WASTEWATER TREATMENT OPERATOR CERTIFICATION PRACTICE EXAMS 2026–2027 STUDY GUIDE: Master the ABC & State Exams with Expert Content, Process Control Math, and Realistic Test Scenarios
Ashley, Martin McDonough
$9.99
AmazonABC Wastewater Treatment Operator Class II Books: Study Guides and Practice Tests
Compare 6 ABC Wastewater Treatment Operator Class II books for ABC Wastewater Treatment Operator Class II, including Amazon study guides, review books, and practice test books. Exam context: Administrator: Association of Boards of Certification (ABC) / Water Professionals International (WPI), Questions: 100, Time limit: 180 minutes. Then continue with free OpenExamPrep resources.
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About the ABC Wastewater Treatment Operator Class II exam
These book links are mapped to the exact exam ID. Use the exam facts below to confirm you are looking at resources for the right test.
- Administrator
- Association of Boards of Certification (ABC) / Water Professionals International (WPI)
- Questions
- 100
- Time limit
- 180 minutes
- Passing score
- 70%
- Exam fee
- Approximately $69 WPI exam sitting fee plus state application fees
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Books
ABC Wastewater Treatment Operator Class II books on Amazon
These are affiliate links to Amazon product pages. Use the matching OpenExamPrep practice and study resources before or after reading.
Wastewater Treatment Fundamentals II-- Solids Handling and Support Systems Operator Certification Study Questions
Federation, Water Environment
$113.99
Amazon
Wastewater Operator Study Guide: Mastering Your Wastewater Treatment Operator Certification Exams with Practice Questions and Explanatory Answers.
Selman, Greg
$5.00
Amazon
WEF/ABC/C2EP Wastewater Operators' Guide to Preparing for the Certification Examination
Water Environment Federation
$1,399.99
Amazon
The Wastewater Operator's Guide to Preparing for the Certification Examination
Water Environment Federation, Association of Boards of Certification, C2ep
$77.08
Amazon
Wastewater Treatment Fundamentals I―Liquid Treatment Operator Certification Study Questions
Water Environment Federation
$102.99
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ABC Wastewater Treatment Operator Class II books FAQ
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Use books for structured review, then use the related free practice questions, study guides, flashcards, videos, cheat sheets, and articles to test recall and close weak areas.