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
Every water supplier in California has to guard the public system against contamination from private plumbing. The State Water Board's Cross-Connection Control Policy Handbook requires them to track each backflow assembly and have it tested every year. Your notice is that yearly reminder.
What to do, step by step
- Find the due date and assembly details on the notice: address, assembly type, size, serial number and location if listed.
- Book a certified tester who is approved by your district. Share the notice so they bring the right parts.
- Give access. Gate codes, cage keys and a phone number are usually all that's needed.
- If it fails, approve the repair. It must be repaired and retested before a passing report can be filed. See backflow repair.
- Confirm the report was filed and keep your copy.
What if I miss the deadline?
Districts usually send a second or final notice. After that, depending on the district, you may face fees or interruption of water service. If you're close to the date, call and mention it when booking.
What if I don't think I have a backflow preventer?
Check by the water meter, the front wall of the building, near your sprinkler valves, or by the fire riser if you have one. If you still can't find it, we can. If it was taken out, the district needs to know.
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?
Once a year at minimum. A device also needs testing right after it's installed, repaired or moved. Your water district picks the due date and normally mails a reminder ahead of time.
What happens if a backflow test is late?
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.
Who sends the report to the district?
Yes. We submit the test report to your water district in the format it requires and send you a copy for your records.