Backflow Testing - Testing Due by July 15

Saturday, July 15, 2017 - 4:00pm to 5:00pm

The City’s cross connection control program - required by the Oregon Health Division - helps to protect the public water system from possible contamination. Backflow assemblies are used to separate potable water sources from non-potable water sources such as irrigation systems, medical equipment, and private pump systems.

To help prevent contamination and ensure the best water quality, all backflow assemblies must be tested by July 15. Once the test is complete, a copy of the test report must be submitted to the Public Works Department. Additional information, plus a list of state certified testers, can be found online at

For more information about the City’s cross connection control program, backflow assemblies, or testing requirements, please contact Lake Oswego Public Works at or 503-534-5674.