EPA On The Marcellus Shale.
This report sheds light on EPA's current thinking regarding the environmental risks associated with natural gas extraction in the Marcellus Shale, described by EPA as "the most expansive shale gas play in the U.S." EPA's primary concerns seem to be disposal of the wastewater from hydraulic fracturing used to extract natural gas and disposal of potentially radioactive waste generated during the extraction process. According to EPA, "shales contain naturally occurring radioactive material (NORM)...The Marcellus Shale is considered to have elevated levels of NORM."
