The City’s Utilities Division makes extensive efforts, along with a diligent Water Quality Monitoring Program, to ensure that the public drinking water system exceeds the standards of the EPA and the California Department of Public Health (CDPH). The Cross Connection Control Program, mandated by the CDPH, is another extensive effort to make sure that high quality drinking water remains protected from potential sources of contamination that may exist within customer’s plumbing systems and equipment on site. These programs and their records are thoroughly inspected by the CDPH on an annual basis, along with other data and incidental reports that are submitted.

Backflow prevention devices properly installed at the water meter, eliminates the potential for contaminated water to flow back into the public drinking water system by way of “cross connection” and “backflow”. The installation of these devices may be required after an inspection by a Cross Connection Control Specialist. The backflow prevention devices are required to be tested upon installation and on an annual basis as customers are notified by the City’s Utilities Division.

The City currently has more than 6,000 backflow prevention devices on record.

The Orange County Health Care Agency has a program under state regulations as well, which addresses backflow prevention within commercial and industrial facilities that have a “higher degree of potential health hazard.” This program corresponds with the City’s Cross Connection Program.

In order to protect against potential cross connection(s) inside your facility, and thermal expansion, it is necessary that you ensure that all equipment, plumbing, and piping be installed and maintained according to the Uniform Plumbing Code.

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• New Device Installation Test Form
• List of Approved Backflow Devices
• Regulations and Standards
• Related Organizations
• Frequently Asked Questions