In 25 of 35 U.S. cities where tap water supplies were tested for hexavalent chromium — deemed likely to cause cancer in humans in a U.S. EPA draft review this year — levels of the chemical exceeded the minimum set by the state of California to protect public health, according to a report released today by an environmental group.
The Environmental Working Group’s (EWG) new findings mark a public flare-up in the behind-the-scenes battle over estimating the carcinogenicity of oral exposure to hexavalent chromium, also referred to as chromium-6. The draft EPA assessment released in September could pave the way for a national drinking-water standard for the chemical, best known for polluting groundwater in Hinkley, Calif., where activist Erin Brockovich won a multimillion-dollar settlement for locals and became a household name.
Trager Water Report 
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