The City of Westminster has established guidelines for backflow prevention and cross-connection control to protect the public water supply.
Westminster 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.
Backflow Test Pros is 100% dedicated to ensuring your business meets Westminster water authority annual backflow testing and repair requirements so you can avoid civil penalties and ensure your water is not turned off for noncompliance.
Schedule in advance to ensure the most convenient backflow testing time slot and ensure water authority certification
Save time and avoid the headache of finding your city backflow prevention test certification letter
Avoid costly disruptions to your business operations with the Backflow Test Pros backflow repair coverage
Document your backflow prevention test status with automated same day water authority certification
With Backflow Test Pros' Managed Backflow Testing & Maintenance service, there is no need for Westminster businesses and homeowners to spend hours going over county and local water utility regulations, ordinances, requirements, deadlines, fees, guidelines, reporting schedules and forms.
Everything is Done for You to simply the backflow maintenance process and ensure compliance with local regulations.
Backflow Test Pros are AWWA Certified Backflow Testers and Certified Backflow Testers with County Health Departments across Southern California. As state licensed contractors, and AWWA cross connection specialists, our team of experienced backflow experts work with city water departments throughout Southern California to protect our water, and prevent backflow contamination.
Relying on Backflow Testing Pros' licensed, certified and bonded professionals ensures that your backflow assembly installation, testing and repair is performed by certified cross connection control and backflow prevention experts in a timely manner conforming to backflow prevention testing, repair and installation protocols required by the City of Westminster Water Authority, state water board regulations and backflow prevention certification bodies.
With state-of-the-art diagnostics, timely repairs, and proactive maintenance, we help commercial and residential customers in Westminster and across Southern California avoid costly civil liabilities, penalties and water service disruptions.
Leading national brands and local businesses in Westminster and throughout Southern California trust our backflow prevention device testing and repair services to safeguard the public water supply and ensure compliance with state and municipal regulations.
Backflow Test Pros' commitment to precision, reliability, and regulatory compliance has made us the preferred choice for Westminster homeowners and businesses that demand the highest standards in water safety at the most competitive prices.
Backflow Test Pros provides dedicated support in everything from initial scheduling, water department communications, due date tracking, same day approval, routine maintenance and urgent repairs.
As a Backflow Test Pros client you can rest assured knowing that your backflows assemblies are monitored and compliant with local water authority regulations.
Backflow Test Pros Turn-key Backflow Maintenance includes:
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 Westminster 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 Westminster enforces rigorous standards for cross-connection and backflow prevention to protect its potable water system. Through enforcement of its municipal code and collaboration with the Orange County Health Care Agency, the city ensures public health and water safety. Property owners are obligated to install, test, and maintain backflow devices and cooperate with inspections. Non-compliance can lead to penalties, including the interruption of water service.
These regulations are based on the California Code of Regulations (CCR) Title 17 and enforced by the City of Westminster Municipal Code.
Westminster 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.
Westminster 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 Westminster Westminster – Water Division. 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 Westminster 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 Westminster – Water Division. Backflow prevention devices that are beyond repair or obsolete may need to be completely replaced.
Failing to comply with the City of Westminster 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 Westminster 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.
Westminster 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.
Westminster water system is managed by the City's Water Division, which enforces backflow prevention measures in accordance with:
- Westminster Municipal Code – Water System Regulations: Outlines the requirements for backflow prevention and cross-connection control.
- Title 17, California Code of Regulations: Defines cross-connection control program responsibilities for public water systems.
Westminster'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:
- Westminster Property Irrigation Systems: To prevent contaminants from entering the potable water supply through irrigation lines.
- Westminster 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.
- Westminster Property Fire Protection Systems: To prevent stagnant water from fire suppression systems from flowing back into the drinking water supply.
- Westminster 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 Westminster 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 Westminster:
- 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.
- Westminster 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 Westminster properties may lead to water service termination until the device is tested and found compliant.
The City of Westminster 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 Westminster 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.
Westminster Annual Backflow Testing Promotion Offer
Westminster 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 Westminster 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 Westminster:
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 Westminster 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 Westminster cross-connection and backflow regulations are built upon a combination of local municipal code, state plumbing regulations, and county public health enforcement. These include:
- Westminster Municipal Code – Water System Regulations: Outlines the requirements for backflow prevention and cross-connection control.
