The Pittsburgh Post-Gazette reports that methane gas has bubbled to the surface in three residential wells and two streams in Pennsylvania's Bradford Counjty.


The problem surfaced late last weekabout a half mile from two Marcellus shale wels drilled by Chesapeake Energy Corp..


The state Department of Environmental Protection and Chesapeake have been investigating the problem that surfaced in the water wells, two tributariues of Towanda Creek and a wetland in Leroy Township.


Samples were taken at the Chesapeake wells to run isotopic gas fingerprinting tests, officials  said.


Alternate water has been provided to the residents.