[R.O. 2008 §700.010; Ord. No. 302 §1, 7-15-1980]
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. 2008 §700.020; Ord. No. 302 §1, 7-15-1980]
These rules and regulations shall apply to all premises served
by the public potable water system of the City of Ironton, Missouri.
[R.O. 2008 §700.030; Ord. No. 302 §1, 7-15-1980]
The Water Quality Supervisor shall be responsible for protection
of the public potable water system from contamination due to backflow
of contaminants through the water service connection. If, in the judgment
of the Water Quality Supervisor or his/her authorized representative,
contamination shall exist due to backflow of contaminants through
the water service connection, the Supervisor or his/her authorized
representative shall give notice to the consumer to install an approved
backflow prevention device at each service connection to his premises.
The consumer shall immediately install such approved device or devices
at his/her own expense, and failure, refusal or inability on the part
of the consumer to install such device or devices immediately shall
constitute grounds for discontinuing water service to the premises
until such device or devices have been installed.
[R.O. 2008 §700.040; Ord. No. 302 §2, 7-15-1980]
The following definitions shall apply in the interpretation
and enforcement of these rules and regulations:
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 has been 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, including 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 of 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 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 or process
fluids or waste to a degree which could create an actual hazard to
the public health through poisoning or through spread of disease by
exposure.
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 watertightness
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 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 aesthetically 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 waters.
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.
Oils, gases, acids, alkalis, and other liquid
and gaseous fluids used in industrial or other processes, or for firefighting
purposes.
Any publicly or privately owned potable water system.
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 clocks.
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 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.
The owner or operator of a public water system.
[R.O. 2008 §700.050; Ord. No. 302 §3, 7-15-1980]
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
Quality Supervisor 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. 2008 §700.060; Ord. No. 302 §4, 7-15-1980]
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 Quality Supervisor.
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.
[R.O. 2008 §700.070; Ord. No. 302 §5, 7-15-1980]
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 contaminants or pollutants could backflow into
the public potable water system.
B.
On request by the water purveyor or his/her authorized
representative, the consumer shall furnish information on water use
practices within his/her premises.
C.
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. 2008 §700.080; Ord. No. 302 §6, 7-15-1980]
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 the following conditions exist:
1.
Premises having an auxiliary water supply, unless
such auxiliary water 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 are 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 reestablished.
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.
2.
Laboratories.
3.
Piers, docks, waterfront facilities.
4.
Sewage treatment plants, sewage pumping station
or storm water 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 washes.
11.
Others specified by the water purveyor.
D.
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. 2008 §700.090; Ord. No. 302 §7, 7-15-1980]
A.
The type of protection required under Section 700.080, Subsections (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.
C.
Where an auxiliary water supply is used as a secondary source of water for a fire protection system, the provisions of Subsection (B) above for an approved air-gap separation or an approved interchangeable connection may not be required, providing:
1.
At premises where the auxiliary water supply may
be contaminated with substances which 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. 2008 §700.100; Ord. No. 302 §8, 7-15-1980]
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 valve assembly or a reduced-pressure-principle
backflow prevention device shall be approved by the water purveyor
and shall appear on the current "list of approved backflow prevention
devices."
3.
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 Subsection (A) above, of this regulation, providing 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 these regulations.
[R.O. 2008 §700.110; Ord. No. 302 §9, 7-15-1980]
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 700.080, Subsections (B) and (C), of these regulations shall be installed at a location and in a manner approved by the City of Ironton.
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.
[R.O. 2008 §700.120; Ord. No. 302 §10, 7-15-1980]
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-gap separation shall be inspected at time
of installation and at least every twelve (12) months thereafter.
2.
Double check valve assemblies shall be inspected
and tested for tightness at time of installation and at least every
twelve (12) months thereafter. They shall be dismantled, inspected
internally, cleaned and repaired whenever needed and at least every
thirty (30) months.
3.
Reduced-pressure-principle backflow prevention
devices shall be inspected and tested for tightness at time of installation
and at least every twelve (12) months 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 at least every twelve (12) months thereafter.
B.
Inspections, tests, and overhaul of backflow prevention
devices shall be made at the expense of the water consumer and shall
be performed by the water purveyor or a 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.
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 inspections, tests, repairs and
overhaul shall be submitted to the water purveyor.
E.
Backflow prevention devices shall not be bypassed, made
inoperative, removed or otherwise made ineffective without specific
authorization by the water purveyor.
[R.O. 2008 §700.130; Ord. No. 302 §11, 7-15-1980]
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. 2008 §700.140; Ord. No. 302 §12, 7-15-1980]
A.
The water purveyor shall deny or discontinue, after fifteen
(15) days' notice to the occupants thereof, the water service
in any premises wherein 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.
If the control device is tampered with or removed after
installation without written permission by the water purveyor, the
offense will be considered an ordinance violation against the property
owner and punishable by a fine of up to five hundred dollars ($500.00).
