Certified water operators are a crucial part of providing an adequate and safe supply of water. Water Supply Operations (WSO) materials are the most relevant and up-to-date training materials for operators who are trying to pass their certification exams. The WSO brand focuses on providing a variety of learning materials because we know that everyone learns differently. Study with a WSO guidebook, video, mobile app – whatever works best for you!
All WSO materials are created and approved by water industry experts.
WSO books and resources are cost-effective for operators and trainers.
WSO meet the latest Association of Boards (ABC) Need-to-Know Criteria.
Resources are organized by subject and grade level to focus your studying.
The WSO set of guidebooks cover different grade levels for treatment and distribution. They offer training on fundamental practices and principles that all operators need to do their job.
Certification Exam Prep book offers 1,400-plus, expert-vetted practice questions and answers so that you practice your test-taking skills and make sure you are ready to pass the exam.
Certification Exam Prep book offers 500-plus, expert-vetted practice questions and answers so that you practice your test-taking skills and make sure you are ready to pass the exam.
Study wherever it is most convenient for you. With 2,000-plus questions, you can sort by subject, track your progress, and more. Question sets are available individually.
Utilize WSO in your lesson plans to ensure your students are utilizing the most current and up-to-date certification preparation materials available.
Focused on Experience. Each book is divided into certification levels.
Affordable. Books available individually at affordable prices.
Helpful. Meet need-to-know criteria used in state certification exams.
Color Illustrations. Many diagrams in color to enhance understanding
Multimedia Enhanced. Includes available online video learning modules.
One-Stop Resource. Math and chemistry combined into one book.
Reinforced Learning. Questions are included at the end of each chapter.
Catered to Different Learning Styles. Free access to online video supplements to show hands-on applications.
Affordable. We offer volume discounts for teachers and trainers.
Contact us to get a free desk copy for review or to inquire about volume discounts on bulk purchasers for your class.
WSO guidebooks include free access to essential video clips that help further your knowledge.
WSO streaming channel offers comprehensive and engaging videos on topics that are essential for operators to understand.