AWWA members benefit from professional growth, the acquisition of new skills, exposure to the water industry, and enhanced technical knowledge.
Learn more about AWWA's Conferences, Events and Distance Learning opportunities.
SourceBook is AWWA’s official resource guide to water industry products and services.
AWWA's infrastructure financing report, Buried No Longer, is a call to action for utilities, consumers and policy-makers.
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.
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.
Grades 3 & 4
Grades 1 & 2
Email Me When Avail.
Grades 3 & 4
Email Me When Avail.
WSO Water Treatment Set
WSO Water Distribution Set
WSO Water Treatment & Distribution Set
See what has changed from the previous guides with chapter-to-chapter content maps:
If you are considering adopting these books for your courses and would like to see a review copy, please contact email@example.com
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.
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
We will have a limited number of the old WSO Water Treatment and Water Transmission books available through fall 2016 semester.
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.
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.
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: Coagulation, Flocculation and Sedimentation
WSO: Disinfection By-products
WSO: Flushing and Cleaning
WSO: Instrumentation & Control
WSO: Jar Testing
WSO: Maintaining Distribution & Storage Systems
WSO: Membrane Technology
WSO: Source Water Protection
WSO: Turbidity Measurement and Particle Counting
WSO: Water Loss Control
WSO: Water Sources
Save 20% off individual prices when you order the complete set of 14 videos in the WSO DVD series.