Hi, I recently commissioned a borewell where the total depth reached was between 410 to 420 feet. The drilling was stopped as the drill bit got stuck in hard rock between 410 to 420 feet, all the efforts to recover the bit was in vain and so was my borewell. I was told that a yeild of 1.6 (one and a half) inch was found at aroung 380 feet. Casing of 2.5 inches was placed upto 82 feet, i.e. untill the rock formation. The borewell team was not helpful and were in a hury to move on...not that they seemed interested anyway. I would like to test the yeild of water and if in truth water has been struck at around 380 feet. therefore I would request your humble cooperation and expert advice in finding a solution and an enterprise or individual who could test the yeild for me. Thanking you for your time and response, Vikas.