[Added by Ord. No. 06-01-87]
All users of the municipal water supply shall be required to provide an effective means for protecting the public water supply system from contamination due to backflow of contaminants through the customer water service connection into the public water system.
A. 
If, in accordance with the Illinois Plumbing Code or in the judgment of the City of Mendota, an approved backflow prevention device is necessary for the safety of the public water supply system, the Superintendent of Water and Wastewater will give notice to the water customer to install such an approved device immediately. The water customer shall, at his own expense, install such an approved device at a location and in a manner in accordance with the Illinois Plumbing Code and all applicable local regulations, and shall have inspections and tests made of such approved devices as required by the Illinois Plumbing Code and local regulations.
B. 
Only cross-connection control devices which are approved by the Foundation for Cross-Connection Control and Hydraulic Research 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 shall be used. Installation of approved devices shall be made as specified by the manufacturer. Maintenance as recommended by the manufacturer of the device shall be performed. The manufacturer's maintenance manual shall be available on-site.[1]
[1]
Editor's Note: Amended at time of adoption of Code (see Ch. 1, General Provisions, Art. I).
No person, firm or corporation shall establish or permit to be established or maintain or permit to be maintained any connection whereby a private, auxiliary or emergency water supply other than the regular public water supply of the City of Mendota enters the supply or distribution system of said municipality, unless such private, auxiliary or emergency water supply and the method of connection and use of such supply shall have been approved by the Superintendent and the Illinois Environmental Protection Agency.
It shall be the duty of the Superintendent to cause surveys and investigations to be made of industrial and other properties served by the public water supply to determine whether actual or potential hazards to the public water supply may exist. Such surveys and investigations shall be made a matter of public record and shall be repeated at least every two years, or as often as the Superintendent shall deem necessary. Records of such surveys shall be maintained and available for review for a period of at least five years.
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 Mendota for the purposes of verifying the presence or absence of cross-connections, and the Superintendent 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 Mendota 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 Superintendent 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 Superintendent, be deemed evidence of the presence of improper connections as provided in this article.
The Superintendent of the City of Mendota is hereby authorized and directed to discontinue, after 10 days' written notice to the occupant thereof, the water service to any property wherein any connection in violation of the provisions of this article is known to exist, and to take such other precautionary measures as he may deem necessary to eliminate any danger of contamination of the public water supply distribution mains. Water service to such property shall not be restored until such conditions have been eliminated or corrected in compliance with the provisions of this article, and until a reconnection fee as set from time to time by the City Council is paid to the City of Mendota. Immediate disconnection with verbal notice can be effected when the Superintendent is assured that imminent danger of harmful contamination of the public water supply system exists. Such action shall be followed by written notification of the cause of disconnection.
[1]
Editor's Note: Amended at time of adoption of Code (see Ch. 1, General Provisions, Art. I).
The consumer responsible for backsiphoned material or contamination through backflow, if contamination of the potable water supply occurs through an illegal cross-connection or an improperly installed, maintained or repaired device, or a device which has been bypassed, must bear the cost of clean-up of the potable water supply system.
The Mayor and Council of the City of Mendota shall adopt such regulations as they shall deem necessary to promote the elimination or control of existing cross-connections in furtherance of this article.
A. 
Purpose. The purposes of these rules and regulations are:
(1) 
To protect the public water supply system from contamination or pollution by isolating within the customer's water system contaminants or pollutants which could backflow through the service connection into the public water supply system.
(2) 
To promote the elimination or control of existing cross-connections, actual or potential, between the public or consumer's potable water system and nonpotable water systems, plumbing fixtures and sources or systems containing substances of unknown or questionable safety.
(3) 
To provide for the maintenance of a continuing program of cross-connection control which will prevent the contamination of pollution of the public and consumer's potable water systems.
B. 
Applicability. These rules and regulations shall apply to all premises served by the public potable water supply system of the City of Mendota.
C. 
