The Town is partnering with Backflow Solutions, Inc. (BSI), to manage its water backflow program. As of December 1, 2025, all backflow testers will be required to submit reports on BSI's online portal rather than submitting them to the Town's water department. Water users are required to have their backflow prevention devices tested annually. Find more information on this website at Backflow Testers or contact the Water Department at 360-378-8353.
Backflow testers can register at https://bsionline.com/.