A BE400 returned to the departure airport following receipt of a LH Wing Overpressure Warning Light with visible evidence of fuel leaking from the wing.

Narrative

When established in the climb nearing 10;000 feet we received a LH Wing Overpressure Warning Light. I looked out at the left wing and noticed fuel streaming out of the wing near the overpressure valve. We immediately called departure control for a return back to the airport. They wanted to know if we needed assistance. We replied with; 'Yes; we have a LH wing overpressure situation; and its dumping fuel. We would like to return and have your emergency equipment assist us if the fuel keeps dumping out during landing and rollout.' After running all appropriate check lists; and descending through 4000AGL; the overpressure light extinguished; and the overpressure valve closed. The fuel stopped leaking. At this time we advised the tower that the fuel leak was secured; but wanted the trucks to escort us after landing and to the ramp. Landing was uneventful. Upon deplaning; I had to fill out an Aircraft Occurrence Report from their Department of Civil Aviation. The mechanical issue was a repeat write up.