Better check and see what the U.S. Geological Survey has discovered in drinking water systems across the U.S. – a whole new generation of chemical contaminants that are causing sex changes in fish and weird mutations in amphibians and are linked by scientists to growing birth defects in children, breast cancer in women and lower sperm counts in men. These contaminants come from such everyday sources as personal care products, discarded pharmaceuticals, home cleaning agents, pesticides, lawn care herbicides, automobile spill and exhaust, and runoff from suburban malls