FIELD OPERATOR JOB DESCRIPTION. PURPOSE OF THE CLASSIFICATION. Under the general supervision of the Field Supervisor, performs as a member of the field crew operating, installing, maintaining, and repairing the District’s water system and its facilities. ESSENTIAL JOB FUNCTIONS. Installs, maintains, and repairs water lines and mains. Repairs fire hydrants, water services, meters, and meter boxes. Locates water lines. Installs new service taps. Ch...