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FAQs

  1. What is a cross connection?
  2. What is Backflow?
  3. What are common examples of cross connection hazards (source of contamination) that need to be protected with a backflow preventer?
  4. Why is a backflow preventer necessary?
  5. What is the legal basis for a local cross connection control program?
  6. Do I currently have adequate backflow protection? And, how can I find out?
  7. What is my liability as a building owner property manager and water purveyor?
  8. What are types of backflow protection?
  9. How often do backflow assemblies have to be tested?
  10. Who can test the backflow assembly?
  11. What to do if my backflow assembly fails the annual test?
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Contact Us

  1. Street Address:
    17238 NE Woodinville-Duvall Road
    Woodinville, WA 98072

    Mailing Address:
    P.O. Box 1390
    Woodinville, WA 98072

    Phone: 425-487-4100

    Fax: 425-485-6381

    Email Customer Service

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