Commercial Backflow Testing in Sacramento: Annual Requirements and the 2024 Rule Change

Backflow testing is one of the few plumbing obligations on a commercial property that recurs on a fixed schedule, is enforced by an outside agency, and can interrupt water service if it lapses. It is also one of the easiest to lose track of, because the notice arrives once a year, addressed to whoever the water purveyor last had on file.

The rules changed recently. California's Cross-Connection Control Policy Handbook took effect on July 1, 2024, replacing Title 17 regulations that had gone largely untouched since the 1980s, and Sacramento County adopted Chapter 6.30 of its county code on September 24, 2024. Property managers who set up a backflow routine before then are working from a superseded framework.

This page covers who needs testing, how often, who is allowed to perform it, what changed in 2024, and how to build a compliance file that survives staff turnover. For the wider plumbing program the testing sits inside, see the commercial plumbing maintenance checklist.

What a backflow assembly does, briefly

Water in a building's supply is supposed to move one way. When pressure drops on the supply side, or when pressure downstream rises above it, that flow can reverse and pull water from the building back toward the public main. If the reversed water has been sitting in an irrigation line, a boiler loop, a fire sprinkler system or a process tank, it carries whatever is in it.

A backflow prevention assembly is the mechanical barrier against that. It is also a mechanical device with springs, seats and check valves that wear, which is why testing is annual rather than one-time. An assembly that passed last year is not evidence that it works today.

What changed in 2024

The Cross-Connection Control Policy Handbook

The State Water Resources Control Board's Cross-Connection Control Policy Handbook, commonly shortened to CCCPH, took effect July 1, 2024, and was amended on April 21, 2026. It sets the standards public water systems must follow to protect the distribution system from backflow, and it replaced a Title 17 framework that had been substantially unchanged since the 1980s.

Most of the handbook's obligations land on water systems rather than directly on property owners. Public water systems must develop and implement a Cross-Connection Control Plan, and noncommunity water systems must complete initial hazard assessments before July 1, 2027. Systems must report a backflow incident or an observed unprotected cross-connection within one day.

Those obligations reach property owners indirectly but reliably, because a water system that now has to document its program will document yours. Expect more consistent notices, more hazard assessments of existing connections, and less tolerance for an assembly that has not been tested.

Fire protection is on a longer track. Public water systems have ten years from the handbook taking effect, until July 1, 2034, to bring existing fire protection services up to the double-check valve requirement, so a fire service that is compliant today may still be scheduled for change during the life of the building.

Sacramento County Code Chapter 6.30

Sacramento County adopted Chapter 6.30, its cross-connection control ordinance, on September 24, 2024. The county's Environmental Management Department runs the program, issues annual notification letters for testing, and maintains the list of certified testers registered to perform it.

The county states the requirement plainly: any external backflow device that is required to be installed must be tested annually. The program covers assemblies on fire systems, irrigation applications and commercial buildings.

What it means for a property you manage

Practically, three things. Your assemblies need an annual test. The test has to be done by someone on a certified list, not simply by a licensed plumber. And the documentation needs to reach the right agency, which is where most compliance failures actually happen.

Your requirements come from your water purveyor, not from the county

This is the detail that catches portfolios. Sacramento is served by multiple water purveyors, each administering its own cross-connection control program under the state framework. The City of Sacramento, West Sacramento, Sacramento Suburban Water District and the county program are separate administrations with separate notice cycles, separate submittal processes and separate tester registration.

Two buildings four miles apart can therefore sit under different programs with different paperwork and different due dates. A single portfolio-wide backflow calendar built on one purveyor's schedule will quietly miss the others.

Before anything else, identify the water purveyor for each property, not the city the mailing address sits in. Then confirm that purveyor's notice cycle, submittal method and tester requirements. Do this once, record it per property, and the annual cycle becomes routine.

