Environmentalists are urging EPA Administrator Gina McCarthy to set a drinking water standard for hexavalent chromium (Cr6) as soon as possible, expressing concerns about the agency's failure to finalize, after eight years of work, a risk assessment of the metal that would allow EPA to move forward with a new standard. "We write with deep concern about this continued delay," Environmental Working Group (EWG) President Ken Cook and consumer advocate Erin Brockovich write in an Aug. 16 letter to McCarthy. "It is clear that the delay is sowing confusion among state and local regulators, utilities and the public about how much hexavalent chromium is safe in drinking water. This confusion is resulting [in] many Americans' exposure to unregulated levels of [Cr6]…" (Doc. ID: 193844).
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