I have heard that Ohio has a good aquafer somewhere, but It's no where near me. My well is very shallow. When it went dry, I went to the OH Dept of Nat Resources to get copies of well logs for every house in my neighborhood. Marked them up on a plot plan from the county office. Found out that I am at the high point of the local layer. There were three dry wells dug on the other side of the house (I am second owner) prior to finding water near where the present well is. I dug the new well 25 feet in the direction of the deepest neighbors well who had the best production. Gained an extra 10 foot of well depth and haven't cavitated the pump since. Shocking obviously won't work on aquafer water. The water layer here is only a couple of foot deep.