EPA water standards

The EPA recently completed a draft health assessment on Chromium-VI that is causing controversy in the scientific community because it concludes that Chromium-VI is likely to cause cancer through drinking water. This conclusion is at odds with EPA’s previous assessments, much of the scientific literature, and assessments by other countries, including Canada.
There are chemistry teachers all over the U.S. that know this simple truth: chemistry matters in everyday life. Nothing demonstrates this principle more than when you look back at the lead water crisis in Flint, Michigan.
Everybody wants to know that when they turn on their tap, their drinking water is safe. According to the EPA, the U.S. enjoys one of the world’s most reliable and safest drinking water supplies. But these days, when we question everything, it’s essential to understand the basic facts about drinking water.