DSRSD Backflow Testing Info

Annual Testing

The DSRSD requires annual testing of backflow prevention devices on water service lines for domestic use, irrigation, and fire sprinklers. Additionally, backflow devices on fire service lines must undergo regular meter inspections to ensure they function properly. For more information, refer to the Backflow/Cross Connection Requirements.

Becoming a District-Approved Backflow Tester

The DSRSD maintains a list of approved backflow testers for customers. Testers are required to submit their test results online through the DSRSD Tokay Test Entry Website. To be added to the approved list, testers must submit an application, a backflow tester wall certificate, a wallet card, and test kit calibration certificates by February 15 each year. If testers have not attended prior sessions, they must join a Tokay training session. For training inquiries, call 925-875-2238. Testers must also calibrate their test equipment annually and provide proof with their application. To gain approval, testers need certification from AWWA, NCBPA, or another District-approved certification program.

Backflow Test Reports

DSRSD Backflow Testing will notify customers when their backflow prevention devices require testing. The notice will include test report due dates and a list of backflow assemblies, including serial numbers and locations. A blank DSRSD test report form can be downloaded for new installations. For existing assemblies, testers are required to use the Tokay test entry website to submit test results