Are antibiotics in ground water cause for concern?

An article in Boise Weekly on antibiotics and hormones that have been found in ground water wells in an Idaho neighborhood near a cattle feed lot quotes Diana Aga, assistant professor of chemistry, who says the science on antibiotic water contamination doesn't point to an acute health concern, but since the long-term health and environmental effects are unknown, the possibility that antibiotic contaminates could contribute to the development of antibiotic-resistant microorganisms is a concern. Go to article.