any manner connected to a public water system.
Any water system, located on the consumer's premises, supplied
by, or in any manner connected to, a public water system. A household
plumbing system is considered to be a consumer's water system.
An impairment of the quality of the water by sewage of process
fluids or waste to a degree which could create an actual hazard to
the public health through poisoning or through spread or disease by
exposure.
The water discharged from any use such as air-conditioning,
cooling or refrigeration, or to which the pollutant added is heat.
Any arrangement whereby backflow can occur.
A term derived from an evaluation of the potential risk to
health and the adverse effect upon the potable water system.
The Director of the Missouri Department of Natural Resources
or any other authorized enforcement agency.
An assembly composed of two (2) single, independently acting
check valves including tightly closing shutoff valves located at each
end of the assembly and suitable connections for testing the water
tightness of each check valve.
Any condition, device or practice in a water system or its
operation that creates, or may create, a danger to the health and
well-being of users. The word "severe" as used to qualify "health
hazard" means a hazard to the health of the user that could reasonably
be expected to result in a significant morbidity or death.
An arrangement or device that will allow alternate but not
simultaneous use of two (2) sources of water.
Water not safe for drinking, personal or culinary use.
The State, any political subdivision, public or private corporation,
individual, partnership, or other legal entity.
The presence in water of any foreign substance that tends
to degrade its quality so as to constitute a hazard or impair the
usefulness or quality 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.
A condition through which an anesthetically objectionable
or degrading material not dangerous to health may enter the public
water system or a potable consumer's water system.
Water which is satisfactory for drinking, culinary, and domestic
purposes and meets the requirements of the Department of Health.
Any fluid or solution which may be chemically, biologically,
or otherwise contaminated or polluted in a form or concentration such
as would constitute a health, pollutional or system hazard if introduced
into the public or a potable consumer's water system. This includes,
but is not limited to:
Polluted or contaminated water.
Process waters.
Used waters originating from the
public water system which may have deteriorated in sanitary quality.
Cooling waters.
Contaminated natural waters taken
from wells, lakes, streams, or irrigation systems.
Chemicals in solution or suspension.
Oils, gases, acids, alkalis, and
other liquid and gaseous fluids used in industrial or other processes,
or for firefighting purposes.
Any potable water system designated or offered for use by
the general public within the City, whether publicly owned or owned
by Liberty Utilities (Missouri Water), LLC, or its successor(s) in
interest.
A device containing a minimum of two (2) independently acting
check valves together with an automatically operated pressure differential
relief valve located between the two (2) check valves. During normal
flow and at the cessation of normal flow, the pressure between these
two (2) checks shall be less than the supply pressure. In case of
leakage of either check valve, the differential relief valve, by discharging
to the atmosphere, shall operate to maintain the pressure between
the check valves at less than the supply pressure. The unit must include
tightly closing shutoff valves located at each end of the device,
and each device shall be fitted with properly located test cocks.
A sewer which carries sewage and to which stormwater, surface
water and groundwaters are not intentionally admitted.
The terminal end of a service line from the public water
system. If a meter is installed at the end of the service, then the
service connection means the downstream end of the meter.
A combination of the water-carried wastes from residences,
business buildings, institutions and industrial establishments, together
with such groundwater, surface water and stormwaters as may be present.
Any arrangement of devices and structures used for treating
sewage.
A condition posing an actual or potential threat of damage
to the physical properties of the public water system or a potable
consumer's water system.
Any water supplied by a water purveyor from a public water
system to a consumer's water system after it has passed through the
service connection and is no longer under the control of the water
purveyor.
Any individual, firm, partnership, corporation, the Federal
or State Government, or any unit, agency, political corporation or
subdivision of either the Federal or State Government, or other agency
receiving water services, or to whom water services are made available
from the public water system facilities pursuant to a written water
user's agreement.
The owner or operator of a public water system.
[R.O. 2009 § 740.050; Ord. No. 3239 § 1, 9-24-2015; Ord. No. 3811, 12-13-2022]
A.
The water system shall be considered as
made up of two (2) parts: the public potable water system and the
consumer's water system.
B.
The public potable water system shall consist
of the source facilities and the distribution system and shall include
all those facilities of the potable water system under the control
of the water purveyor up to the point where the consumer's water system
begins.
C.
