It wasn`t the most unusual location, but it was one of the worst. We had set the header pipe and points. They had been sucking water for a few weeks when the drill crews came in for the caisson holes. I think they were around 10` augers if I remember correctly. They had two cranes both with Caldwells set up on them. Don`t remember how deep the holes were, but they got the auger stuck one day and couldn`t get it out. They decided to pull the pin on the kelly bar and pull it with the crane. They lowered two Pile Drivers down in a basket with a torch to cut the bolt off the box. When they lit the torch, it blew out the hole like a Roman candle. They had hit a pocket of gas and the sniffers were in the trailer. One was dead when the basket got to the top, the other guy died a few days later.