City of Corvallis: backflow testing rules

Who must test

• Backflow prevention assemblies must be tested once a year on the anniversary of the device's installation date. Irrigation, boilers, solar collectors, fire sprinklers, spas and pools typically need added protection. Source.

How the report is filed

• The property owner is responsible for having the test done and making sure a copy of the test report is sent to the Public Works Department. No portal or deadline in days is stated. Source.

Tester registration

• Devices must be tested annually by an Oregon Health Division certified tester. No separate city registration is stated. Source.

Approved testers

• The program page links a city-hosted list of Certified Backflow Testers in the area. Format not confirmed. Source.

If a test is missed

• If annual testing is not completed, Public Works notifies the owner; if the owner does not test, the City may turn off water service, and state law requires discontinuing service until testing is complete. Source.

Program

• Corvallis Public Works administers a Backflow Prevention Program and monitors over 6,500 backflow prevention devices in the City. Source.

How to file your backflow test with City of Corvallis

1. Read your notice. It names the assembly, its location and the date the report is due.
2. Book a tester City of Corvallis accepts. See finding a tester below; book early so there is time to repair a failed assembly.
3. The tester tests the assembly and fills in the test report. A failed assembly is repaired and tested again.
4. The report is filed. The property owner is responsible for having the test done and making sure a copy of the test report is sent to the Public Works Department. No portal or deadline in days is stated.Source.
5. Keep a copy and set a reminder for next year. Set a free test-due reminder.

Finding a tester City of Corvallis accepts

City of Corvallis keeps its register of testers in an online lookup on apps.corvallisoregon.gov. We link it and do not copy it, because it changes as testers register. Open the lookup. The testers on this site hold a state certificate; registration with City of Corvallis is a separate step.

Before you book, ask the tester:

• Are you registered with City of Corvallis?
• Will you send the test report to the utility for me, and how?
• When is my report due? The date is on your notice; the tester needs time to test, repair if needed and file.

Other water utilities in Oregon

• Portland Water Bureau
• Eugene Water & Electric Board
• Medford Water Commission
• City of Beaverton
• City of Gresham
• Rockwood PUD
• Springfield Utility Board
• City of Albany

Read October 6, 2026. Program page: corvallisoregon.gov.

Backflow testers near Corvallis

What the badges mean

✓ OR Certified Backflow Tester Verified

A state roster lists at least one certified tester at this business, with a current certificate. The state sets the exam and renewal.

✓ OR Utility-Approved Tester Verified On the city list

The company is on a water utility's own approved list (the second badge names the list). That is the utility's approval, not a state license, and it counts for that utility.

3 certified testers

How many certified testers the roster lists at this business.

★ 4.8 (25 reviews)

The Google rating, shown as Google reports it. It does not change the order.

Order is by our quality score, never by payment. How we verify listings.

All testers near Corvallis · Oregon roster