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Backflow assemblies are required to protect the potable water system. The District is required by the Environmental Protection Agency (EPA) Safe Drinking Water Act, State Department of Public Health and Uniform Plumbing code to be install backflow assemblies where there is a potential cross-connection hazard.
Backflow assemblies have internal seals, springs, and moving parts that are subject to fouling, wear, or fatigue. Because of this, all backflow assemblies must be tested on an annual basis with a calibrated test gauge to ensure that they are functioning properly.
Backflow assemblies are designed to prevent water and potential contaminants from flowing back into the public water system.
The customer is responsible for scheduling the test with a certified tester as well as any fees associated with the test, repair and or replacement.
The backflow assembly needs to be installed just behind the water meter and must follow the AWWA installation standard. If there is a situation where a backflow assembly cannot be installed just behind the water meter please call the Compliance Department at (619) 258-4731.
Yes, all new installations must be inspected prior to the water service being turned on. Please contact the Compliance Department at (619) 258-4731 to discuss installation requirements and to schedule a time for the inspection.
Yes. The District will mail a reminder notice and test form 30 days prior to the required test date.
Time Line as Follows:
First Notice Mailed - 30 days before due date
Second Notice mailed - 15 days before due date
Shut-Off Notice Mailed (Fees Apply) - 10 additional days
Water Service Terminated (Fees Apply) - 48 hours after notification
The Rules and Regulations Sections 5.4 contains information pertaining to the District’s Cross-Connection and Backflow Program.
You can download and print a test form here.
The District does not endorse or recommend any specific backflow assembly testers.
Depending on the circumstances, an extension may be granted. If you need an extension please contact the Compliance Department. An extension must be granted prior to the backflow assembly test due date.
There are a number of references for backflow and cross-connection prevention. The American Water Works Association M14 Manual and the University of Southern California’s (USC) Manual of Cross-Connection Control are two of the most recognized sources of standards in the industry.
A courtesy notice will be mailed to the billing address on file. It is the responsibility of the customer to notify the Compliance Department (619) 258-4731 of any address changes.