Published time: October 03, 2013 01:54 A natural gas well is drilled near Canton, in Bradford County, Pennsylvania (Reuters) Researchers have found high levels of radioactivity, salts, and metals in water and sediment located downstream from a treatment facility which processes fracking wastewater from oil and gas production sites in Pennsylvania’s Marcellus shale formation. A … Continue reading ‘Alarming’ presence of radioactivity found by Pennsylvania fracking wastewater study