Policy. The Mayor and Council shall be responsible for protection of the public water supply system from contamination due to backflow or backsiphonage of contaminants through the customer's water service connection. If, in the judgment of the Superintendent or his authorized representative, an approved backflow prevention device is necessary for the safety of the public water supply system, the Superintendent shall give notice to the consumer to install such approved backflow prevention device at each service connection to the 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 repairs as required in § 318-34D(4) below for a period of at least five years.
The following definitions shall apply in the interpretation and enforcement of these regulations:
AGENCY
The Illinois Environmental Protection Agency.
APPROVED
Backflow prevention devices or methods approved by the Foundation for Cross-Connection Control and Hydraulic Research of the University of Southern California, American Water Works Association, American National Standards Institute or certified by the National Sanitation Foundation.[1]
AUXILIARY WATER SYSTEM
Any water source or system on or available to the premises other than the public water supply system and includes the water supplied by the system. These auxiliary waters may include water from another purveyor's public water supply system; or water from a source such as wells, lakes, or streams, or process fluids; or used water. These waters may be polluted or contaminated or objectionable or constitute a water source or system over which the water purveyor does not have control.
BACKFLOW
The flow of water or other liquids, mixtures, or substances into the distribution pipes of a potable water system from any source other than the intended source of the potable water supply.
BACKFLOW PREVENTION DEVICE
Any device, method, or type of construction intended to prevent backflow into a potable water system. All devices used for backflow prevention in Illinois must meet the standards of the Illinois Plumbing Code (35 Ill. Adm. Code 651 et seq.) and the Illinois Environmental Protection Agency (77 Ill. Adm. Code 890 et seq.).
CONSUMER or CUSTOMER
The owner, official custodian or person in control of any premises supplied by or in any manner connected to a public water system.
CONSUMER'S WATER SYSTEM
Any water system located on the customer's premises. A building plumbing system is considered to be a customer's water system.
CONTAMINATION
An impairment of the quality of the water by entrance of any substance to a degree which could create a health hazard.
CROSS-CONNECTION
Any physical connection or arrangement between two otherwise separate piping systems, one of which contains potable water and the other a substance of unknown or questionable safety or quality, whereby there may be a flow from one system into the other.
A. 
DIRECT CROSS-CONNECTIONA cross-connection formed when a water system is physically joined to a source of unknown or unsafe substance.
B. 
INDIRECT CROSS-CONNECTIONA cross-connection through which an unknown substance can be forced, drawn by vacuum or otherwise introduced into a safe potable water system.
DOUBLE CHECK VALVE ASSEMBLY
An assembly composed of single, independently acting check valves approved under ASSE Standard 1015. A double check valve assembly must include tight shutoff valves located at each end of the assembly and suitable connections for testing the watertightness of each check valve.
FIXED PROPER AIR GAP
The unobstructed vertical distance through the free atmosphere between the water discharge point and the flood level rim of the receptacle.
HEALTH HAZARD
Any condition, device or practice in a water system or its operation resulting from a real or potential danger to the health and well-being of consumers. The word "severe" as used to qualify "health hazard" means a hazard to the health of the user that could be expected to result in death or significant reduction in the quality of life.
INSPECTION
A plumbing inspection to carefully and critically examine all materials, fixtures, piping and appurtenances, appliances and installations of a plumbing system for compliance with requirements of the Illinois Plumbing Code, 77 Ill. Adm. Code 890.
NONPOTABLE WATER
Water not safe for drinking, personal, or culinary use as defined in 77 Ill. Adm. Code 2890.120.[2]
PLUMBING
The actual installation, repair, maintenance, alteration or extension of a plumbing system by any person. Plumbing includes all piping, fixtures, appurtenances and appliances for a supply of water for all purposes, including without limitation lawn sprinkler systems, from the source of a private water supply on the premises or from the main in the street, alley or at the curb to, within and about any building or buildings where a person or persons live, work or assemble. Plumbing includes all piping, from discharge or pumping units to and including pressure tanks in water supply systems. Plumbing includes all piping, fixtures, appurtenances, and appliances for a building drain and a sanitary drainage and related ventilation system of any building or buildings where a person or persons live, work or assemble from the point of connection of such building drain to the building sewer or private sewage disposal system five feet beyond the foundation walls.
