About the water table. We have 200 feet of limestone that filters water before it reaches the water table. The level of a water table varies considerably in different parts of the US. In New Orleans I could reach ours with a shovel. Here in this part of Texas we sit on top of an immense layer of limestone. Our water is incredibly pure from all of that purification. Below our well the rock continues for ever and they drill it for natural gas, then they pump the frack water back into frack wells. That is the most vile, toxic mess man ever made except for nuclear waste. That water will BURN. Makes pills looks like candy. And yes, frack wells do occasionally leak. There are law suits in most of the counties about that.