For Backflow Testers

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Testers must be on the certified backflow assembly tester list

Certified backflow assembly testers are required to use the City’s Backflow Prevention Assembly Field Testing and Maintenance Report when annual tests are completed.

Official test forms are available here or at the following locations:

Public Works Department
1400 Broadway Avenue
Redwood City, CA 94063

City Hall
1017 Middlefield Road
Redwood City, CA 94063

Completed test forms must be returned to the Public Works Department within thirty days following the testing due date. Incomplete forms will result in a “failed” test and a repeat test will be required.