Free ABC Class II Water Treatment Exam Prep
ABC Water Treatment Operator Class II Certification Exam
Prepare for the ABC Class II Water Treatment exam without spending hundreds on expensive prep courses. Free study guides, practice questions, flashcards, and related exam resources.
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Free ABC Class II Water Treatment Prep Tools
100 Practice Questions
ABC-focused Class II questions on coagulation chemistry, filtration, CT disinfection, DBPs, softening, and operator math
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Get contextual hints and wrong-answer explanations powered by AI
2026 Updated
Reflects current SDWA rules including LT2ESWTR, Stage 2 D/DBP, and LCRR lead and copper revisions
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All 100 practice questions are free — no account required
What You'll Study
21 chapters covering the exam topics in this guide
Chapter 1: Source Water Quality & Characteristics
5 sections
Chapter 2: Coagulation & Rapid Mixing
4 sections
Chapter 3: Flocculation & Sedimentation
3 sections
Chapter 4: Granular Media Filtration
4 sections
Chapter 5: Membrane Filtration & Advanced Separation
3 sections
Chapter 6: Softening, Demineralization & Special Treatment
4 sections
Chapter 7: Chlorination & Alternative Disinfection
3 sections
Chapter 8: CT Disinfection Compliance & Disinfection Byproducts
3 sections
Chapter 9: Corrosion Control, Fluoridation & Plant Residuals
3 sections
Chapter 10: Pumps & Hydraulic Machinery
4 sections
Chapter 11: Motors, Electrical Systems & Instrumentation
3 sections
Chapter 12: Chemical Feed Equipment & Piping Systems
5 sections
Chapter 13: Physical & Chemical Water Quality Testing
4 sections
Chapter 14: Microbiological Analysis & Laboratory Quality Control
3 sections
Chapter 15: Chemical Safety & Hazardous Materials
3 sections
Chapter 16: Plant Safety, Confined Space & Electrical Hazards
3 sections
Chapter 17: Regulations, Compliance & Administrative Operations
5 sections
Chapter 18: Flow, Volume, Detention Time & Velocity Calculations
3 sections
Chapter 19: Chemical Dosage & Feed Rate Calculations
3 sections
Chapter 20: Clarification, Filtration & Disinfection Math
3 sections
Chapter 21: Pump, Power & Hydraulic Pressure Calculations
3 sections
ABC Class II Water Treatment Exam Details
ABC Water Treatment Operator Class II Certification Exam
Administered by Association of Boards of Certification (ABC) / Water Professionals International (WPI)
What's Included
21 Chapters
Complete exam coverage
Practice Quizzes
With detailed explanations
Free to Start
No credit card required
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ABC Class II Water Treatment Exam FAQ
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