- 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, Westminster property owners can contact:
City of Westminster – Water Division
- Phone: (714) 548-3690
- Website: Westminster Annual Backflow
For further guidance or assistance with backflow prevention compliance, contact the City of Westminster – 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 Backflow Events: In the event of a suspected backflow or contamination issue, property owners should immediately contact the Westminster – Water Division 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.
Westminster, located in the northwestern part of Orange County, is a culturally rich and historically significant city best known as the heart of the Vietnamese-American community in the United States. With a population of approximately 90,000, Westminster blends suburban comfort, deep-rooted immigrant heritage, and commercial vitality, making it one of Southern California’s most distinctive and community-oriented cities.
Founded in 1870 by Reverend Lemuel Webber as a Presbyterian temperance colony, Westminster originally thrived as an agricultural settlement. The city was incorporated in 1957, and over the decades has grown into a diverse and civically active municipality. Its most profound transformation came after the Vietnam War, when Westminster became a resettlement hub for Vietnamese refugees, many of whom established businesses, institutions, and homes in the area—creating what is now recognized nationally as Little Saigon.
Little Saigon is not only the cultural and economic heart of Westminster, but also the largest Vietnamese-American enclave in the U.S. Centered along Bolsa Avenue and spanning across several city blocks, the district is home to hundreds of Vietnamese restaurants, supermarkets, jewelers, professional services, and cultural institutions. Landmarks such as the Asian Garden Mall (Phước Lộc Thọ), Vietnamese American Cultural Center, and numerous Buddhist temples and Catholic churches serve as gathering places and symbols of cultural pride. The area regularly hosts Tet (Lunar New Year) celebrations, night markets, parades, and festivals that draw tens of thousands of attendees from across the region.
Westminster also holds a significant place in civil rights history. The city was the origin of the landmark 1947 case -Mendez v. Westminster-, in which a group of Mexican-American families successfully sued to end school segregation in California—paving the way for -Brown v. Board of Education- and broader desegregation efforts across the nation. This legacy is commemorated by the Mendez Monument at Mendez Historic Trail Park, honoring the plaintiffs’ contribution to educational equity.
Civic life is anchored at Westminster City Hall, which houses municipal departments including the Westminster Police Department and administrative offices. The city maintains an independent local government with a strong emphasis on public safety, infrastructure, and cultural inclusion. Residents are served by a variety of public facilities, including the Westminster Library, Senior Center, and Community Services Department, which oversees programs in recreation, youth engagement, and community wellness.
The city’s parks system supports neighborhood cohesion and quality of life. Sigler Park, Liberty Park, and Westminster Park offer athletic fields, walking trails, picnic areas, and community centers. These green spaces host annual events such as the Summer Concert Series, Movies in the Park, and cultural celebrations reflecting the city’s demographic diversity.
Education in Westminster is primarily provided by the Westminster School District, Ocean View School District, and Huntington Beach Union High School District, with high schools such as Westminster High School and La Quinta High School known for their academic and extracurricular programs. The city is located near several colleges and universities, including Golden West College and California State University, Long Beach, offering residents access to higher education and vocational training.
Economically, Westminster benefits from its strategic location near Interstate 405, which connects it to major employment centers in Orange and Los Angeles Counties. The city’s economy is fueled by small businesses, particularly in the retail and service sectors, along with medical offices, educational institutions, and hospitality enterprises. The Westminster Mall, currently undergoing planning for redevelopment, represents one of the city’s key opportunities for economic revitalization through mixed-use development and housing integration.
Westminster continues to focus on economic growth, infrastructure modernization, and housing development—while maintaining affordability and cultural preservation as core policy objectives. Initiatives include streetscape enhancements, small business support, and transit-oriented planning efforts to ensure long-term sustainability and connectivity.
With its combination of rich cultural identity, historical significance, and welcoming community fabric, Westminster stands as a model of resilience, multiculturalism, and civic pride. As it navigates the future, the city remains deeply committed to honoring its past while fostering inclusive growth and opportunity for generations to come.
Municipal Office Contact Info:
Westminster City Hall
Address: 8200 Westminster Blvd
Westminster, CA 92683
Phone: (714) 898-3311
