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The guide explains how the standardized exam is built from essential competencies identified through international research and organizes them into content areas. 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A methodical and comprehensive international investigation was conducted to determine the most significant job tasks performed by wastewater collection operators. The content covered on the exam represents the job tasks identified through this research as essential operator competencies, and isnot limited to the practices of your system/facility. The following pages organize these job tasks into Content Areas and identify the amount of the test devoted to each area.  \nIs this Need-to-Know Criteria relevant to MY exam?  \nWPI offers a variety of standardized and customized exam services. This document is reflective only of the Standardized Wastewater Collection Operator Class III exam; older editions of the standardized exam and various customized exams are also administered by various certification programs. Please contact your certifying authority to determine whether they have implemented this exam for your program.  \nPre-Test Questions  \nYour exam may include up to 10 extra questions that have not been used on previous versions of the exam. These are known as “pre-test” questions and allow WPIto gather valuable data about the new questions before they are included in future tests. Pre-test questions are unidentified and scattered  \nthroughout the exam so you will answer them with the same care in which you address scored questions. The pre-test questions are not included in your final score.  \nExam Preparation Resources  \nVisit [gowpi.org](gowpi.org) to access the Formula/Conversion Table administered with this exam, a list of approved references, information on purchasing study guides available from partner organizations, and more.  \nCopyright Notice  \nAll examination questions are the copyrighted property ofWPI. It is forbidden under federal copyright law to copy, reproduce, record, distribute, or display these examination questions by any means, in whole or in part, without written permission from WPI. Doing so may subject violators to severe civil and criminal penalties.  \nCopyright 2025, by Water Professionals International. All rights reserved. No part of this publication maybe reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system without written permission from the publisher.  \nWastewater Collection Operator Class III Certification Exam  \n2  \nWastewater Collection Operator Class III | Need-to-Know Criteria  \nExam Content  \nThe Wastewater Collection Operator Class III exam will test you on essential job tasks. These job tasks have been categorized into the Content Areas detailed in the following pages. The table displayed on Page 4 of this document summarizes the areas that are included on the exam, the number of test questions in each of these areas, the cognitive format of the test questions, and number of calculation questions in each area.  \nJust as operator job duties vary in their complexity, so will the questions you are asked on the exam. Some will be simpler, whereas others will be more complex or cognitively demanding. The following two cognitive levels are used to describe the format of the questions you will encounter on this exam:  \nRecall – Tasks at this cognitive level typically require the simple recall or recognition of specific facts, concepts, processes, or procedures, with little to no problem-solving involved. You may be asked to identify, illustrate","cbCaieMLS5cAdQqS","https://ap.wps.com/l/cbCaieMLS5cAdQqS","pdf",428235,13,"English","# Need-to-Know Criteria Overview\n## Purpose and scope of the guide\n## Relevance to the exam\n# Pre-Test Questions\n## What pre-test questions are\n# Exam Preparation Resources\n## Study resources and references\n# Exam Content\n## Content areas and question distribution\n## Cognitive formats: Recall and Application\n## Calculation units: US Standard and Metric","[{\"question\":\"What is the purpose of the Wastewater Collection Operator Class III Need-to-Know Criteria guide?\",\"answer\":\"It helps operators understand what job tasks are covered on the standardized Class III exam by organizing essential competencies into content areas.\"},{\"question\":\"How do Recall and Application cognitive levels differ on the exam?\",\"answer\":\"Recall items focus on recognizing or recalling specific facts and procedures with little problem-solving, while Application items require basic problem-solving, calculations, and interpretation of data.\"},{\"question\":\"Do pre-test questions count toward the final exam score?\",\"answer\":\"No. Pre-test questions are unscored and included to gather data for future test forms.\"}]","Wastewater Collection Operator Class III - Need-to-Know Criteria | PDF",1790746989,33]