Tap Water for an Estimated Two-Thirds of Americans Contains Levels of the 'Erin Brockovich Chemical' Group Calls 'Potentially Unsafe'

Chromium-6 has been found in levels that some scientists say is unsafe in water supplies serving an estimated 218 million Americans.
1:07 | 09/20/16

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Transcript for Tap Water for an Estimated Two-Thirds of Americans Contains Levels of the 'Erin Brockovich Chemical' Group Calls 'Potentially Unsafe'
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