Borewells and Tubewells

India being an agrarian country, our farmers depend mainly on groundwater for irrigation. With increasing population, lesser land holdings and urbanisation, deeper borewells are dug for groundwater abstraction. Borewells & tubewells, are very similar. Both are basically vertical drilled wells, bored into an underground aquifer in the earths surface, to extract water for various purposes. The difference in the two lies in the type of casing used, the depth of this casing and the type of soil where they are drilled. Casing to support the external surfaces of the borehole against collapse may be needed at certain depths, and usually is made up of PVC pipes. Electrical pumps are usually used to pump out the water fro the borewells, though the government is now giving subsidy for solar pumps. This convenience of pumps may increase the depletion of the groundwater at an increased pace.

Our FAQ on borewells, deals in detail with topics ranging from the initial planning, selection of site to final commissioning, maintenance of the structure and problems associated with existing borewells,. Another Frequently asked questions (FAQ) on Groundwater - Understanding the basics, narrows down the existing knowledge gaps amongst the common groundwater users.

Excessive drilling of borewells has led to exploitation of groundwater at higher rates than the rate of water recharge and caused depletion of the groundwater levels. To monitor this many states like Karnataka & Kerala have come up with laws & a statutory authority to regulate and keep tabs on the groundwater utilisation. Some states have implemented groundwater legislation acts which prevent drilling of borewells without the permission of Government Bodies in water scarce regions. However, some states allow only drilling of drinking water borewells without the need for obtaining permission. Therefore, it is advisable to explore the details of it before drilling a borewell.

Central Ground Water Board (CGWB) has come with reports on the groundwater status in the country. Uncontrolled use of bore well technology leads to exploitation of groundwater at higher rates than the rate of water recharge, which may cause drastic depletion of groundwater. 

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Hi,

We are an apartment of 41 flats (including Row Houses) in Pune. We use borewell water for non-drinking purposes. We have two borewells.  We have tested the water and the report is up loaded as a separate  file. Individual flats have their own water filters for drinking water. 

Borewell water is stored in the ground level tank and then it is pumped up to the overhead tank from where it is supplied to each flat. This water is only used in bathrooms. 

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Hi,

We have dug a borewell, 1100 ft and found 1 inch of water at 250 ft. Please suggest

  1.  Do I have enough water in the borewell for a family?
  2. Can I conduct borehole camera test to verify the water fissures?  Whom should I contact for such test in Bangalore?
  3. What type of motor is to be used for pumping the water and what should be the frequency of pumping?
  4. How much water could be extracted per day

Thanks,

Prasant Purohit

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Hello,

We have a  6" borewell used for domestic purpose, which was about 200 feet deep and sheet metal casing pipe till 32 feet drilled in the year 2003. Recently we felt that  sewage water has entered the borewell. The line is about 8 to 10 feet away from our borewell. Last week we got the borewell cleaned by using salt, washing powder and bleaching powder with the help of borewell cleaners.

Now we are planning  to replace the existing sheet metal casing with pvc casing or inserting smaller size pvc. Can you please suggest how to go about this process?

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Hello,

Our source of water is borewell which is contaminated. It has TDS approx. 895 ppm and total hardness approx. 600 ppm. The silicia content is aprox. 105 ppm. What would be the best way (cost efffective solution) to treat this water as we want to use this for drinking purpose. Kindly revert at the earliest

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Hello,

I need contact details of people who can help in fixing our borewell issue. Please help

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Hello,

Presently I am having a borewell and I am pumping the water from it to the over head tank (OHT) directly. Off late I am feeling that tiny particles are getting deposited in the OHT which is causing some problems in toilet flushing. Also the hardness level is high in the borewell water which I want to reduce to optimum level.

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News roundup - IAS officer suspended in UP, groundwater contaminated by gold mines and the number of households with improved sanitation rises.

IAS officer in Uttar Pradesh suspended for action against sand mining

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Hello,

We had a borwell in our apartment which is  roughly 400 feet deep. Sometime back there was some problem with the borewell motor and it was taken out for repair work. While doing so they also removed the flexible pipe inserted in the borewell. It was left in the same condition for a month or so.

Unfortunately, the borewell got closed due to land drift/ slide.  

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Hi,

I have dug a borewell approximately in Feb 2012. First rock was hit at 140 ft and casing is done till then. Initial yield was excellent. Recently the yield has dropped drastically. Our assumption was that the problem was insufficient capacity of the motor - 2HP 24 stages Motor (Suguna) staged till: 530 ft (not sure though) I have a rainwater harvesting pit just 5 ft away from borewell.

Below questions are there on my mind. Kindly suggest.

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Hello,

I am from Chennai and live in an apartment of 24 houses. Recently we found out a foul smell in our borewell water and cleaned the borewell completely using an air compressor. After cleaning we pumped out the water for 2 weeks and did not use it. We gave the water for chemical/microbiological analysis before using it.

Following are the results

Odour - Objectable 

Colour (TCU) < 5, PH Value - 7.8

Conductivity  1214 Us/cm2

Turbidity -3.5 NTU

TDS - 825 mg/l, Total Hardness - 915 mg/l

Carbonate hardness - 41mg/l

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