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Use the book to study on the go
and monitoring and recording requirements
and then when you get home
Class 3 & 4
Sample questions and answers for both water treatment
Operator-in-Training (OIT) Examination Study Guide (OMWA/MECP) WWC Use the book to studyCovers all 4 examination categories 2018 Revised Edition This study guide provides background information to help you prepare to become a certifies operator by laying a solid foundation of important concepts that will aid you in the Operator in Training (OIT) examination for: Water Treatment (WT), Water Distribution Water Distribution and Supply (WD WDS), Wastewater Treatment (WWT) and Wastewater Collection (WWC). This guide is meant to familiarize
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