ALERT: All Ecology offices are closed to walk-in service through at least May 4. For more information please visit our COVID-19 response page. See also the Washington state COVID-19 page.
Wastewater treatment plants (WWTPs) serve an essential function to protect public health and the environment, including Washington's rivers, lakes, streams, and Puget Sound. The certification of wastewater treatment plant operators helps ensure they are knowledgeable and that WWTPs are properly operated and maintained.
Questions opcert@ecy.wa.gov 1-800-633-6193, Option 1 Poppy Carre Operator Certification Program Coordinator poppy.carre@ecy.wa.gov 360-407-6449 Vacant Operator Certification Program Assistant