Hi,
We had an old borewell with 70 feet depth in our house in West mambalam, Chennai. After 10 years of use, the pipe was struck after the floods and water was not coming. We drilled new borewell one year back - 260 feet depth. Rock was hit at 80 feet and casing was done for approximately same depth. But, from the beginning, only muddy water is coming from the borewell. Last month, we did flushing of the borewell. Water was clear for around 2 weeks. Again now, muddy water is coming. Please let me know the permanent solution for this problem. Any geologist/ borewell expert contact details is also welcome.
thanks