"In 2012 Ingraffea and colleagues read through 16,017 inspection reports filed over the last four years. What they found was a significant and steady rate of methane leaks at the wellbore or what is known in industry jargon as "bubbling in the cellar."
In 2010, 111 of 1,609 wells drilled and fracked failed and leaked. That's a 6.9 per cent rate of failure. In 2012, 67 out of 1,014 wells leaked -- a seven per cent rate of failure.
"We looked at violations and not comments," adds Ingraffea. Quite often inspectors would note that a well was leaking like a sieve but that violation was pending. As a consequence the seven per cent figure represents a dramatic underestimate of methane leaks, says Ingraffea. "
http://thetyee.ca/News/2013/01/09/Leaky-Fracked-Wells/
Get real yourself. 
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