Are you preparing for upcoming water/wastewater examinations? Recommended study materials are available through the Ontario Water and Wastewater Certification Office (OWWCO) Bookstore.
Could You Pass the Water Operator-in-Training Exam?
Examination study guide bookstore
Additional resources have been provided below and are examples intended to help operators practice questions they may see on exams. They will not replace the appropriate training and experience an operator should have. These resources will not completely cover all exam subject areas.
Visit our online library’s main webpage to find more resources on topics related to drinking water.
Formula and Conversion Tables
Basic Water and Wastewater Formulas
Practice Quizzes
5 Common Questions on Water Treatment Operator Certification Exam
Sample Exam Questions and Recommended References for ABC’s Very Small Water System Exam
Sample Exam Questions for ABCs Computerized Exams
Water Plant Operator Training Program – Operator-in-Training
Water Plant Operator Training Program – Class 1 Certification
Operator-in-Training Practice Quiz 1
Operator-in-Training Practice Quiz 2
Operator-in-Training Practice Quiz 3
Test Your Knowledge of Centrifugal Pumps – Certification Quiz
Wastewater Treatment Operator Certification Exam – 4 Practice Problems
Water Distribution Class 1 – Install Units Quiz
Water Distribution Class 1 – Monitor Water Quality Quiz
Water Distribution Class 1 – Operate and Maintain Equipment Quiz
Water Distribution Class 1 – Perform Administrative Duties Quiz
Water Distribution Class 1 – Safety Quiz
Water Distribution Class 1 – System Design Quiz
Water Distribution Operator Certification Exam – 4 Practice Problems
Water Treatment Class 1 – Evaluate and Maintain Equipment Quiz
Water Treatment Class 1 – Evaluate Characteristics of Source Water Quiz
Water Treatment Class 1 – Laboratory Analysis Quiz
Water Treatment Class 1 – Monitor, Evaluate and Adjust Treatment Processes Quiz
Water Treatment Class 1 – Operate Equipment Quiz
Water Treatment Class 1 – Perform Administrative Duties Quiz
Water Treatment Class 1 – Safety and Emergency Preparedness Quiz
Flow Rate and Detention Time Question 1
Water Math
Best Way to Disinfect Water (Using CT Values)
Can You Solve This Chemical Dosing Problem?
Chemical Dosing Math Problem – Example 1
Chemical Dosing Math Problem – Example 2
Chemical Dosing Math Problem – Example 3
Chlorine Contact Time Calculations
Geometry Math – Example 1 Cylinder (Pipe)
Geometry Math – Example 1 Cylinder (Tank)
Geometry Math – Example 1 Rectangle (Tank)
Geometry Math – Example 2 Cylinder (Tank)
Geometry Math – Example 2 Rectangle (Tank)
How to Calculate Chemical Feed Rate
How to Calculate Chlorine Dosage at a Water Treatment Plant
How to calculate detention time
Log Removal: Water Treatment Practice Problems
Operator-in-Training Math Practice Quiz 1
Operator-in-Training Math Practice Quiz 2
Operator-in-Training Math Practice Quiz 3
Operator-in-Training Math Practice Quiz 4
Operator-in-Training Math Practice Quiz 5
Operator-in-Training Math Practice Quiz 6
Operator-in-Training Math Practice Quiz 7
Operator-in-Training Math Practice Quiz 8
Operator-in-Training Math Practice Quiz 9
Operator-in-Training Math Practice Quiz 10
Operator-in-Training Math Practice Quiz 11
Operator-in-Training Math Practice Quiz 12
Problem Solved: Calculating Tank Volume – Water Treatment, Distribution System and Wastewater Math
Problem Solved: Calculating Trench Volume – Distribution System Math
Problem Solved: Calculating Volume Removed – Distribution System Math
Problem Solved: Chemical Dose with Chlorine Tablets – Water Treatment Math
Problem Solved: Chemical Per Day Formula – Distribution System Math
Problem Solved: Chlorine Demand – Distribution System Math
Problem Solved: Chlorine Dose – Water Treatment
Problem Solved: Chlorine Per Day – Distribution Math
Problem Solved: Detention Time – Water Treatment
Problem Solved: Flow Rate Formula – Water Treatment, Distribution and Wastewater Math
Problem Solved: Chemical Blending – Water Treatment
Problem Solved: Chemical Solutions – Water Treatment
Water Math Bonus – Specific Capacity & Detention Time
Water Math Bonus – Surface Loading Rate & Unit Filter Run Volume
Water Math: Calculating Water Level – Texas Class B
Water Math: Calculate Volume in Gallons – Texas Class D
Water Math: Chlorine Demand – Texas Class C
Water Math: Chlorine Demand – Texas Class D
Water Math: Chlorine Dosage (lbs per day) – Texas Class D
Water Math: Chlorine Dosage – Texas Class D
Water Math: Dirt Removal – Texas Class C
Water Math: Feet of Head – Texas Class C
Water Math: Feet of Head – Texas Class D
Water Math: Gallons to Tons Conversion – Texas Class C
Water Math: GPD to MGD – Texas Class C
Water Math: GPM to MGD – Texas Class D