POLLUTION
The presence of any foreign substance (organic, inorganic, radiological, or biological) in water that tends to degrade its quality so as to constitute a hazard or impair the usefulness of the water.
POTABLE WATER
Water that meets drinking water quality standards specified in the Pollution Control Board's rules titled "Primary Drinking Water Standards" and is suitable for human consumption or culinary use.[3]
POTENTIAL CROSS-CONNECTION
A fixture or appurtenance with threaded hose connection, tapered spout, or other connection which would facilitate extension of the water supply line beyond its legal termination point.
PROCESS FLUID(S)
Any fluid or solution which may be chemically, biologically or otherwise contaminated or polluted in a form or concentration such as would constitute a health, pollutional, or system hazard if introduced into the public or consumer's potable water system. This includes but is not limited to:
A. 
Polluted or contaminated waters;
B. 
Process waters;
C. 
Used waters originating from the public water supply system which may have deteriorated in sanitary quality;
D. 
Cooling waters;
E. 
Questionable or contaminated natural waters taken from wells, lakes, streams, or irrigation systems;
F. 
Chemicals in solution or suspension; or
G. 
Oils, gases, acids, alkalis and other liquid and gaseous fluids used in industrial or other processes, or for fire-fighting purposes.
PUBLIC WATER SUPPLY
All mains, pipes, and structures through which water is obtained and distributed to the public, including wells and well structures, intakes and cribs, pumping stations, treatment plants, reservoirs, storage tanks and appurtenances, collectively or severally, actually used or intended for use for the purpose of furnishing water for drinking or general domestic use and which serve at least 15 service connections or which regularly serve at least 25 persons at least 60 days per year. A public water supply is either a "community water supply" or a "non-community water supply."
REDUCED PRESSURE PRINCIPLE ZONE BACKFLOW PREVENTION DEVICE
A device containing a minimum of two independently acting check valves together with an automatically operated pressure differential relief valve located between the two check valves and approved under ASSE Standard 1013. During normal flow and at the cessation of normal flow, the pressure between these two checks shall be less than the supply pressure. In case of leakage of either check valve, the differential relief valve, by discharging to the atmosphere, shall operate to maintain the pressure between the check valves at less than the supply pressure. The unit must include tightly closing shutoff valves located at each end of the device, and such device shall be fitted with properly located test cocks.
SERVICE CONNECTION
The opening, including all fittings and appurtenances, at the water main through which water is supplied to the user.
SURVEY
The collection of information pertaining to a customer's piping system regarding the location of all connections to the public water supply system and must include the location, type and most recent inspection and testing date of all cross-connection control devices and methods located within that customer's piping system. The survey must be in written form, and should not be an actual plumbing inspection.
SYSTEM HAZARD
A condition through which an aesthetically objectionable or degrading material not dangerous to health may enter the public water supply system or a consumer's potable water system.
USED WATER
Any water supplied by a public water supply system to a consumer's water system after it has passed through the service connection and is no longer under the control of the water supply official custodian.
WATER PURVEYOR
The owner or official custodian of a public water system.
[1]
Editor's Note: Amended at time of adoption of Code (see Ch. 1, General Provisions, Art. I).
[2]
Editor's Note: Amended at time of adoption of Code (see Ch. 1, General Provisions, Art. I).
[3]
Editor's Note: Amended at time of adoption of Code (see Ch. 1, General Provisions, Art. I).
A. 
The water system shall be considered as made up of two parts: the public water supply system and the consumer's water system.
B. 
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 Superintendent up to the point where the consumer's water system begins.
C. 
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.
D. 
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.
E. 
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.
A. 
Connections between potable water systems and other systems' 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. 
Physical connections; unsafe substances.
(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.
A. 
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.
B. 
On request by the Superintendent or his authorized representative, the consumer shall furnish information regarding the piping system or systems or water use within the consumer's premises. The consumer's premises shall be open at all reasonable times to the Superintendent for the verification of information submitted by the 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 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, Subsection (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 backsiphonage.
