Wastewater Treatment Plant

Wastewater Operator Certification Program

Publications

Red Book - (Information Manual for Wastewater Treatment Plant Operators)

Download Application - Download or print the application for wastewater treatment plant operator.

Exam FAQ - Frequently Asked Questions: Wastewater Operator Certification Program Switches to Computer-based Testing.

Wastewater Certification Requirements - (WAC Chapter 173-230)

Operator Certification Program Policies - The following policies have been reviewed by the Wastewater Operator Certification Program Advisory Committee. The policies will be reviewed and updated as needed by Ecology and the Advisory Committee.