WSO Water Treatment, Grades 1, 2, 3, and 4
AWWA’s Water System Operations (WSO) series is the leading operator certification training, aligned with current Association of Boards of Certification (ABC) Need-to-Know criteria and offering training based on experience and certification level.
The WSO Water Treatment Series includes all three WSO Water Treatment Books: Grade 1, Grade 2 and Grades 3 & 4.
To reinforce learning, the books includes full-color illustrations and links to video clips, as well as questions at the end of each chapter.
- Developed in accordance with the latest ABC criteria
- Focuses on specific experience and certification level
- Includes additional study questions at the end of each chapter
- Access to more than 100 videos for additional learning is included