Wow. To be living so near a water source and find out the local livestock is the main reason the water of Lake Huron and its beaches are contaminated with E. coli. While the study shows how much contamination is contributed from cows, pigs, sheep, and even humans, it is surprising to see this. I guess one doesn't realize how much the fecal bacteria pollutes our water. And this is water that people swim and play in, drink, and use. Granted, most water goes through treatments, however, the thought that the water you're drinking or playing in has fecal matter in it, is pretty darn gross.