Cross Connection Control/Backflow

cross connection control/backflow

According to Oregon drinking water regulations, the City of West Linn must require annual testing of the backflow prevention assemblies the community is relying on to protect the public water system. These tests must be performed no later than July 1st of each year. Certified Backflow Assembly Testers can be found at https://yourwater.oregon.gov/backflow.php

Cross connection contamination of the public water system is the leading cause of waterborne disease in public water systems. Backflow prevention assemblies play an important role in protecting the quality of your drinking water. Oregon plumbing code and drinking water regulations require a backflow prevention assembly to be installed any time there is a connection made between drinking water piping and piping containing a substance that is not drinkable, as in irrigation systems and fire protection systems.  This assembly is a mechanical unit that prevents the non –drinkable substance from being able to flow backwards into your plumbing system and / or back into the public water system.

Residents with backflow assemblies will be receiving individualized mailers with details regarding their devices. The information in the yellow box of the letter will assist your tester in inputting your results into the City’s online system. A sample letter is linked below.  

If you have any further questions about The City of West Linn’s backflow prevention program, contact our Water Operations Supervisor at our Public Works office at 503-656-6081 or email: backflow@westlinnoregon.gov