[R.O. 2008 § 700.320; R.O. 2007
§ 700.320; Ord. No. 1810 Art. III § 2, 4-17-1990]
A.
Each water customer and/or user shall install
an approved backflow prevention device on each service line to their
water system serving the premises where, in the judgment of the City
or the Missouri Department of Natural Resources, actual or potential
hazards to the public (City) potable water system exist. The type
and degree of protection required shall be commensurate with the degree
of hazard.
B.
Each water customer required by the City
or the Missouri Department of Natural Resources shall follow the rules,
regulations and requirements set forth in this Article.
[R.O. 2008 § 700.330; R.O. 2007
§ 700.330; Ord. No. 1810 Art. VII § 1, 4-17-1990]
All connections to the City Water
System shall be subject to the City Backflow Prevention regulations
and all other regulations that may be adopted from time to time by
the United States Environmental Protection Agency, the Missouri Department
of Natural Resources, or the City of O'Fallon, Missouri.
[R.O. 2008 § 700.340; R.O. 2007
§ 700.340; Ord. No. 1592 § 2, 5-17-1988]
A.
No water service connection shall be installed
or maintained to any premises where actual or potential cross-connections
to the public potable or customer's water system may exist unless
such actual or potential cross-connections are abated or controlled
to the satisfaction of the water supplier and as required by the laws
and regulations of the Missouri Department of Natural Resources.
B.
No connection shall be installed or maintained
whereby an auxiliary water supply may enter a public potable or customer'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 supplier and the Missouri Department of Natural Resources.
C.
No water service connection shall be installed
or maintained to any premises in which the plumbing system, facilities,
and fixtures have not been constructed and installed using acceptable
plumbing practices considered by the water supplier as necessary for
the protection of health and safety.
[R.O. 2008 § 700.350; R.O. 2007
§ 700.350; Ord. No. 1592 § 3, 5-17-1988]
A.
The customer's premises shall be open at
all reasonable times to the water supplier, or his/her authorized
representative, for the conduction of surveys and investigations of
water use practices within the customer's premises to determine whether
there are actual or potential cross-connections to the customer water
system through which contaminants or pollutants could backflow into
the public potable water system.
B.
On request by the water supplier or his/her
authorized representative, the customer shall furnish information
on water user practices within his/her premises.
C.
It shall be the responsibility of the water
customer to conduct periodic survey 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 § 700.360; R.O. 2007
§ 700.360; Ord. No. 1592 § 4, 5-17-1988]
A.
The type of protection required 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 system or 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 approve 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.
[R.O. 2008 § 700.370; R.O. 2007
§ 700.370; Ord. No. 1592 § 5, 5-17-1988]
A.
An approved backflow prevention device
shall be installed on each service line to a customer's water system
serving premises where, in the judgment of the water supplier or the
Missouri Department of Natural Resources, actual or potential hazards
to the public potable water system exist. The type and degree of protection
required shall be commensurate with the degree of hazard.
B.
An approved air-gap separation or reduced
pressure principle backflow prevention device shall be installed after
the metered flow of any service connection or within any premises
where, in the judgement of the water supplier or the Missouri Department
of Natural Resources, 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 health should a cross-connection occur, even though such cross-connection
may not exist at the time the backflow prevention device is required
to be installed. This includes but is not limited to the following
situations:
1.
Premises having an auxiliary water
supply, unless the quality of the auxiliary supply is acceptable to
the water supplier and the Missouri Department of Natural Resources.
2.
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.
3.
Premises where entry is restricted
so that inspection for cross-connections cannot be made with sufficient
frequency or at sufficiently short notice to ensure the cross-connections
do not exist.
4.
Premises having a repeated history
of cross-connections being established or re-established.
5.
Premises, which due to the nature
of the enterprise therein, are subject to recurring modification or
expansion.
6.
Premises on which any substance is
handled under pressure so as to permit entry into the public water
supply, or where a cross-connection could reasonably be expected to
occur. This shall include the handling of process waters and cooling
waters.
7.
Premises where materials of a toxic
or hazardous nature are handled such that if backsiphonage or backpressure
should occur, a serious health hazard may result.
C.
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
device is required by the water supplier and the Missouri Department
of Natural Resources to protect the public water supply 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 supplier and the Missouri Department
of Natural Resources.
1.
Aircraft and missile plants.
2.
Automotive plants.
3.
Auxiliary water systems and water
loading stations.
4.
Beverage bottling plants.
5.
Canneries, packing houses, reduction
plants, and stockyards.
6.
Car-washing facilities.
7.
Chemical manufacturing, processing,
compounding, or treatment plants.
8.
Dairies, animal and veterinary clinics.
9.
Film laboratories.
10.
Fire protective systems.
11.
Hazardous waste storage and disposal
sites.
12.
Hospitals, mortuaries, clinics, medical
buildings.
13.
Industries using toxic substances.
14.
Irrigation and sprinkler systems,
residential or commercial, any size.
