Chapter 13.05
CROSS-CONNECTION CONTROL

Sections:

13.05.010    Definitions.

13.05.020    Purpose.

13.05.030    Cross-connections regulated.

13.05.040    Application and responsibilities.

13.05.050    Backflow prevention assembly requirements.

13.05.060    Irrigation systems.

13.05.070    Fire systems.

13.05.080    Wholesale customers.

13.05.090    Mobile units.

13.05.100    Right-of-way encroachment.

13.05.110    Plumbing code.

13.05.120    Access to premises.

13.05.130    Inspections/surveys.

13.05.140    Testing and repairs.

13.05.150    Responsibilities of backflow prevention assembly testers.

13.05.160    Maintenance of assemblies.

13.05.170    Installation requirements and specifications.

13.05.180    Thermal expansion.

13.05.190    Pressure loss.

13.05.200    Parallel installation.

13.05.210    New construction.

13.05.220    Residential service connections.

13.05.230    Rental properties.

13.05.240    Retrofitting.

13.05.250    Costs of compliance.

13.05.260    Termination of service.

13.05.270    Emergency suspension of service.

13.05.280    Nonemergency suspension of service.

13.05.290    Penalties.

13.05.300    Provisions as to availability of materials.

13.05.010 Definitions.

Except where specifically designated herein, all words used in this chapter shall carry their customary meanings. Words used in the present tense include the future and plural words include the singular. The word “shall” is always mandatory, and the word “may” denotes a use of discretion in making a decision. Any definition not found in this section will take its meaning from Chapter 246-290 WAC, or as amended.

A. “Air gap” means a physical separation between the free-flowing end of a potable water supply pipeline and the overflow rim of an open or nonpressure-receiving vessel. To be an “approved air gap,” the separation must be at least twice the diameter of the inlet piping (supply pipe) measured vertically, and never be less than one inch.

B. “Approved backflow prevention assembly” or “backflow assembly” or “assembly” means an assembly to counteract back pressures or prevent backsiphonage. This assembly must appear on the list of approved assemblies issued by the Washington State Department of Health.

C. “Auxiliary supply” means any water source or system other than the city of Chelan water.

D. “Backflow” means the flow of water or other liquids, gases or solids from any source back into the distribution system; the flow of water in the opposite direction of its intended flow.

E. “Backflow assembly tester” means a person holding a valid BAT certificate issued in accordance with the WAC.

F. “Backpressure” means a pressure caused by a pump, elevated tank or piping, boiler, or other means that are greater than the pressure provided by the public water system and which may cause backflow.

G. “Backsiphonage” shall mean backflow due to a reduction in system pressure in the purveyor’s distribution system and/or consumer’s water system.

H. “Building inspector” shall mean the building inspector for the city of Chelan. It shall also include the building inspector for the Chelan County building department.

I. “Chelan” shall mean the city of Chelan.

J. “City” or “the city” shall mean the city of Chelan, Washington.

K. “Closed system” means any water system or portion of a water system in which water is transferred to a higher pressure zone closed to atmosphere.

L. “Contamination” means the entry into or presence in a public water supply system of any substance which may be deleterious to health and/or quality of the water.

M. “Cross-connection” means any physical arrangement where a public water system is connected, directly or indirectly (actual or potential), with any other nondrinkable water system or auxiliary system, sewer, drain conduit, swimming pool, storage reservoir, plumbing fixture, swamp coolers, or any other device which contains, or may contain, contaminated water, sewage, or other liquid of unknown or unsafe quality which may be capable of imparting contamination to the public water system as a result of backflow. Bypass arrangements, jumper connections, removable sections, swivel or changeover devices, or other temporary or permanent devices through which, or because of which, backflow may occur are considered to be cross-connections.

N. “Cross-connection specialist” or “CCS” shall mean a person holding a valid CCS certificate issued in accordance with the WAC.

O. “Cross-connection control manager” means a person or his/her designee appointed to manage the cross-connection control program for the city.

P. “Degree of hazard” means the low or high hazard classification that shall be attached to all actual or potential cross-connections.

Q. “Director” means the director of public works of the city of Chelan, or his/her designee.

R. “DOH” means Washington Department of Health.

S. “Double check valve backflow prevention assembly” or “double check assembly” or “double check” or “DCVA” or “DC” means an assembly which consists of two independently operating check valves which are spring-loaded or weighted. The assembly comes complete with a shut-off valve on each side of the checks, as well as test cocks to test the checks for tightness.