Which assemblies need testing

More than most managers expect, because assemblies get installed at every point where a building's water could be contaminated and then are forgotten. Common ones on commercial property:

• The main service assembly protecting the domestic supply
• Fire sprinkler and standpipe services, including those on separate fire lines
• Irrigation systems, which are the most commonly overlooked category
• Boiler and hydronic heating loops, where treatment chemicals are present
• Cooling towers and closed-loop mechanical systems
• Commercial kitchen equipment: dishwashers, coffee and soda systems, garbage disposals
• Carbonated beverage dispensers, which need their own dedicated protection
• Photo, dental, medical and laboratory equipment
• Car wash and pressure-washing connections
• Auxiliary water sources such as wells or reclaimed water on the site
• Pools, spas and water features

Irrigation deserves the emphasis. It is outside, it is often installed by a landscape contractor rather than a plumber, it may not appear on any building drawing, and it is the assembly most likely to be discovered only when a notice arrives for a device nobody knew existed.

Who is allowed to test

Not every plumber. Testing must be performed by a certified backflow prevention assembly tester, and Sacramento County maintains a registered list of testers approved to perform annual testing under its program.

Certification is separate from a contractor's license. A licensed plumbing contractor may or may not employ a certified tester, and a certified tester may or may not be registered with the specific purveyor your property falls under. Confirm both before scheduling: that the individual holds current certification, and that they are recognized by the agency that will receive the report.

Ask for the tester's certification number and expiration, the calibration date of their test kit, and confirmation that they are on your purveyor's accepted list. Test kits require periodic calibration, and a report from an out-of-calibration kit can be rejected.

The annual cycle, and where properties fall out of it

The pattern is consistent across programs. The purveyor sends a notice identifying the assemblies on record for the property and a window for testing. A certified tester performs the test. A report goes to the purveyor, sometimes by the tester and sometimes by the owner. The cycle repeats.

Compliance fails in a small number of predictable ways, and almost none of them involve a failed assembly:

• The notice went to a prior owner, a prior manager, or a billing address nobody monitors
• The test was performed but the report was never submitted to the purveyor
• The tester was not registered with that particular purveyor, so the report was not accepted
• An assembly exists on site but not on the purveyor's records, so it is never tested
• An assembly is on the purveyor's records but was removed or replaced without notification
• A tenant improvement added an assembly nobody registered
• The property changed hands and the compliance file did not transfer

The county's published material describes the annual requirement and the certified tester list but does not spell out penalties or service consequences on its program page. Enforcement provisions sit in Chapter 6.30 itself, and other purveyors publish their own. Confirm the consequences that apply to your property rather than assuming, and treat interruption of water service as a real possibility rather than a theoretical one — it is the standard enforcement mechanism in cross-connection programs generally.

What a test actually involves

A tester isolates the assembly, attaches a differential pressure gauge to its test cocks, and verifies that the check valves hold and, on a reduced pressure assembly, that the relief valve opens at the correct differential. It takes a matter of minutes per assembly once access is established.

Water is shut off to whatever the assembly serves for the duration. On a domestic service that means the building; on irrigation it means the landscape; on a fire service it means coordinating with the fire alarm monitoring company so an impairment signal does not dispatch anyone. Building that coordination into scheduling is what separates a smooth test from a tenant complaint.

Access is the other variable. Assemblies in locked enclosures, behind landscaping that has grown over them, in vaults that need pumping out, or in tenant spaces requiring notice all add time. A tester who arrives and cannot reach the assembly usually still charges for the trip.

When an assembly fails

Failure is common and usually repairable. Springs weaken, rubber seats harden, debris lodges in a check. Most failures are resolved with a repair kit rather than replacement, and the assembly is retested immediately after.

Ask in advance how a failure is handled: whether the tester carries common repair kits, whether repair is quoted before work proceeds, whether the retest is included or billed separately, and how quickly a report can be resubmitted. A tester who has to return in two weeks with parts is a tester who has left you out of compliance in the interim.

Replacement becomes the answer when an assembly is obsolete, parts are unavailable, or the installation no longer matches the hazard. That is a plumbing project with permitting implications, not a service call, and it should be scoped as one.

Build the compliance file once

The single highest-return thing a property manager can do here is create a per-property record that survives turnover. It should hold:

• The water purveyor serving the property, named explicitly
• Every assembly: type, make, model, serial number, size and physical location
• A site map or photographs showing where each one is
• The hazard each assembly protects against
• Test date, result and tester for each assembly, going back several years
• The certification number of each tester used
• Proof the report was received by the purveyor, not just that the test happened
• The notice cycle and typical due date for that purveyor
• Access requirements: keys, enclosure codes, tenant notice, alarm coordination contacts
• Repair and replacement history

The receipt of submission matters more than the test report. A test that happened and was never filed is, from the agency's point of view, a test that did not happen.