The source shall include all components
of the facilities utilized in the production, treatment, storage and
delivery of water to the public distribution system.
D.
The public distribution system shall include
the network of conduits used for delivery of water from the source
to the consumer's water system.
E.
The consumer's water system shall include
those parts of the facilities beyond the service connection which
are utilized in conveying water from the public distribution system
to points of use.
[R.O. 2009 § 740.060; Ord. No. 3239 § 1, 9-24-2015; Ord. No. 3811, 12-13-2022]
A.
No water service connection shall be installed
or maintained to any premises where actual or potential cross-connections
to the public potable or consumer's water system may exist unless
such actual or potential cross-connections are abated or controlled
to the satisfaction of the water purveyor.
B.
No connection shall be installed or maintained
whereby an auxiliary water supply may enter a public potable or consumer's
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.
[R.O. 2009 § 740.070; Ord. No. 3239 § 1, 9-24-2015; Ord. No. 3811, 12-13-2022]
A.
The consumer's premises shall be open at
all reasonable times to the water purveyor, or his/her authorized
representative, for the conduction of surveys and investigations of
water use practices within the consumer's premises to determine whether
there are actual or potential cross-connections to the consumer's
water system through which contaminated or pollutants could backflow
into the public potable water system.
B.
It shall be the responsibility of the water
consumer 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 or the public potable water system.
[R.O. 2009 § 740.080; Ord. No. 3239 § 1, 9-24-2015; Ord. No. 3811, 12-13-2022]
A.
An approved backflow prevention device
shall be installed on each service line to a consumer's water system
serving premises where, in the judgment of the water purveyor, actual
or potential hazards to the public potable water system exist.
B.
An approved backflow prevention device
shall be installed on each service line to a consumer's water system
serving premises where one (1) or more of following conditions exist:
1.
Premises having auxiliary water supply,
unless such auxiliary supply is accepted as an additional source by
the water purveyor
2.
Premises on which any substance is
handled in such a fashion as to create an actual or potential hazard
to the public potable water system. This shall include premises having
sources or systems containing process fluids or waters originating
from the public potable water system which arc no longer under the
sanitary control of the water purveyor.
3.
Premises having internal cross-connections
that, in the judgment of the water purveyor, are not correctable or
intricate plumbing arrangements which make it impractical to determine
whether or not cross-connections exist.
4.
Premises where, because of security
requirements or other prohibitions or restrictions, it is impossible
or impractical to make a complete cross-connection survey.
5.
Premises having a repeated history
of cross-connections being established or re-established.
6.
Others specified by the water purveyor.
C.
An approved backflow prevention device
shall be installed on each service line to a consumer's water system
serving, but not necessarily limited to, the following types of facilities
unless the water purveyor determines that no actual or potential hazard
to the public potable water system exists:
1.
Hospitals, mortuaries, clinics, nursing
homes, veterinary clinics, dental clinics, and other medical facilities.
2.
Laboratories.
3.
Piers, docks, waterfront facilities.
4.
Sewage treatment plants, sewage pumping
station or stormwater pumping station.
5.
Food or beverage processing plants.
6.
Chemical plants.
7.
Metal plating industries.
8.
Petroleum processing or storage plants.
9.
Radioactive material processing plants
or nuclear reactors.
10.
Car wash.
11.
Commercial facilities that use herbicides,
pesticides, fertilizers or any chemical which would be a contaminant
to the public water system.
12.
Commercial laundries and dye works.
13.
Others specified by the water purveyor
and/or by the Rules of Department of Natural Resources, Division 60
- Public Drinking Water Program, Chapter 11 - Backflow Prevention.
14.
An approved backflow prevention device
shall be installed at any point of connection between the public potable
or consumer's water system and an auxiliary water supply, unless such
auxiliary supply is accepted as an additional source by the water
purveyor.
[R.O. 2009 § 740.090; Ord. No. 3239 § 1, 9-24-2015]
A.
The type of protection required under Section 740.080(A), (B), and (C) of these regulations shall depend on the degree of hazard which exists as follows:
1.
An approved air-gap separation shall
be installed where the public potable water system may be contaminated
with substances that could cause a severe health hazard.
2.
An approved air-gap separation or
an approved reduced pressure principle backflow prevention device
shall be installed where the public potable water system may be contaminated
with a substance that could cause a system or health hazard.
