The Environmental Working Group (EWG) published a report on Monday with alarming conclusions: over 74 million Americans have tap water containing the carcinogenic hexavalent chromium.
The EWG tests analyzed water from 35 American cities and found that toxic metal contaminates were concentrated well beyond levels declared safe by government regulation. The EWG is working closely with the Environmental Protection Agency to create and enact laws protecting public water sources as well as measures to require testing for hexavalent chromium and set standard national limits regarding water contaminates.
Hexavalent chromium is a known "possible" carcinogen responsible for lung, stomach, and intestinal cancers, as well as kidney and liver damage. Infants, children, and fetuses are most susceptible to the carcinogens in drinking water.
For more or to see the full report: EWG