583 Cross Connection Control of Potable Water Supply

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water meter at the service connection. Alternate locations must be approved by the City. Installation: The City is responsible for installation of any and all required backflow prevention assemblies. The installation must be in accordance with the manufacturer's requirements and City specifications. Section 26-47: Testing Backflow Prevention Assemblies: Requirements: All reduced pressure zone, double check valve assembly, and pressure vacuum breaker backflow prevention assemblies will be tested annually by the City. The tests will be performed by certified backflow prevention technicians in accordance with procedures and guidelines established by the University of Southern California Foundation for Cross-Connection Control and Hydraulic Rei earch. A backflow prevention assembly will be considered noncomplaint if the device fails to meet minimum requirements set forth by this agency. Test Results:. Test results will be available to the consumer upon request. Section 26-48: Repair and Maintenance of Backflow Prevention Assemblies: Repairs: Repairs to backflow prevention assemblies will be the responsibility of the City. All repairs must be performed in accordance with manufacturer's recommendations. Maintenance: The City will be required to maintain the backflow assembly and the surrounding site in a manner by which the device is both accessible and operational. Section 26-49: Cross-Connection Control Requirements: Residential Potable Connections: Dual check valve assembly will be required on all residential potable connections, provided, however, the City may require other backflow prevention assemblies as herein defined on residential potable connections which are located in areas of high hazard, as defined in the applicable Dept. of Environmental Protection Regulations as same now exist or may be amended. Residential Irrigation Connections: All residential irrigation connections will require a backflow prevention assembly at the point of connection. Under normal conditions, a double check valve assembly or a pressure vacuum breaker will be adequate; however, if an on-site well exists, chemical injection is utilized, or a source of toxic contamination is present, a reduced pressure zone assembly will be required. Commercial and Industrial Potable Connections: All commercial and industrial potable I = connections will require a reduced pressure zone assembly installed at the service.connection. Commercial and Industrial Irrigation Connections: All commercial ands industrial irrigation connections will require a backflow prevention assembly at the point of connection. Under normal conditions, a double check valve assembly or a pressure vacuum breaker will be adequate; however, if an on-site well exists, chemical injection is utilized, or a source of toxic contamination is present, a reduced pressure zone assembly will be required. Commercial and Industrial Fire Sprinkler Connections: Any connection installed for the purpose of providing water service to a building fire sprinkler system must_be_pr9tected by a i double detector check valve assembly. Section 26-50: Retrofitting of Existing Services: Requirements: Existing water service connections not equipped with_.a backflow 3 °R3220 0926