Lakehaven Water & Sewer District — Backflow Testing Requirements Federal Way and nearby areas of south King County

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 Lakehaven Water & Sewer District's program, your tester sends the completed report to the utility.
• Deadline: By the due date on your notice.
• What happens if you miss it: Lakehaven's program page doesn't list penalties. Testing is required by state law (WAC 246-290-490); contact the district if you can't test by your due date.

How reports are submitted to Lakehaven Water & Sewer District

Lakehaven mails a notice before your due date with a blank Backflow Prevention Assembly Test Report form and a tester resource list. Completed results go to the district's Cross-Connection Control section by mail, email or in person, and the district's site also has an online form for submitting a test report.

Contact for questions

• Phone: (253) 946-5427
• Email: crossconnections@lakehavenwsd.gov
• Mailing address: Lakehaven Water & Sewer District, Cross-Connection Control, PO Box 4249, Federal Way, WA 98063-4249

Full program details on Lakehaven Water & Sewer District's site: Lakehaven Water & Sewer 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.

Cities served by Lakehaven Water & Sewer District

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

• Federal Way

Notes

Lakehaven runs a premises isolation program. Non-residential water services need an approved assembly right after the water meter. Residential properties need one for a separate fire or irrigation service, and for fire sprinklers or irrigation supplied by the domestic meter. Each assembly is tested by a Washington Department of Health certified tester when installed, annually, after any repair, and if it is relocated.

About this page

This is an unofficial guide compiled from public sources. Regulatory basis: Lakehaven Resolution 2012-1197 and Policy 400-05; WAC 246-290-490. Always confirm details against your official notice from Lakehaven Water & Sewer District.

Sources: source 1 · source 2