Water Treatment Operator Level Two – September 2025

September 8 - October 10, 2025

This course offers a comprehensive discussion of water treatment processes, their uses, characteristics, and calculations. It is designed to teach the skills and knowledge that you will need to know as a Level 2 operator. Learn concepts and practices about conventional water treatment processes, membrane/UV processes, and basic laboratory and sampling skills. WTO Level 2 provides an in-depth understanding of surface water treatment, groundwater treatment, and the particular parameters that dictate the successful treatment of both sources.

This course builds upon your learning from the Level 1 course by focusing on analysis and problem–solving for conventional treatment processes, as well as introducing concepts for advanced treatment processes. Consider taking Water Treatment Operator Level 1 before this course if you have not already.

This course takes into consideration the Water Professionals International (formerly ABC) Need-to-Know Criteria for water treatment operators.

This course includes prerecorded presentations, online learning activities, videos, quizzes, discussion boards, weekly tests, and homework assignments.

Requirements: A minimum of 12-18 hours per week of online learning activities, for five consecutive weeks. This is an estimation and will be different for each learner. Ability to perform basic math calculations High school education Access to a computer - the course is not formatted for mobile devices.

Please be sure you can commit to the course requirements prior to registering. AWWA eLearning courses, including WTO, are non-refundable.