The City of Costa Mesa has established guidelines for backflow prevention and cross-connection control to protect the public water supply.
Costa Mesa 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.
The City of Costa Mesa enforces stringent backflow prevention regulations to safeguard its public water supply from contamination. The city mandates the installation, testing, maintenance of various types of backflow prevention devices as determined based on the degree of hazard present at a residential or commerical property. It is important for Costa Mesa 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. Failing to comply with the regulations may result in fines or suspension of water service.
The City of Costa Mesa has adopted rigorous standards for cross-connection and backflow prevention to protect its potable water system. The City of Costa Mesa's cross-connection and backflow regulations are built upon a combination of local municipal code, state plumbing regulations, and county public health enforcement.
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.
The City of Costa Mesa 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.
Costa Mesa property owners are required to install City-approved backflow devices when directed by the City. Additionally, property owners must arrange for annual backflow testing and maintain detailed records of compliance and promptly address device failures or test result deficiencies.
Property owners in Costa Mesa are also required to allow site access for inspections and water system evaluations. It's also important they understand that non-compliance may result in disconnection of water services or fines.
The City of Costa Mesa 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 avert the reverse flow of water that could introduce pollutants or contaminants into the public water system.
- Cross-Connection Control: To eliminate or protect against connections between potable and non-potable water systems, ensuring the safety of drinking water.
The City of Costa Mesa mandates the installation of appropriate backflow prevention devices based on hazard level and water system configuration.
Costa Mesa's water system is managed by the City's Public Works Department, which enforces backflow prevention measures in accordance with:
- California Code of Regulations Title 17: Outlines the requirements for backflow prevention and cross-connection control.
- Costa Mesa Municipal Code: Provides detailed guidelines for implementing cross-connection control programs.
City of Costa Mesa regulations require the installation of approved backflow prevention assemblies (BPAs) in specific scenarios, including:
- Costa Mesa Property Irrigation Systems: To prevent contaminants from entering the potable water supply through irrigation lines.
- Costa Mesa 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.
- Costa Mesa Property Fire Protection Systems: To prevent stagnant water from fire suppression systems from flowing back into the drinking water supply.
- Costa Mesa Property Auxiliary Water Sources: Properties with alternative water sources like wells or cisterns must install backflow prevention devices to prevent cross-contamination.
Costa Mesa property owners are responsible for the installation of backflow prevention assemblies when required by the city or OCHCA.
Failure to install a required backflow prevention assembly can result in termination of water service at your property by the the City of Costa Mesa until compliance is achieved.
To ensure the continued effectiveness of backflow prevention assemblies, the following backflow testing and maintenance protocols are required in the City of Costa Mesa:
- Costa Mesa Backflow Installation Responsibility: Costa Mesa property owners are responsible for installing backflow prevention assemblies as required by the city's regulations.
- Costa Mesa Backflow Compliance: Costa Mesa backflow installations must adhere to the city's standards, including specific device types and installation procedures.
- Costa Mesa Annual Backflow Testing: All backflow prevention assemblies must be tested at least once a year by a certified tester.
- Costa Mesa Post-Installation or Repair Backflow Testing: Any new installation, relocation, or repair of a backflow device requires immediate testing to confirm correct operation.
- Costa Mesa Backflow Record Keeping: Test results must be submitted to the appropriate regulatory agency to maintain compliance records.
- Costa Mesa Approved Backflow Devices: Only backflow prevention assemblies listed by recognized testing agencies are permitted. The USC-FCCCHR provides a comprehensive list of approved devices.
- Costa Mesa 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 City of Costa Mesa backflow testing requirements can result in water service termination until compliance is achieved.
Costa Mesa's regulations mandate the installation of various types of backflow prevention devices as determined based on the degree of hazard present on the consumer's premises.
The cities general backflow prevention device requirements include the following:
- Costa Mesa Backflow Installation Responsibility: Property owners are responsible for installing backflow prevention assemblies as required by the city's regulations.
- Costa Mesa Backflow Compliance: Installations must adhere to the city's standards, including specific device types and installation procedures.
- Backflow Location: Devices should be installed as close as practical to the user's connection, with the city having final authority over the required location.
- Failure to Install Backflow Device: If a property owner in Costa Mesa fails to install the required backflow prevention assemblies, the city may interrupt potable water service until evidence of installation is provided.
More specifically, the City of Costa Mesa mandates the installation of various types of backflow prevention devices, including:
- Air-Gap Separation (AG): A physical separation between the water supply and a potential contamination source, providing the highest level of protection.
- Double Check Valve Assembly (DC): Suitable for low to medium hazard situations, these devices consist of two check valves to prevent backflow.
- Reduced Pressure Principle Backflow Prevention Assembly (RP): Required for high hazard scenarios, these assemblies include a pressure differential relief valve to protect against backflow.
These 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 a particular property in Costa Mesa.
The City of Costa Mesa implements strict Cross-Connection Control and Backflow Prevention regulations and ordinances requuire 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.
- Initial Backflow Testing: Backflow prevention assemblies must be tested by a certified technician immediately after installation.
- Annual Backflow Testing: These assemblies are required to be tested annually to ensure proper operation.
- Certified Backflow Testers: Tests must be conducted by individuals approved by the Orange County Health Care Agency.
- Backflow Documentation: Test results must be submitted to the city's Water Quality Department and the Orange County Health Care Agency.
