ABC Need-To-Know Criteria Water Distribution Operator Class I

 This ABC guide was created to help trainers, supervisors and operators determine what topics to review while studying for operator certification exams. The guide breaks each exam into numerous topics and indicates the level of knowledge required for the exam.

Ontario is the only jurisdiction which has both Water Distribution (WD) and Water Distribution and Supply (WDS). The ABC Need-to-know guides and the study material will refer to what we call Water Distribution and Supply as Water Distribution.