@ Jdaddy:
Brunner Island used to be loaded with dozens of fishermen along the Susquehanna. I remember twenty years ago you couldn't find any parking spots.
You used to be able to fish in the discharge channel itself, and drive around through the plant to the upstream side too.
The discharge warms the water to about 60-70 degrees in winter below the plant and even keeps the river warm 2 or 3 miles downstream. I remember walking out onto the RR bridge in Saginaw and looking up river in winter. On the left side,( York ) there would be no ice, on the right, ( Lancaster ) it would be loaded with ice. The bridge is maybe 3 or 4 miles downstream from the plant.
The down side was that up until last year they still let that steaming hot water discharge even in the heat of summer so it created a dead zone with water over 100 degrees and the summer heat does not help to lower the water temperature as it flows down river, so the water just stays warm. In August with 90+ days the water stayed in the 90+ degree range with all that hot water flowing out strong. The amount of water that flows from the discharge is equivelant to a very large fast stream. However, the warm water quickly cools in winter to acceptable temperatures and hangs to the York County shoreline even way downstream from the plant. Further out in the main river channel the water is cooler.
About two years ago I tried to wet wade out past the warm water to reach some cooler water on the far side of a channel and an island. The water was so hot I had to turn around and get out, it was starting to burn my legs. This was about 2 miles downstream of the plant in summer. It was like a hot bathtub.
Within the past year or so they've designed a series of steam cooling towers to eliminate the discharge into the river during warmer months.
I stopped two scientists a few years ago and talked to them, just being curious. They were doing macro studies and taking temperatures and were contracted by Brunner Island to do some tests and studies. Not that it isn't obvious that 100+ temps are bad for a river system, they did not offer many answers to my questions so I left them alone.
Anyway if you go to Brunner Island now, it is desolate. Maybe one car through the whole stretch, and it's occupants are probably either smoking pot or making out, or perhaps just enjoying the view. Nobody is there because, there aren't many fish to be caught anymore.