T. “Double check detector assembly” or “DCDA” means an assembly which consists of two independently operating check valves which are spring-loaded or weighted. The assembly comes complete with a shut-off valve on each side of the checks, as well as test cocks to test the checks for tightness. It shall also be provided with a factory bypass feature of a minimum of an approved double check assembly.

U. “Health hazard” means an actual or potential threat of contamination of a physical, toxic or biological nature that would be a danger to health.

V. “High hazard” means the classification assigned to an actual or potential cross-connection that potentially could allow a substance that may cause illness or death to backflow into the potable water supply.

W. “In-premises protection” means a method of protecting the health of consumers served by the customer’s plumbing system (i.e., located within the property lines of the customer’s premises) by the installation of an approved air gap or backflow prevention assembly at the point of hazard.

X. “Inspector” or “surveyor” shall mean a person holding a valid CCS certificate issued in accordance with the WAC, who meets the stipulations in this chapter and the most recent edition of the city’s SOP manual.

Y. “Local administrative authority” means the local official, board, department or agency authorized to administer and enforce the provisions of the Uniform Plumbing Code and all other plumbing codes recognized by the state of Washington.

Z. “Low hazard” means the classification assigned to an actual or potential cross-connection that potentially could allow a substance that may be objectionable, but not hazardous to one’s health, to backflow into the potable water supply.

AA. “Mobile unit” shall mean units connecting to the water system through a hydrant, hosebib, or other appurtenance of a permanent nature that is part of the city water system or a permanent water service to a premises. Examples can include but are not limited to the following: water trucks, pesticide applicator vehicles, chemical mixing units or tanks, waste or septage haulers’ trucks or units, sewer cleaning equipment, carpet or steam cleaning equipment other than homeowner use, rock quarry or asphalt/concrete batch plants, or any other mobile equipment or vessel. Uses that are excluded from this definition are recreational vehicles at assigned sites or parked in accordance with other city ordinances pertaining to recreational vehicles, and homeowner devices that are used by the property owner in accordance with other provisions of this, or other, city of Chelan ordinances pertaining to provision of water service to a premises.

BB. “Person” means a natural person (individual), corporation, company, association, partnership, firm, limited liability company, joint venture company or association, and other such entity.

CC. “Plumbing hazard” means an internal or plumbing-type cross-connection in a consumer’s potable water system that may be either a pollutional or a contamination-type hazard. This includes, but is not limited to, cross-connections to toilets, sinks, lavatories, wash trays, domestic washing machines and lawn sprinkling systems. Plumbing-type cross-connections can be located in all types of structures including but not limited to homes, apartment houses, hotels and commercial or industrial establishments.

DD. “Point-of-use isolation” shall mean the same as “in-premises protection”.

EE. “Pollutional hazard” means an actual or potential threat to the physical properties of the water system or the potability of the public or the consumer’s potable water system but which would not constitute a health or system hazard, as defined. The maximum degree of intensity of pollution to which the potable water system could be degraded under this definition would cause a nuisance or be aesthetically objectionable or could cause minor damage to the system or its appurtenances.

FF. “Potable water supply” means any system of water supply intended or used for human consumption or other domestic use.

GG. “Premises” means any piece of property to which water is provided including, but not limited to, all improvements, mobile structures and structures located on it.

HH. “Premises isolation” means a method of protecting a public water system by installation of an approved air gap or approved backflow prevention assembly at the point of service (end of purveyor’s service pipe) to separate the customer’s plumbing system from the purveyor’s distribution system.

II. “Reduced pressure principle backflow prevention assembly” or “reduced pressure principle assembly” or “RP assembly” shall mean an assembly containing two independently acting approved check valves together with a hydraulically operated, mechanically independent pressure differential relief valve located between the check valves and at the same time below the first check valve. The assembly shall include properly located test cocks and tightly closing shut-off valves at each end of the assembly.

JJ. “SOP” means the most recent edition of the city of Chelan’s standard operating procedure manual.

KK. “Superintendent” shall mean the operations superintendent in charge of cross-connection control for the city of Chelan or their designee.

LL. “System hazard” means an actual or potential threat of severe danger to the physical properties of the public or consumer’s potable water system or of a pollution or contamination which would have a detrimental effect on the quality of the potable water in the system.

MM. “Thermal expansion” means the pressure created in piping, when water is heated.

NN. “Used water” means any water supplied by the city to a customer’s property after it has passed through the service connection and is no longer under the control of the city.

