A lot more contaminants are being found in water from the Ohio River these days — and some of them might surprise you. "The last numbers I saw ... caffeine was the No. 1 thing that was showing up," Henderson Water Utility General Manager Bruce Shipley said during a public hearing Monday. "I forget what the numbers were, but it would take 10 cups of coffee to equal the amount of caffeine that you would be getting in a cup of water. That is the most prevalent, highest level of contaminant that's being seen at this point."