What happened
The student pilot departed on runway 30 to practice touch-and-go landings. He immediately entered the traffic pattern for runway 26. He said he made a power on, soft field landing, touching down at 65 knots IAS, and then immediately started a takeoff. Reportedly after lift-off, he lowered the nose to gain additional airspeed, and began to climb. At about 100 to 150 ft AGL, the aircraft began to settle back towards the runway. The pilot said that he attempted to raise the airspeed and maintain altitude, but was unable. The aircraft touched down, overran the departure end of the runway, and struck a fence.
Findings
After landing, the wind sock indicated a quartering tailwind. An investigation indicated that there should have been sufficient runway available for a touch-and-go landing. The density altitude was calculated to be 5885 ft MSL. There were four runways at this airport. The density altitude was about 5700 ft.