3.
An approved air-gap separation or
an approved reduced pressure principle backflow prevention device
or an approved double-check valve assembly shall be installed where
the public potable water system may be polluted with substances that
could cause a pollutional hazard not dangerous to health.
B.
The type of protection required under Section 740.080 of these regulations shall be an approved air-gap separation or an approved interchangeable connection.
C.
Where an auxiliary water supply is used as a secondary source of water for fire protection system, the provisions of Section 740.090(B) for an approved air-gap separation or an approved interchangeable connection may not be required, provided:
1.
At premises where the auxiliary water
supply may be contaminated with substances that could cause a system
or health hazard, the public or consumer's potable water system shall
be protected against backflow by installation of an approved reduced
pressure principle backflow prevention device.
2.
At all other premises, the public
or consumer's potable water system shall be protected against backflow
by installation of either an approved reduced pressure principle backflow
prevention device or an approved double-check valve assembly.
3.
The public or consumer's potable
water system shall be the primary source of water for the fire protection
system.
4.
The fire protection system shall
be normally filled with water from the public or consumer's potable
water system.
5.
The water in the fire protection
system shall be used for fire protection only with no regular use
of water from the fire protection system downstream from the approved
backflow prevention device.
6.
The water in the fire protection
system shall contain no additives.
[R.O. 2009 § 740.100; Ord. No. 3239 § 1, 9-24-2015]
A.
Any backflow prevention device required
by these rules and regulations shall be of a model or construction
approved by the Water Purveyor and shall comply with the following:
1.
Air-gap separation to be approved
shall be at least twice the diameter of the supply pipe, measured
vertically above the top rim of the vessel, but in no case less than
one (1) inch.
2.
A double-check (DC) valve assembly
or a reduced pressure principle backflow prevention (RP) device shall
be approved by the Water Purveyor.
3.
No pressure vacuum breakers (PVB) are permitted. When replacing PVBs, use approved DC or RP assemblies in accordance with this Chapter 740, Cross-Connection Control Policy.
4.
An interchangeable connection to
be approved shall be either a swing type connector or a four-way valve
of the lubricated plug type that operates through a mechanism which
unseats the plug, turns it ninety degrees (90°) and reseats the
plug. Four-way valves shall not be used as stop valves but must have
separate stop valves on each pipe connected to the valve. The telltale
port on the four-way valve shall have no piping connected and the
threads or flange on this port shall be destroyed so that a connection
cannot be made.
B.
Existing backflow prevention devices approved by the Water Purveyor at the time of installation and properly maintained shall, except for inspection and maintenance requirements, be excluded from the requirement of Section 740.100(A); this regulation providing that the Water Purveyor is assured that they will satisfactorily protect the public potable water system. Whenever the existing device is moved from the present location or requires more than minimum maintenance or when the Water Purveyor finds that the maintenance of the device constitutes a hazard to health, the device shall be replaced by a backflow prevention device meeting the requirements of those regulations.
[R.O. 2009 § 740.110; Ord. No. 3239 § 1, 9-24-2015]
A.
Backflow prevention devices required by these rules and regulations shall be installed at a location and in a manner approved by the Water Purveyor and shall be installed by and at the expense of the water consumer. In addition, any backflow prevention device required by Section 740.080(C) of these regulations shall be installed at a location and in a manner approved.
B.
Backflow prevention devices installed on
the service line to a consumer's water system shall be located on
the consumer's side of the water meter, as close to the meter as is
reasonably practical, and prior to any other connection.
C.
Pits or vaults shall be of watertight construction,
be so located and constructed as to prevent flooding and shall be
maintained free from standing water by means of either a sump pump
or a suitable drain. Such sump pump or drain shall not connect to
a sanitary sewer nor permit flooding of the pit or vault by reverse
flow from its point of discharge. An access ladder and adequate natural
or artificial lighting shall be provided to permit maintenance, inspection
and testing of the backflow prevention device.
D.
All new commercial buildings shall have
an approved backflow assembly installed in a vault as close to the
water main as possible before water service shall be granted.
E.
All new private water main extensions shall
have an approved backflow assembly installed in a vault as close to
the water main as possible before water service shall be granted.
F.
No reduced pressure (RP) assemblies will
be allowed to be installed underground.
