The City of Irvine has established guidelines for backflow prevention and cross-connection control to protect the public water supply.
Irvine property owners are responsible for ensuring that backflow prevention devices are properly installed, tested annually, and maintained in good working order. Non-compliance with these regulations can lead to penalties, civil liabilities and the interruption of water service.
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The City of Irvine emphasizes the importance of backflow prevention to protect the public water supply. Homeowners and commercial properties in Irvine are responsible for installing, testing, and maintaining backflow prevention devices in good working order.
Failing to comply with the regulations may result in fines or suspension of water service. It is important for Irvine homeowners and businesses to stay up-to-date with local regulations and to ensure that their backflow devices are tested annually by a certified tester in conformance with local regulations.
Our certified specialists ensure that backflow prevention devices function properly to prevent contamination of public water resource and protect public health. With state-of-the-art diagnostics, testing, timely repairs, and proactive maintenance, we help commercial properties and residential communities in Irvine avoid civil penalties and costly water service disruptions.
Cross-Connection Control and Backflow Prevention are essential for safeguarding public water supplies from contamination. Backflow can occur when water pressure drops in the public water system, causing non-potable water (such as water from pools, irrigation systems, or industrial processes) to flow back into the potable water system.
These regulations aim to prevent backflow incidents and are designed to comply with both state and local regulations to protect the public health in Irvine.
Irvine property owners must ensure that appropriate backflow prevention devices are installed according to state and city regulations. The devices must be accessible for testing and maintenance. Failure to comply with testing requirements may result in fines or suspension of water service. A $100 or higher fine may be imposed for non-compliance, and the property owner may need to pay additional fees to restore water service.
Irvine homeowners and businesses are required to hire a certified backflow tester annually to conduct the test and submit the results to the City of Irvine. All backflow prevention devices must be tested annually by a certified backflow prevention tester (CBPT). The tester ensures the device functions properly and meets all necessary standards. f the device fails the test, repairs or replacements must be made promptly. Failure to submit the test results on time may result in penalties or water service suspension.
Irvine property owners are also responsible for maintaining the backflow prevention devices in good working condition. This includes regularly inspecting devices for damage, wear, or potential malfunctions. If a device fails, it must be repaired or replaced by a licensed plumber or certified backflow tester. After repairs, the system must be retested, and the test results resubmitted to the City.
Failure to comply with testing requirements may result in fines or suspension of water service. A $100 or higher fine may be imposed for non-compliance, and the property owner may need to pay additional fees to restore water service.
Repeated violations may lead to increased fines or City-administered inspections at the property’s expense.
The City of Irvine enforces backflow prevention regulations to protect its public water supply from contamination.
The purpose of backflow prevention is to keep harmful substances, such as chemicals, fertilizers, or bacteria, from contaminating the city’s drinking water supply by implementing cross-connection control practices and devices to prevent backflow from happening in systems where there is potential for hazardous materials to be introduced into the water system, such as in commercial kitchens, hospitals, or industrial operations.
Irvine’s regulations require the installation of approved backflow prevention assemblies (BPAs) in specific scenarios to protect the water supply.
Irvine's water system is managed by the City's Public Works Department and the Irvine Ranch Water District (IRWD), which enforce backflow prevention measures in accordance with:
- California Code of Regulations Title 17: Outlines the requirements for backflow prevention and cross-connection control.
- City of Irvine Municipal Code: Provides detailed guidelines for implementing cross-connection control programs.
Irvine’s regulations require the installation of approved backflow prevention assemblies (BPAs) in specific scenarios, including:
- Irvine Property Irrigation Systems: To prevent contaminants from entering the potable water supply through irrigation lines.
- Irvine Commercial and Industrial Properties: Facilities with potential cross-connections, such as those involving chemicals or pressurized systems, are required to install appropriate backflow prevention assemblies.
- Irvine Property Fire Protection Systems: To prevent stagnant water from fire suppression systems from flowing back into the drinking water supply.
