Water System Operations (WSO)

AWWA's WSO materials lead the industry in operator certification training.

  • WSO Book Series: Aligned with the Association of Boards of Certification (ABC) and focused on each certification level
  • WSO DVDs: Provide in-depth information on water quality treatment principles and practices
  • WSO Certification Study Guides: Offer additional practice and preparation for certification exams

Better for Operators & Students

Based on Certification Levels. Training is dependent upon experience; each book covers a specific level of experience.

More Affordable. Lower prices for each individual book plus you can buy only the level that you need

Made to Pass the Test. ABC Need-to-Know criteria is called out within the books

Enhanced content. Includes questions at the end of each chapter, video call-outs, full-color illustrations.

Made to Pass the Test

AWWA's WSO series is the only widely-used certification-training material that conforms to the latest Association of Boards of Certification (ABC) Need-to-Know criteria. For certification training to meet the highest standards and be applicable to the widest audience, it is crucial that materials be developed in accordance with the latest ABC criteria.

ABC administers the operator certification testing for most of North America.

 

 



For WSO Instructors

See what has changed from the previous guides with chapter-to-chapter content maps:

Request a Desk Copy

If you are considering adopting these books for your courses and would like to see a review copy, please contact distribution@awwa.org

Please provide the following information with your request: Your name, your school, course title, school mailing address, next start date, book requested for review, and expected enrollment.

 

FAQ About the NEW WSO Book Series

Which books are being updated?

 

WSO Water Treatment is now 3 books: WSO Water Treatment Grade 1, WSO Water Treatment Grade 2, WSO Water Treatment Grades 3 & 4

WSO Water Transmission and Distribution is now 2 books: WSO Water Grades 1 & 2, WSO Water Distribution Grades 3 & 4

Can I still get the old WSO books?

 

We will have a limited number of the old WSO Water Treatment and Water Transmission books available through fall 2016 semester.

What is the ABC Need-to-Know Criteria?

 

ABC determines the need-to-know criteria and creates the certification tests used in a majority of states. For certification training to meet the highest standards of currency and be applicable to the widest audience, it is crucial that materials be developed in accordance with the latest ABC criteria.

As of 2016, AWWA’s WSO series in the only widely-used certification training material that conforms to the latest ABC Need-to-Know criteria.

Where can I find the video clips listed in the books?


The clips from each book can be found here. Each book has a separate playlist on YouTube. If you would like to watch individual clips you can select them from the menu on the upper left-hand corner of the preview.


WSO Video Clips Included in the Book Series

Choose the video player for your book and click the menu logo in the upper left-hand corner to see and select from a list of the book's video clips.

WSO Water Treatment, Grade 1


WSO Water Treatment, Grade 2


WSO Water Treatment, Grades 3 & 4