OECD Studies on Water. This report calls for a better understanding of the effects of pharmaceutical residues in the environment, greater international collaboration and accountability distribution, and policy actions to prevent and remedy emerging concerns.
Hormones, antidepressants & antibiotics – have been detected in surface & groundwater across the globe
http://www.oecd.org/environment/pharmaceutical-residues-in-freshwater-c936f42d-en.htm