It would be great to have someone without an agenda determine whether or not polluted ground water and increased quakes are connected to fracking. I've read both sides of the argument. I lean toward them being unrelated wrt ground water because they are injecting fluids at +/-15,000ft, most artesian wells dont exceed 1500'. There should be no interaction, unless the pollution occurs during the drilling with the various mud lubricants used. Earthquakes, I dunno. Those fissures and voids were once filled with oil and gas under great heat and pressure. If plates were to slip it seems that they would slip better when full of oil and pressure. But I'm no geoscientist or fracking expert. It could be that things are moving and we just happen to have more quakes, what we are seeing post fracking still falls within a normal distribution; just that they happen to occur more frequently now. I dunno.