A woman who was swimming with a group of young people Tuesday night at a reservoir in Waterbury says she tried to save two young men who tragically drowned. Now, police are warning swimmers to stay out of restricted water areas. Courtney Calvo is still shaken. “A little traumatized,” she told News 8 in an exclusive interview Wednesday. “I keep replaying everything in my head.” What she’s replaying is a tragedy that occurred less than a day ago at the East Mountain Reservoir — a place where the water is supposed to be off-limits to swimmers. There is fencing surrounds most of the water. There are trails around the water with “No Swimming” and “No Trespassing” signs. Still, that hasn’t stopped many young people over the years from somehow getting to the water for what they hope is summertime fun.