Cross Connection Program


Backflow Prevention

The City of Silverton is committed to providing safe, clean drinking water. While the water that reaches your home or business is safe, it can be contaminated within a property owner’s piping system, which could degrade water quality in the City through backflow or backsiphoning, into the City’s water mains. Most current water using equipment and appliances have built in backflow prevention features, but some do not. Landscape irrigation systems, boilers, fire sprinkler systems, spas and swimming pools are examples of systems that typically do not have built in backflow protection features and require added protection.

Testing and Test Reports

Backflow assembly test reports are due to the City of Silverton annually, between January 1 and June 1. Tests should be completed during the same month annually, if possible. Cross Connection control is a vital part of keeping water safe throughout the water system. 

Questions regarding the City of Silverton's cross connection program should be directed to the cross connection program coordinator at 503-874-2281 or

Delivery of Test Reports

Certified Testers - Please hand carry or mail test reports to:

City of Silverton Public Works
Cross connection Program
830 McClaine Street
Silverton, OR 97381

General Information
Information and Requirements for Backflow Preventer Installation
Information on Backflow Prevention
State of Oregon Cross Connection & Backflow Prevention website

2017 City of Silverton Backflow Assembly Tester List
Oregon Health Authority Public List of Backflow Assembly Testers

Laws and Regulations
Silverton Municipal Code - Chapter 13.20 Cross Connections
Oregon Administrative Rule (OAR) 333-061-0070 Cross Connection Control and Requirements

  1. Chelsea Starner

    Administrative Assistant
    Phone: 503-874-2281

  2. Maintenance Division

    Physical Address
    City Shops
    830 McClaine Street
    Silverton, OR 97381

    Fax: 503-873-6350