Need help regarding passage of air and presence of boulders in the borewell

Dear Team,

I have a question regarding boulders. While we were drilling the borewell in our farm, at the first 15 feet was the presence of soft sand after that hard rock was found. At 140 feet found one gap of 4 feet and ageing rock was there and after 180 feet found one more gap where air pass is happening due to which boulders are falling into the hole and the air pass is coming back. So, borewell person stopped drilling after 180 feet. As per the geologist that is the only borewell point we have in our farm. Kindly help how can proceed further or do we have any other solution for this?

Thanks Naren

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