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The water system shall be considered as made up of two parts: the public water supply system and the consumer's water system.
(A) Public water supply system. The public water supply 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 PWD up to the point where the consumer's water system begins. The source shall include all components of the facilities used in the production, treatment, storage and delivery of water to the public water supply distribution system. The public water supply distribution system shall include the network of conduits used to deliver water from the source to the consumer's water system.
(B) Consumer's water system. The consumer's water system shall include all parts of the facilities beyond the service connection used to convey water from the public water supply distribution system to points of use.
(Ord. 1122, passed 12-20-99)
(A) Connections between potable water systems and other systems or equipment containing water or other substances of unknown or questionable quality are prohibited except when and where approved cross-connection control devices or methods are installed, tested and maintained to insure proper operation on a continuing basis.
(B) No physical connection shall be permitted between the potable portion of a supply and other water supply not of equal or better bacteriological and chemical quality as determined by inspection and analysis by the IEPA. There shall be no arrangement or connection by which an unsafe substance may enter a supply.
(Ord. 1122, passed 12-20-99)
(A) The consumer's premises shall be open at all reasonable times to the PWD for the inspection of the presence or absence of cross-connections within the consumer's premises and testing, repair and maintenance of cross-connection control devices within the consumer's premises.
(B) On request by the PWD, the consumer shall furnish information regarding the piping system or systems or water use within the customer's premises. The consumer's premises shall be open at all reasonable times to the Superintendent of Water for the verification of information submitted by the inspection consumer to the public water supply custodian regarding cross-connection inspection results.
(C) It shall be the responsibility of the water consumer to arrange periodic surveys of water use practices on his or her premises to determine whether there are actual or potential cross-connections to his or her water system through which contaminants or pollutants could backflow into his or her or the public potable water system. All cross-connection control or other plumbing inspections must be conducted according to the ILCS Ch. 225, Act 320, § 3(1).
(D) It is the responsibility of the water consumer to prevent backflow into the public water system by ensuring that:
(1) All cross-connections are removed, or approved cross-connection control devices are installed for control of backflow and back siphoning.
(2) Cross-connection control devices shall be installed per the manufacturer's instructions.
(3) Cross-connection control devices shall be inspected at the time of installation and at least annually by the PWD. The inspection of mechanical devices shall include physical testing per the manufacturer's instructions.
(4) Testing and records.
(a) Each device shall be tested at the time of installation and at least annually or more frequently if recommended by the manufacturer.
(b) Records submitted to the community public water supply shall be available for inspection by the PWD or IEPA personnel per ILCS Ch. 415, Act 5, § 4.
(c) Each device shall have a tag attached listing the date of the most recent test, the name of the CCCDI and the type and date of repairs.
(d) A maintenance log shall be maintained and include the following: date of each test; name and approval number of person performing the test; test results; repairs or servicing required; repairs and date completed; and serving performed and dated completed.
(Ord. 1122, passed 12-20-99)
(A) An approved backflow device shall be installed on all connections to the public water supply as described in the Plumbing Code, 77 Illinois Administrative Code 890 and the IEPA's regulations 35 Illinois Administrative Code 680. In addition, 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 PWD, actual or potential hazards to the public water supply 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 supply is accepted as an additional source by the PWD and the source is approved by the IEPA.
(2) Premises on which any substance is handled which can create an actual or potential hazard to the public water supply system. This shall include premises having sources or systems containing process fluids or waters originating from the public water supply system that are no longer under the sanitary control of the PWD.
(3) Premises having internal cross-connections that, in the judgment of the PWD, 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.
(C) An approved backflow device shall be installed on all connections to the public water supply as described in the Plumbing Code, 77 Illinois Administrative Code 890 and the IEPA's regulations 35 Illinois Administrative Code 653. In addition, 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 PWD determines that no actual or potential hazard to the public water supply system exists:
(1) Hospitals, mortuaries, clinics, nursing homes.
(2) Laboratories.
(3) Piers, docks, waterfront facilities.
(4) Sewage treatment plants, sewage pumping stations or storm water pumping stations.
(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) Pesticide or herbicide or extermination plants and trucks.
(12) Farm service and fertilizer plants and trucks.
(Ord. 1122, passed 12-20-99)
(A) The type of protection required under § 51.046(B)(1) through (3) shall depend on the degree of hazard which exists as follows:
(1) An approved fixed proper air gap separation shall be installed where the public water supply system may be contaminated with substances that could cause a severe health hazard.
(2) An approved fixed proper air gap separation or an approved reduced pressure principle backflow prevention assembly shall be installed where the public water supply system may be contaminated with a substance that could cause a system or health hazard.
(3) An approved fixed proper air gap separation or an approved reduced pressure principle backflow prevention assembly or a double check valve assembly shall be installed where the public water supply system may be polluted with substances that could cause a pollution hazard not dangerous to health.
(B) The type of protection required under § 51.046(B)(4) and (5) shall be an approved fixed proper air gap separation or an approved reduced pressure principle backflow prevention device.
(C) Where a public water supply or an auxiliary water supply is used for a fire protection system, reduced pressure principle backflow preventers shall be installed on fire safety systems connected to the public water supply when:
(1) The fire safety system contains antifreeze, fire retardant or other chemicals;
(2) Water is pumped into the system from another source;
(3) Water flows by gravity from a nonpotable source or water can be pumped into the fire safety system from any other source;
(4) There is a connection whereby another source can be introduced into the fire safety system.
(D) All other fire safety systems connected to the potable water supply shall be protected by a double check valve assembly on metered service lines and a double detector check valve assembly on unmetered service lines.
(Ord. 1122, passed 12-20-99)
(A) All backflow prevention devices or methods required by these rules and regulations shall be approved by the Research Foundation for Cross-Connection Control of the University of Southern California, American Water Works Association, American Society of Sanitary Engineering or American National Standards Institute or certified by the National Sanitation Foundation to be in compliance with applicable industry specification.
(B) Installation of approved devices shall be made per the manufacturer's instructions.
(C) Maintenance as recommended by the manufacturer of the device shall be performed. Manufacturer's maintenance manual shall be available on-site.
(Ord. 1122, passed 12-20-99)
(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, maintenance and repair made per the following schedule or more often where inspections indicate a need or are specified in manufacturer's instructions.
(1) Fixed proper air gap separations shall be inspected to document that a proper vertical distance is maintained between the discharge point of the service line and the flood level rim of the receptacle at the time of installation and at least annually thereafter. Corrections to improper or bypassed air gaps shall be made within 24 hours.
(2) Double check valve assemblies shall be inspected and tested at time of installation and at least annually thereafter and required service performed within five days.
(3) Reduced pressure principle backflow prevention assemblies shall be tested at the time of installation and at least annually or more frequently if recommended by the manufacturer and required service performed within five days.
(B) Testing shall be performed by a person who has been approved by the IEPA as competent to service the device. Proof of approval shall be in writing.
(C) Each device shall have a tag attached listing the date of most recent test or visual inspection, name of tester and type and date of repairs.
(D) A maintenance log shall be maintained and include:
(1) Date of each test or visual inspection;
(2) Name and approval number of person performing the test or visual inspection;
(3) Test results;
(4) Repairs or servicing required;
(5) Repairs and date completed; and
(6) Servicing performed and date completed.
(E) 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 as required by division (A) above.
(F) Backflow prevention devices shall not be bypassed, made inoperative, removed or otherwise made ineffective without specific authorization by the PWD.
(Ord. 1122, passed 12-20-99)
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