This paper focuses on issues of typical groundwater pollution caused by inadequate wastewater control systems in Vietnam, a common problem in many developing countries around the world. Two case studies are presented, one of industrial wastewater problems in the province of Tay Ninh, and the other of groundwater contamination by an unsanitary landfill in Ho Chi Minh City. Both cases have at least one thing in common: lack of impermeable liners to contain wastewater. Measures are proposed to deal with these problems and secure a safer water supply.
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