Can anyone tell if this well is bored or drilled by looking at this pic?

[Larry Caldwell]

The problem with a cable tool is keeping the bore straight. Cable Tools have a tendency to wander, but they have a rep for finding more water than a rotary drill. I know a guy who told me a story of drilling a well with a rotary and thinking he only had minimal water. The next day he came back and it was an artesian pushing 500 gallons/minute out of the casing. Sometimes people will try to develop a well by dropping dry ice down the well and sealing the well head, the theory being that the pressure will open water veins. I have also heard of using dynamite down a hole, but never actually talked to a person who did it. It seems to me that it would risk collapsing the well and ruining the hole.

Irrigation wells have a larger hole. A domestic water well will range from 2" to 8" in diameter, while an irrigation well, at least around here, starts at 12" and is sometimes a 24" hole.