Class IV Exams The exam is an open book, multiple choice exam. It consists of 60 questions. Recommended references to bring: The Waterworks Regulations (Nov. 1995), the Alabama Manual (post 1997), and the CSU (Sacramento) Manuals Small Water Systems Operations and Maintenance, and Water Distribution System Operation and Maintenance.
Class IV Content Areas
- Activated carbon adsorption
- Iron and manganese sequestration/removal
- Evaluate bacteriological characteristics of source water
- Evaluate biological characteristics of source water
- Evaluate chemical characteristics of source water
- Evaluate physical characteristics of source water
- Collect carbon dioxide samples and interpret analysis
- Collect chlorine demand samples and interpret analysis
- Collect chlorine residual samples and interpret analysis
- Collect disinfectant by-products samples and interpret analysis
- Collect hardness samples and interpret analysis
- Collect iron/manganese samples and interpret analysis
- Collect lead/copper samples and interpret analysis
- Collect microbiological samples and interpret analysis
- Collect nitrate samples and interpret analysis
- Collect pH samples and interpret analysis
- Collect temperature samples and interpret analysis
- Perform chlorine demand analysis
- Perform chlorine residual analysis
- Perform hardness analysis
- Perform iron/manganese analysis
- Perform turbidity analysis
- Operate electronic testing equipment
- Operate prime movers/drives (engines and motors)
- Inspect equipment for abnormal conditions
- Maintain backflow preventers
- Maintain chemical feeders
- Maintain electrical equipment
- Maintain mechanical equipment
- Maintain prime movers/drives (engines and motors)
- Personal protective equipment
- Traffic control procedures
- Trenching and shoring safety
- Administer compliance, emergency preparedness and safety program
- Administer facility security program
- Administer quality control program
- Develop operation and maintenance plan
- Plan and organize work activities
- Write regulatory authority reports
Domain and Number of Exam Questions
Monitor, Evaluate and Adjust Treatment Processes & System: 18
Collect Samples and Interpret Analysis: 7
Perform Plant Process and Control Laboratory Analysis: 6
Evaluate Characteristics of Source Water: 3
Operate Equipment: 5
Evaluate and Maintain Equipment: 8
Perform Security, Safety and Administrative Procedures:13
Total Number of Items: 60
Source: Board for Waterworks and Wastewater Works Operators: Waterworks Operator Job Analysis, Class IV
Exam Content Area
