A new posting at The Consumerist discusses a study looking at contaminants in brand name bottled water from major retailers.
Here are a few choice goodies found in the water: Coliform bacteria, caffeine, the pain reliever acetaminophen, fertilizer, solvents, plastic-making chemicals and the radioactive element strontium.
http://consumerist.com/5063874/study-there-is-all-kinds-of-nasty-crap-in-your-bottled-water