National Academy of Sciences Study in Northern Pennsylvania finds the closer people or their drinking water are to fracking, the more contaminated their water is User Shill_of_Halliburton, in the Fracking: Revealing the dirty facts behind natural gas drilling subreddit, 18 Jan 2014
Increased stray gas abundance in a subset of drinking water wells near Marcellus shale gas extraction User CBruceNL, in the Newfoundland and Labrador: Canada's Proudest Province! subreddit, 17 Aug 2013
Increased stray gas abundance in a subset of drinking water wells near Marcellus shale gas extraction User greg_barton, in the /r/Energy: News & Discussion subreddit, 16 Aug 2013
PNAS Scientific Paper on Methane, Ethane and Propane Levels in Drinking Water Near Fracking Sites (xpost from r/science) User Treffles, in the Saint John, New Brunswick, Canada subreddit, 16 Aug 2013