Hazardous waste to occur in construction and installation hole production base, including น้ำมันเครื่องใช้แล้ว and lubricant, which was not much. And would have been isolated and collected in the tank 200 liters.So, the hazardous wastes in construction and installation. Be contaminated into surface water and affect the quality of the surface water, it is unlikely. Surface water quality impact is at a low level.
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