At this effluent tank, it was observed as well that a life buoy was provided, however the rope of the buoy was too short i.e. about 40 cm only. No other rope or supporting equipment for emergency response purpose in case of workers falling into the wastewater treatment tank. Further more, the buoy was the only 1 buoy prepared for emergency case for all wastewater treatment tanks while the distance between the buoy station to, for example, equalization tank, was more than 10 meters.At this effluent tank, it was observed as well that a life buoy was provided, however the rope of the buoy was too short i.e. about 40 cm only. No other rope or supporting equipment for emergency response purpose in case of workers falling into the wastewater treatment tank. Further more, the buoy was the only 1 buoy prepared for emergency case for all wastewater treatment tanks while the distance between the buoy station to, for example, equalization tank, was more than 10 meters.