Good question Shenango. I'm not familiar with industry down river of the lake. Certainly the oil would have been tested for PCBs which is quite possible.
I've not heard of any ongoing test results in the the area of the spill or downstream thereof.
We're told the PCBs collect into the mud where it is picked up by all sorts of critters. The fish feed on the critters becoming contaminated and the PCBs will continue to accumulate over time.
I would like to hear, how the numbers jumped so drastically. If PCBs accumulate over a period of time through the food chain how much time passes between each test?
Unless there is a answer with the new math taught in today's schools the last I knew should not we have been seeing 2X 3X 4X etc. along the way?
I suppose new test methods are now availabe or perhaps like the NWS the PFBC now uses a new language only they understand.
I believe such toxic material exist, I believe such advisories are important to the people but most of all, I believe such information, to be exploited as scare tactics, to further the agenda of someone or some group.
Gotta run, I need to find some report issued by some group or person regarding August being much cooler than average.
PS. Could there be something behind the question "where have all the Walleye gone"..... who knows?
Tight lines and good times.