As a practitioner and supporter of CPR, I always take the opportunity to encourage the practice by bringing up the sewage spill thing. The turf farm runoff issue is true. I grew up around CC so I know its ecology well, and the turf farm uses their own brand of fertilizer. It's a very smelly type of chicken poop, and that's what you are eating when you cook up those giant walleye. The minnows eat the chicken poop, the shad eat the minnows, the walleye and trout eat the shad. What ends up on your dinner table is essentially concentrated chicken droppings. Sorry to ruin your appetite.