Check the layout and slope of the area. If the bedrock, which is where you are headed, is WAY down, you may consider a new place. If you think the bedrock may be less than 6 feet, you can make an auger to confirm the depth. Using a 3/8 ths inch steel rod, have someone weld on a small flange at the bottom and a "T" handle at the top. Work this round and round -back and forth, to reach bedrock. If it is less than 6 feet deep, consider going for it. Too deep for sampling for me anymore! TTC