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Sample questions and answers for both water treatment
operator math and chemistry
treatment plant safety
This study guide was developed by AWWA in cooperation with the Association of Boards of Certification (ABC)
hydrants and valves
Water System Operations (WSO) Distribution 3 & 4 (AWWA) WWC Sample questions and answers forWSO Water Distribution, Class 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 Class 3 or 4 exam is included in this book. To
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