The other thing that hasn't been mentioned is that in a lot of the complainer stuff I've seen regarding fraccing, it's from out east in Pennsylvania, etc.
Generally speaking you can say that starting on the west of the continent and heading east it goes from thicker to thinner geologically. So pay zones and oil and gas traps are deeper out west. Drinking water aquifers need to be close to surface as mentioned above.
Those eastern states have shallower pay zones and fraccing could be an issue like JD suggested. But out here in Sask, AB, BC? Yeah right, it's crap well design if it's the oil and gas sector to blame.
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