Water Math: Meter Calculations – Texas Class C
Water Math: MGD Flow from Multiple Wells – Texas Class B
Water Math: MGD to GPM – Texas Class C
Water Math: MGD to GPM – Texas Class D
Water Math: Pipe Volume Calculation – Texas Class C
Water Math: Sections of Pipe Required – Texas Class D
Water Math: Static Water Level – Texas Class B
Water Math: Stock Solution – Texas Class B
Water Math – Tank Capacity – Texas Class C
Water Math: Well Drawdown – Texas Class C
Water Math: Well Drawdown – Texas Class D
Water Math: Well Production – Texas Class C
WSO Water Treatment Grade 1: Operator Math 1, Ch. 2
WSO Water Treatment Grade 2: Operator Math: Volume Measurement, Ch. 2
Wastewater Math
California Grade 1 Wastewater Math
California Grade 2 Wastewater Math
California Grade 3 Wastewater Math
California Grade 4 & 5 Wastewater Math
Digester Loading Rate Calculation
How to Calculate F-M Ratio – Wastewater Math
How to Calculate Organic Loading into a Pond – Wastewater Math
How-to Use Excel for Calculations and Conversions for Wastewater Math – Wastewater Dan videos
Intro to Velocity Calculations and Hydraulic Retention Time – Part 1
Intro to Velocity Calculations and Hydraulic Retention Time – Part 2
Intro to Velocity Calculations and Hydraulic Retention Time – Part 3
Intro to Velocity Calculations and Hydraulic Retention Time – Part 4
Intro to Velocity Calculations and Hydraulic Retention Time – Part 5
Intro to Velocity Calculations and Hydraulic Retention Time – Part 6
Problem Solved: BOD – Wastewater Math
Problem Solved: BOD Removal Efficiency – Wastewater Math
Problem Solved: Calculating Tank Volume – Water Treatment, Distribution System and Wastewater Math
Problem Solved: Calculating VS Pumped to a Digester – Wastewater Math
Problem Solved: Chlorinator Feed Rate – Wastewater Math
Problem Solved: DAF Solid Loading Rate – Wastewater Math
Problem Solved: Detention Time – Wastewater Math
Problem Solved: Energy Savings Due to Pump Efficiency – Wastewater Math
Problem Solved: Flow Rate Formula – Water Treatment, Distribution and Wastewater Math
Problem Solved: Flow Rate (Gr. 1) – Wastewater Math
Problem Solved: Flow Rate (Gr. 3) – Wastewater Math
Problem Solved: Grit Removal Rate – Wastewater Math
Problem Solved: Heat Value BTUs – Wastewater Math
Problem Solved: MCRT – Wastewater Math
Problem Solved: MLSS – Wastewater Math
Problem Solved: Organic Loading – Wastewater Math
Problem Solved: Oxygen Transfer to Water – Wastewater Math
Problem Solved: Percent Solids Recovery – Wastewater Math
Problem Solved: Pond Hydraulic Loading – Wastewater Math
Problem Solved: Price Per Day Calculation – Wastewater Math
Problem Solved: Pump Discharge Rate – Wastewater Math
Problem Solved: Suspended Solid Weight Per Day – Wastewater Math
Problem Solved: Volatile Solids Reduction – Wastewater Math
Problem Solved: Volume – Wastewater Math
Pump Run Time to Reduce Mixed Liquor Suspended Solids (MLSS) Calculation
Solids Retention Time: Wastewater Treatment Practice Problems
Volatile Suspended Solids Loading Rate to Anaerobic Digester Calculation
Wastewater Calculations – Problem of the Day
Theory
Backflow, Backpressure and Backsiphonage
Disinfection Breakpoint Chlorination
Project Management: Mission and Vision
Project Management: Planning the Project
Project Management: Steps in Managing a Project
Project Management: The Role of a Project Manager
Project Management: Work Breakdown Structure
Reduced Pressure Zone (RPZ) Valve – Backflow Prevention
Wastewater Collection: Method of Conveyance
Wastewater Treatment: Data and Records
Wastewater Treatment: Flow Equalization
Wastewater Treatment: Odour Control Methods
Wastewater Treatment: Preliminary Treatment
Wastewater Treatment: Grit Removal
Water Collection System: Design, Layout and System Capacity
Water Collection System: Low Pressure System Components
Water Collection System: System Components
Water Distribution: Backflow Prevention
Water Distribution: Cross Connection Control
Water Distribution: Fire Hydrant Parts and Classification
Water Distribution: Hydrant Installation and Types of Fire Hydrants
Water Distribution: Pipe Joints
Water Distribution: Pipe Material
Water Distribution: System Design and Layout
Water Distribution: Valve Modes of Operation
Water Distribution: Valve Types
Water Treatment: Chemical Feed Equipment and Flash Mixing
Water Treatment: Coagulant Aids
Water Treatment: Coagulation Chemistry Basics
Water Treatment: Coagulation Flocculation Basics
Water Treatment: Coagulation Process Operation and Jar Testing
Water Treatment: Flocculation Process Operation
Water Treatment: Well Construction
Water Utility Management: Project Management
View these similar posts on the WCWC online library for more information.
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