http://hisz.rsoe.hu/alertmap/woalert_read.php?cid=13373&cat=dis&lang=eng(I know you are saying 'what the hell is recreational water')
Montana
Nine cows died after drinking from a popular recreational lake east of here, some after walking just a few feet away from the water, prompting a warning for people to stay out of Delmoe Lake. A witness reported watching two cows drink water from the lake, then walk a few feet before falling over dead, said Terry Sexton, Whitehall district ranger for the Beaverhead-Deerlodge National Forest. Officials suspect the cause could have been a blue-green algae bloom and are warning people to stay out of the lake. "Don't drink the water, don't get in the water,'' Sexton said Wednesday. Forest Service officials are posting signs warning people to stay away from the lake, said Jack de Golia, Beaverhead-Deerlodge spokesman. Blue-green algae, when in the bloom growth phase, can produce a cyanotoxin that is incredibly lethal, said Dr. Joe Hartley, a large animal veterinarian in Dillon. De Golia said officials suspect the wind blew the algae to the shore. The Forest Service doesn't plan to test the water because the results would likely take a while to come back, de Golia said. The suspected algae is killed by a hard frost, so officials are hoping to get a cold night to take care of the problem.
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