I am more concerned with the amount of crap the refinery dumps into the ground around here. I am related to a truck driver that used to haul 2 loads of caustic per day to our local refinery to dump into these wells. Let's just say, he wasn't the only driver making this trip daily. Why are they putting caustic in the ground? What the heck are they putting in there which requires them to put the caustic in to neutralize? That scares me much more than any fracking operation.