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.

WSO Water Distribution, Grades 3 & 4, is organized into 13 chapters addressing core test content on certification exams. Chapters discuss regulations, operator math and chemistry, and specific distribution processes in detail. Other chapters cover water use and system design, water mains, hydrants and valves, water system supply security and public relations. Everything you need to know to pass your Grade 3 or 4 exam is included in this book.

To reinforce learning, the book includes full-color illustrations and links to video clips, as well as questions at the end of each chapter.

Key Features:

• Developed in accordance with current ABC criteria
• Focused on specific experience and certification level
• Includes additional study questions at the end of each chapter
• Refers to more than 100 videos for additional training