Bacteria, Lead, Carcinogens: Three words you'd hardly want to relate to your tap water. But according to "Men's Health Magazine", studies show that many cities' tap water contains these contaminants and more. Here is a brief excerpt: "The National Academy of Sciences (NAS) argues that the EPA's allowable arsenic level is more than 16 times what it should be, assuming years of daily consumption. Similar disparities exist for bacteria, lead, trihalomethanes, and halo-acetic acids (the last two are carcinogens)... With help from the Environmental Quality Institute at the University of North Carolina... and the National Resources Defense Council, we checked 101 cities' most recent water tests and noted the levels of the five contaminates listed above."