Edmonds · Snohomish County
Backflow testing in Edmonds
The City of Edmonds distributes water to more than 10,000 accounts, supplied through Alderwood Water & Wastewater District from Everett’s Spada Lake. The City runs its own cross-connection program under Edmonds City Code chapter 7.20.
City of Edmonds program
How Edmonds’s backflow program works
The short version, summarized from the utility’s own cross-connection control materials.
Source: City of Edmonds Water Utility · verified October 2026 ↗Edmonds’ cross-connection control rules are in Edmonds City Code chapter 7.20.
The City’s water comes from the Sultan River / Spada Reservoir via Everett and Alderwood Water & Wastewater District.
State law requires annual testing of every backflow assembly by a certified tester.
Report submission
We submit your test report to the City of Edmonds (or to your district, if a district serves your address).
Questions for the utility: (425) 771-0235
On the ground
What we see in Edmonds
Every city’s housing stock and commercial mix shapes what’s in the meter box.
Highway 99 corridor
Restaurants, auto shops, medical offices and new multifamily along Highway 99 carry RP premises isolation and fire-line assemblies.
Neighborhoods
Serving all of Edmonds
Parts of south and east Edmonds are served by Olympic View Water & Sewer District or Alderwood Water & Wastewater District directly.
- Downtown (“the Bowl”)
- Five Corners
- Perrinville
- Westgate
- Seaview
- Esperance
- Highway 99
- Meadowdale
- Lake Ballinger
FAQ
Edmonds backflow questions
01 Who can test my backflow assembly in Edmonds?
02 How do backflow test reports get submitted to City of Edmonds?
03 How much does backflow testing cost in Edmonds?
04 What if my assembly fails in Edmonds?
Field test report · next due
Edmonds test due? We’ll handle it.
Book online in two minutes. We test, repair if needed, and file the report with your water utility — and remind you next year.