Rule 890.1510 of the Illinois Plumbing Code, 77 Ill. Adm. Code 890.1510, requires protection of the potable water system from contamination due to backflow or back siphonage of contaminants through the water service connection. Furthermore, the Illinois Pollution Control Board Regulations, 35 Ill. Adm. Code 601, et. seq. requires an active program of cross connection control which will prevent the contamination of all potable water supply systems. In order to accomplish these goals it is necessary to introduce restrictions for cross-connection control.
(A) Policy. The consumer shall be responsible for protection of the public water supply system from the contamination due to backflow or back-siphonage of contaminants through the consumer's water service connection. If, required by the village, the consumer shall install an approved backflow prevention device at each service connection to his premises. The consumer shall immediately install such approved device or devices at his own expense; failure, refusal or inability on the part of the consumer to install such device or devices immediately shall constitute grounds for discontinuing water service to the premises until such device or devices have been installed. The consumer shall retain records of installation, maintenance, testing and repair as required in division (D) of this section for a period of at least five years.
(B) Water system.
(1) The water system shall be considered as made up of two parts: the public water supply system and the consumer's water system.
(2) 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 village up to the point where the consumer's water system begins.
(3) The source shall include all components of the facilities utilized in the production, treatment, storage and delivery of water to the public water supply distribution system.
(4) The public water supply distribution system shall include the network of conduits used to deliver water from the source of the consumer's water system.
(5) 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.
(C) Cross-connection prohibited. 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.
(1) No physical connection shall be permitted between the potable portion of a supply and any other water supply not of equal or better bacteriological and chemical quality as determined by inspection and analysis by the Agency.
(2) There shall be no arrangement or connection by which an unsafe substance may enter a supply.
(D) Survey and investigations.
(1) The consumer's premises shall be open at all reasonable times to the approved cross- connection control device inspector 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.
(2) On request by the village's authorized representatives, 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 village for the verification of information submitted by the water consumer to the public water supply custodian regarding cross-connection inspection results.
(3) 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-connections control or other plumbing inspections must be conducted in accordance with ILCS Ch. 225, Act 320, § 3(1).
(4) It is the responsibility of the water consumer to prevent backflow into the public water system by ensuring that:
(a) All cross-connections are removed; or approved cross-connection control devices are installed for control of backflow and back-siphonage.
(b) Cross-connection control devices shall be installed in accordance with the manufacturer's instructions.
(c) Cross-connections 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.
(d) Testing and records.
1. Each device shall be tested at the time of installation and at least annually or more frequently if recommended by the manufacturer.
2. Records submitted to the community public water supply shall be available for inspection by Agency personnel in accordance with ILCS Ch. 415, Act 5, § 4(e).
3. Each device shall have a tag attached listing the date of most recent test, name of CCCDI, and type and date of repairs.
4. A maintenance log shall be maintained and include: 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 date completed.
(E) Where protection is required.
(1) 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 35 Ill. Adm. Code 680. In addition, an approved backflow prevention device shall be installed on each service line to a consumer's water system serving the premises, where in the judgement of the village, actual or potential hazards to the public water supply system exist.
(2) 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:
(a) Premises having an auxiliary water supply, unless such auxiliary supply is accepted as an additional source by the village and the source is approved by the Illinois Environmental Protection Agency.
(b) 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 village.
(c) Premises having internal cross-connections that, in the judgement of the village 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.
(d) Premises where, because of security requirements or other prohibitions or restrictions, it is impossible or impractical to make a complete cross-connection survey.
(e) Premises have a repeated history of cross-connections being established or reestablished.
(3) 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 35 Ill. Adm. Code 653. In addition, an approved backflow prevention device shall be installed on each service line to all consumer's water system serving, but not necessarily limited to, the following types of facilities unless the village determines that no actual or potential hazard to the public water supply system exist:
(a) Hospitals, mortuaries, clinics, nursing homes.
(b) Laboratories.
(c) Piers, docks, waterfront facilities.
(d) Sewage treatment plants, sewage pumping stations or storm water pumping stations.
(e) Food or beverage processing plants.
(f) Chemical plants.
(g) Metal plating industries.
(h) Petroleum processing or storage plants.
(i) Radioactive material processing plants and or nuclear reactors.
(j) Car washes.
(k) Pesticide, or herbicide or extermination plants and truck.
(l) Farm service and fertilizer plants and trucks.
(F) Type of protection required.
(1) The type of protection required under division (E) of this section shall depend on the degree of hazard which exists as follows:
(a) An approved fixed proper air gap separation shall be installed where the public water system may be contaminated with substances that could cause a severe health hazard.
(b) 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.
(c) 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.
(2) The type of protection required under division (E) of this section shall be an approved fixed proper air gap separation or an approved reduced pressure principle backflow prevention device.
(3) Where a public water supply or an auxiliary water supply is used for a fire protection system, reduced pressure principle backflow presenters shall be installed on fire safety systems connected to the public water supply when:
(a) The fire safety system contains antifreeze, fire retardant or other chemicals;
(b) Water is pumped into the system from another source; or
(c) Water flows by gravity from a nonpotable source; or water can be pumped into the fire safety system from any other source;
(d) There is a connection whereby another source can be connected to the sprinkler system.
(G) Backflow prevention devices.
(1) 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 specifications.
(2) Installation of approved devices shall be made in accordance with 35 Ill. Adm. Code 653.802, 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 on- site.
(H) Inspection and maintenance.
(1) It shall be the duty of the consumer at any premises on which backflow prevention devices required by the regulations are installed to have inspection, tests, maintenance and repair made in accordance with the following schedule or more often where inspections indicate a need or are specified in manufacturer's instructions.
(a) Fixed proper air gap separation 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 a least annually thereafter.
(b) Double check valve assemblies shall be inspected and tested at time of installation and at least annually thereafter, and required service performed within 15 days.
(c) Reduced pressure principle backflow prevention devices 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.
(2) Testing shall be performed by a person who has been approved by the Agency as competent to serve the device. Proof of approval shall be in writing.
(3) 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.
(4) A maintenance log shall be maintained and include:
(a) Date of each test or visual inspection;
(b) Name and approval number of person performing the test or visual inspection;
(c) Test results;
(d) Repairs or servicing required;
(e) Repairs and date completed; and
(f) Servicing performed and date completed.
(5) 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.
(6) Backflow prevention devices shall not be bypassed, made inoperative, removed or otherwise made ineffective without specific authorization by the village.
(I) Booster pumps.
(1) Where a booster pump has been installed on the service line to or within any premises, such pump shall be equipped with a low pressure cut-off device designed to shut-off the booster pump when the pressure in the service line of the suction side of the pump drops to 20 psi or less.
(2) It shall be the duty of the water consumer to maintain the low pressure cut-off device in proper working order and to certify to the village at least once a year, that the device is operable.
(J) Violations.
(1) The village shall deny or discontinue, after reasonable notice to the occupants thereof, the water service to any premises wherein any backflow prevention device required by these regulations is not installed, tested, maintained and repaired in a manner acceptable to the village, 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, or if a low pressure cut-off required by these regulations is not installed and maintained in working order.
(2) Water service to such premises shall not be restored until the consumer has corrected or eliminated such conditions or defects in conformance with these regulations and to the satisfaction of the Superintendent of Water, and the required reconnection fee is paid.
(Ord. 573, passed 10-25-89)