The pilot stated that he was attempting a takeoff from Lake Alexandria in choppy water and gusting wind conditions when the left wing of the airplane contacted the water after liftoff. The airplane then impacted in a nose down attitude resulting in substantial damage to the left wing and separation of both floats. The winds at the time of the accident were reported: 290 degrees at 15 knots with gusts of 21 knots. No mechanical anomalies were found with the airplane.