- Irvine Property Auxiliary Water Sources: Properties with alternative water sources like wells or cisterns must install backflow prevention devices to prevent cross-contamination.
All backflow prevention devices must be approved by recognized standards agencies like the Foundation for Cross-Connection Control and Hydraulic Research at USC or other equivalent organizations.
Failure to install the required backflow prevention assemblies for properties in Irvine CA may result in the city discontinuing water service until compliance is achieved.
To ensure the continued effectiveness of backfl ensurntion assemblies, the following backflow testing and maintenance protocols are required in Irvine:
- Irvine Backflow Installation Responsibility: Irvine property owners are responsible for installing backflow prevention assemblies as required by the city's regulations.
- Irvine Backflow Compliance: Irvine backflow installations must adhere to the city's standards, including specific device types and installation procedures.
- Irvine Annual Backflow Testing: All backflow prevention assemblies must be tested at least once a year by a certified tester.
- Irvine Post-Installation or Repair Backflow Testing: Any new installation, relocation, or repair of a backflow device requires immediate testing to confirm correct operation.
- Irvine Backflow Record Keeping: Test results must be submitted to the appropriate regulatory agency to maintain compliance records.
- Irvine Approved Backflow Devices: Only backflow prevention assemblies listed by recognized testing agencies are permitted. The USC-FCCCHR provides a comprehensive list of approved devices.
- Irvine Certified Backflow Testers: Testing must be conducted by individuals certified by the Orange County Health Care Agency (OCHCA). A directory of certified testers is available on the County's official website.
Failure to comply with Irvine backflow testing requirements can result in water service termination until compliance is achieved.
Backflow prevention devices must be installed in compliance with the Municipal Code and California Plumbing Code. Types of Backflow Prevention Devices include:
- Reduced Pressure (RP) Assemblies: Used in high-hazard situations, these devices have two check valves and a relief valve to prevent contamination. Typically required in commercial and industrial settings.
- Double Check Valve (DC) Assemblies: Suitable for low- to medium-hazard situations. Commonly used for residential irrigation systems, fire sprinkler systems, or small commercial applications.
- Pressure Vacuum Breakers (PVB): Primarily used on irrigation systems to prevent back-siphonage.
- Atmospheric Vacuum Breakers (AVB): Simpler devices used on smaller systems to prevent back-siphonage but not backpressure.
Backflow devices must be installed immediately downstream of the water meter and must be approved by recognized testing agencies. The University of Southern California’s Foundation for Cross-Connection Control and Hydraulic Research (USC-FCCCHR) provides a comprehensive list of approved devices.
Devices must be installed according to the manufacturer’s guidelines and local plumbing codes to ensure they operate effectively.
The appropriate device is determined based on the degree of hazard present at the property in Irvine CA.
Proper testing and maintenance of backflow devices are essential for compliance with local regulations and for safeguarding community health. The City of Irvine has the following requirements for testing, certification, and documentation of backflow prevention assemblies:
Annual Backflow Testing: All backflow prevention devices must be tested annually by a certified backflow prevention tester (CBPT). The tester ensures the device functions properly and meets all necessary standards.
Backflow Test Procedures: The tester checks for pressure differentials, proper sealing of check valves, and overall device operation. Any leaks or failures are noted.
Backflow Test Reports: After testing, the tester must submit a report to the City of Irvine's Water Division. The report typically includes:
- Date of the test
- Tester’s certification number
- Device model and make
- Test results (pass/fail) If the device fails the test, repairs or replacements must be made promptly.
Backflow Repairs and Replacements: If a device fails, it must be repaired or replaced by a licensed plumber or certified backflow tester. After repairs, the system must be retested, and the test results resubmitted to the City.
Irvine property owners are responsible for ensuring that backflow prevention devices are properly installed, tested annually, and maintained in good working order. Non-compliance with the following regulations can lead to penalties, including the interruption of water service:
Backflow Installation: Property owners must ensure that appropriate backflow prevention devices are installed according to state and city regulations. The devices must be accessible for testing and maintenance.
