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2/22/82 KMD:mb ORDINANCE NO. NS-]624 AN ORDINANCE OF THE CITY OF SANTA ANA AMENDING SECTION 39-28 OF THE SANTA ANA MUNICIPAL CODE, RELATING TO PROTECTION OF THE PUBLIC WATER SUPPLY. THE CITY COUNCIL OF THE CITY OF SANTA ANA DOES ORDAIN AS FOLLOWS: SECTION 1: That Section 39-28 of the Santa Ana Municipal Code, is hereby amended to read as follows: Section 39-~28. Protection of Public Water Supply. (A) State regulations adopted: The regulations of the State Department of Public Health (Title 17, California Administrative Code, Sections 7553-7622, inclusive), as they are now in effect or as they may be amended in the future, insofar as the same are applicable to the protection of the water supply of this City, are hereby adopted, incorporated herein and made a part hereof. (B) Protection of public water su~l~: No water service connection to any premises of a type specified in subsection (G) hereinbelow shall be installed or maintained unless the public water supply is protected as required by said State regulations and this section. (C) Approval: (1) Each backflow preventive device required hereunder shall be approved by the Department prior to installation, and shall be installed by and at the expense of the customer. (2) The Department shall approve backflow preventive devices when the device has received approval by the Foundation for Cross-Connection Control Research of the University of Southern California, and when such device will provide desired service and reliability. (D) Installation: (1) Devices shall be installed at the service connection in an accessible location approved by the Depart- ment. A reduced pressure principle backflow preventive device shall be installed above ground. (2) Where the maximum pressure in the street water main e~fceeds 150 psi, a pressure regulator set at 150 psi or less shall be installed upstream of the backflow preventive device. (3) Backflow preventive devices shall have at least the same cross-sectional area as the water meter. In those instances where it is determined that a continuous water supply is necessary, two sets of backflow preventive devices shall be installed in parallel. Where parallel devices are required, the sum of the cross-sectional areas of the devices shall be at least equivalent to the cross- sectional area of the meter.