[Adopted 3-17-2011 by Ord. No. 11-05]
This article sets forth the requirements for the Menominee Indian
Tribe's potable water within water supply systems when and where
there is the possibility of contamination due to cross-connections
or backflow conditions. This shall be called a "cross-connection program."
The following definitions are applicable to this article:
A physical separation sufficient to prevent backflow between
the free-flowing discharge end of the potable water system and any
other system. Physically defined as a distance equal to twice the
diameter of the supply side pipe diameter but never less than one
inch.
A device that prevents backsiphonage by creating an atmospheric
vent when there is either a negative pressure or subatmospheric pressure
in a water system.
The flow of water or other liquids, mixtures or substances,
under positive or reduced pressure in the distribution pipes of a
potable water supply from any source other than its intended source.
A device or means designed to prevent backflow or backsiphonage.
Most commonly categorized as air gap, reduced pressure principle device,
double-check valve assembly, pressure vacuum breaker, atmospheric
vacuum breaker, hose bib vacuum breaker, residential dual check, double
check with intermediate atmospheric vent, and barometric loop.
A condition in which a facility's system pressure is
greater than the supplier's system pressure.
The flow of water or other liquids, mixtures or substances
into the distribution pipes of a potable water supply system from
any source other than its intended source caused by the sudden reduction
of pressure in the potable water supply system.
A fabricated piping arrangement rising at least 35 feet at
its topmost point above the highest fixture it supplies to prevent
backsiphonage.
A business entity that manufactures, sells or conveys an
idea, service or product.
A substance that will impair the potable water supply by
the introduction of any foreign substance that degrades the quality
and creates a serious health hazard.
Connection or potential connection between any part of a
water supply system and another environment containing substances
in a manner that, under any circumstances, would allow the substances
to enter the water supply system by means of backsiphonage or back
pressure.
The potential risk to public health posed by cross-connections.
Normally, the risk to the water system is divided into one of two
categories: high health hazard and low health hazard.
The Menominee Department of Tribal Utilities located at N700
Go Around Road, Keshena, WI 54135.
That person who is designated by the Tribe to perform, deliver,
or fulfill the services, goods, or contractual requirements described
in that business' annual tribal budget proposal.
An assembly of two independently operating spring-loaded
check valves with tightly closing shutoff valves on each side of the
check valves, plus properly located test cocks for the testing of
each check valve.
A device having two spring-loaded check valves separated
by an atmospheric vent changer.
A current or potential risk of a cross-connection or backflow
situation that could cause serious sickness or death to users of the
water from the system. A high hazard cross-connection situation shall
be considered to exist at:
A water supply hose bib, faucet, wall hydrant, sill cock or
other outlet which terminates with hose threads allowing a hose to
be attached.
A water supply faucet, wall hydrant, or other outlet which terminates
with a serrated nipple allowing a hose to be attached.
A water supply faucet, hydrant, or outlet serving a sink used
for building maintenance in a public building.
A chemical pot-feeder or automatic chemical feeder installed
to serve a boiler, cooling tower or chilled water system.
In the water supply piping connecting to the outlet of a fire
hydrant for any purpose other than fire suppression.
Irrigation systems.
Sprinkler systems.
A device that is permanently attached to a hose bib and which
acts as an atmospheric vacuum breaker.
A current or potential risk of a cross-connection or backflow
situation that would not cause serious sickness or death to users
of the water from the system. This risk is usually associated with
the aesthetic quality of the water.
A device used to measure the amount of water used by a customer
of the community water system.
Any person who has legal title to, or license to operate,
a business upon which a cross-connection inspection is to be made
or upon which a cross-connection is present.
A device containing one or two independently operated spring-loaded
check valves and an independently operated spring-loaded air inlet
valve located on the discharge side of the check or checks. The device
includes tightly closing shutoff valves on each side of the check
valves and properly located test cocks for the testing of the check
valve(s).
An assembly consisting of two independently operating check
valves with an automatically operating differential relief valve located
between the two check valves, tightly closing shutoff valves on each
side of the check valves plus properly located test cocks for the
testing of the check valves and the relief valve.
A.
The Department of Tribal Utilities shall operate a cross-connection
control program, to include the keeping of necessary records, which
fulfills the requirements of the Menominee Tribe's cross-connection
regulations.
B.
Owners of private businesses and directors of tribally owned businesses
which are connected to the water system shall allow the property to
be inspected for possible cross-connections and backflow conditions
and shall follow the provisions of the Department of Tribal Utilities
program, and install the required cross-connection protection.
C.
Backflow prevention devices have the following controls:
(1)
All commercial, industrial and public facilities with backflow devices
larger than a one-inch double-check valve at the entrance to the building
and within the building shall be owned by the facility where they
are installed. The check valves shall be maintained, inspected, and
tested annually at the facility's expense. All replacement devices
will be at the facility's expense.
(2)
All backflow prevention devices shall remain accessible to utility
personnel, and no person shall obstruct or tamper with any device.
(3)
Any obstruction or tampering shall be a violation of this article
and subject the violator to actual damages and civil penalties under
this article. The assignee of the property on which the device is
located shall be responsible for all damage to the device.
