Pot? Did someone say pot?
Anyway I have been following lklasing's trip report about her recent swim at Bay Lake during the triathlon and just asked her about the subject. We have all read that they shut down River Country "allegedly" because of bacteria or amoeba or some such creepy crawlies. So do they ask athletes to sign a waiver? Have any athletes gotten ill? Was this all a smoke screen to hide that Disney simply made a financial decision to force guests into their newer parks TL and BB?
Hey RR - I just found this thread and as soon as I saw it, I remembered that I had never answered your questions. Sorry!
Anyway, I think they made us sign a waiver to register, and I remember for sure that there was one we printed out and brought with us to the expo. In fact, I just found the link:
http://www.trekwomenstriathlonseries.com/downloads/2009TrekTriathlonWaiver.pdf
While it references water hazards, it really doesn't appear to be much different than the releases I have signed for any race I've run in (all prior races being merely running races - no swimming in lakes). They all make you sign everything away in the event you get hurt, sick or die as a result of participating. So, while the hazards may be different with a race that involves swimming in a warm lake (like Bay Lake) than with just a road race, the release is about the same as with other races.
Regarding how the water was, it was honestly fine. I had thought I'd be scared of alligators, but there were so many people that the chances of a rogue gator choosing me to eat were slim. The water didn't make me sick in the least.
Now, I haven't read the story about the Orange man yet, but the stories I've seen in the past about people who have gotten sick and/or died from lake problems seem to usually involve someone who has water shoved up his sinuses pretty hard - that's how the amoeba (sp?) get to your brain where they do all that nasty damage. Things like skiing or other rough water activities. With the triathlon, we all just walked into the water and started swimming. I hever had any water up my nose (although I know some got in my mouth, which I tried not to swallow

).
So, there's much more info than you probably wanted. I'm not aware of anyone getting sick from any of the Disney triathlons, or at least not mine.
What happened with River Country is a question I can't anwer.... I sure wish it was still there, though!
Leslie