OO. “WAC” means the most recent edition of the Washington Administrative Code. (Ord. 1221 § 2 (part), 2001).

13.05.020 Purpose.

The purpose of this chapter is to protect the public water system from contamination or pollution due to any existing or potential cross-connections as defined in WAC 246-290-010, or as amended in this chapter. The purveyor shall ensure that cross-connections between the distribution system and a customer’s premises are eliminated or protected against by the installation of an approved air gap or approved backflow prevention assembly. (Ord. 1221 § 2 (part), 2001).

13.05.030 Cross-connections regulated.

A. No cross-connections shall be created, installed, used or maintained within the territory served by the city, except in accordance with this chapter.

B. The CCC manager for the city shall carry out or cause inspections to be carried out to determine if any actual or potential cross-connection exists. If found necessary, an assembly commensurate with the degree of hazard will be required to be installed at the service connection.

C. The owner, occupant or person in control of the property is responsible for all cross-connection control within the premises.

D. The use of any type of chemical spray attachment connected to the premises plumbing, including but not limited to garden hose fertilizers and pesticide applicators, is prohibited except in accordance with this chapter.

E. The use of any type of radiator flush kits or any other type of attachment connected to the premises plumbing is prohibited except in accordance with this chapter. (Ord. 1221 § 2 (part), 2001).

13.05.040 Application and responsibilities.

This chapter applies throughout the city of Chelan and to every premises and property served by the city of Chelan water system. It applies to any premises, public or private, regardless of date of connection to the city water. Every owner, occupant and/or person in control of any concerned premises is responsible for compliance with the terms and provisions contained herein. (Ord. 1221 § 2 (part), 2001).

13.05.050 Backflow prevention assembly requirements.

A CCS employed by or under contract with the city shall determine the type of backflow assembly to be installed within the area served by the city. All assemblies shall be installed at the service connection unless it is determined by the CCS to install the assembly at the point of use. An assembly will be required in each of the following circumstances, but the CCS is in no way limited to the following circumstances:

A. The nature and extent of any activity on the premises, or the materials used in connection with any activity on the premises, or materials stored on the premises, could contaminate or pollute the potable water supply;

B. Premises having any one or more cross-connections or potential cross-connections as that term is defined in this chapter and the WAC;

C. When an appropriate cross-connection survey report form has not been filed with the CCC manager;

D. Internal cross-connections are present that are not correctable;

E. Intricate plumbing arrangements or plumbing potentially subject to frequent changes are present that make it impractical to ascertain whether or not cross-connections exist;

F. There is a repeated history of cross-connections being established or re-established;

G. All lawn irrigation systems;

H. There is unduly restricted entry so that inspections for cross-connections cannot be made with sufficient frequency to assure that cross-connections do not exist;

I. Materials are being used such that, if backflow should occur, a health hazard could result;

J. Installation of an approved backflow prevention assembly is deemed to be necessary to accomplish the purpose of these regulations in the judgement of the city;

K. Any premises having an auxiliary water supply;

L. When a building is constructed on commercial premises, and the end use of such building is not determined or could change, a reduced pressure principle backflow prevention assembly will be installed at the service connection;

M. There exists any used or reclaimed water return system;

N. In the event a point-of-use assembly has not been tested or repaired as required by WAC 246-290-490, or as amended, and this chapter, a premises isolation assembly will be required;

O. If it is determined that additions or rearrangements have been made to the plumbing system without obtaining proper permits as required by the city code enforcement division, premises isolation will be required;

P. All high health cross-connection hazard premises which are defined in Table 9 of WAC 246-290-490, or as amended, are required to have premises isolation by installing an approved air gap or reduced pressure principle assembly in accordance with this chapter;

Q. All multihousing/apartments served by a single meter will require an RP assembly unless they comply with Section 13.05.170 of this chapter. (Ord. 1221 § 2 (part), 2001).

13.05.060 Irrigation systems.

The type of assembly to be installed on an irrigation system will be commensurate with the degree of hazard but in no case will it be less than a DCVA. The location of the assembly will be determined by the city’s CCS. (Ord. 1221 § 2 (part), 2001).

