p>Under the supervision and direction of the Foreman, the WWTO starts, stops, and adjusts the operation, of all equipment as necessary for proper operation of the four water treatment facilities; sanitary waste treatment plant, industrial waste treatment plant, domestic water treatment plant, and the canal water treatment plant. Equipment includes all pumps, filters, chemical feeders, chlorinators, air compressors, agitators, valves, scrapers, deionizers, sludge scraper and blow off, digesters, trickling filters, clarifiers, tanks, and automatic controls and related equipment.