NEW YORK - Sen. Charles Schumer (D-N.Y.) says he is calling on the U.S Coast Guard to establish boat capacity limits in the wake of the tragic Fourth of July boat capsizing that killed three children. The senator was joined today by the Gaines family, who lost their daughter, Victoria, in the tragedy on Oyster Bay. She was about to turn 8 years old when she went on the boating trip to see fireworks. She and two other children were trapped in the 34-foot boat's cabin when it suddenly flipped and sank. Investigators are still trying to figure out what caused the Kandi Won to sink, but overcrowding has been a hard factor to ignore. The 1984 Silverton boat had 27 passengers on board, while the manufacturer recommends a capacity of 10 people. Schumer wrote a letter to the Coast Guard asking that it take up the issue right away. If it doesn't, he says he will push for legislation on boat capacities.Investigators search for clues in fatal July 4 boat accidentCHOPPER 12 VIDEO: Crews lift capsized boat in Oyster Bay2 little girls killed in boat tragedy laid to rest12-year-old killed in boat tragedy laid to rest