Bore well depth in a house in Budgam,J&K is 250 metres; water level is 55 metres below ground level - At what depth should the pump be placed?

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I have a tubewell in Ompora, Budgam, Jammu & Kashmir. The water level is currently 55 metres below groundlevel. The borewell has a total depth of 250 metres , dia of 8" and MS casing has been used. The well was constructed in 2002. As per the driling agency the drawdown is 9 mts. and discharge is 4500 GPH. My current query seeks the height at which the pump has to be lowered to. Is there a a method to understand the same?