If you've heard anything about hexavalent chromium in tap water, it was probably from the movie Erin Brockovich. In that film, the legal clerk and environmental activist Erin Brockovich (as played by Julia Roberts) built a case against California's Pacific Gas and Electric litigation alleging that the cancer-causing hexavalent chromium the company was using to fight corrosion … [Read more...] about Hexavalent Chromium prompts Tap Water Safety concerns