"For more than two years, the natural gas drilling debate has focused primarily on the use of hydraulic fracturing in horizontal wells. But expert testimony submitted for a government hearing next month challenges long-held assumptions about the safety of deep vertical drilling and exploratory wells, which operate in many states with limited regulatory oversight.
The administrative hearing will be held by the Delaware River Basin Commission , a federal agency that regulates a variety of water and land activities in Pennsylvania, New York, New Jersey and Delaware. At issue is the commission’s June 2010 determination that companies that drill exploratory wells—wells that are drilled to test theories about where gas might be found—must obtain the agency’s approval before drilling within its jurisdiction, and whether or not 11 exploratory wells in Pennsylvania that have already been approved should be exempt from the regulation.
The commission rarely holds hearings, and the progress of this one is being followed closely by industry and environmental advocates because of its implications for the drilling boom in the gas-rich Marcellus Shale rock formation, which underlies much of the basin." More>>>>