- Failure to Test: Failure to conduct required testing may lead to water service termination until the device is tested and found compliant.
Costa Mesa 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: Ensure that backflow prevention assemblies are installed as mandated by the city's regulations.
- Backflow Testing: Arrange for initial and annual testing by certified testers and submit the test results to the Water Quality Department and the Orange County Health Care Agency.
- Backflow Maintenance: Maintain backflow prevention assemblies in good working order.
- Non-Compliance: Failure to comply with these requirements may result in penalties, including interruption of water service.
The City of Costa Mesa 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.
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.
Proper testing and maintenance of backflow prevention devices are essential for compliance with local regulations and for safeguarding community health. The City of Costa Mesa has the following requirements for testing, certification, and documentation of backflow prevention assemblies:
- 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 Costa Mesa'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:
- Costa Mesa Municipal Code – Chapter 5, Article 5.5: Water Supply Cross Connection Control sstablishes authority, device requirements, inspection rights, and enforcement tools.
- 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, Costa Mesa property owners can contact the Mesa Water District, which serves Costa Mesa:
- Phone: (949) 631-1201
- Email: waterquality@mesawater.org
- Website: Costa Mesa - Backflow Prevention
For further guidance or assistance with backflow prevention compliance, Costa Mesa homeowners and businesses may contact the Mesa Water District, which serves Costa Mesa for resources and support.
Here is a outline of special circumstances pertaining to backflow assembly installation, testing and repair in Costa Mesa CA which require special attention:
- Emergency Backflow Events: In the event of a suspected backflow or contamination issue, property owners should immediately contact the Water Quality 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.
Costa Mesa, located in the heart of Orange County, is a thriving, culturally rich city recognized for its world-class arts scene, prominent retail and culinary destinations, and a dynamic blend of residential, commercial, and creative industries. With a population of approximately 113,000, Costa Mesa is often described as the nexus of coastal sophistication and urban vitality—just one mile from the Pacific Ocean and minutes from John Wayne Airport.
Originally part of Rancho Santiago de Santa Ana during the Spanish colonial era, Costa Mesa developed into a modest agricultural village before experiencing rapid transformation after World War II. Officially incorporated in 1953, the city evolved into a regional center for commerce, manufacturing, and the performing arts. Today, it is one of Orange County’s most culturally and economically influential cities.
Costa Mesa is internationally known as Orange County’s arts and theater capital, anchored by the renowned Segerstrom Center for the Arts. This expansive campus includes Segerstrom Hall, Samueli Theater, and South Coast Repertory, offering everything from Broadway performances and classical concerts to experimental stage productions. Nearby, the Orange County Museum of Art (OCMA)—recently reimagined in a striking new facility—adds to the city’s stature as a cultural destination.
The city’s commercial core is centered around South Coast Plaza, one of the most prestigious shopping destinations in the world. With over 250 boutiques—including international luxury brands—and a collection of critically acclaimed restaurants, South Coast Plaza draws visitors from around the globe and serves as a major economic driver. The shopping center’s integration with the adjacent arts campus further highlights Costa Mesa’s unique fusion of commerce and culture.
Costa Mesa is also known for its creative and entrepreneurial spirit. The city is home to a thriving community of design studios, media companies, and boutique manufacturing firms, particularly in districts such as the SoBeCa District (South on Bristol, Entertainment, Culture, and Arts) and The LAB Anti-Mall and The CAMP—two pioneering lifestyle retail centers that emphasize sustainability, indie brands, and experiential shopping.
Residential life in Costa Mesa is as varied as its economy. Neighborhoods such as Eastside Costa Mesa, known for its charming mid-century homes and proximity to Newport Beach, are popular with families and professionals alike. Mesa Verde and South Coast Metro offer master-planned communities, golf courses, and condominiums, while Westside Costa Mesa has become a haven for artists, creatives, and young professionals drawn to its warehouse conversions and cultural edge.
Costa Mesa’s parks and public spaces are integral to community life. Fairview Park, a sprawling open space of over 200 acres, features trails, ecological preserves, and scenic overlooks. TeWinkle Park, Lions Park, and the Costa Mesa Skate Park offer recreation opportunities for residents of all ages. The city also hosts major annual events such as the OC Fair, held at the OC Fair & Event Center, which includes concerts, exhibitions, and agricultural showcases that draw over a million visitors each summer.
Education is served primarily by the Newport-Mesa Unified School District (NMUSD), with schools such as Costa Mesa High School and Estancia High School offering robust academic and extracurricular programs. Higher education institutions in the city include Orange Coast College (OCC), one of California’s top-rated community colleges, and satellite campuses of several universities offering workforce and professional development.
Costa Mesa is well-connected by a network of major freeways (I-405, SR-55, SR-73), allowing for efficient access to regional job centers, airports, and beach communities. Public transit is provided by OCTA, and the city promotes bike-friendly infrastructure, walkability, and environmental sustainability through planning initiatives and redevelopment efforts.
Costa Mesa’s diverse population includes a broad mix of ethnic backgrounds, age groups, and professions. This diversity is reflected in the city’s eclectic food scene, featuring everything from upscale coastal cuisine and craft breweries to authentic Latin American eateries and Asian street food. Local institutions such as The Triangle, Costa Mesa Playhouse, and a host of live music venues and galleries contribute to a thriving cultural ecosystem.
