Wastewater from event 4) to 6) of the production line 2 will be sent to API Oil Separator to separate the oil out. The oil extracted is sent to eliminate the agency that is licensed by the government before sending the water through an oil separator and then to the Wastewater Hold Up Tank and Inspection Pit then. Send effluent The criteria of Hemaraj Eastern Industrial Estate (Map ta phut), then enter the sewage system of public Hemaraj Eastern Industrial Estate (Map ta phut).