Chapter 14.55
CROSS-CONNECTION CONTROL1
Sections:
14.55.030 Cross-connection protection requirements.
14.55.040 Backflow prevention assemblies.
14.55.060 Water service termination.
14.55.010 Purpose.
The purpose of this chapter is to protect the public water supply system from contamination due to potential and actual cross-connections. This shall be accomplished by the establishment of a cross-connection control program as required by state regulations. The ordinance codified in this chapter is adopted pursuant to Title 17, Sections 7583 through 7605, inclusive, of the California Code of Regulations, entitled "Regulations Relating to Cross-Connections." (Ord. 303 (part), 1989)
14.55.020 Responsibility.
The city administrator shall be responsible for implementing and enforcing the cross-connection control program. An appropriate backflow prevention assembly shall be installed by and at the expense of the property owner at each user connection where required to prevent backflow from the water user’s premises to the domestic water system. It shall be the property owner’s responsibility to comply with the city of Angels requirements. (Ord. 303 (part), 1989)
14.55.030 Cross-connection protection requirements.
The type of protection that shall be provided to prevent backflow into the public water supply system shall be commensurate with the degree of hazard, actual or potential, that exists on the water user’s premises. Unprotected cross-connections with the public water supply are prohibited. The type of backflow prevention assembly that may be required, listed in decreasing level of protection, includes: air-gap separation (AG), reduced pressure principle backflow prevention assembly (RP), and a double check valve assembly (DC). The water user may choose a higher level of protection than required by the water supplier. The minimum types of backflow protection required to protect the approved water supply at the user’s water connection to premises with varying degrees of hazard are listed in Table 1 of Section 7604, Title 17 CCR. Situations which are not covered in Table 1 shall be evaluated on a case-by-case basis and the appropriate backflow protections shall be determined by the water supplier or health agency. (Ord. 303 (part), 1989)
14.55.040 Backflow prevention assemblies.
A. Only backflow prevention assemblies which have been approved by the city of Angels shall be acceptable for installation by a water user. A list of approved backflow prevention assemblies will be provided upon request to any affected customer. Backflow preventions assemblies shall be installed in a manner prescribed in Section 7603, Title 17, CCR. Location of the assemblies shall be as close as practical to the user’s connection. The city of Angels shall have the final authority in determining the required location of a backflow prevention assembly.
B. Testing of backflow prevention assemblies shall be tested only by persons who have demonstrated their competency in testing of these devices to the city of Angels as provided in Title 17 of the state Department of Public Health, and conducted by the city of Angels or subject to the approval of the city of Angels. Backflow prevention assemblies must be tested at least annually and immediately after installation, relocation or repair. More frequent testing may be required if deemed necessary by the city of Angels. No assembly shall be placed back in service unless it is functioning as required. These assemblies shall be serviced, overhauled, or replaced whenever they are found to be defective and all costs of testing, repair, maintenance and replacement shall be borne by the property owner. Approval must be obtained from the city of Angels prior to removing, relocating or replacing a backflow prevention assembly. (Ord. 303 (part), 1989)
14.55.050 Administration.
The cross-connection control program shall be administered by the city administrator. The city of Angels will establish and maintain a list of approved backflow prevention assemblies. The city of Angels shall conduct necessary surveys of water user premises to evaluate the degree of potential health hazards. The city of Angels shall notify users when an assembly will be tested. (Ord. 303 (part), 1989)
14.55.060 Water service termination.
A. When the city of Angels encounters water uses that represent a clear and immediate hazard to the potable water supply that cannot be immediately abated, the procedure for terminating water service shall be instituted. Conditions of water uses that create a basis for water service termination shall include, but not are not limited to, the following:
1. Refusal to install or to pay cost of testing of a backflow prevention assembly, or to pay cost of repair or replacement of a faulty backflow prevention assembly;
2. Direct or indirect connection between the public water system and a sewer line;
3. Unprotected direct or indirect connection between the public water system and a system or equipment containing contaminants;
4. Unprotected direct or indirect connection between the public water system and an auxiliary water system.
B. For condition A(1) of this section, the city will terminate service to a water user’s premises after proper notification has been sent. If no action is taken within the allowed time period water service shall be terminated.
C. For conditions A(2), A(3), or A(4), the city of Angels shall take the following steps:
1. Make reasonable effort to advise the water user of intent to terminate water service;
2. Terminate water service and lock service valve. The water service shall remain inactive until correction of violations has been approved by the city of Angels. (Ord. 303 (part), 1989)
Prior ordinance history: Ord. 273.