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 Version OptionsRecycled Water Backflow Prevention TestingHeadline.
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.