Inspectors should be great at:

• Estimating sizes, distances, and quantities; or determining time, costs, resources, or materials needed to perform a work activity.
• Observing, receiving, and otherwise obtaining information from all relevant sources.
• Identifying information by categorizing, estimating, recognizing differences or similarities, and detecting changes in circumstances or events.
• Inspecting equipment, structures, or materials to identify the cause of errors or other problems or defects.

Any supervisor should excel at:

• Monitoring and reviewing information from materials, events, or the environment.
• Detecting or assessing problems whether real or potential.
• Monitoring and controlling resources and overseeing the spending of money.

• Cleaning and maintaining tanks, filter beds, and other working areas, using hand tools and power tools.
• Adding chemicals, such as ammonia, chlorine, or lime, for disinfecting and deodorize water and other liquids.
• Operating and adjusting controls on equipment for purifying and clarifying water, processing or disposing sewage, and generating power.
• Inspecting equipment or monitoring operating conditions, meters, and gauges for determining loading requirements and detecting malfunctions.
• Collecting and testing water and sewage samples, using testing equipment and color analysis standards.
• Recording operational data, personnel attendance, or meter and gauge readings on specified forms.
• Maintaining, repairing, and lubricating equipment, using hand tools and power tools.
• Directing and coordinating plants workers engaged in routine operations and maintenance activities.