15.
Laundries and dye works.
16.
Metal manufacturing, cleaning, processing,
and fabrication plants.
17.
Nursing or convalescent homes.
18.
Oil and gas production, storage or
transmission properties.
19.
Paper and paper products plants.
20.
Plant nurseries, tree farms and fertilizer
facilities.
21.
Plating plants.
22.
Power plants.
23.
Printing and publishing facilities.
24.
Radioactive material processing plants
or nuclear reactors.
25.
Research and analytical laboratories.
26.
Rubber plants, natural and synthetic.
27.
Sewage and storm drainage facilities—pumping
stations and treatment plants.
28.
Water front facilities and industries.
29.
Any customer or user using any type
of booster pressure pumps for any purpose or reason.
D.
The water supplier, at his/her discretion
may require a backflow prevention device at facilities other than
those above that he/she deems may have a hazardous or potentially
hazardous condition.
[R.O. 2008 § 700.380; R.O. 2007
§ 700.380; Ord. No. 1592 § 6, 5-17-1988]
A.
Any backflow prevention device required
by this Chapter shall be of a type, model and construction approved
by the water supplier and the Missouri Department of Natural Resources
as follows:
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
three (3) inches.
2.
Double-check valve assemblies or
reduced pressure principle backflow prevention devices shall be of
Watts manufacture series No. 709 or 909 or an approved equivalent.
B.
Existing backflow prevention devices approved
by the water supplier at the time of installation and properly maintained
shall, except for inspection and maintenance requirements, be excluded
from the requirements of this Chapter so long as the water supplier
is assured that they will satisfactorily protect the water system.
Whenever the existing device is moved from its present location, or
requires more than minimum maintenance, or when the water supplier
finds that the maintenance or lack of maintenance constitutes a hazard
to health, the unit shall be replaced by a backflow prevention device
meeting the requirements of this Chapter.
[R.O. 2008 § 700.390; R.O. 2007
§ 700.390; Ord. No. 1592 § 7, 5-17-1988]
Backflow prevention devices required
by this Chapter shall be installed at a location and in a manner approved
by the water supplier and shall be installed at the expense of the
water customer.
[R.O. 2008 § 700.400; R.O. 2007
§ 700.400; Ord. No. 1592 § 8, 5-17-1988; Ord. No. 3089 Art.
I, 12-22-1993]
A.
Periodic inspection and testing schedules
shall be established by the water supplier for all backflow prevention
devices. Inspections will not exceed the following intervals.
1.
Air-gap separations shall be inspected
at the time of installation and every twelve (12) months thereafter.
2.
Double-check valve assemblies shall
be inspected and tested for tightness at the 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
the 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.
B.
All costs associated with inspections,
testing, cleaning, repairs, overhaul or replacement of backflow prevention
devices shall be the responsibility of the water customer. All inspections,
testing, cleaning, repairs and overhauls of backflow prevention devices
shall be performed by a State of Missouri Certified Backflow Prevention
Service Tester. It shall be the responsibility of the customer to
provide the City with written inspection documentation upon receipt.
C.
Backflow prevention devices found to be
defective shall be repaired or replaced at the expense of the water
customer without delay and in any event no later than thirty (30)
days from the discovery of the defect.
D.
Backflow prevention devices shall not be
bypassed, made inoperative, remove, or otherwise made ineffective
without specific written authorization by the water supplier. Bypass
piping around a backflow prevention assembly is allowed only if the
bypass is equipped with an identical backflow prevention assembly.
E.
The water supplier shall maintain a complete
record of each backflow prevention device. Records will include comprehensive
listing of installation, tests, inspections, cleaning, repairs, and
overhauls and generally be a complete history of each backflow prevention
device from purchase to retirement. Records of customer repairs, cleaning,
overhaul, and replacement shall be made available to the water supplier
upon request.
[Ord. No. 6879, 2-10-2022]
A.
Reports
of inspections of all backflow devices shall be submitted to the City
annually prior to June 1st.
B.
To
be accepted, the date of testing of all backflow devices shall be
after January 1 of the current year.
C.
All
backflow inspection reports shall be prepared by an inspector certified
by the Missouri Department of Natural Resources to make inspections
of backflow devices.
D.
Reports
received after the June 1st deadline will be subject to a late fee
of thirty dollars ($30.00) for residential properties and one hundred
dollars ($100.00) for non-residential properties for each backflow
device.
E.
Properties
not submitting the required inspection report(s) by July 1 each year
will be subject to disconnection of their water service or code enforcement
actions following standard City procedures for such actions.
[R.O. 2008 § 700.410; R.O. 2007
§ 700.410; Ord. No. 1592 § 9, 5-17-1988]
A.
The water supplier shall deny or discontinue,
after reasonable notice to the customer thereof, the water service
to any premises wherein any backflow prevention device required by
this Chapter is not installed, tested, and maintained in a manner
acceptable to the water supplier 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.
B.
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 supplier.