What testing costs, and what moves the number

Backflow testing is usually priced per assembly, with the first assembly at a property carrying the trip, and additional assemblies on the same visit costing less. That structure is why testing everything at a property on one visit is materially cheaper than testing them as notices trickle in.

The variables that actually move a quote:

• Number of assemblies and whether they can be done in one visit
• Assembly size, since large services take longer and may need larger equipment
• Access difficulty: vaults, locked enclosures, overgrown landscaping, tenant spaces
• Whether fire service coordination and alarm impairment notification are required
• Whether testing must happen outside business hours to avoid disrupting tenants
• Whether report submission to the purveyor is included or left to you
• Whether repairs, parts and retests are quoted separately
• Portfolio pricing, where several properties are scheduled together

Ask for a per-assembly price, a stated trip charge, and confirmation of whether submission is included. Those three answers make otherwise incomparable quotes comparable.

Questions to ask a backflow tester

• Are you certified, and what is your certification number and expiration date?
• Are you registered with the specific water purveyor serving this property?
• When was your test kit last calibrated?
• Do you submit the report to the purveyor, or is that our responsibility?
• Will you provide proof the purveyor received it?
• What is the price per assembly, and what is the trip charge?
• Do you carry common repair kits, and how are repairs quoted?
• Is the retest after a repair included?
• Can you locate and inventory assemblies we may not have on record?
• How do you coordinate fire service testing with our alarm monitoring company?
• Can you schedule outside business hours, and at what rate?
• Can you test our whole portfolio on a coordinated schedule?

Frequently asked questions

How often does commercial backflow testing have to be done in Sacramento?

Annually. Sacramento County's cross-connection control program states that any external backflow device required to be installed must be tested annually, covering assemblies on fire systems, irrigation and commercial buildings. Individual water purveyors administer their own programs under the same state framework, so confirm the notice cycle and due date with the purveyor serving your specific property.

Who can perform backflow testing?

A certified backflow prevention assembly tester. Sacramento County maintains a list of certified testers registered to perform annual testing under its program. Certification is separate from a plumbing contractor's license, so confirm both that the individual is currently certified and that they are recognized by the agency that will receive your report.

What changed with California backflow rules in 2024?

The State Water Board's Cross-Connection Control Policy Handbook took effect July 1, 2024, replacing Title 17 regulations largely unchanged since the 1980s. Public water systems must develop and implement cross-connection control plans, and noncommunity systems must complete initial hazard assessments before July 1, 2027. The handbook was amended on April 21, 2026. Sacramento County adopted Chapter 6.30 on September 24, 2024. Most obligations fall on water systems, but they reach property owners as better-documented programs and more consistent enforcement.

Do fire sprinkler systems need backflow testing?

Yes, fire services carry backflow assemblies and are covered by the county program. They also sit on a longer compliance track under the state handbook, which gives public water systems until July 1, 2034 to bring existing fire protection services up to the double-check valve requirement. Testing a fire service requires coordination with your alarm monitoring company so the impairment does not trigger a dispatch.

What happens if backflow testing is not completed?

The county's program page describes the annual requirement and the certified tester list without detailing penalties; enforcement provisions sit in Chapter 6.30 and in each purveyor's own rules. Interruption of water service is the standard enforcement mechanism in cross-connection programs, so treat a missed test as a service risk and confirm the specific consequences with the purveyor serving your property.

Why did we get a notice for an assembly we did not know about?

Because purveyor records and building records drift apart. Irrigation assemblies installed by landscape contractors, devices added during tenant improvements, and equipment connections such as carbonated beverage dispensers frequently exist on one list and not the other. The fix is a one-time inventory walk with a tester who can locate and identify every assembly on site, reconciled against what the purveyor has on record.

Does a failed test mean the assembly has to be replaced?

Usually not. Most failures come from worn springs, hardened seats or debris in a check valve, and are resolved with a repair kit and an immediate retest. Replacement becomes necessary when an assembly is obsolete, parts are no longer available, or the installation no longer matches the hazard it protects against — which is a permitted plumbing project rather than a service call.

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Before scheduling, identify the water purveyor for each property, confirm your tester is certified and registered with that purveyor, and make sure report submission is somebody's explicit responsibility in writing.