Just 2 weeks ago our local quarry had an incident where an AOW course was under way. A student wearing only a 3mm wetsuit & a vest (no hood or gloves even) went down on the deep diving portion of the dive. He got just below 50 ft where the water temps are approaching 45 degrees. The student panicked & bolted to the surface. He was closely followed by another, assisting instructor, who was nearby but couldn't get to him quick enough to catch him. He came to the surface unresponsive & not breathing. The assisting instructor pulled the diver to the shore, very nearby & the quarry's emergency procedures were activated & EMS called. Once on shore, the victim vomited & resumed breathing on his own. Oxygen was administered & supportive care by several EMT's that were on site until EMS arrived. There was not much information about the diver after that other than he was transported to a hospital in Louisville, KY & did have to undergo recompression therapy. A few days later he was back to work.