Annual Backflow Testing: Property owners are required to hire a certified backflow tester annually to conduct the test and submit the results to the City of Irvine. Failure to submit the test results on time may result in penalties or water service suspension.
Backflow Maintenance: Property owners are responsible for maintaining the backflow prevention devices in good working condition. This includes regularly inspecting devices for damage, wear, or potential malfunctions.
Non-Compliance Penalties:
- Failure to comply with testing requirements may result in fines or suspension of water service. A $100 or higher fine may be imposed for non-compliance, and the property owner may need to pay additional fees to restore water service.
- Repeated violations may lead to increased fines or City-administered inspections at the property’s expense.
City of Irvine's Water Division oversees Irvine cross connection requirements and may conduct routine inspections of commercial, industrial, and multi-family properties to verify compliance with cross-connection and backflow prevention regulations. Inspections may be prompted by construction, renovation, or reported issues with backflow devices.
Below are the backflow inspection and installation guidelines for Irvine:
Mandatory Inspections: While it is the property owner's responsibility to ensure annual testing, the city may conduct random or routine inspections to verify that backflow prevention devices are properly installed and functioning.
Voluntary Inspections: Property owners can request voluntary inspections if they are unsure about the functionality of their backflow prevention device.- Inspection Focus Areas:
Risk of Contamination: Properties with pools, large irrigation systems, or industrial equipment are inspected more closely due to the higher risk of contamination.
Property Type: Commercial, industrial, and multi-family properties are prioritized for more frequent inspections due to the higher likelihood of cross-contamination.
Proper testing and maintenance of backflow prevention devices are essential for compliance with local regulations and for safeguarding community health. The City of Irvine has the following requirements for testing, certification, and documentation of backflow prevention assemblies:
Testing Fees: These fees are paid directly to certified testers and typically range between $50 and $150 depending on the complexity and type of backflow prevention device.
Penalty Fees: If a backflow test is not completed on time or if a device fails and is not repaired promptly, property owners may incur fines. The City may also charge fees for disconnecting water service.
Inspection Fees: If the City conducts an inspection or retest, additional fees may apply, typically ranging from $50 to $200 depending on the complexity of the inspection.
The City of Irvine has a comprehensive set of regulations in place to ensure backflow prevention and cross-connection control to safeguard its public water supply.
Key Local Ordinances and Codes
California Code of Regulations (CCR) Title 17: Sets statewide guidelines for cross-connection control and backflow prevention that cities, including Irvine, must follow.
Irvine Municipal Code: Contains additional specific regulations regarding backflow prevention devices, including testing intervals, types of devices required, and enforcement procedures.
Other Relevant Codes:
- California Health and Safety Code (Sections 116800-116830): Protects public health by regulating water quality and preventing backflow.
- Uniform Plumbing Code (UPC): Guidelines on the installation and maintenance of backflow prevention systems, widely adopted across California.
The City of Irvine provides resources, forms for backflow test report submissions, and a list of certified testers.
For more information or clarification, Irvine homeowners and businesses may contact the City of Irvine's Water Division:
- Phone: (949) 724-6000
- Email: WaterDivision@cityofirvine.org
- Website: City of Irvine's Water Division - Backflow Prevention
For further guidance or assistance with backflow prevention compliance, contact the City of Irivne Water Division for resources and support.
Here is an outline of special circumstances pertaining to backflow assembly installation, testing and repair which require special attention:
Emergency Situations: In cases where backflow is detected or imminent, property owners must immediately shut off water to their premises. The City will coordinate with the property owner to address the issue before restoring service.
Irrigation Systems: Specific backflow prevention requirements apply to irrigation systems, especially where fertilizers or pesticides may contaminate the water supply. These systems typically require a Pressure Vacuum Breaker or Double Check Valve.
