From Water Environment Federation:

Newly released details from a state drinking water study show that prescription drugs and personal care chemicals have crept into water supplies used by every major water utility tested.

The results, provided in response to a request from The News Journal, show smatterings of medicines ranging from analgesics and antibiotics to anti-convulsives and hormones in water used both by public and private companies, including all three of New Castle County’s largest public utilities and major suppliers in Kent and Sussex counties.
Source: http://www.wqa.org