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Hi
As per geologist, water will come at 1000ft plus. Plot is in whitefield and construction g plus 3 there. Is it worth to have borewell at 1000 ft plus?

It costs you more than Rs. 2 Lakhs and the water from that deep is not suitable for potable use, as it contains very high level of chemicals like fluoride...etc. Also the water availability through out the year or in the near future is not guaranteed.
What is your option B ?

Hi.
Instead of spending that much cost on borewell please include rain water harvesting in your building so that you dont have to depend on borewell.which will cost you half of the borewell cost.

regards
lns

Hi,
Deep borewells are expensive affair . For digging it will cost you close to 1.5 lac and motor installation will be another 1.5 lac min . Also pumping water from 1000' down will consume lot power.
Instead of investing on borewell i would suggest to go for large rainwater sumps of minimum 30k liters . This way you can store rain water and use it directly . Excess water can always be recharged back via recharge pit .

Regards,
Ar.Praveen.N
Ardes Architects and Interior designers
ardesarchitects@gmail.com
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http://www.ardesarchitects.com

Good advise by Ar. Praveen

Also I have seen many people who tried bore at 2-3 points and all of them failed so 4-5 lakh rupees down the drain.

Deep bore wells are below multiple granite rock layers so rain water does not seep and recharge them.
The water table in deep bore well percolates in timeframe of a million year.
On other hand shallow aquifer that is 30-40 feet gets recharged by rainwater seasonally.
In case there is a lake or water body you can opt for an open well ( 3 feet dia) This well will double up as rainwater pit where excess water flow from your sump tank can be directed. Open well costs around 1500/- per ring ( one Ferro cement ring of 11inch) with material at around 20 feet the well digger can tell you if there is hope of getting water.

At least in rainy months you can hope to get water in this scenario and if nothing else you can prevent flooding in case of excessive rains.

In my ongoing construction I have left an open to air area connected to basement where I plan to dig a 30 feet open well to prevent basement flooding and divert all the rainwater collected around basement wall.
The cost will be almost equal to wastewater sump tank + sump pump method and more reliable as basement flooding happens because power cut and heavy rain happens together in Bangalore.

Thanks all