Control processes and equipment to remove solid materials, chemicals, and organisms from the water or to render them harmless; maintain and operate pumps, pipes, valves, and processing equipment of the treatment facility to move the water or sewage through the various treatment processes; read and interpret meters and gauges to make sure plant equipment and processes are working properly and adjust controls as needed; take samples of the water or sewage and perform chemical and biological laboratory analyses; and, make minor repairs to valves, pumps, and other equipment.
