Joaquin Sapien and Sabrina Shankman. December 29, 2009 ProPublica.
Environmentalists, state regulators and even energy companies agree that the problem most likely to slow natural gas drilling in the Marcellus Shale in New York is safely disposing of the billions of gallons of contaminated wastewater the industry will produce...
...Of the six injection wells that operate in New York, only one is licensed to accept oil and gas wastewater. It's owned by Lenape Resources Inc., which uses it exclusively for wastewater from its own gas fields [near Rochester, NY].
Workers at a steel mill and a power plant were the first to notice something strange about the Monongahela River last summer. The water that U.S. Steel and Allegheny Energy used to power their plants contained so much salty sediment that it was corroding their machinery. Nearby residents saw something odd, too. Dishwashers were malfunctioning, and plates were coming out with spots that couldn’t easily be rinsed off.
See: Nicholas Kusnetz. "Pennsylvania’s Drilling Wastewater Released to Streams, Some Unaccounted For." ProPublica. Jan. 5, 2011.