A backflow test notice means your water district has an assembly on record at your property and needs a passing test report from a certified tester by the date on the letter. Hire a tester, have the assembly tested, and make sure the report is filed before the deadline. That's it.
What the notice is
Water suppliers in California keep a list of every backflow device in their area. State rules, set out in the Cross-Connection Control Policy Handbook, say each one has to be tested at least once a year. The letter you got is just your turn on that list.
What to do, step by step
- Check the date and device info on the letter. Look for the size, type and serial number.
- Call a tester your district approves. Send them a photo of the notice.
- Make sure they can reach the device. Unlock gates and cages, or share the codes.
- If it doesn't pass, OK the repair. The district only accepts a passing report. More on repairs here.
- Ask for your copy once the report is filed.
What if I miss the deadline?
Most districts follow up with a second letter, then a final notice. Some charge fees after that, and some can shut off service. If your date is close, say so when you call and we'll try to fit you in sooner.
What if I don't think I have a backflow preventer?
Look near the water meter, along the front of the building, beside irrigation valves, or at the fire sprinkler riser. If you can't find it, a tester can locate it. If it was removed, the district must be notified.
Does the notice mean something is wrong?
No. It's routine and happens every year. It doesn't mean your assembly failed or that your water is unsafe.
Related questions
How often does a backflow preventer need to be tested?
In California, backflow prevention assemblies must be tested at least once a year. They also need a test right after installation, after any repair, and after being moved. Your water district sets the exact due date and usually mails a notice before it.
What if I miss my test deadline?
Water districts typically send a reminder, then a final notice. Continued non-compliance can lead to fees and, in some districts, interruption of water service. If your deadline is close, contact us and mention the date.
Do you send the results to my water district?
Yes. We submit the test report to your water district in the format it requires and send you a copy for your records.