http://online.wsj.com/article/APceea19a766a04893bb94f3f06e5c01dd.html

This article here has a lot of info back from the industry and they're question a lot of the EPA's methods etc. Anyway, this is a good read to see why they aren't accepting that.

There have been numerous studies from respectible insitutions and universities that show there is zero effect, so the key here is to understand that if it really was fracking for these two wells, then why? Was it because they were very very close to a well (which shouldn't have happened in the first place), or were they fracking shallow depths? What rattles me the most, is that we never hear this EPA or any environmental angecies that 99.999% of wells haven't had any problems, people are going on with their lives and drinking their water like before. Sorry but a track record like that is flawless and any industry of this size is going to have some incidents. That's where governments have to come in and make sure that there are serious consequences for companies that cut corners and mess around. Spend some your gas revenue on testing baseline readings etc and moniter wells. Do what has to be done to ensure that things are on track without errors.