Pharmaceuticals and personal care products in drinking water are not currently regulated in the United States. The U.S. Environmental Protection Agency maintains an active program called the Contaminant Candidate List (CCL)
to identify contaminants in public drinking water that warrant detailed study. The most recent Contaminant Candidate List, CCL3, finalized on Sept. 22, 2009, for the first time included 10 pharmaceutical compounds.
Additionally, seven hormones are currently being monitored under EPA’s Third Unregulated Contaminant Monitoring Rule. The seven hormones that are being monitored under UCMR3 include: estradiol, ethynylestradiol (ethinyl estradiol), hydroxyestradiol (estriol), equilin, estrone, testosterone and 4-androstene-3,17-dione.