Operate or control an entire process or system of machines, often through the use of control boards, to transfer or treat water or liquid waste.

• Clarifying-Plant Operator
• Pump-Station Operator, Waterworks
• Waste-Treatment Operator
• Wastewater-Treatment-Plant Operator
• Water-Treatment-Plant Operator

• Add chemicals such as ammonia, chlorine, or lime to disinfect and deodorize water and other liquids.
• Clean and maintain tanks and filter beds, using hand tools and power tools.
• Collect and test water and sewage samples, using test equipment and color analysis standards.
• Direct and coordinate plant workers engaged in routine operations and maintenance activities.
• Inspect equipment or monitor operating conditions, meters, and gauges to determine load requirements and detect malfunctions.
• Maintain, repair, and lubricate equipment, using hand tools and power tools.
• Operate and adjust controls on equipment to purify and clarify water, process or dispose of sewage, and generate power.
• Record operational data, personnel attendance, or meter and gauge readings on specified forms.

• adjust production equipment/machinery setup
• clean equipment or machinery
• collect samples for testing
• control operation of compressors
• direct and coordinate activities of workers or staff
• inspect machinery or equipment to determine adjustments or repairs needed
• install water or sewer treatment plant equipment
• load or unload material or workpiece into machinery
• maintain consistent production quality
• maintain or repair industrial or related equipment/machinery
• maintain production or work records
• monitor production machinery/equipment operation to detect problems
• operate chemical processing equipment
• operate power driven pumps
• operate power generation equipment
• operate water treatment equipment
• test materials or solutions
• use hand or power tools
• use laboratory equipment
• use pipe fitting equipment
• use precision measuring tools or equipment