A clear segregation of drainage systems between unpolluted water and effluent contaminated with hydrocarbons, heavy metals or other potentially hazardous chemicals arising from the railway depot shall be provided.

 
  • 须设置清楚分隔的排水系统,将未受污染的水与已受铁路车厂所排出的碳氢化合物、重金属或其他有潜在危险的化学品污染的污水分隔开。
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