City of Scottsdale Water Resources (Water Quality,...

Who must test

Scottsdale's Cross-connection Control Program requires approved assemblies on all plumbing systems per city codes; commercial customers must have assemblies inspected annually and are notified by mail when due. Source.
The 2026 updated backflow code lists landscape irrigation systems as requiring a PVB or RP, and premises using nonpotable water for irrigation need an RP. Source.

All test reports are due to the Cross-Connection Control Program within seven days for any type of work or certification, per Ordinance 49-65. Source.
The Water Quality Division notifies customers when assemblies are due, and testing should not be done outside the yearly schedule. Source.

Test reports use the City of Scottsdale Approved Tester Form and are emailed to backflowtesting@scottsdaleaz.gov or mailed to City of Scottsdale Cross-Connection Control Program, PO Box 25089, Scottsdale, AZ 85255. Source.

Testers apply for Backflow Testing Recognition with copies of tester certification (ADEQ recognized), business insurance, Arizona ROC contractor licence, gauge calibrations, and a Scottsdale business licence if located in Scottsdale. Source.
All test gauges must be calibrated at least once a year by a recognized laboratory, and the calibration report is forwarded to Water Quality. Source.
All backflow assembly testers must hold and maintain certification recognized by the Arizona Department of Environmental Quality. Source.

The commercial services page links a list of certified backflow testers. not downloaded). Source.

Testers who do not follow the requirements may be removed from the Backflow Tester List and have testing in Scottsdale suspended. Source.
A civil violation of the backflow section carries a fine not to exceed $1,000, and each day a violation continues is a separate offence; water service can also be disconnected after notices. Source.

Read October 6, 2026. Program page: scottsdaleaz.gov.