If there was NOTHING alive in the pond, the water may well be toxic. However, since there are living organisms (plants and animals) living in the pond, I would say there is a good chance the water is NOT poisonous. However, the water could still contain bacteria that are harmful, so boiling or otherwise sterilizing the water is a good idea. As for drinking urine: Many earthquake survivors that have been trapped for days survived because they drank their own urine. Whether or not they got sick from it afterwards has not been reported in any of the news reports I ever read. Let's see what Pappa-pepper has to say; after all, it's his game.