Backflow Prevention

What is a Backflow?

Backflow is a condition that occurs when a severe change in pressure within the water distribution system causes water flow in the system to flow in the opposite direction of its normal flow.  Backflow could allow contaminants to enter our drinking water system through cross connections.

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Backflow by meter box


What is a Backflow Preventer?

A backflow preventer is a mechanism designed to prevent backflow by providing a physical barrier between the drinking water system and potential contamination sources.  For a backflow preventer to provide proper protection, it must be designed for the degree of hazard, installed correctly, tested annually by a state certified tester, and repaired as necessary.

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Why do Backflow Preventers have to be tested annually?

All backflow preventers have internal seals, springs, and moving parts that are subject to fouling, wear, or fatigue, and have to be tested periodically to ensure that they are functioning properly.

Please note:

The City of Coconut Creek performs all BPA testing and certification within the City through a City approved vendor, HydroCorp, Inc. The City currently charges an annual fee to all owners of BPA’s for this service. This fee includes recertification testing. Please do not initiate BPA testing as HydroCorp, Inc. is now responsible for the testing. If you have any questions regarding this please email James Moore, Utilities Engineer or Alicia Copeland, Project Coordinator.

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Who is required to have a Backflow Prevention Assemby?

Per City Code of Ordinances, the following facilities are required to have and maintain Backflow Prevention Assemblies:

  • All commercial facilities
  • Irrigation & Fire Protection Systems served by a meter
  • All buildings served by master meters, including, but not limited to multi-family buildings, multi-story buildings, and mobile home parks

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Where Are Cross Connections Found?

Cross connections are found in all plumbing systems.  It is important that each cross connection is evaluated and identified as to what type of backflow protection is required to protect the the drinking water supply. Some plumbing fixtures have built-in backflow protection in the form of a physical air gap. However, most cross connections will need to be controlled through the installation of an approved mechanical backflow prevention device or assembly. Some common cross connections found in plumbing and water systems include:

  • Wash basins & service sinks
  • Hose bibs - irrigation sprinkler systems
  • Auxilary water supplies
  • Photo development equipment
  • Boilers - swimming pools
  • Solar heating systems
  • Fire sprinkler systems

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Cross-Connection devise


Water Quality Personnel
James Moore, PE Utilities Engineer
Theodore Risberg Environmental Engineering Specialist