Sewage vs Caffeine

http://www.macroevolution.net/sewage-and-caffeine.html 

Researchers from the University of Montreal's Department of Chemistry have discovered that traces of caffeine are a useful indicator of sewage contamination.  "E. coli bacteria is commonly used to evaluate and regulate the levels of fecal pollution of our water from storm water discharge, but because storm sewer systems collect surface runoff, non-human sources can contribute significantly to the levels that are observed," Sauvé explained. Sébastien Sauvé is the head researcher at the University of Montreal’s Department of Chemistry.  The study proves that there is a strong correlation between the levels of caffeine in water and the level of bacteria. Samples were taken from streams, brooks, and storm sewer outfall pipes in Montreal. These samples were then analyzed for caffeine, fecal coliforms (a facultatively-anaerobic, rod-shaped, gram-negative, non-sporulating bacterium), and carbamazepine (anti-seizure drug). All the samples contained these contaminants, which would suggest that contamination is widespread in urban environments. Sauvé suggested, "A caffeine sampling program would be relatively easy to implement and might provide a useful tool to identify sanitary contamination sources and help reduce surface water contamination within an urban watershed."  The barrier to this solution would be that it would not be able to fix the problem 100%.  It can just help reduce the contamination.  On the positive side, the program is relatively easy to implement and by reducing this pollution, it will help more than anything. I would want this problem fixed because I drink caffeine, and I do not want to be drinking pollution or contamination with it.