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        6-12

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        Part of FRONTLINE
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        New Contaminants in the Water Supply

        This video segment adapted from FRONTLINE: "Poisoned Waters" explains how the Potomac River, like many others, serves as both a drinking water supply and a dumping ground for wastewater. With proper processing, this system works well. However, water treatment removes only known contaminants; there is a growing concern about "new contaminants," chemicals in the water that are still unregulated but could cause harm to humans and animals.

        This media asset was adapted from FRONTLINE: "Poisoned Waters".

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