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Connections between potable water systems and other systems or equipment containing water or other substances of unknown or questionable quality are prohibited. No physical connection shall be permitted between potable portion of a supply and any water supply not of equal or better bacteriological and chemical quality as determined by inspection and analysis by the Agency. There shall be no arrangement or connection by which an unsafe substance may enter a supply. There shall be no direct connections between potable water lines and any lines; equipment, or any part of the sewage system, except only such connections as shall be made through a minimum fixed air gap as detailed within § 890.1040 of 77 Ill. Adm. Code 890 or the Illinois Plumbing Code.
(Prior Code, Art. 16, § 16.3(p)(F))
(A) The approved Cross-Connection Control Device Inspector shall have the right to enter at any reasonable time any property served by a connection to the public water supply or distribution system of the City of Mt. Vernon for the purpose of verifying 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; and that the Director of Public Works or his authorized agent shall have the right to enter at any reasonable time any property served by a connection to the public water supply or distribution system of the City of Mt. Vernon for the purpose of verifying information submitted by the customer regarding the required cross-connection control inspection. On demand, the owner, lessees, or occupants of any property so served shall furnish to the Director of Public Works any information which he may request regarding the piping system or systems or water use on such property. The refusal of such information, when demanded, shall, within the discretion of the Director of Public Works, be deemed evidence of the presence of improper connections as provided in this Ordinance.
(B) It shall be the responsibility of the water consumer to arrange periodic surveys of water use practices on his premises to determine whether there are actual or potential cross-connections to his water system through which contaminants or pollutants could backflow into his or the public potable water system. All cross-connection control or other plumbing inspections must be conducted in accordance with 225 ILCS 320/3.
(C) 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-siphonage.
(2) Cross-connection control devices shall be installed in accordance with the manufacturer’s instructions.
(3) Cross-connection control devices shall be inspected at the time of installation and at least annually by a person approved by the Agency as a Cross-Connection Control Device Inspector (CCCDI). The inspection of mechanical devices shall include physical testing in accordance with 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 Agency personnel in accordance with 415 ILCS 5/4(e).
(c) Each device shall have a tag attached listing the date of most recent test, name of CCCDI, and type and date of repairs.
(d) A maintenance log shall be maintained and include:
1. date of each test;
2. name and approval number of person performing the test;
3. test results;
4. repairs or servicing required;
5. repairs and date completed; and
6. servicing performed and date completed.
(Prior Code, Art. 16, § 16.3(p)(G))
(A) An approved backflow device shall be installed on all connections to the public water supply as described in the Plumbing Code, 77 Ill. Adm. Code 890 and the Agency’s regulations. 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 Director of Public Works, actual or potential hazards to the public water supply 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, unless such auxiliary supply is accepted as an additional source by the Director of Public Works and the source is approved by the Illinois Environmental Protection Agency.
(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 which are no longer under the sanitary control of the Superintendent of Public Utilities.
(3) Premises having internal cross-connections that, in the judgment of the Director of Public Works and the Cross-Connection Control Device Inspector, 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 Agency’s regulations, 35 Ill. Adm. 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 Director of Public Works 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) Carwashes.
(11) Pesticide, or herbicide, or extermination plants and trucks.
(12) Farm service and fertilizer plants and trucks.
(Prior Code, Art. 16, § 16.3(p)(H))
(A) The type of protection required under § 50.047(B)(1), (B)(2), and (B)(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 substances that could cause a severe health hazard.
(2) An approved fixed proper air gap separation or an approved reduced pressure principle backflow prevention device 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 device 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 § 50.047(B)(4) and (B)(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; or
(3) water flows by gravity from a non-potable 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 connected to 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.
(Prior Code, Art. 16, § 16.3(p)(I))
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. Installation of approved devices shall be made in accordance with 77 Illinois Administrative Code 890, and only as specified by the Research Foundation for Cross-Connection Control of the University of Southern California or applicable industry specifications. Maintenance as recommended by the manufacturer of the device shall be performed. Manufacturer’s maintenance manual shall be available onsite.
(Prior Code, Art. 16, § 16.3(p)(J))
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