Iowa
DNR Wastewater Treatment Grade I Need-to-Know
Establish
safety plans and apply safety procedures
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Plans and procedures include: |
Required
capabilities: |
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· Blood borne pathogens |
· Ability to assess likelihood of disaster occurring |
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· Chemical hazard communication |
· Ability to communicate safety hazards verbally |
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· Confined space entry |
and in writing |
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· Electrical grounding |
· Ability to demonstrate safe work habits |
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· First-aid |
· Ability to follow written procedures |
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· General safety and health |
· Ability to identify potential safety hazards |
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· Lifting |
· Ability to interpret Material Safety Data Sheets |
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· Lock-out/tag-out |
· Ability to recognize unsafe work conditions |
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· Personal hygiene |
· Ability to select and operate safety equipment |
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· Personal protective equipment |
· Knowledge of emergency plans |
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· Respiratory protection |
· Knowledge of personal protective equipment |
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· Slips, trips, and falls |
· Knowledge of potential causes and impact of disasters |
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· Spill response |
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Monitor,
evaluate, and adjust processes and collection systems
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Processes include: |
Required capabilities: |
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· Chemical addition |
· Ability to adjust chemical feed rates, flow patterns, and |
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· Clarifiers |
process units |
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· Disinfection |
· Ability to calculate dosage rates |
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· Pumping of main flow |
· Ability to confirm chemical strength |
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· Screens |
· Ability to evaluate, diagnose, and troubleshoot process |
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· Waste stabilization ponds |
units |
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· Ability to maintain processes in normal operating |
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· Sand filters |
conditions |
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· Septic tanks |
· Ability to measure and prepare chemicals |
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· Ability to perform basic math and process control |
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· Aerobic digesters |
calculations |
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· Anaerobic digesters |
· Knowledge of biological science |
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· Collection system: |
· Knowledge of general chemistry |
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-Identify source
of infiltration/inflow |
· Knowledge of general electrical principles |
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· Knowledge of mechanical principles |
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-Identify source
of blockage |
· Knowledge of normal chemical range |
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-Remove blockage |
· Knowledge of principles of measurement |
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-Repair broken
main |
· Knowledge of regulations |
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· Knowledge of wastewater treatment concepts and treatment processes |
Evaluate physical characteristics of wastestream
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Characteristics include: |
Required
capabilities: |
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· Color |
· Ability to discriminate between normal and |
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· Flow pattern |
abnormal conditions |
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· Foam |
· Knowledge of normal characteristics of wastewater |
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· Mixing pattern |
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· Odor |
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· Solids concentration |
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· Volume |
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Perform
and interpret laboratory analyses
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Analyses include: |
Required capabilities: |
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· 5-day biochemical oxygen demand |
· Ability to calibrate instruments |
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· Chlorine residual |
· Ability to follow written procedures |
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· Dissolved oxygen |
· Ability to interpret and transcribe date |
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· pH |
· Ability to perform laboratory calculations |
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· Settleable solids |
· Ability to recognize abnormal analytical results |
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· Temperature |
· Knowledge of biological science |
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· Total suspended solids |
· Knowledge of general chemistry |
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· Knowledge of laboratory equipment and procedures |
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· Knowledge of normal characteristics of wastewater |
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· Knowledge of principles of measurement |
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· Knowledge of quality control and assurance practices |
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Knowledge of sampling procedures |
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·
Knowledge of Standard Methods |
Operate
equipment
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Equipment includes: |
Required capabilities: |
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· Backflow prevention devices |
· Ability to adjust operation of equipment |
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· Blowers and compressors |
· Ability to evaluate operation of equipment |
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· Chemical feeders |
· Ability to monitor operation of equipment |
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· Computers |
· Knowledge of electrical and mechanical principles |
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· Drives |
· Knowledge of function of tools |
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· Electronic testing equipment |
· Knowledge of start-up and shut-down procedures |
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· Engines |
· Knowledge of wastewater treatment concepts |
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· Generators |
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· Heavy vehicles |
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· Instrumentation |
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· Motors |
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· Pumps |
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· Valves |
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Evaluate operation of equipment
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Tasks include: |
Required capabilities: |
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· Read meters |
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· Read charts |
· Ability to report findings |
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· Read pressure gauges |
· Knowledge of electrical and mechanical principles |
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· Check speed of equipment |
· Knowledge of process control instrumentation |
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· Measure temperature of equipment |
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· Inspect equipment for abnormal conditions |
Perform
preventive and corrective maintenance
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Equipment includes: |
Required capabilities: |
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· Blowers and compressors |
· Ability to assign work to proper trade |
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· Chemical feeders |
· Ability to calibrate equipment |
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· Instrumentation |
· Ability to diagnose and troubleshoot units |
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· Motors |
· Ability to differentiate between preventive and |
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· Pumps |
corrective maintenance |
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· Ability to follow written procedures |
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· Ability to perform general maintenance |
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· Knowledge of electrical and mechanical principles |
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· Knowledge of facility operation and maintenance |
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· Knowledge of start-up and shut-down procedures |
Perform administrative duties
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Tasks include: |
Required capabilities: |
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· Control employee work activities |
· Ability to communicate verbally and in writing |
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· Establish recordkeeping systems for facility |
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· Plan and organize work activities |
recorded |
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· Record information relating to facility performance |
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· Respond to complaints |
· Ability to organize information and follow written |
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· Write internal, state, and federal reports |