How do we set up an annual backflow testing program for our HOA's irrigation?

By OurHOA · General information · Revised September 24, 2026

How an HOA board sets up irrigation backflow testing: find every assembly, learn the water utility's deadline, hire a certified tester, file reports, fix failures.

Part of the HOA board handbook: vendors, projects and upkeep.

The short answer

Every irrigation meter that feeds common-area sprinklers should have a backflow prevention assembly on it. That valve keeps water from the sprinkler lines, which can carry fertilizer, pond water and whatever sits in a sprinkler head, from being pulled back into the drinking water main when pressure drops. The association owns the assemblies on its own irrigation meters, so the association owes the tests. Test each one on the schedule your water utility sets, use a tester the state or utility recognizes, get the report to the utility on time, and fix failures fast. The state drinking water rules set the floor. The utility's cross-connection program sets your actual dates, and the letter from the utility is the document that binds you. A working program is four things: an inventory, a calendar, a tester under contract and a file. Rules differ by state, by utility and by your governing documents, so treat this as general education and check your own.

What Texas, Florida and Colorado require

In Texas, TCEQ's guidance for irrigation owners says a licensed backflow prevention assembly tester must check the assembly when it is installed on an irrigation system, and that your water provider may have adopted rules requiring an annual test. The irrigation rule at 30 TAC 344.50 also requires a test by a licensed tester whenever an assembly is repaired, replaced or relocated. Results go on TCEQ Form 20700, the Test and Maintenance Report, which is submitted to the water system. In Florida, Rule 62-555.360 of the Florida Administrative Code has each community water system adopt a cross-connection policy that says whether the utility or the customer installs, tests and maintains the assemblies, and what qualifications testers need. Assemblies at non-residential service connections are tested after installation or repair and at least annually. Assemblies at residential connections are tested at least every two years. A dedicated irrigation connection needs a pressure vacuum breaker if backpressure cannot develop downstream, or a reduced pressure assembly if it can. Ask the utility which category it puts your irrigation meters in, because that decides annual or every other year. In Colorado, Regulation 11.39 (5 CCR 1002-11) makes the water supplier ensure that assemblies are tested at installation and annually by a Certified Cross-Connection Control Technician, meaning someone certified by ASSE or ABPA. After a failed test, the supplier has 120 days to see the assembly repaired or replaced and retested, suspend service, or remove the cross-connection. Utilities pass that duty to customers. Denver Water, for example, wants irrigation assemblies tested as the water is turned on, runs its irrigation testing season from May to September, mails a reminder 30 days before a test is due, and assesses a $250 penalty after three unanswered letters once a service goes into suspension status.

Build the inventory first

Start with the water bills. Every irrigation account is a meter, and every meter that feeds sprinklers should have an assembly behind it. If the bills show nine irrigation meters and the board can find seven assemblies, that gap is the first job. Then call or email the utility's cross-connection office and ask for the list of assemblies registered to the association, with their due dates. Utilities often know about devices the current board has never seen. Walk the property and record each assembly on one line of a spreadsheet: location, with a photo and a pin on the site map; type, such as reduced pressure (RP), pressure vacuum breaker (PVB), double check (DC) or spill-resistant vacuum breaker; make, model, size and serial number; the meter or account number it serves; the install date if known; and the zones it feeds. Note anything that raises the hazard, such as a fertilizer injector, a pump that draws from a pond or well, or a reclaimed water line nearby. Those can change which assembly type the utility requires. Settle ownership while you walk. Assemblies on association meters serving common area belong to the association. In some townhome communities the association runs one irrigation system across private lots, and the declaration decides who pays. Backflow devices on fire sprinkler lines and private fire mains are a separate subject with their own testing rules. Our guide on who pays for a private fire hydrant or fire line starts there.

Put the tests on a calendar

Tie the test to the spring start-up of the irrigation system. The tester needs the system charged and running, and a failure found in April can be fixed before the summer watering peak. In freeze climates like Colorado, above-ground PVBs and RPs get drained or pulled in the fall and reinstalled in spring, so the start-up visit, the reinstall and the test can be one trip. In Texas and Florida the utility may stagger due dates across the year based on install dates. Ask whether it will align all of the association's assemblies to one month. One visit for nine assemblies costs less than nine visits. A sample year for a freeze-climate community with a May due date: February: confirm the tester contract and send the tester the inventory. April: irrigation start-up and reinstall of winterized assemblies. May: test every assembly in one visit; tester files reports with the utility. June: repair and retest any failures; confirm the utility shows every device as passed. October: blowout and winterize; note any damage for spring. Add the tests to the association's maintenance calendar, which our guide on building a preventive maintenance schedule walks through, so a new board inherits the date.

Hire the tester with a written scope

Check the credential against your state and utility. Texas testers hold a TCEQ backflow prevention assembly tester license. Colorado testers need ASSE or ABPA certification. Florida utilities set tester qualifications in their own policies, and some publish a list of testers they accept. Look up the license or the list before you sign. Do not assume the landscaper covers this. Some landscape companies have a licensed tester on staff, and some do not. If the landscape contract includes backflow testing, it should name the tester and the license number. A one-page scope keeps prices comparable: the inventory list; a price per assembly by type and size for the annual test; a promise to file every report with the utility within its deadline and send the association a copy; the tester's gauge calibration date on each report; hourly and parts pricing for repairs, including rebuild kits by size; the retest price after a repair, or a statement that it is included; response time after a failed test; and the insurance the association requires. Ask for unit prices so the board can see what a failure will cost before one happens.

When an assembly fails

A failed test is common and usually cheap to fix. Worn check valve rubber, tired springs and a fouled relief valve are usually fixed with a rebuild kit. A freeze-cracked body or a model the maker no longer supports gets replaced. The risk is delay. The utility's clock starts on the test date, and in Colorado the outer limit is 120 days before service is shut off or the problem is otherwise removed. Keep the board from becoming the bottleneck by approving repair money in advance. Sample motion: 'Moved that the treasurer may approve repairs and retests of failed irrigation backflow assemblies up to $1,500 per occurrence without further board action, and shall report each repair at the next board meeting.' Pick a dollar figure that fits your system and your spending policy. Anything above it, such as a full replacement on a large meter, comes to the board with the tester's photos and quote. After the repair, the tester retests and files the passing report. Then confirm with the utility that its records show the assembly as passed. A report that never reached the utility looks the same to them as a test that never happened.

Keep the file

Keep one folder per assembly, paper or digital, with every test report, repair invoice, retest report and utility notice, plus the photo from the inventory. In Texas, keep your copy of each Form 20700. Record the program in the minutes once a year in one line, such as 'Board received the 2026 backflow test results: nine assemblies tested, eight passed, one rebuilt and passed on retest June 12.' Assemblies wear out, and large ones are not cheap to replace. Ask your reserve study provider to list them as a component so replacement shows up in the funding plan instead of as a surprise.

Mistakes boards make

The utility's notices go to a former manager or to a director who moved away. Update the mailing address and email on every irrigation account after each board turnover. The board adds a fertilizer injector or ties a pond pump into the system without asking the utility, which can raise the hazard and require a different assembly. The tester runs the test before the system is charged in spring, or the landscaper reinstalls a PVB backward after winter. Owners report a leaking valve by the entrance and nobody connects it to the backflow assembly. The association removes a meter during a landscape conversion and never tells the utility, so notices keep coming for a device that no longer exists. Each of these is fixed by the same habit: one inventory, one calendar and one person who owns both.

Sources

These guides are general education for HOA boards and residents, not legal, tax, or financial advice. Rules vary by state and by your community's governing documents - check with a professional for your situation.

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