Pennsylvania Gov. Ed Rendell on Thursday proposed new rules to strengthen state regulation of natural gas drilling to protect drinking water supplies and announced the hiring of 68 new inspectors.
[Regulations] would require energy companies to restore or replace water supplies affected by drilling; require operators to notify regulators of any leakage of gas into water wells; and direct drillers to construct well casings from oilfield-grade cement designed to prevent leakage of drilling fluid into underground water supplies.
To bolster enforcement, the state's Department of Environmental Protection was hiring 68 new inspectors in addition to the 120 already on staff.
Pennsylvania officials say energy companies have applied for 5,200 permits in the Marcellus Shale this year, almost triple the number in 2009, as drillers scramble to develop the huge gas field underlying about two-thirds of Pennsylvania and parts of surrounding states.