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.
Drawing by James Davis
1-800-633-6193, Option 1
Operator Certification Program Coordinator
Operator Certification Program Assistant