California, often an environmental trendsetter, is proposing a strict public health goal to reduce chromium-6, a probable carcinogen, in tap water following a recent report about its prevalence in 31 U.S. cities.
The state, which proposed an initial goal in late 2009, issued a draft version last week of a much stricter voluntary standard for the chemical that was made famous in the 2000 Hollywood movie Erin Brockovich. It’s now seeking public comment before finalizing its goal.
The U.S. Environmental Protection Agency is considering whether to set a limit for chromium-6, also known as hexavalent chromium, in tap water. In 2007, the National Institutes of Health reported strong evidence that the chemical caused cancer in laboratory animals when consumed in drinking water.