Wastewater Operator’s Guide to Preparing for the Certification Examination (WEF) (Levels 1-4)

The Wastewater Operator’s Guide to Preparing for the Certification Examination was prepared jointly by the Water Environment Federation, the Association of Boards of Certification (ABC), and the Certification Commission for Environmental Professionals (C2EP). It outlines what you can expect from the exam, provides key formulas, and lets you test your skills with sample questions. Use the book to study on the go, and then when you get home, take an online practice quiz (complete with a timer). Explore the interactive quizzes, which offer immediate feedback after each answer is chosen.

The approximately 200 questions included in this guide have been chosen to sample as many different aspects of a wastewater operator’s job responsibilities as possible. Questions in the study guide are intended to provide an example of style and possible topics for certification exam questions.