The more things change the more they stay the same, at least that’s what they say. And in the case of the carcinogen found in U.S. tap water that was made famous in the film “Erin Brockovich,” that certainly seems to be true. For nearly two-thirds of Americans, chromium-6 is a daily fact of life. It’s the deadly carcinogen that spawned the lawsuit at the heart of the Erin Brockovich case in which residents of Hinkley, California sued and won against Pacific Gas & Electric for its culpability in poisoning the area’s groundwater.… Read the rest