The City of Tustin has established guidelines for backflow prevention and cross-connection control to protect the public water supply.
Tustin 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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Because backflow devices are critical to maintaining clean, safe water supplies, California State Water Districts, County Health Boards and Local Municipalities regulations mandate that only licensed and certified backflow technicians and plumbers who have the expertise, training, have the legal authority to perform repairs or replacements in compliance with regulations and with the necessary quality control to protect the public water system.
Failing to comply with the regulations may result in fines or suspension of water service. It is important for Tustin 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.
The City of Tustin maintains a comprehensive Cross-Connection Control Program to protect its potable water supply from contamination due to backflow.
These regulations are based on the California Code of Regulations (CCR) Title 17 and enforced by the City of Tustin Municipal Code.
Tustin property owners are responsible for ensuring that backflow prevention devices are installed properly and meet local and state regulations. Backflow prevention devices must be installed following Plumbing and Building Code as well as California's State Building Standards.
Tustin property owners must also hire a certified backflow tester to perform annual tests on their devices. All backflow prevention devices must be tested annually by a certified backflow prevention tester to ensure that they are working correctly. Only individuals with a valid Certified Backflow Prevention Device Tester (C.B.P.D.T.) certification can conduct these tests.
Aslo, backflow test results must be submitted to the City of Tustin Public Works Department. If the test results are not submitted on time, a penalty fee may be charged, and water service may be temporarily suspended.
Backflow device maintenance is also an important element of Tustin property owner's responsibilities. Homeowners and businesses are required to keep backflow prevention devices in good working order. If a backflow device fails the test, it must be repaired or replaced immediately.
Once repairs are made, the device must be retested and the new results submitted to the City of Tustin Public Works Department. Backflow prevention devices that are beyond repair or obsolete may need to be completely replaced.
Failing to comply with the City of Tustin backflow regulations may result in fines or suspension of water service. It is important for property owners to stay up-to-date with local regulations and to ensure that their backflow devices are tested annually by a certified tester.
The City of Tustin enforces backflow prevention regulations to protect its public water supply from contamination. These regulations aim to prevent backflow, the unwanted reverse flow of water that can introduce pollutants or contaminants into the potable water system by implementing:
- Backflow Prevention: To prevent the reverse flow of water that could introduce pollutants or contaminants into the public water system.
- Cross-Connection Control: To eliminate or safeguard against connections between potable and non-potable water systems, ensuring the safety of drinking water.
Tustin requires the installation of approved backflow prevention devices at locations where there is a potential risk of contamination. These devices must be installed at or near the property line or immediately outside the building being served, before the first branch line leading off of the service line.
Tustin's water system is managed by the City's Public Works Department, which enforces backflow prevention measures in accordance with:
- Tustin Municipal Code: Outlines the requirements for building regulations, including backflow prevention.
- Title 17, California Code of Regulations: Defines cross-connection control program responsibilities for public water systems.
Tustin's regulations require the installation of approved backflow prevention assemblies (BPAs) to protect the water supply. Backflow prevention assemblies are required in various scenarios, including:
- Tustin Property Irrigation Systems: To prevent contaminants from entering the potable water supply through irrigation lines.
- Tustin 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.
- Tustin Property Fire Protection Systems: To prevent stagnant water from fire suppression systems from flowing back into the drinking water supply.
- Tustin Property Auxiliary Water Sources: Properties with alternative water sources like wells or cisterns must install backflow prevention devices to prevent cross-contamination.
Property owners are responsible for installing backflow prevention assemblies as required by the city's regulations or or OCHCA. Installations must adhere to the city's standards, including specific device types and installation procedures.
Failure to install the required backflow prevention assemblies in compliance with Tustin regulations and requirements may result in the discontinuation of water service until compliance is achieved.
To ensure the continued effectiveness of backflow prevention assemblies, the following backflow testing and maintenance protocols are required in Tustin:
- Annual Backflow Testing: Backflow prevention assemblies must be tested at least annually to ensure proper operation.
- Post-Installation or Repair Backflow Testing: Any new installation, relocation, or repair of a backflow device requires immediate testing to confirm correct operation.
- Backflow Test Record Keeping: Test results must be submitted to the appropriate regulatory agency to maintain compliance records.