13.05.070 Fire systems.

A. An approved double check detector backflow prevention assembly (“DCDA”) shall be the minimum protection on all new fire sprinkler systems using piping material that is not approved for potable water use, and/or that does not provide for periodic flow-through during each twenty-four-hour period. A reduced pressure principle detector backflow prevention assembly (“RPDA”) must be installed, if any solution other than the potable water can be introduced into the sprinkler system. Retrofitting on fire sprinkler systems will be required in each of the following circumstances:

1. Where improper maintenance has occurred;

2. On all high hazard systems;

3. Wherever an inspector deems necessary; and

4. Wherever required by the WAC.

B. All fire-line systems which are on a designated lateral shall install the assembly on the lateral. The assembly must be installed in accordance with this chapter. (Ord. 1221 § 2 (part), 2001).

13.05.080 Wholesale customers.

Any customer that has a wholesale contract for water services with the city must have an active, ongoing cross-connection program. The cross-connection program must be in compliance with WAC requirements pertaining to public water systems. The city reserves the right at all times to require a reduced pressure principle assembly at the interconnect. Wholesale customers shall provide annually to the city a copy of their cross-connection control summary report which was submitted to the DOH. (Ord. 1221 § 2 (part), 2001).

13.05.090 Mobile units.

A. Any mobile unit or apparatus, as defined in Section 13.05.010 of this chapter, which uses the water from any premises within the city’s water system, shall first obtain a permit from the city and be inspected to assure appropriate backflow prevention is installed in accordance with the most recent edition of the SOP manual.

B. The city reserves the right to revoke the business license of the owner of the apparatus or mobile unit if the owner fails to comply with above procedures. (Ord. 1221 § 2 (part), 2001).

13.05.100 Right-of-way encroachment.

A. No person shall install or maintain a backflow prevention assembly upon or within any city right-of-way except as provided in this section.

B. The city reserves the right to have an assembly installed in the right-of-way.

C. A backflow prevention assembly required by the city may be installed upon or within any city right-of-way only if the owner proves to the city that there is no other feasible location for installing the assembly, and installing it in the right-of-way will not interfere with traffic or utilities. The city retains the right to approve the location, height, depth, enclosure, and other requisites of the assembly prior to its installation.

D. All permits required by the city code to perform work in the right-of-way shall be obtained.

E. The assembly shall be installed below or flush with the surrounding grade except when it is not practicable to install it in this manner. Any assembly or portion of an assembly which extends aboveground shall be located no closer than eighteen inches to the face of the curb.

F. A property owner shall, at the request of the city and at the owner’s expense, relocate a backflow prevention assembly which encroaches upon any city right-of-way, when such relocation is necessary for street or utility construction or repairs for purposes of public safety.

G. A person commits an offense if he/she fails to relocate a backflow prevention assembly located in or upon any city right-of-way after receiving a written order from the city to do so. (Ord. 1221 § 2 (part), 2001).

13.05.110 Plumbing code.

As a condition of water service, customers shall install, maintain, and operate their piping and plumbing systems in accordance with all Washington State plumbing laws. (Ord. 1221 § 2 (part), 2001).

13.05.120 Access to premises.

Authorized employees of the city, with proper identification, shall have access during the hours of eight a.m. to five p.m. to all parts of a premises and within the building to which water is supplied. If any water user refuses access to a premises or to the interior of a structure during these hours for inspection by a cross-connection specialist appointed by the city, a reduced pressure principle assembly shall be installed at the service connection to that premises. (Ord. 1221 § 2 (part), 2001).

13.05.130 Inspections/surveys.

In the event that a property owner selects to have a point of use assembly program in lieu of premises isolation protection, it will be the responsibility of the property owner to contract with a person certified by the state and who meets all requirements stipulated in the most recent edition of the city’s SOP manual to carry out the initial and periodical inspections. The recommendations for protection of internal premises for all actual and potential cross-connections shall meet all state plumbing codes, the WAC 246-290-490, or as amended, this chapter and the most recent edition of the city’s SOP manual. (Ord. 1221 § 2 (part), 2001).

13.05.140 Testing and repairs.

Backflow prevention assemblies shall be tested in accordance with the requirements set out in the WAC, or as amended, this chapter and the most recent edition of the city’s SOP manual. (Ord. 1221 § 2 (part), 2001).

13.05.150 Responsibilities of backflow prevention assembly testers.

All backflow assembly testers operating within the city shall be certified in accordance with all applicable regulations of the WAC, or as amended, and shall comply with all of the stipulations in this chapter and the most recent edition of the city’s SOP manual. (Ord. 1221 § 2 (part), 2001).