(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 inspections by Agency personnel in accordance with 415 ILCS 5/4.
(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.
A. 
An approved backflow prevention device or an approved reduced pressure principle backflow prevention assembly shall be installed on each water service line to a consumer's water system when, in the judgment of the Director, actual or potential hazards to the public water supply system may exist.
B. 
An approved backflow prevention device or an approved reduced pressure principle backflow prevention assembly shall be installed on each water service line to a consumer's water system where any of the following conditions exist:
(1) 
Any substances exist which can create an actual or potential hazard to the public water supply system.
(2) 
Intricate plumbing arrangements exist which make it impractical to determine whether cross-connections exist.
(3) 
Internal cross-connections exist which, in the judgment of the Director, are not correctable.
(4) 
Because of security requirements or other prohibitions or restrictions, it is impossible or impractical to make a complete cross-connection survey.
(5) 
There is a history of cross-connections being established or reestablished.
(6) 
An auxiliary water system is accepted as an additional source, as approved by the agency and the local authority.
C. 
An approved backflow prevention device or an approved reduced pressure zone principle backflow prevention assembly shall be installed on each water line to a consumer's water system serving the following types of facilities unless the Director determines that no actual or potential hazard to the public water supply system exists:
(1) 
Hospitals, clinics, nursing homes.
(2) 
Dental offices.
(3) 
Beauty salons; nail salons.
(4) 
Mortuaries.
(5) 
Laboratories.
(6) 
Sewage treatment plants; sewage pumping stations; or stormwater pumping stations.
(7) 
Food or beverage processing plants.
(8) 
Chemical plants.
(9) 
Metal plating industries.
(10) 
Petroleum processing or storage plants.
(11) 
Radioactive material processing plants or nuclear reactors.
(12) 
Car washes.
(13) 
Properties with underground irrigation systems.
(14) 
Veterinary hospitals or clinics.
(15) 
Hotels; motels.
(16) 
Laundromats; dry cleaners.
(17) 
Schools.
(18) 
Multiple-story buildings, including, but not limited to, buildings containing three dwelling units or more.
(19) 
Properties with fire suppression systems.
(20) 
Such other facilities as the Director deems may present an actual or potential hazard to the public water supply system.
D. 
A reduced pressure zone principle backflow prevention assembly shall be installed between any fire sprinkler system and the public water supply system when:
(1) 
The sprinkler system contains antifreeze and/or chemical additives; or
(2) 
Water may be pumped into the system from another source that can be connected to the sprinkler system.[2]
[2]
Editor's Note: Original Section 16 of the 1998 Code, Type of protection required, which immediately followed this section, was repealed at time of adoption of Code (see Ch. 1, General Provisions, Art. I).
[1]
Editor's Note: Amended at time of adoption of Code (see Ch. 1, General Provisions, Art. I).
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 specifications.
B. 
Installation of approved devices shall be made in accordance with the Foundation for Cross-Connection Control and Hydraulic Research of the University of Southern California or applicable industry specifications. Maintenance as recommended by the manufacturer of the device shall be performed. The manufacturer's maintenance manual shall be available on-site.[1]
[1]
Editor's Note: Amended at time of adoption of Code (see Ch. 1, General Provisions, Art. I).
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 inspections, tests, maintenance and repairs made in accordance with 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 at the time of installation and at least annually thereafter.
(2) 
Double check valve assemblies shall be inspected and tested at the time of installation and at least annually thereafter, and required service shall be performed within 15 days.
(3) 
Reduced pressure principle zone 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 shall be performed within five days.
B. 
Testing shall be performed by a person who has been approved by the Agency 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 the 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 and number of persons 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 without delay at the expense of the consumer.
F. 
Backflow prevention devices shall not be bypassed, made inoperative, removed or otherwise made ineffective without specific authorization by the Superintendent.
A. 
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 on the suction side of the pump drops to 20 psi or less.
B. 
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 Superintendent, at least once a year, that the device is operable.
A. 
The Superintendent 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 Superintendent, 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.
B. 
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 and the required reconnection fee is paid.