- Tustin Certified Backflow Testers: Tests must be conducted by individuals certified by recognized organizations, such as the American Water Works Association (AWWA) California-Nevada Section or the Orange County Health Care Agency.
- Approved Backflow Devices: Only backflow prevention assemblies listed by recognized testing agencies are permitted. The USC-FCCCHR provides a comprehensive list of approved devices.
Failure to conduct required backflow testing for Tustin properties may lead to water service termination until the device is tested and found compliant.
The City of Tustin requires the installation of specific backflow prevention devices based on the level of hazard associated with the water use:
- Reduced Pressure Principle Backflow Prevention Device (RP): Required for all non-residential connections to protect against high hazards.
- Double Check Valve Assembly (DC): Required for all non-residential fire suppression system connections, upgrades, and new installations.
- Air Gap Separation (AG): May be approved as a higher level of protection upon prior written approval from the City.These devices must be approved by the City and installed in accordance with the California Administrative Code Title 17, Section 7603.
These 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.
The appropriate device is determined based on the degree of hazard present at the property.
Proper testing and maintenance of backflow devices are essential for compliance with local regulations and for safeguarding community health.
The City of Tustin has the following requirements for testing, certification, and documentation of backflow prevention assemblies:
- Annual Backflow Testing: Backflow prevention assemblies must be tested at least annually to ensure proper operation.
- Certified Backflow Testers: Tests must be conducted by individuals certified by recognized organizations, such as the American Water Works Association (AWWA) California-Nevada Section or the Orange County Health Care Agency.
- Backflow Documentation: Test results should be submitted to the appropriate city department or agency overseeing water quality.
- Failure to Test: Failure to conduct required testing may lead to water service termination until the device is tested and found compliant.
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Tustin 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:
- Install City-approved backflow devices when directed by the City.
- Arrange for annual backflow testing and maintain detailed records of compliance.
- Promptly address device failures or test result deficiencies.
- Allow site access for inspections and water system evaluations.
- Understand that non-compliance may result in disconnection of water services or fines.
The City of Tustin conducts thorough cross-connection inspections to monitor potential risks in both residential and commercial settings. These inspections are essential for maintaining water safety and preventing the backflow of contaminants into the public supply.
Below are the backflow inspection and installation guidelines for the City of Tustin:
Purpose of Inspections:
- Identify existing or potential cross-connections.
- Confirm that proper backflow prevention assemblies are installed.
- Evaluate whether device types match the hazard level.
- Enforce compliance where violations exist.
When Inspections Occur:
- During new construction, remodeling, or plumbing system upgrades.
- When a new service connection is initiated for commercial or industrial properties.
- Periodically, based on a property's risk profile or device testing history.
- In response to complaints or observed irregularities in water system behavior.
Inspection Process:
1. Advance Notice: Property owners are informed by the City before the inspection.
2. Onsite Visit: A certified Cross-Connection Specialist inspects the plumbing and device setup.
3. Hazard Assessment: The inspector evaluates system complexity and potential contamination risks.
4. Reporting: A written inspection report is issued with required actions or corrections.
5. Follow-Up: Re-inspections are scheduled for any deficiencies or outstanding issues.
Consequences for Non-Compliance:
- Water service may be suspended or disconnected.
- Re-inspection or administrative fees may be applied.
- Continued violations may result in legal penalties per the city code.
The City of Tustin implements strict Cross-Connection Control and Backflow Prevention regulations and ordinances require that all backflow prevention devices must be tested annually to ensure they are functioning properly. Tests must be conducted by a certified backflow prevention tester.
- Testing Fees: Determined by the private certified tester. These fees are separate from any City administrative or permit charges.
- Re-inspection or Reconnection Fees: May apply if devices fail, are overdue for testing, or service is disconnected due to non-compliance.
The City of Tustin's cross-connection and backflow regulations are built upon a combination of local municipal code, state plumbing regulations, and county public health enforcement. These include:
- Tustin Municipal Code – Article 8: Outlines the requirements for building regulations, including backflow prevention.
- California Plumbing Code (Title 24, Part 5 of the California Code of Regulations): Dictates backflow device installation, hazard classification, and device specifications.
- Title 17, California Code of Regulations: Defines cross-connection control program responsibilities for public water systems.
- USC Foundation for Cross-Connection Control: The City relies on USC’s list of approved backflow prevention assemblies and testing protocols.
