Backflow Devices & Connection Devices
You may not be aware that under certain conditions, water from irrigation systems, hot tubs, and other fixtures can force its way back into the main water supply, contaminating the public water. This occurs if there is a “cross connection” between the public water system and any liquid that could contaminate the water system and the contaminated liquid “backflows” into the drinking water. The way to prevent a cross connection is to install an effective backflow device. Backflow devices are mandated by both State and local law (WAC 246-290-490 and Mercer Island Ordinance A-38) on all irrigation systems, boilers and fire systems. A permit and inspection is also required for all new installations. As an added precaution, State and local law requires yearly testing of all new and existing backflow prevention devices by a State-certified backflow tester.
Mercer Island Backflow Program
Mercer Island keeps a database of the water or irrigation systems that have backflow devices. We follow the State law by sending out an annual letter requesting an inspection of the backflow device. Yearly inspections by a State certified backflow tester are required by State law. A list of certified testers is included below for your reference.
State Certified Backflow Assembly Testers
This list was complied for your convenience, these businesses all have a City of Mercer Island Business Licenses.
|
Name of Business |
Phone Number |
|
1st American Backflow |
425-466-0703 |
|
1st Choice Testing |
425-273-3106 |
|
$35 Backflow Testing |
206-369-6178 |
|
AACRA Backflow Assembly Testing |
425-334-4507 |
|
ABC Water Specialty, Inc. |
425-355-9826 |
|
Advance Backflow Testing |
425-276-5255 |
|
Advanced Irrigation |
206-467-6419 |
|
Affordable Backflow Testing |
206-369-6178 |
|
Always Testing |
425-672-4345 |
|
Aqua Containment Co. Inc. |
425-392-1523 |
|
Aqua Tech Services |
425-481-2919 |
|
Aquasense |
425-881-8600 |
|
Archer Construction, Inc. |
253-872-7277 |
|
Auburn Mechanical |
253-838-9780 |
|
Available Backflow Testers |
425-652-9970 |
|
Backflow Northwest LLC |
425-277-2888 |
|
Backflow Service and Testing Service |
425-334-3350 |
|
BATman Testing |
206-228-1618 |
|
Blake Plumbing |
425-531-0805 |
|
Certified Backflow Testing, Inc. |
206-601-5550 |
|
Columbia Fire |
206-232-8569 |
|
Dennis McLauglin’s Backflow Service |
206-364-9531 |
|
French Landscape Irrigation |
425-745-8898 |
|
French Touch Yard Services |
206-236-2264 |
|
GS Backflow, LLC |
425-681-4048 |
|
Haagen’s H20 Designs |
425-483-2684 |
|
Highridge Irrigation Inc |
425-391-7779 |
|
Hubert Landscaping Service |
206-232-4361 |
|
Infinity Fire Protection |
425-793-8788 |
|
Irrigation Service & Design |
425-867-0409 |
|
Malone’s Landscape & Nursery |
888-837-1938 |
|
McKinstry Company |
206-762-5900 |
|
Mis’ter Rain |
425-454-1190 |
|
Northern Waters Irrigation & Landscape |
425-672-9242 |
|
Pacific Landscaping, Inc. |
206-522-1830 |
|
Patriot Fire Protection |
253-926-2290 |
|
Paul R. Gockel Jr. Construction |
425-641-4059 |
|
P.L.E Backflow Testing |
253-297-4387 |
|
R.A. Brown Backflow Testing |
425-821-6801 |
|
Redwood Backflow |
425-495-1939 |
|
Rodriguez Company |
425-765-6231 |
|
Sound View Landscape |
425-487-2180 |
|
The Plumbing Joint |
425-453-9006 |
|
The Safety Team |
206-762-1450 |
|
Turfco Services |
206-634-2461 |
Please ask the tester to send the results to:
City of Mercer Island
Re: Backflow
9611 SE 36th ST
Mercer Island, WA. 9804
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