One thought on “Study: Gas ‘fracking’ in Arkansas not affecting groundwater”

  1. Gas-bearing rock can only exist if there is a layer of *impermeable* rock (called a Caprock) lying on top of it. The same layer of rock that keeps gas from escaping upwards from gas-bearing formations also keeps water from trickling down into these formations, withthe result that the groundwater layer has several hundred (of thousand) feet of solid(!) rock between itself and the gas-bearing formation.

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