Northwest Clear Beta
Certified Backflow Assembly Testing · Washington

Northshore Utility District — Backflow Testing Requirements Kenmore and parts of Bothell, Lake Forest Park, Kirkland and Woodinville

If you received a backflow testing notice from Northshore Utility District, this page explains how their program works and how to schedule a certified tester.

Schedule Backflow Test

The short version

  • Testing cycle: Annual. Every backflow assembly on your property must be tested by a Washington State certified Backflow Assembly Tester (BAT).
  • Who sends the report: Under Northshore Utility District's program, your tester sends the completed report to the utility.
  • What happens if you miss it: If you do not test your backflow assembly on an annual basis, and when notified to do so by the District, your water service may be terminated to protect the public water system.

How reports are submitted to Northshore Utility District

Northshore mails a reminder letter when your test is due. Completed reports can be emailed to backflow@nud.net or faxed to (425) 398-4432. Northshore says most testers send the paperwork to the district for you; keep a copy of your report.

Contact for questions

Full program details on Northshore Utility District's site: Northshore Utility District — Backflow Program ↗

How to book a certified tester through Northwest Clear

Northwest Clear connects you with Washington-certified Backflow Assembly Testers (BATs). Book online in a few minutes and we send your job to certified testers who serve your area.

Schedule Backflow Test

Cities served by Northshore Utility District

Properties in these cities may be under Northshore Utility District's compliance program — but confirm against your specific notice, since some cities are split across multiple purveyors.

Notes

Assemblies are tested when installed and every year after. For irrigation systems, Northshore says capping or physically disconnecting the system is the only way to be exempt.

About this page

This is an unofficial guide compiled from public sources. Regulatory basis: WAC 246-290-490. Always confirm details against your official notice from Northshore Utility District.

Sources: source 1 · source 2 · source 3