Solution for boulders in a borewell in Begur, Bangalore, Karnataka - Need advise on the pump to be used

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Dear All,

I request some of you to give solution for my problem and the details are given below.

  • Location: Begur, South Bangalore
  • First borewell depth - 350 feet
  • Second borewell depth - 550 feet (Lacks water but presence of wet pores at 350 feet, possibly a seasonal aquifer)
    • 2 inches of water between 550-580 feet
    • Presence of boulders at this depth (2 or 3 in number around one inch thick)

We stopped drilling at 630 feet guessing the boulders may increase.

We have been adviced to install stilt pipes for throughout the 630 feet which I felt is very expensive after spending 1 Lakh already for this 630 feet borewell.

I have 2 questions

  • Would the presence of boulders cause any potential problem? If yes, any solutions to counter the same
  • What kind of submersible pump I need to use for this kind of scenario and at what level I need to place the pump?

Request for an answer and Thanks in advance

Sasikumar

Bangalore

India Water Portal
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