- AWWA Manual M14: Referenced for installation practices, hazard assessments, and maintenance recommendations.
For more information or assistance, Tustin property owners can contact:
City of Tustin Public Works Department:
- Phone: (714) 573-3000
- Website: City of Tustin - Annual Backflow Testing
For further guidance or assistance with backflow prevention compliance, contact the City of Tustin Public Works Department for resources and support.
Here is an outline of special circumstances pertaining to backflow assembly installation, testing and repair which require special attention:
- Emergency Backflow Events: In the event of a suspected backflow or contamination issue, property owners should immediately contact the Public Works Department for assistance.
- Irrigation Systems: Properties with irrigation systems are required to have backflow prevention devices to prevent contamination from fertilizers or pesticides.
- Multi-Family and Commercial Properties: These properties may have more complex water systems and could be subject to more frequent inspections and advanced backflow prevention requirements.
Tustin, nestled in central Orange County between Irvine and Santa Ana, is a historically rooted and forward-thinking city known for its exceptional livability, well-preserved neighborhoods, and smart urban planning. With a population of approximately 80,000, Tustin offers a rare blend of small-town charm, modern amenities, and strategic access to the economic and cultural assets of Southern California.
Often referred to as “The City of Trees” due to its abundant canopies of eucalyptus and sycamore, Tustin was founded in 1868 and officially incorporated in 1927. Its origins lie in agriculture, particularly citrus and walnut groves, but Tustin evolved rapidly in the mid-20th century alongside the postwar growth of Orange County. Today, it is a masterfully balanced city that honors its heritage while embracing innovation and regional connectivity.
At the heart of the city lies Old Town Tustin, a preserved and revitalized historic district featuring early 20th-century buildings, antique shops, local eateries, and cultural landmarks. Anchored by El Camino Real and Main Street, Old Town regularly hosts community events such as the Tustin Street Fair & Chili Cook-Off, Tiller Days Parade, and Holiday Tree Lighting, which reinforce the city's strong sense of identity and civic pride.
Tustin is also home to the former Marine Corps Air Station Tustin (MCAS Tustin), a decommissioned military base undergoing transformation into a large-scale urban redevelopment known as Tustin Legacy. Spanning over 1,600 acres, this mixed-use development includes new homes, parks, schools, and commercial zones. One of its most notable landmarks is the massive WWII-era wooden blimp hangar, one of the largest freestanding wooden structures in the world. Preservation and adaptive reuse plans are underway to integrate this iconic structure into the city’s cultural and recreational offerings.
Residential life in Tustin is defined by distinct, well-maintained neighborhoods ranging from historic homes near Old Town to newer developments in Tustin Ranch, Tustin Fields, and Columbus Square. The Tustin Ranch area, in particular, features upscale homes, golf courses, and access to top-rated schools, making it a highly desirable enclave for families and professionals.
Tustin boasts a robust park and recreation system. Peppertree Park, Cedar Grove Park, and Tustin Sports Park offer ample green space, sports facilities, playgrounds, and walking trails. The city also offers a range of community classes, youth sports leagues, and senior programming, administered by a proactive Parks and Recreation Department.
Education is a key priority in Tustin, served by the Tustin Unified School District (TUSD). The district includes high-performing schools such as Beckman High School, Foothill High School, and Tustin High School, along with distinguished elementary and middle schools. Innovative programs in STEM, arts, and college preparation have made TUSD one of the top districts in Orange County. The city also benefits from proximity to higher education institutions like Irvine Valley College, Santiago Canyon College, and University of California, Irvine.
Tustin’s economy is diversified across retail, healthcare, professional services, and light manufacturing. The city supports business growth through strategic zoning, business-friendly policies, and redevelopment initiatives. Key commercial hubs include The District at Tustin Legacy, a regional destination featuring retail, dining, entertainment, and creative office space. Nearby, Market Place, straddling the Tustin–Irvine border, serves as one of Orange County’s largest open-air shopping centers.
Civic life is centered around Tustin City Hall, Tustin Library, and the Tustin Area Senior Center, institutions that reflect the city’s commitment to transparent governance, education, and resident wellbeing. The city maintains its own police department and prioritizes neighborhood safety, code enforcement, and public engagement.
Municipal Office Contact Info:
Tustin City Hall
Address: 300 Centennial Way
Tustin, CA 92780
Phone: (714) 573-3000
