Mukilteo · Snohomish County
Backflow testing in Mukilteo
Mukilteo Water & Wastewater District runs the backflow program for most of Mukilteo. It keeps its own list of certified testers and its own test report form. We use the District’s form and submit it for you.
Mukilteo W&WD program
How Mukilteo’s backflow program works
The short version, summarized from the utility’s own cross-connection control materials.
Source: Mukilteo Water & Wastewater District · verified October 2026 ↗The District maintains a backflow and cross-connection program with a published tester list and test report form.
State law requires every assembly to be tested at installation, after repair and annually by a certified tester.
Harbour Pointe’s business parks and Paine Field–area employers carry many commercial assemblies.
Report submission
We complete the District’s backflow test form and submit it through the District’s system.
Questions for the utility: (425) 355-3355
On the ground
What we see in Mukilteo
Every city’s housing stock and commercial mix shapes what’s in the meter box.
Harbour Pointe business parks
Aerospace suppliers and light manufacturing near Paine Field carry high-hazard RPs and fire-line detector assemblies. We schedule around production.
Neighborhoods
Serving all of Mukilteo
Some Mukilteo-area addresses are served by Alderwood Water & Wastewater District.
- Old Town
- Mukilteo waterfront
- Harbour Pointe
- Olympic View
- Chennault Beach
- Picnic Point
FAQ
Mukilteo backflow questions
01 Who can test my backflow assembly in Mukilteo?
02 How do backflow test reports get submitted to Mukilteo W&WD?
03 How much does backflow testing cost in Mukilteo?
04 What if my assembly fails in Mukilteo?
Field test report · next due
Mukilteo 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.