(4)
If the Department of Tribal Utilities determines at any time that
a serious threat to the public health exists, the water service will
be terminated immediately.
(5)
The Department of Tribal Utilities is authorized and directed to
discontinue water service after reasonable notice to any property
wherein any connection in violation of this article exists, and to
take such precautionary measures deemed necessary to eliminate any
danger of contamination of the community water system supply. Water
service to such property shall not be restored until the cross-connection(s)
has been eliminated in compliance with the provisions of this article.
A.
All commercial, industrial, and public facilities and structures
that are connected to the community water system are required to install
a backflow prevention device. All backflow prevention devices shall
be installed in accordance with the requirements of the Department
of Tribal Utilities in such locations as determined by the Department.
(1)
All devices, assemblies and mechanisms intended to protect potable
water supplies relative to cross-connection or backflow shall be of
a type that complies with the referenced standard in Table 84.11 of
§ Comm 84.11, Wis. Adm. Code.[1]
[1]
Editor's Note: See now Table 384.11 of § SPS
384.11, Wis. Adm. Code.
(3)
Backflow prevention devices shall be installed downstream of the
meter and at any other location that could potentially be a cross-connection
concern.
(4)
The Department of Tribal Utilities shall not allow any cross-connection
to remain unless it is protected by a backflow prevention device that
complies with the reference standard in Table 84.11 of § Comm
84.11, Wis. Adm. Code, and which will be regularly tested to insure
satisfactory operation.
(5)
Owners of private businesses, and directors of tribal facilities
shall be responsible for the elimination or protection of all cross-connections
on their premises.
(6)
Owners of private businesses and directors of tribal facilities shall
inform the Department of Tribal Utilities of any proposed or modified
cross-connections and also any existing cross-connections of which
the owner or the director are aware, but has not been found by the
Department of Tribal Utilities.
(7)
Owners of private businesses and directors of tribal facilities shall
correct any malfunction of the backflow prevention device that is
revealed by periodic testing.
B.
Water supply systems and the connection of each plumbing fixture,
piece of equipment, appliance or nonpotable water piping system shall
be designed, installed and maintained in such a manner to prevent
the contamination of water supplies by means of cross-connections.
C.
Any existing backflow prevention device shall be allowed by the Department
of Tribal Utilities to continue in service unless the degree of hazard
is such as to exceed the effectiveness of the present device or result
in an unreasonable risk to the public health.
D.
Any change of use or remodeling of a facility will require the backflow
prevention devices in the facility to be upgraded to meet the requirements
of the new facility.
E.
All existing facilities will be inspected within six months of the
approval of this article, and any changes required to meet the backflow
prevention code must be completed within 30 days of the notification.
F.
A survey is to be conducted for every commercial, industrial, and
public authority facility a minimum of once every two years.
G.
The owner or manager of a proposed building shall provide the Department
of Tribal Utilities notification of the intent to connect to the community
water system and provide plans and documentation that the correct
backflow prevention device is being installed properly to address
the degree of hazard.
H.
The owner or manager of a newly constructed facility and/or the contractor
responsible for the construction of the facility shall notify the
Department of the construction schedule so that the Department can
verify and record the type and installation of the backflow prevention
devices installed.
I.
Contractors shall not connect to the public water supply system hydrants
without permission of the Department of Tribal Utilities. Contractors
are required to connect to the hydrants using an approved backflow
prevention device as provided by the Department of Tribal Utilities.
A.
All commercial, industrial and public facility backflow prevention
devices shall be tested annually. Testing will be done at the expense
of the owner of the private business or director of the facility.
All test results shall be forwarded to the Department of Tribal Utilities
within 30 days.
B.
Any backflow prevention device on a commercial, industrial, or public
facility that fails during a periodic test will be repaired or replaced
at the expense of the owner of the private business, or director of
the tribal facility. Upon completion of the repair, the device will
be retested at the expense of the owner or tribal facility to insure
correct operation.
(1)
High hazard situations will not be allowed to continue unprotected
if the backflow prevention device fails the test and cannot be repaired
immediately. Parallel installation of two devices is a recommended
means of ensuring that uninterrupted water service is maintained.
(2)
In low hazard situations, the compliance must be attained within
30 days after the test date.
C.
Repeated failures in the same location will require that the testing
be done more frequently if the Department of Tribal Utilities determines
that there is an increased risk for contamination. The Department
of Tribal Utilities will determine the new test requirements. This
increased testing will be done at the expense of the owner of the
private business or director of the tribal facility.
D.
Only individuals and companies approved by the Department and/or
the Wisconsin Department of Commerce shall be qualified to perform
such testing. This certification shall accompany the results of the
testing.
E.
Records and reports. The Department of Tribal Utilities shall keep
the following records and reports on file:
(1)
Inventory of backflow prevention assemblies.
(2)
Field test results.
(3)
Initial risk assessment reports and reassessments.
(4)
Biennial survey of proper installation.
(5)
Testing dates, pass/fail.
(6)
Repair history of devices and retesting dates.
(7)
Testing contractor and certification numbers.
(8)
Correspondence.