Irvine, located in central Orange County, is one of the most meticulously planned and economically dynamic cities in the United States. Known for its master-planned design, world-class educational institutions, robust tech sector, and exceptionally high quality of life, Irvine is a thriving urban center with a population exceeding 310,000 residents. It consistently ranks among the safest, cleanest, and most livable cities in America.
Founded as part of the Irvine Ranch, a massive landholding once owned by the Irvine family and later developed into a model for master-planned urbanism, Irvine was officially incorporated in 1971. The city's development was guided by a blueprint emphasizing balance between residential neighborhoods, commercial zones, education, and open space. That founding vision continues to shape Irvine's character today—an orderly, sustainable city with distinct "villages" that foster community identity and accessible services.
A cornerstone of Irvine’s identity is its status as a global center of education and research. At the heart of the city lies the University of California, Irvine (UCI), a top-ranked public research university known for its strengths in science, medicine, engineering, business, and the humanities. UCI not only provides a world-class education to over 30,000 students, but also fuels innovation, biotech research, and entrepreneurship through partnerships with the city’s burgeoning tech sector.
Irvine’s economic strength is built on a foundation of technology, higher education, life sciences, and advanced manufacturing. Business districts like Irvine Spectrum, University Research Park, and Airport Business Area are home to hundreds of leading companies, including Broadcom, Blizzard Entertainment, Amazon, Toshiba, and Edwards Lifesciences. The city’s position in the “Tech Coast” corridor has earned it recognition as one of California’s most important innovation clusters.
The Irvine Spectrum Center, a regional destination for shopping, dining, and entertainment, anchors the city’s commercial identity. This expansive outdoor complex features high-end retail stores, global cuisine, a giant Ferris wheel, cinemas, and event venues. Nearby, the Great Park Neighborhoods represent Irvine’s newest large-scale residential and recreational developments, built on the site of the former Marine Corps Air Station El Toro. Orange County Great Park, at its center, includes athletic fields, cultural venues, a farmers market, the Great Park Balloon, and ongoing construction of additional parklands, museums, and a world-class sports complex.
Residential life in Irvine is organized into carefully planned “villages,” each with its own schools, parks, shopping centers, and architectural character. Communities such as Woodbridge, Northwood, Turtle Rock, Portola Springs, and Stonegate reflect Irvine’s commitment to livable, green, and inclusive urban design. Irvine’s neighborhoods are consistently ranked among the best for families, professionals, and retirees due to their safety, cleanliness, and access to top-tier schools.
The city places a strong emphasis on education, served by the Irvine Unified School District (IUSD) and Tustin Unified School District (TUSD). IUSD is consistently ranked among the best in the state, with schools like University High School, Northwood High School, and Portola High School earning national recognition for academic achievement and college preparation.
Green space and environmental stewardship are central to Irvine’s identity. The city has over 280 parks, 60 miles of off-street bikeways, and thousands of acres of permanently preserved open space through The Irvine Ranch Conservancy. Bommer Canyon, Quail Hill, and Shady Canyon offer hiking and equestrian trails within minutes of residential neighborhoods. Irvine’s commitment to sustainability extends to renewable energy, green building standards, and water conservation.
Civic institutions are modern, efficient, and accessible. Irvine City Hall, the Irvine Civic Center, and the Irvine Fine Arts Center serve as administrative and cultural hubs. The Irvine Global Village Festival, one of the largest multicultural festivals in Southern California, reflects the city’s ethnic diversity and international outlook. With a population that includes significant Asian American, Middle Eastern, and international communities, Irvine is a model of cosmopolitanism within a suburban framework.
Transportation infrastructure is another strength. Irvine is connected to the broader region by the I-5, I-405, and SR-133, and features the Irvine Transportation Center, which serves Amtrak, Metrolink, and regional bus systems. The city is a key node in Southern California’s mobility network, offering convenient access to John Wayne Airport and the broader L.A.–San Diego corridor.
