That's why river has lots of fish nobody wants to eat fish from the poo plant. If ever fish intracoatal city it's the mouth of the vermillion so any reds or specks might be poo fish too hahaha like fishing out of venice it's the butt hole of america. Where are the culverts you speak of I wouldn't mine just having something tug on the end of my line ?
Has anybody seen the Dirty Jobs episode on the tilapia farm? They were raised in a sewer plant. Vermillion can't be much worse. Fishing should be good in there think of all the structure to fish (fridges, cars, abandond boats, etc....)