Backflow (Cross Connection) devices that regulate the waste, or non-potable, water movement in your pipes.  The device keeps dirty water from flushing backward into the water system, where it could contaminate the potable, drinkable water supply.

Q: Who needs a backflow device?
A: The Oregon Health Authority requires that the following scenarios require backflow devices to be installed:

• Homes/businesses with irrigation systems
• Homes/businesses with pools and hot tubs
• Medical offices
• Car washes
• Restaurants
• Agricultural farms and dairys
• ​Care facilities
• Schools

If you have questions on your backflow requirements, please feel free to contact us!

Q: How often do I need to have my backflow device(s) tested?
A: Backflow devices are to be tested once a year by a certified backflow testing agency.  A listing of these providers can be found here , under List of OHA-Certified Backflow Assembly Testers.

Once your test is complete, your tester will submit the test reports to West Slope Water District where we maintain a database of our customer who have backflow devices on their properties, the frequency of testing, and device information.

We send out testing reminders to ensure you have proper notification of when your tests need to be completed.

Additional questions?  Please visit the Oregon Health Authority's website.