EPA Puts Pharmaceuticals on List of Possible Drinking Water Contaminants

The U.S. Environmental Protection Agency has listed 104 chemicals, including a number of pharmaceuticals, as potential drinking water contaminants to be considered for government regulation. While the agency must evaluate possible chemical contaminants every five years under the Safe Drinking Water Act, this is the longest list ever compiled by the agency and the first time it has included pharmaceuticals. They include estrogens such as equilenin, equilin, estradiol, and mestranol, which are used for hormone replacement therapy and birth control. Also on the list are 12 microbes, including the hepatitis A virus. The EPA evaluated about 7,500 contaminants and biological agents when compiling the list. Researchers will continue to evaluate data on the 104 chemicals and 12 microbes, and by 2013 will determine whether drinking water standards should exist for at least five of them. Click here to read the full list of the EPA’s “contaminant candidates.”