City water utility · Oregon
Backflow testing in Beaverton, OR
City of Beaverton Water (Public Works)'s rules: who must test, when it's due, testers, filing and penalties.
Beaverton wants backflow assemblies tested when installed, repaired or moved, then at least once a year, by an Oregon Health Authority certified tester. Sprinklers, boilers, wells and fire systems are the usual ones. Call the Backflow Prevention Office for your due date and report form.
- Who
- Lawn sprinkler systems: every year
- Fire sprinkler lines: every year
- Homes (other than sprinklers): every year (some)
- Due
- Test at least once every 12 months.
- Testers
- Hire a tester certified by the Oregon Health Authority and look one up on the state's tester list.
- If late
- Oregon rules require every water supplier to be able to shut off service when a required assembly is not tested.
Who must have a backflow test
The usual home cross connections are sprinkler systems, boilers, private wells and fire sprinkler systems. They count even when you are not using them, for example with the sprinklers turned off or a well sitting idle. An assembly must be tested at installation, repair or move, at least every year after that, after a backflow incident, and after an air gap is re-plumbed. Repeat failures and health hazards can mean tests more often than yearly.
- Lawn sprinkler systemsRequiredat least once a year
Applies even if the sprinklers are turned off.
- Fire sprinkler linesRequiredat least once a year
Anyone may repair or replace an assembly that protects a stand-alone fire system.
- Homes (other than sprinklers)Someat least once a year
Only homes with a boiler or a private well. A well that is not in use still counts.
Source: beavertonoregon.gov · checked Oct 18, 2026
When the test is due
Test at least once every 12 months. Also test when an assembly is installed, repaired or moved, after a backflow incident, and after an air gap is re-plumbed. Call the Backflow Prevention Office to confirm your due date.
Source: beavertonoregon.gov · checked Oct 18, 2026
Finding a tester
Hire a tester certified by the Oregon Health Authority and look one up on the state's tester list. Plumbers can repair or replace any assembly. A landscaper with the right Landscape Contractors Board license who is also an OHA certified tester can install, repair or replace sprinkler assemblies. Owners can repair or replace their own assemblies.
Source: beavertonoregon.gov · checked Oct 18, 2026
Filing the test report
- Who files
- Not published. Ask City of Beaverton Water (Public Works).
- Fee
- None listed by the utility
Oregon rules require the tester to give the City a copy of every test report within 10 working days, in a form the City accepts. Call or email the Backflow Prevention Office to ask for the form and where to send it.
Source: oregon.gov · checked Oct 18, 2026
If the test is late or fails
Oregon rules require every water supplier to be able to shut off service when a required assembly is not tested. Call the Backflow Prevention Office about reminders, deadlines and any fees.
Failed test: A failed assembly must be repaired and tested again, or replaced with a new one that is tested. It can also be removed if the City approves and the City building department approves your plumbing permit.
Source: beavertonoregon.gov · checked Oct 18, 2026
The rules behind it
- OAR 333-061-0070: State rule that sets when assemblies must be tested
Contact City of Beaverton Water (Public Works)
Source: beavertonoregon.gov · checked Oct 18, 2026
Backflow testing in Beaverton: questions
Do I need a backflow test for my sprinkler system in Beaverton?
Yes. City of Beaverton Water (Public Works) requires backflow assemblies on lawn sprinkler systems to be tested at least once a year. Applies even if the sprinklers are turned off.
When is my backflow test due in Beaverton?
Test at least once every 12 months. Also test when an assembly is installed, repaired or moved, after a backflow incident, and after an air gap is re-plumbed. Call the Backflow Prevention Office to confirm your due date.
How do I find a backflow tester in Beaverton?
Hire a tester certified by the Oregon Health Authority and look one up on the state's tester list. Plumbers can repair or replace any assembly. A landscaper with the right Landscape Contractors Board license who is also an OHA certified tester can install, repair or replace sprinkler assemblies. Owners can repair or replace their own assemblies.
What happens if I skip my backflow test in Beaverton?
Oregon rules require every water supplier to be able to shut off service when a required assembly is not tested. Call the Backflow Prevention Office about reminders, deadlines and any fees.
What if my backflow assembly fails the test?
A failed assembly must be repaired and tested again, or replaced with a new one that is tested. It can also be removed if the City approves and the City building department approves your plumbing permit.
Every fact on this page comes from City of Beaverton Water (Public Works)'s own pages, forms or code, checked Oct 18, 2026. Rules change: your notice and the utility have the final word. Spot a mistake? Tell us.