13.05.160 Maintenance of assemblies.

Backflow prevention assemblies shall be maintained in accordance with the requirements set out in the WAC, or as amended, and the most recent edition of the city’s SOP manual. (Ord. 1221 § 2 (part), 2001).

13.05.170 Installation requirements and specifications.

Backflow prevention assemblies shall be installed in accordance with the requirements set out in the WAC, or as amended, and the most recent edition of the city’s SOP manual. (Ord. 1221 § 2 (part), 2001).

13.05.180 Thermal expansion.

If a closed system has been created by the installation of a backflow prevention assembly, it is the responsibility of the property owner to eliminate the possibility of thermal expansion. (Ord. 1221 § 2 (part), 2001).

13.05.190 Pressure loss.

Any reduction in water pressure caused by the installation of a backflow assembly is not the responsibility of the city. The city will give reasonable assistance to the owner regarding information on adequate sizing of assemblies and proper plumbing practices to provide for required pressure and flows for fire protection. (Ord. 1221 § 2 (part), 2001).

13.05.200 Parallel installation.

Premises where noninterruption of water supply is critical shall be provided with two assemblies of the same type installed in parallel. They shall be sized in such a manner that either assembly will provide the minimum water requirements while the two together will provide the maximum water requirements. (Ord. 1221 § 2 (part), 2001).

13.05.210 New construction.

A. In all new construction, an approved backflow assembly shall be installed at the service connection. The type of the assembly will be commensurate with the degree of hazard as determined by an inspector.

B. When a building is constructed on commercial premises, and the end use of the building is not determined or could change, a reduced pressure principle backflow prevention assembly shall be installed at the service connection to provide protection of the public water supply in the event of the most hazardous use of the building. (Ord. 1221 § 2 (part), 2001).

13.05.220 Residential service connections.

Any residential property which has been determined to have an actual or potential cross-connection and/or has violated the plumbing code or this chapter in any way, shall be required to install an approved backflow prevention assembly in accordance with this chapter. (Ord. 1221 § 2 (part), 2001).

13.05.230 Rental properties.

The property owner is responsible for the installation, testing and repair of all backflow assemblies on their property. When the tenants change, or, if the plumbing is altered in any way, it is the responsibility of the owner to notify the city. (Ord. 1221 § 2 (part), 2001).

13.05.240 Retrofitting.

Retrofitting shall be required on all service connections where an actual or potential cross-connection exists, and wherever else the city deems retrofitting necessary. (Ord. 1221 § 2 (part), 2001).

13.05.250 Costs of compliance.

All costs associated with purchase, installation, inspections, testing, replacement, maintenance, parts, and repairs of the backflow assembly are the financial responsibility of the property owner. (Ord. 1221 § 2 (part), 2001).

13.05.260 Termination of service.

Failure on the part of any property owner, their renter, agent or personal representative to discontinue the use of all cross-connections or to physically separate cross-connections in accordance with this chapter is sufficient cause for the immediate discontinuance of public water service to the premises. (Ord. 1221 § 2 (part), 2001).

13.05.270 Emergency suspension of service.

The director and/or his/her designee may, without prior notice, suspend water service to any premises when such suspension is necessary to stop the eminent threat of any actual or potential cross-connection as defined in this chapter and the most recent edition of the city’s SOP manual. (Ord. 1221 § 2 (part), 2001).

13.05.280 Nonemergency suspension of service.

The director and/or his/her designee may suspend, with twenty-four hours’ notice, the water supply to any premises where the conditions of this chapter or the most recent edition of the city’s SOP manual have been violated. (Ord. 1221 § 2 (part), 2001).

13.05.290 Penalties.

Any person, firm, corporation or business entity violating this chapter shall be deemed guilty of a misdemeanor, and upon conviction thereof shall be fined a sum not exceeding two thousand dollars. Each continuing day’s violation under this chapter shall constitute a separate offense. The penal provisions imposed under this chapter shall not preclude Chelan from filing suit to enjoin the violation. The city of Chelan retains all legal rights and remedies available to it pursuant to local, state and federal law. (Ord. 1221 § 2 (part), 2001).

13.05.300 Provisions as to availability of materials.

The city clerk/treasurer is hereby directed to maintain at all times one copy of Chapter 246-290 WAC, and one copy of the most recent edition of the Pacific Northwest Section American Water Works Association Cross-Connection Control Manual, Accepted Procedure and Practice, for public use and inspection during regular city business hours. (Ord. 1221 § 2 (part), 2001).