Chromium-6: A Probable Carcinogen Found in 31 city waters, including New Haven, CT Hexavalent chromium, or “Chromium-6” was recently detected in 31 city waters after The Environmental Working Group, or EWG, completed a study of 35 cities across the country. Of the 35 cities tested, 31 had detectable levels of chromium-6, with 25 cities including Read the full article…