http://www.worldnewsinsight.com/hexavalent-chromium-chromium-6-discovered-in-u-s-tap-water/2174/ Tuesday, December 21, 2010 Hexavalent Chromium [chromium-6] Discovered in U.S. Tap Water Chromium Chromium, the chemical that was first brought to light when the movie “Erin Brockovich” covered the issues of groundwater contamination in California, has now been discovered in U.S. tap water. A survey just released, has discovered that hexavalent chromium is present… Read more