Recycled Water Backflow Prevention Testing

Recycled water backflow prevention devices must be tested annually to ensure proper function.  These devices must be tested by a certified backflow prevention tester.  If the device fails testing, it must be repaired or replaced within 30 days.  

NapaSan's piped recycled water customers will receive a postcard annually as a reminder to complete the backflow prevention device(s) testing, submit results to NapaSan, and conduct any necessary repairs based upon the testing results.    

A list of certified backflow prevention testers can be found here.


For questions related to backflow prevention testing, please call NapaSan Inspector Brad Cagle at (707) 312-1761, or call the NapaSan office at (707)258-6000.