R 325.11401. Definitions.
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Rule 1401. As used in this part:
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(a)
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Backflow means water of questionable quality, wastes
or other contaminants entering a public water supply system due to
a reversal of flow.
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(b)
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Safe air gap means the minimum distance of a water
inlet or opening above the maximum high water level or overflow rim
in a fixture, device, or container to which public water is furnished
which shall be not less that two times the inside diameter of the
water inlet pipe, but shall not be less than one inch and need not
be more than 12 inches.
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(c)
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Secondary water supply means a water supply system
maintained in addition to a public water supply, including, but not
limited to, water systems from ground or surface sources not meeting
the requirements of Act No. 399 of the Public Acts of Michigan of
1976 (MCL 325.1001 et seq., MSA 14.427(1) et seq.), or water from
a public water supply which in any way has been treated, processed,
or exposed to any possible contaminant or stored in other than an
approved storage facility.
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(d)
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Submerged inlet means a water pipe or extension
thereto from a public water supply terminating in a tank, vessel,
fixture, or appliance which may contain water of questionable quality,
wastes or other contaminant, and which is unprotected against backflow.
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(e)
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Water utility means a governmental unit, municipal
or private corporation, association, partnership or individual engaged
in furnishing water to the public for household or drinking purposes.
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R 325.11402. Compliance with regulations and local codes.
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Rule 1402. A connection with a public water supply
system shall comply with existing laws, ordinances and rules including:
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(a)
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Act No. 266 of the Public Acts of Michigan of 1929 (MCL 338.901
et seq., MSA 14.451 et seq.), as amended.
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(b)
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Local ordinances or rules providing acceptable protection against
cross connections.
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R 325.11403. Cross-connections prohibited.
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Rule 1403.
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(1)
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A cross-connection shall not be made between a public water
supply system and a secondary water supply.
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(2)
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A cross-connection shall not be made by submerged inlet.
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(3)
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A cross-connection shall not be made between a public water
supply and piping which may contain sanitary waste or a chemical contaminant.
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(4)
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A cross-connection shall not be made between a public water
system and piping immersed in a tank or vessel which may contain a
contaminant.
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R 325.11404. Local cross-connection control programs.
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Rule 1404.
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(1)
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A water utility shall develop a comprehensive control program
for the elimination and prevention of all cross-connections. The plan
for the program shall be submitted to the department of public health
for review and approval within one year after the effective date of
these rules. When the plan is approved, the water utility shall implement
the program for removal of all existing cross-connections and prevention
of all future cross-connections.
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(2)
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The program shall include but not be limited to all of the following:
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(a)
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A complete description of the method of administering the program,
including the designation of inspection and enforcement agency or
agencies. The local authority for implementation of the program shall
be indicated, preferably by ordinance.
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(b)
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A time schedule for inspection and reinspection of all water
utility customers' premises for possible crossconnections. The periodic
reinspection shall be used to ascertain whether or not safe air gaps
or required protective devices are in place and in working order.
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(c)
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A description of the methods and devices, as approved by the
department of public health, used to protect the public water supply.
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R 325.11405. Corrections and protective devices.
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Rule 1405.
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(1)
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A user of public water shall obtain written approval by the
water utility or authorized inspection agency of any proposed corrective
action or protective device before installation. It shall also be
required that a yearly test of backflow protection devices shall be
recorded with township offices.
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(2)
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The total time allowed for completion of the necessary corrections
shall be contingent upon the degree of hazard involved and include
the time required to obtain and install equipment. If the cross-connection
has not been removed, after a reasonable period of time, the water
utility shall physically separate the public water supply from the
on-site piping system in such a manner that the two systems cannot
again be connected by any unauthorized person.
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(3)
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A water utility shall report annually to the department of public
health on the status of the cross-connection control program on a
form provided by the department.
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R 325.11406. Piping identification.
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Rule 1406. When a secondary water source is used
in addition to a public water supply system, exposed public water
and secondary water piping shall be identified by distinguishing colors
or tags and so maintained that each pipe may it in its entirety, it
will be necessary to protect the public water supply at the service
connection in a manner acceptable to the department of public health.
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R 325-11407. Private water storage tanks.
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Rule 1407. A private water storage tank supplied
from a public water supply system shall be deemed a secondary water
supply unless it is designated and approved for potable water usage.
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