Backflow Testers
If you are a District customer and are responsible for having the backflow assembly tested, here is a list of certified testers: Certified Backflow Testers List
Backflow Tester Portal
Metro Water District uses an online portal for reporting backflow tests. Follow the link above to access the site and enter your backflow test information. If you have any questions, contact Larry Tanner at 520-575-8100.