QUESTION
Need advice on the ways to increase yield of the borewell or dig another borewell in a plot in Ratnagiri, Maharashtra - Choice between well and borewell

On 2nd of May 08 , We drilled borewell upto 300 feet in my 14 acre plot (location Tal Chiplun, At post Terav, Dist Ratnagiri, State maharashtra) but there was no water. We had finalised these spot by traditional ways ( we did check ( Water availabilty Spot) plot with 2 different person at different time, who had suggested 3-4 spots but there was 1 common spot, for which both have given assusrance that there is water at 150 feet, but we need to dig till 250. We digged till 300 feet  but there was no water.

At 3 minutes walk from my plot (at same ground level) there is well which has water (throughout the year) at 45 feet.

I would like to know :

1. What are the reasons for failure of this 300 feet drill?
2. Is there is any scientific/general method which can tell that about what should be the max feet drill?
3. Is there is chance that there will be water after 300 feet in the same drilled borwell?
4. Is there is any other way where we can extend the feets for this drilled borewell?
5. Should I take another chance of having another borwell in the same plot ( by going scientific method: ie paying 5000 to borewell      
    company who will check my 1 acre plot by their machines & then comany will tell us whether checked  plot has water or not. If there   
    is water, then they will drill.  if they drilled & if there is no water then they wont charge for drilling apart from rs 5000)
6. What will be most recommendable whether drilled borwell or well & Why?

Satish Vinayak Kadam
mobilekadam@yahoo.com

by
6 May 2008