High levels of methane gas may have infiltrated private water wells and streams in Pennsylvania's Bradford County through small open spaces in a natural gas well that a drilling company was working to repair, environmental regulators said on Thursday.
A description of the problem was included in a letter from Department of Environmental Protection Secretary Michael Krancer to a local environmental group, the Clean Air Council.
The problem at the Chesapeake Energy Corp. well in Leroy Township has affected a two-squre-mile area with higher-than-normal methane levels.
The well had a failed packer and the leak may been aggravated by increased well pressure, state officials said.
Chesapeake Energy Corp,the Oklahoma-based firm is the No. 1 driller in Ohio.
Rig Count Interactive Map by Baker Hughes, an energy services company.
Shale Sheet Fracking, a Youngstown Vindicator blog.
The Ohio Environmental Council, a statewide eco-group based in Columbus.
Earthjustice, a national eco-group.
People's Oil and Gas Collaborative-Ohio, a grass-roots group in Northeast Ohio.
Concerned Citizens of Medina County, a grass-roots group.
No Frack Ohio, a Columbus-based grass-roots group.
Fracking: Gas Drilling's Environmental Threat by ProPublica, an online journalism site.
Pipeline, blog from Pittsburgh Post-Gazette on Marcellus shale drilling.
Allegheny Front, environmental public radio for Western Pennsylvania.