G.
All new backflow assemblies installed shall
be tested within thirty (30) days of installation and a test report
supplied to the City. A City permit shall be obtained prior to the
installation of any backflow assembly.
[R.O. 2009 § 740.120; Ord. No. 3239 § 1, 9-24-2015; Ord. No. 3450, 4-17-2018; Ord. No. 3811, 12-13-2022]
A.
It shall be the duty of the consumer at
any premises on which backflow prevention devices required by these
regulations are installed to have inspection, tests and overhaul made
in accordance with the following schedule, or more often where inspections
indicate a need:
1.
Air separation shall be inspected
at time of installation and: (i) by October 1, every calendar year
thereafter for commercial use properties; and (ii) by April 1, every
calendar year thereafter for residential use properties.
2.
Commercial double-check (DC) valve
assemblies shall be inspected and tested for tightness at time of
installation and by October 1, every calendar year thereafter. They
shall be dismantled, inspected internally, cleaned and repaired whenever
needed and at least every thirty (30) months.
3.
Commercial reduced pressure (RP)
principle backflow prevention devices shall be inspected and tested
for tightness at time of installation and by October 1, every calendar
year thereafter. They shall be dismantled, inspected internally, cleaned
and repaired whenever needed and at least every five (5) years.
4.
Interchangeable connections shall
be inspected at time of installation; and: (i) by October 1, every
calendar year thereafter for commercial use properties; and (ii) by
April 1, every calendar year thereafter for residential use properties.
5.
All irrigation or lawn sprinkler
backflow assemblies shall be tested by April 1 of each year.
6.
All other residential backflow assemblies
shall be tested on or before April 1 of each year.
7.
Any and all backflow preventor deficiencies
identified during testing shall be repaired within thirty (30) days
of the initial test date and retested. This process must be repeated
until the deficiencies arc corrected with a passing result after testing.
B.
Inspections, tests and overhaul of back
flow prevention devices shall be made at the expense of the water
consumer and shall be performed by a State-certified person to inspect,
test and overhaul backflow prevention devices.
C.
Whenever backflow prevention devices required
by these regulations are found to be defective, they shall be repaired
or replaced at the expense of the consumer without delay pursuant
to the provisions of this Section.
D.
The water consumer must maintain a complete
record of each backflow prevention device from purchase to retirement.
This shall include a comprehensive listing that includes a record
of all tests, inspections and repairs. Records of inspection, tests,
repairs and overhaul shall be submitted to the water purveyor upon
request.
E.
Backflow prevention devices shall not be
bypassed, made inoperative, removed or otherwise made ineffective
without specific authorization by the water purveyor.
[R.O. 2009 § 740.130; Ord. No. 3239 § 1, 9-24-2015]
A.
Where a booster pump has been installed
on the service line to or within any premises, such pump shall be
equipped with a low pressure cutoff device designed to shut off the
booster pump when the pressure in the service line on the suction
side of the pump drops to ten (10) pounds per square inch gauge or
less.
B.
It shall be the duty of the water consumer
to maintain the low pressure cutoff device in proper working order,
and to certify to the Water Purveyor, at least once a year, that the
device is operable.
[R.O. 2009 § 740.140; Ord. No. 3239 § 1, 9-24-2015]
A.
The Water Purveyor shall deny or discontinue,
after reasonable notice to the occupants thereof, the water service
to any premises where in any backflow prevention device required by
these regulations is not installed, tested and maintained in a manner
acceptable to the Water Purveyor, or if it is found that the backflow
prevention device has been removed or bypassed, or if an unprotected
cross-connection exists on the premises, or if a low pressure cutoff
required by these regulations is not installed and maintained in working
order.
B.
Water service to such premises shall not
be restored until the consumer has corrected or eliminated such conditions
or defects in conformance with these regulations and to the satisfaction
of the Water Purveyor.
C.
Written Notice. Any person found to be
violating any provision of this Chapter shall be served by the City
with a written notice stating the nature of the violation and providing
a reasonable time limit for the satisfactory correction thereof. The
offender shall, within the period of time stated in such notice, permanently
cease all violations.
E.
Liable To City. Any person violating any
of the provisions of this Chapter shall become liable to the City
for any expense, loss or damage occasioned the City by reason of such
violation."
